Classe Audio SSP-25 Owners manual

Classé Audio, Inc.

SSP-25

Preamplifier/Surround Sound Processor

SSP-25

Owner’s Manual

Safety Information

1) To prevent fire or shock hazard, do not expose the SSP-25 to water or moisture.

2) Do not place the SSP-25 close to any heat-producing device such as a radiator, stove, etc..

3) Connect the SSP-25 only to an AC source of the proper voltage. The shipping container and the rear panel serial number tag will stipulate the proper voltage. Use of any other voltage will almost certainly damage the unit and will void the warranty.

4) Do not open the SSP-25 for any reason, as there are no user serviceable parts inside. An open unit, particularly if it is still connected to an AC source, presents a potentially lethal shock hazard. Refer all questions to authorized service personnel only.

5) If the SSP-25 will be out of use for an extend period of time (vacation, etc.), unplug the power cord from the AC source to prevent any chance of problems from a voltage surge.

CE Notice

All of us at Classé take extreme care to insure that your purchase will become a prized investment. We are proud to inform you all Classé Audio components have been officially approved for the European Community (CE) mark under CE Certificate Number C401CLA1.MGS granted on 18 July, 1996.

This means that your Classé product was subjected to the most rigorous manufacturing and safety tests in the world. The CE mark certifies that your purchase meets or exceeds all European Community requirements for unit-to-unit consistency and consumer safety.

The SSP-25 is manufactured under license from Dolby Laboratories Licensing Corporation. It is additionally licensed under one or more of the following patents: U.S. number 3,959,950, Canadian numbers 1,004,603 and 1,037,877.

Additionally, the SSP-25 is manufactured under license from Digital Theater Systems, Inc. Dolby® Pro Logic®, and Dolby Digital® are registered trademarks of Dolby Laboratories Licensing Corporation. DTS® is a registered trademark of Digital Theater Systems, Inc.

Introduction

Safety Information Page 2 CE Notice Page 2 Thank You Page 5 Classé Design Philosophy Page 5 About This Manual Page 6

Section 1: Diagrams Page 7

1.1 Front Panel Page 7

1.2 Rear Panel Page 10

1.3 Remote Control Page 13

Section 2: Installation Overview Page 17

2.1 System Hookup: Rear Panel Connections Page 17

2.1.1 To Power Amplifier(s) Page 17

2.1.2 Audio Source Components Page 17

2.1.3 Video Source Components Page 19

2.1.4 Remote Room Setup Page 20

2.2 System Configuration Page 21

2.2.1 The MENU System Page 21

2.2.2 Configuration Procedures Page 22

Section 3: Getting Started Page 24

3.1 Unpacking the SSP-25 Page 24

3.2 Optimal Placement Page 24

Section 4: System Hookup Page 25

4.1 Introduction Page 25

4.2 To Power Amplifier(s) Page 25

4.3 Source Components Page 27

4.3.1 Audio Considerations Page 27

4.3.2 Video Considerations Page 29

4.3.3 Patience Is A Virtue! Page 29

Section 5: Initial System Configuration Page 30

5.1 Introduction Page 30

5.1.1. What You’ll Need Page 30

5.1.2 The MENU Tree Page 30 and 31

5.2 Navigation: The First Steps Page 32

5.2.1 General Information Page 32

5.2.2 Activating the MENU System Page 32

5.3 MODE CONFIGURATION Page 34

5.3.1 Mode Overview Page 34

5.3.2 Input Type Page 34

5.3.3 Input Type setup Page 34

5.3.4 Compression Page 35

5.3.5 Back to normal operation Page 35

5.4 Audio Configuration (Speaker Setup) Page 36

5.4.1 Source Adjustments Overview Page 36

5.4.2 Source Setup Page 36

5.4.3 Mode Page 37

5.4.4 Input page 37

5.4.5 Input Level Page 38

5.4.6 Analog Input Level page 39

5.4.7 Analog Input Level Setup page 40

5.5 Audio Configuration and Delay Page 42

5.5.1 Speaker Description, Size and number Page 42

5.5.1.1 Main Speakers Page 42

5.5.1.2 Center Speaker page 43

5.5.1.3 Surround Speakers Page 43

5.5.1.4 Subwoofer Page 43

5.5.2 Delay Setup Page 44 Delay Setup Worksheet Page 45

5.5.3 Balance Setup Page 46

5.5.4 Subwoofer Limit Page 47

5.6 Feature Setup Page 49

5.6.1 Noise Generator Page 49

5.6.2 Language Page 49

5.6.3 Factory Reset Page 50

5.6.4 Software Version Page 50

Section 6: Balance Trim Page 51 Section 7: Operating the SSP-25 Page 52

7.1 Introduction Page 52

7.2 The Information Display Page 52

7.2.1 Master Level Indicator

7.2.2 REF, OVER, and CLIP indicators

7.3 Mode Selection Page 53

7.3.1 Introduction

7.3.2 DTS

7.3.3 Stereo Surround

7.3.4 Stereo

7.3.5 Mono Front

7.3.6 Mono Center

7.3.7 Dolby Digital

7.3.8 Dolby Pro Logic

7.4 Changing Individual Channel Levels Page 54

7.4.1 Introduction

7.4.2 On-the-Fly Techniques

7.5 First Aid Page 55

Thank You From Everyone At Classé

Thank you for purchasing the Classé Audio SSP-25 Preamplifier/Surround Sound Processor.

We take great pride in offering components that combine exceptional sonic performance and long-term reliability. To do that, we have invested in extraordinary design and manufacturing facilities. We trust that you will enjoy your purchase for many years to come.

Classé Design Philosophy

All of our components benefit from the same rigorous design philosophy. The goal is simple: All Classé products must reproduce music with the harmonic and spatial integrity typical of fine instruments heard in a live, unamplified performance.

Single Circuit Design

To this end, we make extensive use of carefully optimized versions of the same basic circuit precisely matched to specific power requirements. This means that all Classé line level components and power amplifiers benefit from years of refinement. However, our efforts do not stop here.

Listening: The Critical Design Element

Once we determine general circuit values for a particular application, we listen carefully while exchanging and mixing different parts (transistors, capacitors, wiring, PC boards, etc.) and adjusting specific operating voltages within proper engineering ranges.

Extended Real-World Lifespan

Every Classé component, even the most affordable, benefits from this painstaking approach. The result is an optimum balance between the often-conflicting demands of exceptional performance and long-term reliability. Our most expensive components gain from even tighter tolerance parts and highly segmented and exceptionally robust power supplies with large reserve-current capabilities.

Our Pride in Manufacturing. Your Pride in Ownership.

We build all of our components to the highest possible standard. From glass-epoxy circuit boards to the massive 3/8” thick faceplates, every Classé product is a tribute to both the art and science of sound reproduction. We hope that you derive as much pleasure and satisfaction in using your Classé as we did in producing it.

About This Manual

The Classé SSP-25 is a very sophisticated preamplifier/processor. Even so, although complete understanding of the SSP-25’s many capabilities may take some study, its elegant design and intuitive interface invites daily use by even the technically challenged.

We strongly urge you to read this Manual carefully before you connect and use the SSP-25 in your home theater system. You’ll find answers to almost all of your questions in these pages. That knowledge will greatly reduce your efforts as you configure your system to take best advantage of the SSP-25’s enormous potential.

We’ve organized the Manual for both the experienced installer and the novice user. The Installation Overview (Section 2) is written for those with technical experience. It provides

an inclusive picture of the SSP-25’s capabilities and suggests several effective system configuration strategies.

The following Sections supply step-by-step instructions to help the less technical user configure and use the SSP-25 effectively.

As in all such efforts, a little patience will go a long way to reducing the chances for frustration. Remember, it took many talented people a long time to design the SSP-25 and you can’t be expected to learn everything about it in one evening!

So relax. And enjoy. You’re about to enter a wonderful world of high-performance surround sound.

Section 1: Diagrams

Use the pictures in this section as your guide to the SSP-25. They show the locations of all controls, inputs, outputs, remote keys -- in short, everything you need to know about your new preamplifier/surround sound processor. Read the notes under each diagram carefully. Y ou’ll find capsule explanations of all important features. Once you read them, you’ll understand most of the SSP-25’s capabilities.

1.1 Front Panel

1) VIDEO < & >

These pushbuttons select an audio/video source by stepping from AV1 through AV4 (Video >) or from AV 4 back through AV1 (< Video).

These buttons “wrap” to the next input. For example, if you are enjoying the AV4 input, pressing “Video >“ will step to AV1. Conversely, pressing “< Video“ while using AV1 will select AV4.

If you press either the “< Video“ or “Video >“ button while listening to an audio-only input, the SSP-25 will deselect the audio-only input and select the previous or next AV input from the one last used.

(See *NOTE

2) AUDIO < & >

These pushbuttons work the same way as the Video < & > buttons described above. However, they select an audio-only source. They “wrap” from AUD1 to AUD3 (< Audio) and from AUD3 to AUD1 (Audio >), though you will notice that pressing the < or > button when the selected input is AUD3 or AUD1 deselects the AUDIO ONLY inputs.

*NOTE inactive.

*NOTE you may press a <VIDEO or VIDEO> button to move to the previous or next AV input. The currently active AUDIO ONLY input LED will extinguish and the selected AV input will be active. You may also press the <AUDIO or AUDIO> button once, twice or three times until the AUDIO ONLY LEDs are no longer lit. Each time you press the < or > button the previous or next input is selected, unless AUD3 or AUD1 is selected. Pressing the < button when AUD1 is selected or the > when AUD3 is selected, causes the AUDIO ONLY inputs to be deselected and the currently lit AV input to become active again.

s below in “2) AUDIO< & >”)

: When selecting an audio only input the last used AV input LED remains lit, though the AV input is

: When you wish to return to listening to and watching an AV input after listening to an audio-only input

3) AUDIO and VIDEO SOURCE LED INDICATORS

4) STANDBY (“On/Off”) BUTTON

5) STANDBY (“On/Off”) LED INDICATOR

6) INFORMATION DISPLAY

SSP-25 Front Panel

These red LEDs show the active input. The Input LED will glow red when that input is directed to the Main outputs. The selected input is always directed to both the Main and the Record outputs. (See Sections 2.2 and 6.7 for further details.)

Although this pushbutton seems to be a normal “On/Off” control, it is actually more sophisticated. When the SSP-25 is plugged into a live AC outlet and the rear-panel power switch is in the “On” position, this pushbutton activates all of the SSP-25’s audio and video circuitry and displays. The next push turns off all circuits except for basic elements such as the central microprocessor and remote control sensors.

This LED glows green when the SSP-25 is in Standby or “Off” mode. It does not glow at all when the SSP-25 is fully activated.

*NOTE LED is briefly lit. The information display also lights with a “Classé SSP-25” readout. As soon as the circuitry becomes active the MUTE LED goes out, the red LED(s) in AUDIO and/or VIDEO light, and the display changes to briefly identify the active input. The display changes immediately to continuously identify the type of signal (analog, digital) in the top line and the decoding method in the lower line.

The two lines of information displayed, and the lit LEDs on the SSP-25 combine to provide a comprehensive view of its current operating parameters. All set-up procedures are also performed utilizing the panel display. The first line functions as a headline, displaying selected input, type of input signal, or lack of signal, while the second line displays mode, output level, balance, and so forth.

: When the button is pushed to activate the SSP-25 the standby LED goes out and the green MUTE

On the left side of the display window are printed CLIP, OVER, REF, and THX. Clip, Over and Ref are used as indicators when setting the proper input levels of the left channel of the analog audio inputs. Their use is explained in section 5.4.6. THX lights as a notifier when THX playback is selected as a decode mode.

On the right side of the display window are printed CLIP, OVER, REF, and COMP. Clip, Over and Ref are used as indicators when setting the proper input levels of the right channel of the analog audio inputs. Their use is explained in section 5.4.6. COMP lights when Compression, better known as “night mode” is selected, as explained on page 15.

SSP-25 Front Panel

7) MODE BUTTONS < & >

These buttons step back and forth through the SSP-25’s operating modes in the following sequence: DTS® Cinema, DTS® Music, Analog Bypass, Mono (Center), Stereo, Stereo Surround, Dolby Pro Logic®, Dolby Digital® (AC3). Utilizing the two buttons you can quickly arrive at the mode you desire.

8) MUTE BUTTON

This button fully mutes the SSP-25’s main outputs. A second push restores the previously selected operating levels. Record output is unaffected. The Mute button provides a convenient way to lower the volume when answering the telephone.

*NOTE mute mode will not remove muting, but when muting is removed the new lower volume level will be present. Muting can be removed either with the mute button or by turning up the volume slightly.

9) MUTE LED INDICATOR This LED glows green when the SSP-25 is in the mute mode.

10) MASTER LEVEL CONTROL

This large knob changes the relative levels of all active main room channels simultaneously. Each loudspeaker’s relative loudness stays in perfect balance with all other speakers as programmed during setup. The Main Information Display shows the master level setting in numbers from “Volume: -80” (virtually no output) to “Volume! +35” (maximum output).

: Turning the volume up with the volume knob will remove muting, but turning down the volume while in

1.2 Rear Panel

1) ANALOG AUDIO INPUTS (See *NOTE 1

a) AUD1 (Line level, balanced: XLR x 2 OR line level, single ended: RCA x 2) (PIN 2 = HOT) b) AUD2 (Line level, single ended: RCA x 2) c) AUD3 (Line level, single ended: RCA x 2) e) AV1 (Line level, single ended: RCA x 2) f) AV2 (Line level, single ended: RCA x 2) g) AV3 (Line level, single ended: RCA x 2) h) AV4 (Line level, single ended: RCA x 2)

These analog audio inputs accept a line level signal from any component equipped with the appropriate output circuitry. With the partial exception of “a) AUD1,” the balanced input requires three-pin XLR connectors (Pin 2 = Hot), all analog audio inputs are single ended circuits with RCA-style terminations. The SSP-25 has no internal provisions for MM or MC phono amplification/RIAA equalization but accepts line level outputs from a wide variety of external step-up devices if desired.

2) DIGITAL AUDIO INPUTS (See *NOTE 1

a) AUD1 (multi-format S/PDIF: RCA x 1) b) AUD2 (multi-format S/PDIF: RCA x 1) c) AUD3 (multi-format S/PDIF: RCA x 1) d) AV1 (multi-format S/PDIF: RCA x 1) e) AV2 (multi-format S/PDIF: RCA x 1) f) AV3 (Multi-format S/PDIF: RCA x 1)

g) AV4 (multi-format S/PDIF: Toslink x 1 OR Multi-format S/PDIF RCA x 1) h) AV4 AC3 (Multi-format S/PDIF: RCA x 1) USED TO PLAY AC3 ENCODED LASER DISKS

Except partially for “g) AV4,” these digital audio inputs accept standard S/PDIF digital signals via 75 ohm coaxial cables with RCA-style connectors. The AV4 input also uses a Toslink-style optical connector for digital source components with this type of digital output. AV4 is designed to be used with the optical digital output of many laser disc players and/or DVD players.

3) VIDEO INPUTS

a) AV1 (Composite: RCA x 1) b) AV2 (Composite: RCA x 1) c) AV3 (Composite: RCA x 1) d) AV4 (Composite: RCA x 1) e) AV1 (S-Video: mini-DIN x 1) f) AV2 (S-Video: mini-DIN x 1) g) AV3 (S-Video: mini-DIN x 1) h) AV4 (S-Video: mini-DIN x 1)

These inputs accept video signals from various video source components. Inputs a) through d) accept a composite video signal while inputs e) through h) accept S-Video (Y/C) signals.

below: Page 13)

ONLY

4) VIDEO OUTPUTS a) Main (Composite: RCA x 1) b) Record (Composite: RCA x 1) c) Main (S-Video: mini-DIN x 1) d) Record (S-Video: mini-DIN x 1)

5) MAIN AUDIO OUTPUTS (Preamplifier outputs)

a) Multi-channel (L, C, R, LS, RS, & Sub line level, unbalanced: DB25 x 1) b) Front (L & R line level, balanced: XLR x 2) c) Multi-channel (L, C, R, LS, RS, & Sub line level, unbalanced: RCA x 6)

6) SECONDARY AUDIO OUTPUT

a) Record (L & R line level, unbalanced: RCA x 2)

SSP-25 Rear Panel

These video outputs direct video signals from various source components to selected destinations. The Main (Composite) video outputs transfer a chosen source’s video signal and on-screen display

information to any monitor or TV set with a composite input. The Main (S-Video) output duplicates this function for all components using the S-Video (Y/C) signal path.

The Record (Composite) video output directs the chosen source’s video signal to a video recording device. No on-screen information appears at this output. The Record (S-Video) output duplicates this function for all components using the S-Video (Y/C) signal path.

These outputs allow you to easily connect the SSP-25 to any power amplifier designed for consumer use. The multi-channel DB25 output provides a convenient single-cable connection to multi-channel power

amplifiers and also insures channel-to-channel continuity between preamp/processor and power amplifier. The front Left and Right XLR outputs provide balanced (Pin 2 = Hot) connections from the SSP-25 to power

amplifiers with balanced inputs. They are ideal for mixed use (music and movies) systems where the finest audio reproduction is a prime goal.

The individual RCA outputs provide a convenient signal path to almost all power amplifiers. You may use any of these connections in any combination that does not duplicate channel assignments. For

example, you may use the Front Left and Right channel balanced XLR outputs to connect the SSP-25 to the power amplifier(s) for those speakers and either the RCA connectors or the DB25 connector for all other channels. Similarly, you can use the DB25 output for five channels and the RCA Sub output for the subwoofer if needed.

The Record outputs allow easy connection to a VCR or any other recording device or the line level analog output may be sent to a remote location. (Utilization of a patch bay or switch box would allow multiple use distribution. The same source selected for the main output appears at the record output).

7) IR (Inf rared) REMOTE CONNECTORS a) Main In (Xantech compatible: 3.5" mini-jack x 1) b) Main Out (Xantech compatible: 3.5" mini-jack x 1)

8) MISCELLANEOUS

a) AC power switch b) AC power cord receptacle

*NOTE 1 and AC3, as well as the difference between digital and analog. This means that though there only three audio-only inputs you can have as many as six sources plugged in, if three are digital and three are analog. (AUD1 must utilize an XLR connector). Please also note AV4 has three digital audio inputs and all three may be used. AV4 AC3 for an output from a laser player playing Dolby Digital encoded disks. The second digital RCA input can be used for input from the same Laser player when playing DTS or Dolby Pro Logic encoded disks. The Toslink input could be used for connecting a DVD player, and the processor will recognize and play correctly the digital input from DTS, or Dolby Digital (AC3) DVDs or any CD. (See further notes in set up sections).

SSP-25 Rear Panel

The Main In jack allows connection of an external IR sensor that functionally replaces the SSP-25’s front panel IR sensor. It is particularly useful in installations where the SSP-25 is placed in a closet or behind the doors of an equipment cabinet where the front panel IR sensor would be blocked from receiving signals from the hand held remote controller.

The Main Out jack transfers IR commands received from either the SSP-25’s front panel IR sensor or an external sensor connected to the IR Main In jack to a remote IR repeater. This jack allows a wide variety of source components to receive commands via their own built-in IR sensors.

The AC power switch positively disconnects the SSP-25 from all AC power when it is in the OFF position, even if the AC cord is connected to a live AC outlet. In the ON position, the SSP-25’s basic circuits (central microprocessor and remote sensors) are always active (“Standby” mode) providing, of course, that the AC cord is plugged into a live current source.

The AC power cord receptacle is the standard IEC-type used for test equipment, computers, and high quality audio/video components. It accepts a wide variety of detachable AC power cords.

: The SSP-25 is able to recognize the character of input signals. It is able to differentiate between DTS

1.3 Remote Control

1) DISPLAY

This button changes the intensity of the front panel information display by turning off the readout. The display panel itself remains lit.

2) STANDBY

This button duplicates the function of the STANDBY button described in FRONT PANEL (#4) above. While in standby mode the SSP-25 will only respond to the standby button.

3) THX

The THX button turns on or off THX effects. Playback of laser disks or DVDs that have been formatted for THX playback will benefit from this added processing.

4) MODE BUTTONS < & >

These buttons are functionally identical to those on the front panel. They step back and forth through the SSP-25’s operating modes in the following sequence: DTS® Cinema, DTS® Music, Analog Bypass, Mono (Center), Stereo, Stereo Surround, Dolby Pro Logic®, Dolby Digital® (AC3). Utilizing the two buttons you can quickly arrive at the mode you desire. SEE APPENDIX FOR AN EXPLANATION OF THE VARIOUS MODES.

5) AUTO

The “AUTO” button is used to cause the SSP-25 to test the character of the input signal on the current input. If the current input has been set to “Manual” and the input signal changes the SSP-25 will be unable to recognize the new signal. Pressing “AUTO” will correct the problem.

6) TRIM

Pressing this button brings up a display which reads: “Balance trim Left +0.0 dB.” By next pressing the keys marked “/\” or “\/” above and below the “ENTER” button you can either increase or decrease in 0.5 dB steps the volume of the Left front channel. You can navigate through the other individual channels by pressing the “<” or “>” buttons to the left or right of the “ENTER” button. The sequence is “Left Front, “Center”, “Right Front”, “Left Surround”, “Right Surround”, and “Subwoofer.” Only the selected channel is affected. Each press of the “/\” or “\/” button changes the volume up or down by 0.5 dB, and as well, each press of the “>” or “<” button moves from channel to channel. Pressing “Trim” again brings back the display previously selected. Changing the volume, using either the front panel mounted gain control or the “Volume” buttons on the remote, maintains the same balance selected with the “Trim” feature.

Changing the Trim affects all modes and all inputs identically. You may increase or decrease the level of any given channel by 8 dB. Since the intent of “Trim” is to modify the output for an individual movie or piece of music, the effect is not permanent. When the “Standby” mode is selected, or the ON/OF Switch on the rear panel is used to turn the unit fully off, “Trim” memory is erased. Permanent changes to the individual channel levels can made in “Setup” in as discussed in Section 5.

7) MENU

This button selects the Setup menu. It calls up the first Main (Configuration) MENU display, even if a lower level menu is currently displayed EXCEPT when the Main MENU is already displayed. In this case, pressing MENU will exit the menu system entirely. For a full explanation of its operation and importance see Section 5. Day to day use of the SSP-25 should not require use of the “MENU” button.

8) MODE

9) UP “/\” (Up Arrow)

10) LEFT “<” (Left Arrow)

11) ENTER

12) RIGHT “>” (Right Arrow)

13) DOWN “\/” (Down Arrow)

functionally identical to the front panel Mode control (Front Panel, #8, above) steps through the SSP-25’s operating modes in the following sequence: DTS, Stereo Surround, Stereo, Mono Front, Mono Center, Dolby Digital®, and Dolby Pro Logic®.

Increases settings selected in the setup sequence. Also used to increase channel level in the “Trim” mode.

Selects t he p re v ious (Configuration) MENU items. Also used to move back through the channels in “Trim” mode

The “ENTER” button, and the associated directional buttons arrayed around it, are used to navigate through the setup sequences which become available when the “MENU” button is pressed. See Section 5 for full explanation of their use.

This button selects a subsequent (Configuration) MENU item. Also used to move forward through the channels in “Trim” mode.

Decreases settings selected in the setup sequence. Also used to decrease channel level in the “Trim” mode.

14) AV1

Pressing this button directly selects the Audio-Video 1 input for use. “AV1” will be briefly displayed in the panel window, then the type of audio signal and decoding mode will display.

15) AV2

Pressing this button directly selects the Audio-Video 2 input for use. “AV2” will be briefly displayed in the panel window, then the type of audio signal and decoding mode will display.

16) AV3

Pressing this button directly selects the Audio-Video 3 input for use. “AV3” will be briefly displayed in the panel window, then the type of audio signal and decoding mode will display.

17) AV4

Pressing this button directly selects the Audio-Video 4 input for use. “AV4” will be briefly displayed in the panel window, then the type of audio signal and decoding mode will display.

18) AUD1 Pressing this button directly selects the Audio-only 1 input

for use. “AUD1” will be briefly displayed in the panel window, then the type of audio signal and decoding mode will display. The previously selected AV input will remain lit.

19) AUD2

Pressing this button directly selects the Audio-only 2 input for use. “AUD2” will be briefly displayed in the panel window, then the type of audio signal and decoding mode will display. The previously selected AV input will remain lit

20) AUD3

Pressing this button directly selects the Audio-only 3 input for use. “AUD3” will be briefly displayed in the panel window, then the type of audio signal and decoding mode will display. The previously selected AV input will remain lit.

21) COMPR

Dolby Digital specifications allow a special “Night Mode” format which reduces the loudness of special audio effects. Pressing the “COMPR” button turns on two levels of compression: “Medium” and “Full”.

22) MUTE

The operation of this button is functionally identical to the same labeled button on the face of the SSP-25. This button mutes the SSP-25’s main outputs. A second push restores the previously selected operating levels. Record output is unaffected. The Mute button provides a convenient way to lower the volume when answering the telephone.

*NOTE remove muting, but turning down the volume while in mute mode will not remove muting, but when muting is removed the new lower volume level will be present. Muting can be removed either with the mute button or by turning up the volume slightly

23) “\/’ VOLUME (down) Affects Master Level settings in a manner identical to turning

the front panel Master Level Control counterclockwise. Pressing the button and releasing it causes the volume to decrease in a 1 dB step. Holding the button down will, after a brief pause after a 1 dB decrease, cause the volume to continuously decrease in 1 dB steps until the button is released. –80 dB is the minimum level.

24) “/\” VOLUME (up) Affects Master Level settings in a manner identical to turning

the front panel Master Level Control clockwise. Pressing the button and releasing it causes the volume to increase in a 1 dB step. Holding the button down will, after a brief pause after a 1 dB increase, cause the volume to continuously increase in 1 dB steps until the button is released. +35 dB is the maximum level.

: Turning the volume up with the volume knob will

Section 2: Installation Overview

This Section discusses the broad concepts of installation, setup, and menu usage. It is an outline for the experienced installer, not a step-by-step guide to all the configuration choices available. You’ll find examples that suggest possible approaches incorporating the SSP-25’s remarkable flexibility. The following Sections contain specific instructions for each topic outlined here.

SSP-25 rear Panel

2.1 System Hookup: Rear Panel Connections

2.1.1 Connections to system power amplifier(s) For Left Front and Right Front channels, choose XLR (balanced), RCA (single ended), or DB25 multipin

connections. For Center, L-Surround, and R-Surround channels, choose either RCA or DB25 connection. For Subwoofer, use either RCA or DB25 connections. The SSP-25 contains a digital-domain bass

crossover. For that reason, we recommend that you consider bypassing any other crossover in the signal path.

2.1.2 Audio Source Component Connections The SSP-25 could conceivably handle up to 16 audio sources because it is capable of automatically

distinguishing between analog and digital signals and prioritizing them. It will also automatically recognize and properly decode the different digital formats available.

There are 3 dedicated Audio-only inputs (which only means there is no video input associated with them), and 4 dedicated audio-video inputs (which, naturally, means there is a video input dedicated to each one). AV4 has a potential of 3 digital audio inputs (1 of which is dedicated to demodulated AC3). Each Audio-only input has a digital and an analog input, as does each Audio-Video input.

Thus, the SSP-25 can accommodate up to 9 digital sources and up to 7 analog sources. Of course it is extremely unlikely that anywhere near that many sources would be connected to the SSP-25. However; as you can imagine, there is very little likely-hood that there is not a way to configure even an extremely complex Audio/Video installation, as long there are no more than 4 Video sources.

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