NAD S-170-I Owners manual

S170i

AV Surround Sound Preamplifier

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Owner’s Manual Manuel d’Installation Bedienungsanleitung Manual del Usuario

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SAFETY INFORMATION

EXPLANATION OF GRAPHICAL SYMBOLS

The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

PRECAUTIONS

Read the Operating Instructions carefully and completely before operating the unit. Be sure to keep the Operating Instructions for future reference. All warnings and cautions in the Operating Instructions and on the unit should be strictly followed, as well as the safety suggestions below.

INSTALLATION

1Water and Moisture - Do not use this unit near water, such as near a bathtub, washbowl, swimming

pool, or the like.

2 Heat - Do not use this unit near sources of heat, including heating vents, stoves, or other appliances

that generate heat. It also should not be placed in temperatures less than 5°C (41°F) or greater then 35°C (95°F).

3 Mounting surface - Place the unit on a flat, even surface. 4Ventilation - The unit should be situated with adequate space around it so that proper ventilation is

assured. allow 10 cm (4 in.) clearance from the rear and the top of the unit, and 5 cm (2 in.) from each side. - Do not place on a bed, rug, or similar surface that may block the ventilation openings. Do not install the unit in a bookcase cabinet, or airtight rack where ventilation may be impeded.

5 Objects and liquid entry - Take care that objects or liquids do not get inside the unit through the

ventilation openings.

6 Carts and stands - When placed or mounted on a stand or cart, the unit should be moved with care.

Quick stops, excessive force, and uneven surfaces may cause the unit and cart to overturn or fall.

7 Condensation - Moisture may form on the CD pickup lens when:

• The unit is moved from a cold spot to a warm spot.

• The heating system has just been turned on.

• The unit is used in a very humid room.

• The unit is cooled by an air conditioner. When this unit has condensation inside, it may not function normally. Should this occur, leave the unit for a few hours, then try to operate again.

8Wall or ceiling mounting - The unit should not be mounted on a wall or ceiling, unless specified in

the Operating Instructions.

WARNING! TO REDUCE THE RISK OF FIRE OR ELECTRONIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE

This product is manufactured to comply with the radio interference requirements of EEC DIRECTIVE 89/68/EEC and 73/23/EEC

SAFETY INFORMATION

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ELECTRIC POWER

1 Power Sources - Connect this unit only to power sources specified in the Operating Instructions, and

as marked on the unit.

2 Polarization - As a safety feature, some units are equipped with polarized AC power plugs which can

only be inserted one way into a power outlet. If it is difficult or impossible to insert the AC power plug into an outlet, turn the plug over and try again. If it still does not easily insert into the outlet, please call a qualified service technician to service or replace the outlet. To avoid defeating the safety feature of the polarized plug, do not force it into a power outlet.

3 AC power cord - When disconnecting the AC power cord, pull it out by the AC power plug. Do not

pull the cord itself.

• Never handle the AC power plug with wet hands, as this could result in fire or shock.

• Power cords should be routed to avoid being severely bent, pinched, or walked upon. Pay particular attention to the cord from the unit to the power socket.

•Avoid overloading AC outlets and extension cords beyond their capacity, as this could result in fire or shock.

4 Extension cord - To help prevent electric shock, do not use a polarized AC power plug with an

extension cord, receptacle, or other outlet unless the polarized plug can be completely inserted to prevent exposure of the blades of the plug.

5 When not in use - Unplug the AC power cord from the AC outlet if the unit will not be used for

several months or more. When the cord is plugged in, a small amount of current continues to flow to the unit, even when the power is turned off.

CAUTION

Modifications or adjustments to this product, which are not expressly approved by the manufacturer, may void the user’s right or authority to operate this product.

MAINTENANCE

Clean the unit only as recommended in the Operating Instructions.

DAMAGE REQUIRING SERVICE

Have the unit serviced by a qualified service technician if

• The AC power plug has been damaged.

• Foreign objects or liquid have gotten inside the unit.

• The unit has been exposed to rain or water - The unit does not seem to operate normally.

• The unit exhibits a marked change in performance.

• The unit has been dropped, or the cabinet has been damaged

DO NOT ATTEMPT TO SERVICE THE UNIT YOURSELF

OWNER’S RECORD

For your convenience, record the model number and serial number (you will find them on the rear of your set) in the space provided below. Please refer to them when you contact your dealer in case of difficulty.

Model No. :

Serial No. :

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Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

Getting the Most from the NAD S170i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Unpacking and Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

What's in the Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Choosing a Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

About the S170i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8

E.A.R.S. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

About THX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Ease of Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Integration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Upgradability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

About the HTR 2 System Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

About the ZR 2 Zone 2 Multi Source Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Quickstart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Play a DVD Movie (or Music CD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Setting up the S170i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Getting Started. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Using the HTR 2 Remote. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Dealing With Hum and Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

About the On-Screen Displays (OSD) and Front-Panel Readout . . . . . . . . . . . . . . . . . . . . . . . .13

Displaying the Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Configuring the S170i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-20

Display setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Audio setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Speaker Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Level setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Delay setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Source Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Trigger setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Using the S170i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22-30

Selecting Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Adjusting the Volume. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Setting Listening Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Adjusting Channel Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Adjusting the Tone Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Front Panel Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Listening in a Remote Zone (MultiSource) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

NAD Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

System Integration (RS-232) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Using the HTR 2 Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31-38

Overview of the HTR 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Learning Codes From Other Remotes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Library Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Punch-Through. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Copy a Command From Another Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Macro Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Recording Macros. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Executing Macros . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Key-Illumination Time-out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Factory Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Delete Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Summary of HTR 2 modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

HTR 2 Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

TABLE OF CONTENTS

GETTING THE MOST FROM THE NAD S170i

THANK YOU FOR CHOOSING NAD.

The S170i A/V Surround Sound Preamplifier is one of the most technologically advanced surroundprocessor/preamplifiers yet devised, incorporating advanced, ultra-high-speed 32-bit digital signal processing, an architecture that is fully upgradeable (in both hardware and software), and extraordinarily precise 24-bit precision/96 kHz-sampling digital-to-analog conversion for all channels.

More importantly, it is among the most musically transparent and spatially accurate designs available, the culmination of everything we’ve learned, over a quarter-century, about music and home-theater reproduction. With our company’s “Music First” design philosophy as its guiding design principle, we’re confident that the S170i will make good our promise to you of delivering both a state-of-the-art surround home-theater experience, and a genuinely audiophile-quality music listening, for many years to come.

We urge you to take a few minutes now to read right through this manual. Investing a little time now, at the outset, might save you a good deal of time later, and is by far the best way to ensure that you make the most of your investment in the NAD S170i, and get the most from this powerful and flexible home theater component.

One more thing: We urge you to register your S170i ownership on the NAD Worldwide Web site:

HTTP://NADELECTRONICS.COM/W/REGISTRATION.HTML

This is by far the best way to ensure that we at NAD world headquarters can inform you of possible future software and firmware updates, changes that might significantly enhance the performance and utility of your S170i. Please also send in your warranty card, so that your local NAD organization will have a record of your purchase, and save your original purchase receipt. This will assure you of warranty service in your area.

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UNPACKING AND SETUP

WHAT’S IN THE BOX

Packed with your S170i preamplifier you will find:

•A removable AC cable (if you wish, any IEC-standard AC cable of suitable wattage may be substituted)

•1 DC trigger cable

• The HTR 2 Learning Remote controller with batteries (4 x AAA)

• The ZR 2 second zone remote controller with battery (1 x CR2025)

•A pair of white cotton gloves-for handling your S170i during setup without fear of scratches or fingerprints

• This owner’s manual

SAVE THE PACKAGING

Please save the box and all of the packaging in which your S170i arrived. Should you move or otherwise need to transport your preamplifier, this is by far the safest container in which to do so. We’ve seen too many otherwise perfect components damaged in transit for lack of a proper shipping carton, so please: Save that box!

CHOOSING A LOCATION

We hope you will agree that the S170i’s finish-quality and appearance earn it pride of place in any home theater or music system. Choose a location that is well ventilated (with at least several inches to both sides and behind), and that will provide a clear line of sight, within 25 feet/8 meters, between the preamp’s front panel and your primary listening/viewing position to ensure reliable infrared remote control communications. Due to the S170i’s high-speed DSP hardware and high-current audio circuits it generates a modest amount of heat, but nothing that should trouble any adjacent components. It is perfectly safe to stack additional components atop the S170i, or vice versa, but it is probably preferable (and considerably more handsome) if the S170i stands alone.

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ABOUT THE S170i

Though the S170i A/V preamp is among the most powerful and sophisticated digital-surround decoder/processors available, we worked hard to make it one of the most musically transparent hometheater components as well; this is what we mean by NAD’s “Music First” design philosophy. Here are just a few examples:

• The S170i employs the latest, most sonically pure high-performance FET components throughout its analog audio circuits

• Exceedingly low output impedance from all channels (long an NAD hallmark) eliminates sonic impact from cables and amplifier input-impedances

• Output muting is via reliable, sonically transparent gold-contact relays rather than sound-coloring electronics

• Gold-surfaced connectors are employed throughout both internally and externally to ensure unimpeded signal transfer.

E.A.R.S.

A key element of the S170i’s unique musicality is NAD’s proprietary Enhanced Ambience Recovery System (EARS). In sharp contrast to many “ambience-synthesis” music-surround modes, EARS exploits the S170i’s substantial DSP power to route the ambient content that is “encrypted” in virtually all natural-acoustic recordings to the appropriate main, center and surround speakers, without resorting to artificially generated reflections or regeneration. EARS’ natural ambience yields a subtle but extraordinarily effective surround mode that naturally enhances the spatial presentation in a fashion suitable for serious music listening.

On the digital side, the S170i combines ultra-high-speed DSP processing employing one of the most advanced high-speed DSP “engines” available, with fully 24-bit, 96 kHz-sampling-capable D/A converters for all channels. A single, high-precision master clock runs all digital circuits to eliminate the timing errors (“jitter”) that otherwise occur between digital stages, compromising sonics. The result is legitimately stateof-the-art surround decoding from Dolby Digital and DTS sources in both 5.1-channel and 6.1channel/7.1-output modes, and genuinely superior sound quality in all modes.

ABOUT THX

The S170i preamplifier is certified by THX Ltd as meeting the rigorous requirements of its home THX/Ultra 2 program for surround controllers. This means that it is capable of delivering an audio experience equal to that of the finest commercial cinemas when its superb fundamental performance is combined with the surround enhancements mandated by the THX/Ultra 2 program.

EASE OF USE

We invested no less effort in making the S170i powerfully easy to use than that expended in making its sonic performance second to none. Its design is unusually simple for so sophisticated a component, and the HTR 2 remote controller is uniquely self-prompting and intuitive to use, as are the S170i’s own frontpanel and on-screen displays. A powerfully simple system of presets will permit you to fine-tune your listening setup for different conditions, and recall these multiple parameters with two key presses

INTEGRATION

The S170i preamplifier offers extensive, flexible system-integration options through its three configurable DC triggers outputs, as well as via NAD’s proprietary NAD Link inter-component communications protocol. Additionally, an RS-232 serial port stands ready to integrate the preamp with still more sophisticated controllers such as touch-screen systems and whole-house automation installations.

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ABOUT THE S170i

UPGRADABILITY

A unique feature of the S170i is its modular construction. All of the S170i’s “intelligence” is located on a single plug in module. This sophisticated architecture simplifies servicing, and makes future upgrading a possibility. Because of the extraordinary processing speed and power of the S170i, we frankly do not foresee the possible need for hardware upgrades at this time. Never-the-less, it’s nice to know that the S170i is not likely to become obsolete anytime soon.

We have made the more likely scenario of software upgrades easy to accomplish via the high speed RS–232 port on the rear panel of the S170i. Owners who register their S170i on our international web site www.NADelectronics.com will be advised of updates. Some of these may be free of charge, and some may require royalty payments depending on the type of upgrade. The advanced user will be able to perform these upgrades by downloading files from our web site via e-mail, and installing them by connecting the S170i to a PC. Alternatively the dealer from whom you purchased your S170i should be able to assist in performing these upgrades.

ABOUT THE HTR 2 LEARNING REMOTE CONTROL

Packed with your S170i is the NAD HTR 2 multi-component learning remote control. This handy device can control a total of 8 different components, such as your DVD Player, TV set, and Satellite control box, dramatically simplifying the operation of your entire Home Theatre while reducing the “coffee table clutter” of multiple remotes. The HTR 2’s buttons illuminate when any button is pressed, making operation under low light conditions easier and more enjoyable.

To operate the HTR 2, you must first select which of the 8 components or the “device” you wish to control, such as AMP, TV, DVD, etc. The remaining 46 buttons are now set to control the selected device. This can be a little confusing at first, but once understood, the power of using just one remote handset to control any device in your system makes the operation of your Home Cinema far more enjoyable.

Code tables for all NAD components are included, and other manufacturer codes are easily learned from the units’ remote to any button on the HTR 2 remote. Additionally, “macros” or strings of commands that perform all the individual steps required to “play a DVD” can easily be created and stored for instant recall. This advanced functionality makes even complex AV systems easy to operate.

Please read the HTR 2 section of this manual for complete, step-by-step instructions on using all the features of this remarkable Home Theatre Remote handset.

ABOUT THE ZR 2 SECOND ZONE REMOTE CONTROL

You will also find a small remote called the ZR 2 that has the specialized function of controlling the MultiSource or Zone 2 audio output. This allows completely independent source selection and volume in a remote area of your home. Using aftermarket (Xantech) remote sensors and the NAD Link feature of the S170i, you can control the MultiSource output from the remote location with the ZR 2.

Read the section of this manual “Listening in a Remote Zone” for more information.

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QUICKSTART

In case you simply cannot wait to experience the performance of your new S170i preamplifier, we provide the following “quickstart” instructions to get you underway. They assume that the DVD/CD player is connected to the VIDEO1 input and that the appropriate audio and video connections have been made.

PLAY A DVD MOVIE (OR MUSIC CD)

From the HTR 2 Press the [AMP] device key first (this selects the S170i) then press the power [ON] key, then the [DVD] key (also labeled with the numeral “1”) Use the HTR 2 remote’s [VOLUME up/down] keys to adjust the volume.

Start playback of the DVD/CD player. Pressing the [SURR. MODE] key of the HTR 2 (located nest to the VOLUME DOWN key) end then pressing the [Cursor ] key you can cycle through all the S170i listening modes that are available for the current input signal type (see “About the S170i’s Listening Modes,” below).

Depending on the signals format and connections you have made, some listening modes may not yet be available; see “Setting up the S170i” below. You may need to use the DVD player’s on-screen menu system to select a surround-capable signal format.

Enjoy the movie or music, but be sure to set aside time to read this manual thoroughly and to set up, calibrate, and configure your S170i carefully.

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FRONT PANEL

1 POWER: Switch off to disconnect the S170i from all AC power and

exit the Standby mode. Switching POWER on both reconnects the AC and actively power-up the preamp.

2STANDBY: Illuminates when the S170i is in the Standby or On mode

(dark when the S170i is powered-off).

3 AUDIO: Press to select audio inputs sequentially using the VOLUME

(SETUP) knob (see “Front Panel Operations,” below).

4 VIDEO: Press to select video inputs sequentially using the VOLUME

(SETUP) knob (see “Front Panel Operations,” below).

5TAPE MONITOR: Press to engage the Tape Monitor loop. The signal

present at the rear-panel TAPE MONITOR IN jacks will be heard (see “Front Panel Operations,” below).

6 MULTISOURCE: Press to select the signal output by the rear-panel

MULTISOURCE OUT jacks using the VOLUME (SETUP) knob (see “Listening in a Remote Zone,” below).

7 SPEAKERS: Press to access the <Speaker setup> menu on the front

panel readout, and to select parameters using the using the VOLUME (SETUP) knob and subsequent presses of the SPEAKERS key (see “Configuring Your S170i,” and “Front Panel Operations,” below).

8DELAY: Press to access the <Delay setup> menu on the front-panel

readout, and to select parameters using the using the VOLUME (SETUP) knob and subsequent presses of the DELAY key (see “Configuring Your S170i,” and “Front Panel Operations,” below).

9 LEVELS : Press to access the <Levels setup> menu on the front-panel

readout, and to select parameters using the using the VOLUME (SETUP) knob and subsequent presses of the LEVELS key (see “Configuring Your S170i,” and “Front Panel Operations,” below).

10 BRIGHTNESS: Press to dim the S170i’s front-panel readout; press

again to restore full brightness.

11 TONE: Press to adjust treble using the VOLUME (SETUP) knob; press

again to adjust bass, and a third time to exit tone-control adjustment.

12 MODE: Press to select listening modes sequentially using the

VOLUME (SETUP) knob (see “Setting Listening Modes,” and “Front Panel Operations,” below).

13 VOLUME (SETUP): Turn clockwise to increase the master-volume

setting; counterclockwise to lower it. The VFL and on-screen displays show the setting, displayed in decibels between -90 to +16. The VOLUME (SETUP) knob is also used to increment/decrement individual channel levels and other adjustable parameters.

14 VFL DISPLAY: The Vacuum Fluorescent Display provides visual

information on all of the S170i's important modes, settings, and functions for both MAIN and second ZONE locations.

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REAR PANEL

ATTENTION!

Please make all connections to your S170i preamplifier with the unit powered off or unplugged. (It is equally wise to power-down or unplug all associated components while making or breaking any signal or AC power connections.)

1 COMPOSITE VIDEO IN 1-6: Connect Video Inputs 1-6 to composite

video from source components (see “Source Setup,” below).

2 COMPOSITE VIDEO OUT 4-6 OUT; MON OUT: Connect to

composite-video record-inputs of recording components; connect MON OUT to the composite-video input of the video monitor/TV.

3S VID1 IN - S VID6 IN: Connect Video Inputs 1-6 to S-Video from

source components (see “Source Setup,” below).

4S VID4 OUT - SVID6 OUT; MON OUT: Connect to S-Video record

inputs of recording components; connect MON OUT to the S-Video input of the video monitor/TV.

5 COMPONENT VIDEO IN (upper), OUT (lower): Connect inputs to

component-video signal or wide-band component video from a source component such as a DVD player or HDTV tuner; connect outputs to the component-video inputs of the video monitor/TV. Be sure to observe consistency in connecting the Y, CB, and CR jacks to the corresponding sources/inputs (see “Source Setup,” below).

6 NAD LINK IN/OUT: Connect to the corresponding NAD Link jacks

(input to output and vice versa) of compatible NAD components (see “NAD Link,” below).

7 DIGITAL 1-3; DIGITAL IN; DIGITAL OUT: Connect DIGITAL 1-3 to

coaxial S/PDIF-format digital sources such as CD or DVD players; connect DIGITAL IN to a high-quality S/PDIF-format source via BNC cabling; connect DIGITAL OUT to the coaxial S/PDIF digital input of a recording component such as a CD recorder, DAT deck, or computer soundcard (see “Source Setup,” below).

8 OPTICAL DIGITAL IN 1-2; DIGITAL IN; OPTICAL DIGITAL OUT:

Connect OPTICAL DIGITAL 1-2 to optical S/PDIF-format digital sources such as CD or DVD players; connect OPTICAL DIGITAL OUT to the optical S/PDIF digital input of a recording component such as a CD recorder, DAT deck, or computer soundcard.

9 RS-232: Connect to the RS-232 serial port of a home-automation

system or personal computer (see “System Integration,” below).

10 VIDEO 1-6 Analog Audio Inputs: Connect to stereo analog

outputs of audio-video sources (see “Source Setup,” below).

11 VIDEO ANALOG REC OUT 4-6: Connect to stereo analog inputs of

recording audio-video components such as videocassette recorders.

12 CD, AUX, TUNER Inputs: Connect to stereo analog outputs of

audio components.

13 TAPE MONITOR IN/OUT: Connect OUT to the stereo analog inputs,

and IN to the outputs of an audio recording components such as a cassette deck or CD recorder, or of an analog audio processor such as a stereo equalizer.

14 MULTISOURCE OUT: Connect to the inputs of the stereo amplifier

(integrated amp, receiver) that will power the remote-zone’s loudspeakers (see “Listening in a Remote Zone,” below).

15 PREAMP ANALOG 7.1 OUTPUTS: Connect L, R, and CENTER to

the channel inputs of the power amplifier(s) driving the front, channels; connect LS and RS to the power amplifier driving the surround speakers and LEFT B and RIGHT B to that driving the surround-back speakers (if any); connect sub to the line input of a powered subwoofer or to the amplifier driving a passive sub (if any).

16 EXTERNAL 5.1 INPUTS: Connect to the corresponding analog

audio outputs of a multichannel source component such as a DVDAudio or multichannel SACD player. There is no bass-management or other processing available to these inputs; see “Selecting Sources,” below.

17 12V TRIGGERS: Connect to the 12-volt trigger inputs of compatible

components such as power amplifiers and projector lifts; see “Trigger setup,” below.

18 AC power inlet: Connect to the supplied IEC-standard removable

AC power cord or a compatible cord.

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SETTING UP THE S170i

GETTING STARTED

Before you make the first connection to your S170i, you should have the arrangement of your listening room/home theater components and furniture mapped out, at least initially. Unfortunately, a discussion of the vital questions of loudspeaker placement and listening/viewing positions is beyond our scope here. Suffice it to say that these two questions will influence your system’s ultimate performance every bit as powerfully as your selection of electronics and speakers. Your NAD audio specialist dealer will be happy to advise you, and to recommend reference materials.

DEALING WITH HUM AND NOISE

The S170i requires a grounded (3-prong) AC outlet. Employing a 3-to-2 adapter to eliminate the ground prong will not compromise electrical safety, but it may increase susceptibility to hum and noise. Hum and noise sometimes prove a challenge in complex, multichannel audio systems. Note these considerations to help prevent hum and noise problems:

• Power all your system’s audio component from AC outlets originating from the same circuit of your house wiring. As far as possible, power all audio components from the same outlet, or adjacent outlets on the same circuit. It may be useful to power video displays (and computers!) from outlets on another circuit, especially if that circuit is supplied from the other “leg” of the house wiring.

• Do not bundle analog audio cables with AC power cables, or with coaxial digital-audio cables.

• Employ high-quality, well-shielded audio cable throughout, and ensure that all connections are secure.

•A pencil-eraser can be used to burnish copper- and gold-plated contacts to ensure good, lowresistance contact; specialized contact-cleaners can also be useful. Avoid unnecessary unplugging and re-plugging, since the gold (or copper) contact-plating of typical cable connectors, even very highquality ones, is very thin and easily worn.

Track down hum/noise problems one component at a time, working backwards from the power amplifier(s). That is: Connect the speakers to the power amplifier only, and check for hum. Then connect the preamplifier alone (with no other components connected to the preamp) to the power and check for hum. Then connect one source component (a CD player, for example) to the preamplifier, and check for hum. At each stage, if hum/noise appears, examine the audio cabling and AC-power routing of the new component. In some cases, moving the new component’s AC cord to a different outlet, or installing a ground-lift (3-to-2-prong adapter) on its power cord, will eliminate the hum.

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ABOUT THE ON-SCREEN DISPLAYS (OSD) AND FRONT-PANEL READOUT

The S170i preamplifier employs a simple, self-explanatory system of on-screen display “menus” that will appear on the system’s video monitor/TV, useful both during setup and in day-to-day operation. While the OSDs are always helpful, it is also perfectly possible to operate (or even set up) the S170i without them, because the same basic data is always shown, though sometimes in shortened format, on the preamp’s own front-panel readout.

DISPLAYING THE MENUS

Once a video monitor (TV) is connected to the Monitor Output of the S170i, pressing the left or right

cursor keys of the HTR 2 remote will access the S170i’s OSD (On Screen Display) where all system

setup parameters can be easily adjusted using the up and down and [ENTER] keys.

• If the OSD does not appear, check your Monitor Out connections, and/or the settings of the <Video format> and <OSD display> items of the <Display setup> menu (see below) using the S170i’s frontpanel readout.

NAVIGATING THE OSD AND MAKING CHANGES

Use the remote’s [Cursor ] keys to move up or down among any OSD menu’s list of items; use the [Cursor ] keys to change the value (setting) of any item; use remote’s [Enter] key to select an OSD menu item. Selecting <Exit> from the Menu Page saves any changes you have made and departs that menu for the next “higher” level (or, from the Main Menu, turns the OSD off).

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CONFIGURING THE S170i

You may set up your S170i’s levels, modes, and options in any order; it is not necessary to follow the order employed here. However, it is advisable to begin by configuring the S170i’s on-screen display options, since certain of these will affect the options made available to other setup routines.

DISPLAY SETUP

From the S170i OSD’s Main menu, select the <Display setup> item using the remote’s [Cursor ], and [Enter] keys. Using the [Cursor ] keys, set: <TV system> to “NTSC” for North American use, or “PAL.” for European use.

Using the same remote keys, set:

• <Superimpose> to “On” or “Off. When “Off” is selected, on-screen menus will appear against a blue background, obscuring the current video program (if any); when “On” is selected menus will appear in white text superimposed upon the current video program (if any).

•<Temporary disp.> to “Full,” “Simple, or “Off.” This controls how much information the S170i will display, monetarily, in on-screen text whenever powering on, selecting or changing a source or listening mode, or changing types of input signals. In “Full” mode a complete screen of data including input-name, audio-signal input, type, format, and listening mode, and video-signal type and input; in “Simple” mode, only input-name will appear. In “Off” mode no temporary on-screen info will be displayed.

•<Video format> to “Auto,” “SVideo,” or “Compos.” (composite-video). This controls which S170i video outputs will be active when a video input is selected; in “Auto” mode, the output mode will be selected according to the format of the incoming signal, with S-Video taking precedence where a source is connected via both formats. Note that the S170i preamplifier passes video signals even when it is switched to “Standby.” This permits video sources such as TeleText or Web-TV devices to be used even when the balance of the system is off.

• <OSD output> to “Both,” “SVideo,” “Compos.” (composite-video), or “Off.” This controls which video outputs will carry the S170i’s on-screen displays and menus. When “Both” is selected OSDs will be present on both the S-Video and composite-video Monitor Outputs; selecting “SVideo” or “Compos.” confines on-screen displays to each output alone, and “Off” disables on-screen displays altogether. (In all cases, basic data remains readable via the S170i’s front-panel readout, so you can, for example, see what you’re doing even with OSDs set to “Off.”)

NOTE THAT:

• OSDs do not appear on the component-video output

• Enabling OSD for a video output causes the video source signals in that format to “pass through” the OSD circuitry. Critical videophiles may wish to disable the OSD on the SVideo output for the most critical viewing/recording functions.

• <Distance units> to “Feet” or “Meters.” This selects by which measurement units you will enter your speaker-setup dimensions on the S170i’s <Delay setup> menu page (see below).

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CONFIGURING THE S170i

AUDIO SETUP

The <Audio setup> menu enables you to modify tone-control settings and other listening options. Modifications you make on this menu will remain in affect until changed again, or until a Preset containing different settings is recalled (see below).

DOLBY/DTS SETUP

From the <Audio Setup> menu, select the <Dolby/DTS setup> item using the remote’s [Cursor ] keys, then press [Enter], this will show a sub menu with the following choices to adjust the music modes of the Dolby and DTS surround decoders:

<PL II Panorama> select <Off> or <On>

When selected <On> the Panorama setting wraps the sound of the Front Left and Right speakers around you for an exciting effect.

<PL II Center Width> select <Min.> <1> <2> <3> <4> <5> <6> <Max.>

Center Width allows you to gradually spread the Center channel sound into the Front Left and Right speakers. At the widest <Max.> setting all the Center speaker sound is mixed to the Left and Right speakers. This control may help achieve a more spacious sound, or a better blend of the front image.

<PL II Dimension> select <0> <1> <2> <3>

Dimension adjusts the front/back balance to taste.

<Neo:6 Center Image> select <Min.> <1> <2> <3> <4> <Max.>

Center Image allows you to gradually spread the Center channel sound into the Front Left and Right speakers.

PRESET SETUP

The S170i incorporates five “Presets,” memory locations in which you may store five different combinations of tone-control and relative center/surround/subwoofer channel levels to suit different requirements. For example: You might configure Preset 1 for movie-surround with tone controls set to zero and relative channel levels left at their calibrated points, but set Preset 2 for music-surround listening with slightly elevated surround- and subwoofer-channel levels, slightly reduced center-channel levels, and modified bass or treble. Presets may be configured in any way, for any purpose you see fit.

CONFIGURING PRESETS

From the <Audio setup> menu, use the remote’s [Cursor ] and [Enter] keys to select the <Preset setup> item. Using the same keys, select the Preset to be configured on the <Preset> item; then invoke the bass and treble settings desired for that preset using the same keys. With the same keys again, set the relative levels of Center, Surround, and Subwoofer channels for that preset.

NOTE THAT:

• If surround-back speaker(s) are configured as present in the <Speaker setup> OSD menu (below), their levels will be controlled along with the surround-channels levels.

• Once configured, a Preset remains unchanged until you edit it via the <Preset setup> OSD menu.

•A Preset applies regardless of what source is selected, or what listening mode is in operation

• Cycling the S170i through its Standby mode will cancel any previously selected Preset, reverting both tone and all level settings to those set on the HTR 2 remote’s LEVELS or MODE/MULTI.S screens (below), or via the S170i preamp’s <Audio setup> (above) OSD menu. If you would like to be able to set all channel-levels and tone-control values to zero without cycling through Standby, set one Preset to “all zeroes.”

• Channel levels stored in presets (are added to the setup levels established on the S170i preamp’s <Levels setup> OSD menu. For example: if your <Level setup> establishes <Center> at “-3 dB” and you dial in a Preset center-channel level of +2 dB, the net overall effect will be a center-channel level of -1 dB. By contrast, tone-control settings override <Audio setup> tone levels entirely.

RECALLING PRESETS

To implement the preset at any time, sequentially press the HTR 2’s [AV PRESET] key and the corresponding numeral key <1 - 5>. Cycling the S170i through Standby mode will release the preset. the number of the preset invoked will appear briefly on the OSD and the S170i’s front-panel display. (See also Using Presets, below)

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CONFIGURING THE S170i

BASS/TREBLE

From the <Audio setup> menu, select the <Bass> or <Treble> item using the remote’s [Cursor ], keys. Using the [Cursor ] keys, you may increase or decrease Bass or Treble settings by ±12 dB by 1 dB steps.

• Bass/treble settings affect only the front channels (left, center, and right), and are active in all listening modes

• It is often better to “cut” (a minus setting) than boost (a plus setting); for a “warmer” overall sound try reducing Treble by a few dB instead of boosting Bass, and vice versa.

•If you frequently find yourself selecting large tone control settings, you may be better served by reexamining your choice of loudspeakers, and your loudspeaker and listening-position locations to better exploit your room’s acoustics.

LFE CHANNEL

The Low-Frequency Effects channel—-the “point-one” channel in “5.1/6.1”—-is active only with Dolby Digital or DTS multichannel sources. LFE is employed most often as a supplementary channel to enhance the dynamic range of very low-frequency sounds; it should not be confused with the S170i’s Subwoofer output-channel, which may carry most or all bass information from some or all channels, depending on the configuration of the <Speaker setup> menu page.

From the <Audio setup> menu, select the <LFE channel> item using the remote’s [Cursor ], keys. Using the [Cursor ] keys, you may decrease the LFE channel setting by as much as 10 dB in 1 dB decrements.

In most systems the LFE channel setting may be left at 0 dB (no change), because the S170i’s Bass Limiter (see below) will be set to prevent subwoofer overload. However, if your subwoofer’s headroom is known to be limited, or if the low-frequency effects of film soundtracks generally seem excessive in your system, you might profitably try decreasing the <LFE channel> setting by a modest degree.

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CONFIGURING THE S170i

SPEAKER SETUP

Every surround-sound system requires “bass-management” to direct low-frequency content from any or all channels to the speakers best able to reproduce it. In order for this function to operate correctly, it is very important that you correctly identify your speakers’ capabilities.

We use the terms “Small” and “Large” (and “No”), but note that physical size may be irrelevant.

•A “Small” speaker is any model without significant deep-bass response, that is, below about 80 Hz.

•A “Large” speaker is any full-range model, that is, one with deep-bass response

•A “No” speaker is one that is not present in your system. For example, you might not have any Back speakers installed; in that case, you would set the <Back speakers> setup item to “No.”

CONFIGURING SPEAKERS

From the OSD Main menu, select the <Speaker setup> item using the remote’s [Cursor ], and [Enter] keys. Using the [Cursor ] keys, set <Main speakers> to “Large” or “Small.” Using the same remote keys, set the <Center speaker>, <Surround speakers>, and <Back speakers> to “Large,” “Small,” or “No,” according to your system’s loudspeaker population. Set <Subwoofer> to “Yes” only if you have a subwoofer connected to the S170i’s SUB preamp analog output jack.

NOTE

The S170i permits you to set Subwoofer to “Yes” even with “Large” front speakers: In this case, bass content from any channels you set to “Small” will be routed to both the subwoofer and to the front speakers. You might want to try this arrangement way if your front speakers roll off naturally at about the 80 Hz crossover frequency and can handle strong bass signals without distortion or damage. In most systems using a subwoofer, setting front speakers to “Small” is usually the best option.

There are three additional features in the <Speaker setup> menu:

• Adjustable Crossover Frequency selectable in 10 Hz increments from 40 Hz to 140 Hz. This adjusts both the High Pass (2nd order, 12 dB/octave) feed to the loudspeaker, and the Low Pass (4th order, 24dB/octave) feed to the subwoofer.

• Defeatable Subwoofer Filter. This allows you to use your powered subwoofer’s internal crossover. This can be beneficial to tame difficult room acoustics problems by setting the subwoofer crossover to a different frequency than the S170’s High Pass filter to create a notch or an overlap in the response.

• Enhanced Bass, when selected, always has the subwoofer active, regardless of speaker settings, for maximum boom.

LEVEL SETUP

Setting the relative balance of your system’s loudspeakers is perhaps the most important single function of setting up your S170i. First, this process ensures that surround-sound recordings, whether music or film soundtracks, will play back with the balance of effects, music, and dialog that the artists intended. Second, if your system incorporates a subwoofer, it establishes a correct relationship between the volume of the subwoofer and the other speakers, and thus of low-frequencies (bass) to other sonic elements.

USING AN SPL METER

It is perfectly possible to perform the S170i Level setup routines “by ear,” and an experienced ear will usually produce acceptably accurate results. However, the timbral differences among front, center, and surround speakers can make accurate level-matching difficult. Therefore, we strongly recommend the use of an inexpensive sound-pressure level (SPL) meter, such as Radio Shack part number 33-2050, for this task. It is quick, repeatable, and reliable. Ownership of such a meter may prove a very useful audio tool, or your NAD audio specialist may be able to help you with temporary use of a meter. Calibrating your system with an SPL meter also permits you to set its overall level so that, when the S170i’s Master Volume control is set to -0 (“reference level”), the playback in your home theater matches the loudness of the same film projected in a well-set-up commercial cinema. (Of course, you can still set the Master Volume wherever you like from day to day.)

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CONFIGURING THE S170i

The SPL meter should be placed at the primary listening position, at approximately the height of the seated listener’s head. A tripod is very useful, but with a little duct-tape almost anything—-a pole lamp, music-stand, or ladder-backed chair, for example—-can do as well. Just be sure that no large acoustically reflective surfaces obstruct or are near the microphone element. Orient the meter with its microphone (usually at one end) pointing straight up toward the ceiling (not forward toward the speakers) and make sure that its “C” weighting scale is selected. To calibrate your system to play at the same objective loudness as a high-quality commercial cinema, set the meter to display 75 dB SPL. (On Radio Shack meters this necessitates either setting the meter to its 80 dB range and taking your readings at the -5 point, or selecting the 70 dB range and reading at the +5 point.

This 75 dB SPL point is the “official” cinema (and THX) reference level. However, we note that no law requires you to use this level, and in fact this reference seems too loud for some users for home cinema playback. Many people find that calibrating to 70 dB SPL instead turns out just about right.

CONFIGURING LEVELS

From the OSD Main menu, select the <Level setup> item using the remote’s [Cursor ], and [Enter] keys. Activate the test-noise signal with the remote’s [Test] key(next to the [Volume up] key); you will here a “surf” noise that cycles through your speakers, beginning with the left-front. (If you do not hear the testnoise, check your Audio Connections (above), and your <Speaker setup> OSD menu settings, (above.)

On the left-most column of the OSD you’ll see an > pointing toward <Left> (if the is at some other line, use the remote’s [Cursor ] keys to move it to <Left>.) Now use the remote’s [Cursor ] keys to adjust the noise output from the Left (left-front) speaker; the test-noise will automatically move there and the “level offset” reading on the right will change by 0.5 dB increments. If you are using an SPL meter, adjust the Left output to produce a reading of 75 dB SPL C-weighted (or whatever other reference level you have chosen to adopt)

If you are balancing levels “by ear” you will have to choose one speaker—-usually the center—-as a reference and adjust each of the others so that is “ sounds as loud” as the reference.

Using the remote’s [Cursor ] and [Cursor ] keys, adjust each speaker in turn to produce the same SPL meter reading (or subjective loudness), within ±1 dB or better; the S170i’s ability to calibrate outputs by 0.5 dB steps should facilitate this precision.

NOTE THAT:

• All speakers must be in their final locations before level-setting.

•Your subwoofer (if any) should be set with its integral crossover defeated, or set to its highest-possible frequency.

• Due to the effects of room acoustics, matched-pair speakers (front; surround; back) will not always calibrate to exactly the same level offset readings.

• If you are particularly meticulous, you may wish to come back and re-check your level setup after completing the Delay setup routine (below).

DELAY SETUP

Your system’s channel-delay settings are a subtle but important refinement of your setup. By informing the S170i of the loudspeaker-to-listener dimensions of each speaker, it will automatically impose the correct delays for each channel, optimizing imaging, intelligibility, and surround-sound ambience. Enter your dimensions with precision within about 1 foot/30 cm.

CONFIGURING DELAYS

From the OSD Main menu, select the <Delay setup> item using the remote’s [Cursor ], and [Enter] keys. Using the [Cursor ] keys, set <Right> to the distance between your principal listening position and the front surface of the front-right loudspeaker.

Using the same remote keys, set the remaining speakers, each to the distances of your system layout. Where a particular speaker is not present in your system, “None” will be displayed and no distance setting will be possible.

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CONFIGURING THE S170i

SOURCE SETUP

The S170i is equipped with nine total inputs: six audio-video inputs (labeled on the rear panel VIDEO1-6), and 3 audio-only inputs (labeled CD, AUX, and TUNER). There is also an audio-only TAPE MONITOR loop. For each input position of the S170i, you may select a digital input to become active whenever that input is selected, and you may assign a 7-character name which will be displayed on the front-panel display and momentarily on the on-screen display whenever that input is selected.

CONFIGURING SOURCES

From the OSD Main menu, select the <Source setup> menu item using the remote’s [Cursor ], and [Enter] keys. Using the [Cursor ] keys, call up the source you wish to configure. Sources are numbered 1-9, which correspond in order to VIDEO1-6, CD, AUX, and TUNER on the rear panel (the TAPE MONITOR loop is not configurable, and will not appear in the rotation). Use the [Cursor] (down) key to move to the <Title> menu item, and press the [Enter] key. You may now edit the default title (“Video 1”, “CD,” etc.) to a more meaningful name, up to 7 characters. The [Cursor up/down] keys scroll through the complete list of available characters, while the [Cursor ] keys move left and right across the six characters (you may back up and change characters freely). When you are finished with the title, press [Enter] to return to the <Source setup> menu

Using the [Cursor] (down) key scroll down to the <Digital input> menu item. Use the [Cursor ] keys to assign a digital input to the current source. The digital inputs will appear in order: Coax1-4, OPT 1, and Opt 2, followed by Off. You would set a source’s <Digital input> to “Off” if you wished to ensure that that source would not play an incoming digital bitstream.

NOTE

You may freely assign any digital input to any source position, and you may assign a digital input to two or more source positions. For example, with your DVD/CD player connected to the COAX1 digital input, you might choose to assign COAX1 to both the “CD” and “VIDEO1” inputs, renaming VIDEO1 to “DVD.”

The following characters are available:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9 a b c d e f g h i j k l m n o p q r s t u v w x y z * - . / :

Using the [Cursor] (down) key scroll down to the <Component video> menu item. Use the [Cursor ] keys to set Component video to “On” or “Off.” When a source is set to Component video “On,” the video signal present at the S170i’s COMPONENT VIDEO IN (Y-Cb-Cr) jacks will be sent to its COMPONENT VIDEO OUT jacks whenever that input is selected.

• OSDs do not appear on the component-video output.

CONFIGURING THE S170i

TRIGGER SETUP

The S170i is equipped with 3 12-volt trigger outputs that may be used to turn on, activate, or otherwise control ancillary components or systems, such as power amplifiers, projector-lifts, lighting systems, and more. Their function could be as simple as powering up and down your NAD S250 power amplifier, or as complex as readying an entire home-theater room for use. For more technical information on the S170i’s 12-volt trigger outputs, see Appendix 1, or consult your installing NAD audio specialist.

Simple 12-Volt Trigger Configuration Example: Powering the NAD S250 Power Amplifier

The following example employs the S170i’s 12V Trigger #1 to turn the S250 amplifier on and off in concert with the preamplifier.

• Using the 12V Trigger cable supplied with the S170i connect the S170i’s rear panel 12V Triggers jack marked #1 to the 12V Trigger input jack on the power amplifier. Note that this custom cable provides an 1/8th-inch mini-plug on one end for the S170i, and a special, DC-style plug on the other to fit the S250 amplifier’s trigger input.

•From the OSD Main menu, select the <Trigger setup> item using the remote’s [Cursor ], and [Enter] keys. The <Trigger 1> listings should appear as follows (these are the defaults):

polarity Posit. delay No duration Infin.

If any other settings are in place, use the remote’s [Cursor ] and [Cursor ] keys to change them to the above conditions.

THX AUDIO SETUP

THX Surround EX creates a sixth, “center-back” channel intended for reproduction by one or more loudspeakers located behind the listening area. With recordings bearing the Dolby Surround EX mark, this delivers a specifically engineered center-back channel that is encoded into the left/right surround channels-precisely as the center channel was encoded into the left/right front channels in matrix-encoded Dolby Surround mixes. However, the THX Surround EX processing will often produce a useful center-back effect even from software that was not, originally, deliberately encoded for EX playback.

BASS LIMITER

The S170i incorporates a Bass Limiter that you can set to eliminate any chance of your subwoofer producing audible distortion. You will do this by auditioning a built-in test-noise signal the S170i sends to your subwoofer, and increasing the Bass Limiter’s “headroom” setting to the point of audible distortion. The Bass Limiter now prevents any program-material signals exceeding this level from being sent to the subwoofer.

CONFIGURING THE BASS LIMITER

From the <THX Audio setup> menu, use the remote’s [Cursor ] and [Enter] keys to select the <Bass limiter setup> item. Using the same keys, set <Bass limiter> to “On” and <Limiter noise> to “On”; you will hear a soft rumbling from your subwoofer. (If you do not hear sound from the sub, check your subwoofer audio and power connections, check Speaker Setup, below, and/or check the subwoofer’s own “hardware” control settings)

Now use the remote’s [Cursor ] keys to move to the <Limiter level> item, and [Cursor ] to decrease the limiter setting by 1 dB increments. As you do, the test-noise from the subwoofer will increase in level. Listen for the point at which audible distortions (harshening, “clacking,” “chuffing,” or other extraneous elements) become evident, then use [Cursor ] to return (increase) the limiter level by 1 or 2 dB until the distortion ceases. This establishes the “distortion-free” limit for your current subwoofer setup. It is advisable to return and re-check your Bass Limiter setup after you have completed the Level Setup routines (see below).

• Even after the Bass Limiter is set you may usefully engage its test-noise to “search and destroy” the room-rattles that are inevitably excited by high-level subwoofer output. (Window-treatments, electrical wall-plates, and hanging artwork are three common sources.)

• Should you ever change subwoofers, or reposition your current subwoofer or listening position, you should repeat the Bass Limiter setup routine.

•With a high-performance subwoofer, this routine can get rather loud. It is often best to await an opportune moment when spouses/children/pets are not at home to perform Bass Limiter setup fully.

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BOUNDARY GAIN COMPENSATION

This THX Ultra 2 feature compensates for the audio gain (level increase) when the subwoofer is placed against a wall or near a room corner.

NOTE

This feature is only applicable when using a THX Ultra 2 certified subwoofer for which the frequency response and sensitivity are part of the specification.

Select <THX Ultra2 Sub> using the remote’s [Cursor ] keys, then select <Yes> or <No> using the remote’s [Cursor ] keys. Then using the remote’s [Cursor ] keys select <Boundary gain comp.>, then select <On> or <Off> using the remote’s [Cursor ] keys.

NOTE

Boundary gain compensation can only be selected if the <THX Ultra2 Sub> menu item is selected to <Yes>.

ASA

This THX feature adjusts the gain and delay of the Back Surround speakers to compensate for their physical location in the listening room. Choose from three possible locations: together, close, or apart.

NOTE

You must have two (7.1) Back Surround speakers for this feature to work.

Select <Back speakers> using the remote’s [Cursor ] keys, then select <Together> or <Close> or <Apart> using the remote’s [Cursor ] keys.

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You may operate the S170i preamplifier equally from its front panel or via the HTR 2 remote controller. Since the remote will be the primary controller for most cases, we will focus on remote-controlled operations. Be sure to read the section, “Front Panel Operations,” below.

SELECTING SOURCES

From the HTR 2 select[AMP]; then use the numeric keys [1 - 10+] also labelled in the same color red as the [AMP] key for [DVD], [SAT], [VCR], VIDEO ], etc. to select directly those sources.

NOTE THAT:

• When an audio-only source is selected, the most recently-selected video signal remains selected, until another audio-video input is selected

• When you change sources, the OSD will, depending on the Display setup settings (above) momentarily show information about the new input. The level of detail depends on the setting of the <Temporary disp.> item: “Full” will show all information about the newly selected input’s audio, digital, and video signals; “Simple” will show only the new input name, and “Off” will prevent any display from appearing.

•A newly selected input’s listening mode (Stereo, EARS, Dolby Digital, etc.) will revert to the mode that was employed the last time that input was chosen, except that a multi-channel digital source (Dolby Digital or DTS) source will automatically switch to 5.1/6.1-channel surround, even if the input was last used in another mode such as Stereo or EARS.

• The Ext5.1 input participates in the S170i’s source “rotation” like any other audio-only source. However, since the Ext5.1 input is a “straight-through” source it does not receive bass-management, tone-control, or any other preamp functions; signals appearing at the rear panel’s EXTERNAL 5.1 INPUTS pass directly to the corresponding six of the PREAMP ANALOG 7.1 OUTPUTS jacks with no processing other than master-volume control. Bass-management and any other desired processing should be performed by the multichannel external source component.

There is an adjustable INPUT LEVEL CONTROL for the analog sources with an INPUT LEVEL METER to make adjustment easy and accurate. This circuit will automatically adjust the individual input to prevent overload of the A/D converter (converter of analog signals to digital, for surround processing) and does not require the user to make any adjustments. But you may want to adjust the input level manually so that each source plays at the same subjective loudness level. Since the automatic adjustment only looks at peak signals, sources with a wide dynamic range (classical music CDs) will sound subjectively softer than sources with a narrow or compressed dynamic range (rock music radio broadcasts).

To adjust INPUT LEVEL, first enter the OSD (On Screen Display) by pressing the RIGHT CURSOR KEY and scroll down to SOURCE SETUP with the DOWN ARROW KEY and press ENTER.

From the SOURCE SETUP MENU select ANALOG SENSITIVITY and use the RIGHT/LEFT CURSOR KEY to adjust the INPUT LEVEL. The range of adjustment is -5dB to +10dB. You can also select ANALOG MON to view a vertical bar graph display (with Peak Hold function) of input level. In this mode use the UP/DOWN CURSOR KEY to expand the meter scale from -20dB to 0dB, to -40dB to 0dB.

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ADJUSTING THE VOLUME

Use the HTR 2 remote’s <Volume up/down> keys to adjust the “master volume” of the S170i, raising or lower all channels together.

NOTE THAT:

•A momentary keypress will change the master volume by 1 dB increments; if you hold down <Volume up/down> the master-volume change will “run-on” until the key is released.

• The S170i’s OSD will show the volume setting as a line graphic relative to the reference level (the “+” mark on the line), with a numeric display above in dB relative to the reference level. (If the <Display setup> <Temporary disp.> item is set to “Off” the momentary volume indication will NOT appear.)

Since recordings vary considerably in overall average level, there is no imperative to listen at the reference level or any other particular setting. A setting of -20 may sound “as loud” from one CD as -10 does from another.

• If muting has been activated (below), increasing the master-volume via the HTR 2 remote’s [Volume up/down] keys or the front-panel knob automatically releases the mute function; decreasing volume retains muting.

• The S170i will power-up/return from Standby mode at whatever master volume setting was last used; however, if the prior setting was greater than -20 dB the S170i will power up to -20 dB. This prevents inadvertently beginning a session at excessive volume.

MUTING THE SOUND

Use the HTR 2 remote’s <Mute> key to silence all channels completely. Muting is always available, regardless of source or listening mode selections.

NOTE THAT:

• Cycling through Standby or powering off releases muting; the S170i will always power up or return from Standby with muting off.

• Changing input or listening-mode selections does not release muting.

• Increasing the master-volume via the HTR 2 remote’s [Volume up/down] keys or the front-panel knob automatically releases the mute function; decreasing volume retains muting.

SETTING LISTENING MODES ABOUT THE S170i’S LISTENING MODES

The S170i preamplifier offers seven distinct listening modes, tailored for different types of recordings or program material.

MONO

All output is directed to the center channel or left and right channels if there is no center channel present or selected; low frequencies are directed to the subwoofer if one is present in the Speaker setup

Mono mode is best selected for monaural recordings originally produced in single-channel format, including classic films and historic music recordings. It ensures a stable, clear monaural presentation with correct bass management.

STEREO

Stereo recordings, whether in PCM/digital or analog form and wither surround-encoded or not encoded, are reproduced as recorded; multichannel digital recordings (Dolby Digital and DTS) are reproduced via the left- and right-front channels only, as Lt/Rt (left/right-total or “Downmixed”) signals.

Select Stereo mode for listening to stereo recordings when you do not wish surround-sound to be in effect, or for multichannel recordings when only two-channel playback is possible (or desired).

DIRECT (DOLBY DIGITAL/DTS SOURCES ONLY)

Multichannel digital recordings (Dolby Digital or DTS) are reproduced via only the channels employed in the original recording. For example, a “5.1-channel” Dolby Digital 3/2/1 recording will reproduce via the front left-center-right, surround-left/right, and subwoofer speakers; a Dolby Digital 2/0/0 recording will reproduce via only the front-left and -right speakers (and he subwoofer if these were set to “Small” on the <Speaker setup> OSD menu.

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DOLBY EX, DTS ES, THX EX, SURROUND 6.1

Multichannel digital recordings (Dolby Digital or DTS) are reproduced via the full suite of front, surround, and one or two “back”-channel speakers (if selected in <Speaker Setup>). If Dolby Digital EX/DTS ES encoding is present in the original recording its logic is used to derive the back channels; otherwise, the S170i preamplifier derives a single back-channel signal from the left/right surround channels.

DOLBY PRO LOGIC

Surround-encoded recordings (and stereo recordings that are not encoded ) are reproduced with Pro Logic Dolby Surround decoding, with output to left, center-, and right-front channels and a single monaural surround signal sent to both surround-channel speakers; the surround channel’s response is rolled off above 7 kHz to discourage localization of surround-speaker locations in DPL mode).

Pro Logic mode is best reserved for surround-encoded recordings intended for Dolby Surround or compatible-system reproduction. These include most films on videotape and many on LaserDisc, television/cable programming produced for surround-sound, and most older LaserDiscs. Most DVD recordings, even those that do not exploit multichannel surround, include a Dolby Digital and/or DTS soundtrack in 1- or 2-channel modes; where available, this will usually deliver better performance. With rare exceptions, NAD’s proprietary EARS listening mode will produce superior results from stereo music recordings than will Pro Logic.

DOLBY PRO LOGIC II MOVIE

Similar to Dolby Pro Logic, this improved algorithm applies logic after the matrix decoding, rather than before as in Pro Logic, improving image stability and the precision of signal steering. Surround channels are also run full range.

DOLBY PRO LOGIC II MUSIC

Fine tuned for listening to music, in this mode the surround channels response is rolled off to simulate the acoustic absorption of a typical room. In addition, there are several adjustments that can be made to enhance the listening experience: PL II Panorama When selected the Panorama setting wraps the sound of the Front Left and Right speakers around you for an exciting effect. PL II Center Width Center Width allows you to gradually spread the Center channel sound into the Front Left and Right speakers. At the widest setting all the Center speaker sound is mixed to the Left and Right speakers. This control may help achieve a more spacious sound, or a better blend of the front image. PL II Dimension Dimension adjusts the front/back balance to taste.

DTS NEO:6 CINEMA

Surround-encoded recordings (and stereo recordings that are not encoded ) are reproduced with DTS Neo:6 Surround decoding, with output to left, center-, and right-front channels, and surround and surround back channels (if selected).

DTS NEO:6 MUSIC

This music surround mode can be used to create a convincing surround sound experience using front, center, and all selected surround speakers from any 2 channel stereo source. Neo:6 allows the user to adjust the Center Image in six steps. Center Image allows you to gradually spread the Center channel sound into the Front Left and Right speakers.

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EARS

Stereo recordings (and surround-encoded stereo recordings), whether in PCM/digital or analog form, are reproduced with proprietary NAD surround processing with output to left, center-, and right-front channels and both surround-channel speakers. EARS extracts the natural ambience present in nearly all well-produced stereo recordings. It does not synthesize any ambience or other sonic elements and thus remains far truer to the sound of the original musical performance than most other music-surround options.

Select EARS for listening to stereo music recordings and broadcasts. EARS produces a subtle but highly natural and believable ambience from nearly all “natural-acoustic” stereo recordings; typically, these include classical, jazz, and folk genres as well as numerous examples from others. It’s virtues include a realistic, stable “front-stage” sonic imaging and spacious but unexaggerated ambient “virtual acoustics” that remain faithful to the original recording.

NOTE

When listening to FM broadcasts, “multi-path distortion” may be more clearly revealed by the EARS circuit. This can be used to advantage in optimally orienting an FM antenna for a given FM station.

EARS cannot be applied to multichannel digital recordings (Dolby Digital/DTS); these recordings carry their own surround and ambience in their multichannel nature. However, EARS may be applied to these recordings when they are played back via the analog stereo outputs of a DVD or other player, or when the DVD or other recording’s soundtrack selection is set to “stereo/PCM” rather than “5.1” or equivalent.

ANALOG BYPASS

Stereo or monaural recordings from any S170i source’s analog input jacks are routed directly to the leftright-front outputs with no processing whatsoever.

Use Analog Bypass to reproduce minimal-signal-path “audiophile” conditions for critical listening of twochannel (or monaural) sources.

No bass management is performed in Analog Bypass mode, so signals are reproduced by the left- and right-front channels “full-range,” regardless of the settings entered on the S170i’s Speaker setup page.

The table below indicates which listening modes are available with the three possible types of signal sources: digital-input 2-channel (whether the actual signal is monaural, stereo or surround-encoded); analog-input 2-channel (mono, stereo or surround-encoded), or digital-multichannel (Dolby Digital or DTS). Where a listening mode is not available to a given signal source, it will not appear in the <Mode> selection rotation.

2-ch. PCM 2-ch. analog Multi-ch. (DD/DTS)

Mono Mono Mono Stereo Stereo Stereo Pro Logic Dolby Pro Logic Direct EARS EARS Surround 6.1* —- Analog Bypass —-

*If setup with “Back” speaker(s)

SELECTING LISTENING MODES NOTE THAT:

•You must re-key [Mode ] if a few seconds pass since your last use of the [Cursor ] to change listening modes

• Neither changing the selected input, cycling the S170i through Standby or powering down, nor engaging mute will change the selected listening mode.

• Changing the type of signal will change the listening mode if the new signal is a digital-multichannel recording, or is incompatible with the selected mode. For example: After listening to a CD played on a DVD/CD player via the EARS listening mode, you remove the CD and replace with a 5.1-channel multichannel DTS CD recording. The S170i will automatically engage DTS/5.1 playback.

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ADJUSTING CHANNEL LEVELS

You may make temporary changes to the relative levels of center, surround, and subwoofer outputs without abandoning the permanent levels calibrated from the OSD’s Level setup item. This may prove useful in a number of circumstances, for example: to increase (or tone down) a film’s dialog clarity by raising (lowering) the center channel; to enhance (or inhibit) subjective ambience from a music recording reproduced via EARS by raising (lowering) the surround-channels level; to mitigate excessive deep bass (or enhance deep bass) by lowering (raising) the subwoofer level.

CHANGING CHANNEL LEVELS

From the HTR 2 remote Use the three vertically paired up/down key-pairs, [Surr.]], [Center], and [Sub] to adjustSurround, Center-channel, or Subwoofer -channels relative levels; the changing levels will be displayed on the OSD and the front-panel readout.

NOTE THAT:

• Level settings are added to the setup levels established on the S170i preamp’s <Levels setup> OSD menu (above). For example: If your <Level setup> establishes <Center> at “-3 dB” and you manipulate [Center up/down] level to +2 dB, the net overall effect will be a center-channel level of -1 dB.

• Changes made on the [LEVELS] page are canceled by cycling the S170i through its Standby mode.

• If a Preset was is in force (previously selected), the levels from which [LEVELS] page’s three controls “start” will reflect any levels stored by the preset. (See Configuring Presets, above.)

• The [LEVELS] page will show and permit adjustment of a channel that is not present in the <Speaker setup> OSD menu. For example: Even if you have set <Center> to “No” on the <Speaker setup> OSD menu, the [Center up/down] keys will appear on the [LEVELS] page; they will have no effect, even upon the “phantom center channel” when listening in any of the surround modes.

• If one or two surround-back channels are configured as present in the <Speaker setup> OSD menu, their levels will be raised and lowered by the [LEVELS] page’s [Surr up/down] keys in lockstep with the surround channels.

ABOUT THE THX MODE

In addition to certifying very high fundamental multichannel audio performance from components awarded the THX/Ultra logo, THX Ltd’s Home THX program also mandates that Ultra components include the THX mode. This incorporates three fundamental surround-audio enhancements:

• Re-equalization contours high frequencies from the front channels to better match the tonal balance of the original film soundtrack as reproduced on the “dubbing stage” on which the director and sound-mixers auditioned the film during its production.

•Timbre-matching compensates for the lateral/rearward placement of surround loudspeakers in a correctly deployed surround home theater system, achieving a more consistent tonal characteristic from sounds originating from any point around the audience positions.

• Decorrelation mitigates the monaural surround channel delivered by all Pro Logic recordings (and some Dolby Digital and DTS sources), yielding more spacious, natural reproduction of a film’s ambience and “virtual acoustics.”

ENGAGING THX

From the the HTR 2 remote, press the [AMP] key first, then press the [THX ] key; THX surround will be engaged. Subsequent presses of the [THX ] key will “toggle” between standard-THX and THX Surround EX modes (if available) then back to non-THX mode.Note that:

• THX modes are only available to digital-input sources: Dolby Digital; DTS; PCM

• For PCM sources, the Dolby Pro Logic listening mode must previously have been engaged.

• “Incompatible Source” will appear on the OSD and front-panel readout when THX is invoked for an analog source, when Pro Logic is not the current listening mode, or when THX Surround EX is invoked for a PCM source or a Dolby Digital or DTS non-discrete-surround source (2/0/0, 2/1/0, 3/1/1, etc.).

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ADJUSTING THE TONE CONTROLS

Press the [ Tone] key; "Treble" appears on the OSD and the front-panel readout. Use the remote's [Cursor Left/Right] to boost or cut treble by 1 dB increments. Press [ Tone] again to adjust bass, similarly using the [Cursor Left/Right] keys; "Bass" appears on the OSD and readout. Press [ Tone] again to exit the tonecontrol function.

FRONT PANEL TONE BUTTON: Press to toggle between Bass, Treble, and TONE ON. The VOLUME knob is used to adjust the Bass and Treble levels.

NOTE THAT:

• Bass/treble settings affect only the front channels (left, center, and right), and are active in all listening modes

• Bass/treble settings imposed via the HTR 2 remote's [ Tone] will override those stored on the <Audio setup> menu, but they are temporary: Cycling through the S170i's Standby mode (or recalling the <Audio setup> menu), or recalling a Preset, will override them and revert to the settings selected by <Audio setup> or the recalled Preset.

USING PRESETS

From the HTR 2 select [AV Preset]; then press the [ 1] through [ 5] numerical key to select the desired Preset.

NOTE THAT:

• The selected Preset remains in force until you select a different Preset, or cycle the S170i through its Standby mode.

•A Preset applies regardless of what source is selected, or what listening mode is in operation.

• Cycling the S170i through its Standby mode cancels any selected Preset, reverting both tone and all level settings to those set on the HTR 2 remote’s LEVELS or MODE/MULTI.S screens, or the S170i preamp’s <Audio setup> OSD menu (above).

•A Preset’s channel levels are added to the setup levels established on the S170i preamp’s <Levels setup> OSD menu; a Preset’s tone-control settings override those established on the <Audio setup> OSD menu (or the MODE/MULTI.S remote page) entirely.

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FRONT PANEL OPERATIONS

It is possible to perform every function directly from the S170i Preamplifier’s front panel, without the HTR 2 remote controller.

•To change input sources or listening modes, press AUDIO or Video or MODE; the VOLUME (SETUP) knob will now cycle, bi-directionally, through all audio-video or audio-only sources, or listening modes. The source or mode names appear on the OSD as well as the front-panel readout. After five seconds of inactivity, the display and the knob will return to their normal functions.

•Press TAPE MONITOR to hear the component or signal connected to the rear-panel TAPE MONITOR IN/OUT jacks; press Tape MONITOR again to bypass the tape monitor loop. <Tape Monitor On> and <Tape Monitor Off> appears on the OSD.

•To adjust the treble, press TONE once and use the VOLUME (SETUP) knob to raise or lower the setting; press TONE a second time to adjust bass; the new tone settings appear on both the OSD and the frontpanel readout. Press TONE a third time to return the readout and VOLUME (SETUP) knob to their normal functions.

•Press BRIGHTNESS once to dim the front-panel readout, press the key again to return the readout to its normal brightness.

• The SPEAKERS key accesses the same functions as the <Speaker setup> OSD menu (see Speaker Setup, above). The OSD will not appear, but the necessary information will display on the front-panel readout. Each subsequent press of SPEAKERS moves through Main, Center, Surround, Back, and Subwoofer options; while any is selected the VOLUME (SETUP) knob cycles bi-directionally through the available options, such as “No/Small/Large” for the Center position. Press the SPEAKERS key one more time (beyond Subwoofer) to return the readout and knob to their normal functions.

• The DELAY key works similarly, adjusting channel-delays for each channel present. See the paragraph directly above.

• The LEVELS key works similarly, adjusting channel-levels for each channel present. See the paragraphs directly above.

•You can adjust the remote room’s audio using the MULTISOURCE key. Press MULTISOURCE once to adjust remote-room volume using the VOLUME (SETUP) knob; press MULTISOURCE a second time to cycle the source sent to the REMOTE ROOM rear-panel jacks through the audio-only sources using the VOLUME (SETUP) knob, bi-directionally. Press MULTISOURCE a third time to return the readout and knob to their normal functions; the normal functions will also return automatically after five seconds of inactivity.

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LISTENING IN A REMOTE ZONE (MULTISOURCE)

The S170i can provide stereo, line-level signals to a second room or zone via its rear-panel MULTISOURCE OUT jacks. These jacks may output a source completely independent from (or the same as) the one currently selected at the S170i’s main output jacks, and they enjoy entirely independent volume control. The remote room or zone enjoys independent remote control of signal source and volume, even if the S170i is being operated simultaneously from the primary listening room/ home theater.

NOTE THAT:

This is a line level output, requiring a power amplifier to be attached between the MultiSource output and the loudspeakers in the remote zone.

SELECTING THE MULTISOURCE

From the ZR 2 remote control, select the desired source input. Or from the front panel: Press the MULTISOURCE key twice; the front-panel readout’s top line will show “Zone: CD” (for example). Then use the VOLUME (SETUP) knob to cycle, bi-directionally, through all nine audio-video or audio-only sources available to the MULTISOURCE OUT jacks; source names appear on the front-panel readout. After five seconds of inactivity, the display and the knob will return to their normal functions.

CONTROLLING MULTISOURCE VOLUME

From the ZR 2 remote, use the [Volume up/down] keys to adjust the volume. Or from the front panel: Press the MULTISOURCE key once; the Then use the VOLUME (SETUP) to adjust the volume. The frontpanel readout’s bottom line will show “Z.v: -40” (for example) to indicate the volume setting. After five seconds of inactivity, the display and the knob will return to their normal functions.

NOTE THAT:

• The EXT5.1 input is not available to the MULTISOURCE OUT jacks.

•A source may be available to the S170i’s main and MultiSource outputs simultaneously

• Signals at the MULTISOURCE OUT jacks are always in stereo mode, regardless of the listening mode selected, even for the same source, for the main outputs

• MultiSource commands and functions do not appear on the OSD.

• It is possible to use the composite-video MON OUT jack to send video to the MultiSource remote room for casual viewing and OSDs, though over long runs a certain amount of video loss must be expected. It is not recommended to use the S-Video monitor output over such long runs.

NAD LINK

NAD Link OUT allows remote control commands to be relayed from the S170i Preamp/Processor to other products equipped with an NAD Link (or compatible) input. It transmits the IR (infra red ) control codes the S170i receives from the HTR 2 remote handset via the front panel IR sensor. The NAD Link creates a “hard wired” connection to another NAD component. The cable format is a standard coaxial cable terminated with RCA Jacks.

This also allows the S170i to receive external control commands from a multi-room controller or remote relay system (or from the NAD Link OUT jack on another NAD product). Commands received will control the S170i and also be relayed to the NAD Link OUT jack. This can be very helpful if you are using the MultiSource feature with a “hard wired” keypad or IR repeater system (such as Xantech, Russound, Niles, etc.) allowing you to control an NAD Link equipped FM Tuner or CD Player, as well as the S170i from the remote location. By “daisy chaining” the NAD Link OUT from one component to the NAD Link IN on another component the signal can be passed along to each component.

NOTE THAT:

If a component receives the same command simultaneously from the front panel IR sensor AND the NAD Link INPUT the microprocessor control system may not recognize the command, resulting in the command being ignored. To prevent this, do not link components that receive the same IR remote command at the same time (as would be the case if two components are placed very close together).

USING THE S170i

SYSTEM INTEGRATION (RS-232)

The S170i’s RS-232 port offers extensive integration to sophisticated media-system and home-automation control, and permits full control of all of the S170i’s features. Using this port, the S170i can be connected to any other device with an RS-232 port, such as a personal computer or a home automation system. Any command or function that can be issued from the front panel or the HTR 2 remote controller can be performed via the RS-232 port, and information feedback of the S170i’s current settings, including MultiSource status, is transmitted from the preamp’s RS-232 port to the connected PC or device. The S170i’s MultiSource features are thus also fully controllable via RS-232 command.

TECHNICAL DETAILS

The RS-232 port uses the following standard pin-out arrangement:

DB-9 Pin # Function

2Transmit Data 3 Receive Data 5 Signal Ground

NOTE THAT:

•A standard, “straight-through” serial cable (not a null modem cable) must be employed to connect the S170i to a PC or other serial device.

• S170i serial communications must employ 8 data bits, no parity, and 1 stop bit; the data rate is 12000 bps (baud). (Some serial devices are unable to communicate at 12000 bps; a bit-rate converter to convert S170i communications to 9600 bps is available as a separate accessory; contact your installing NAD audio specialist.

A Windows 95/98/ME-compatible application for serial control of the S170i from a PC, as well as complete details of the S170i’s serial-communications protocols, are available for download from the NAD website:

HTTP://WWW.NADELECTRONICS.COM

See your NAD installing specialist for more information.

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