Velodyne Acoustics IA-400 User Manual

SERIES

IA-400

Subwoofer Amplifier

IA-IWS1

In-Wall Subwoofer

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IMPORTANT SAFETY INSTRUCTIONS

Caution

To reduce the risk of electric shock, do not remove cover (or back). No user-serviceable parts inside. Refer
servicing to qualified service personnel.

The lightning flash with arrowhead symbol 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 symbol is intended to alert the user to the presence of important operating and
maintenance (servicing) instructions in the literature accompanying the subwoofer.

1. Read Instructions — All safety and operating instructions should be read before the product is operated.

2. Retain Instructions — The safety and operating instructions should be retained for future reference.

3. Heed Warnings — All warnings on the product and in the operating instructions should be
adhered to.

4. Follow Instructions — All operating and use instructions should be followed.

5. Water and Moisture — The product should not be used near water — for example, near a bathtub,
washbowl, kitchen sink, laundry tub, in a wet basement, near a swimming pool or the like.

6. Carts and Stands — The product should be used only with a cart or stand recommended by
the manufacturer.

7. Wall or Ceiling Mounting — The product should be mounted to a wall or ceiling only as recommended
by the manufacturer.

8. Ventilation — The product should be situated so that its location or position does not interfere with its
proper ventilation. For example, the product should not be situated on a bed, sofa, rug, or similar surface
that may block the ventilation openings; or placed in a built-in installation such as a bookcase or cabinet
that may impede the flow of air through the ventilation openings.

9. Heat — The product should be situated away from heat sources such as radiators, heat registers,
stoves, or other products that produce heat.

10. Power Sources — The product should be connected to a power supply only of the type described in
the operating instructions or as marked on the product.

11. Grounding or Polarization — This product may be equipped with a polarized alternating-current line plug
(a plug having one blade wider than the other). This plug will fit into the power outlet only one way.
This is a safety feature. If you are unable to insert the plug fully into the outlet, try reversing the plug.
If the plug should still fail to fit, contact your electrician to replace your obsolete outlet. Do not defeat
the safety purpose of the polarized plug.

12. Power-Cord Protection — Power-supply cords should be routed so that they are not likely to be walked
on or pinched by items placed upon or against them, paying particular attention to cords at plugs,
convenience receptacles, and the point at which they exit from the product.

13. Cleaning — The product should be cleaned only as recommended by the manufacturer.

14. Nonuse Periods — The power cord of the product should be unplugged from the outlet when left unused
for a long period of time.

15. Object and Liquid Entry — Care should be taken so that objects do not fall and liquids are not spilled
onto the enclosure.

16. Damage Requiring Service — The product should be serviced by qualified service personnel when:
a. The power-supply cord or plug has been damaged.
b. Objects have fallen or liquid has been spilled into the product.
c. The product has been exposed to rain.
d. The product does not appear to operate normally or exhibits a marked change in performance.
e. The product has been dropped or damaged.

17. Servicing — The user should not attempt to service the product beyond what is described in the
operating instructions. All other servicing should be referred to qualified service personnel.

18. Lightning — For added protection for the product during a lightning storm or when it is left unattended
and unused for long periods of time, unplug it from the wall outlet.

19. Overloading — Do not overload wall outlets, extension cords or integral convenience receptacles as this
can result in a risk of fire or electric shock.

20. Attachments — Only use attachments and accessories specified by the manufacturer.

21. Voltage — Insure that the subwoofer is only connected to the rated source voltage. Do not connect the
120-volt version to 230-volts or vice-versa. This will result in damage to the subwoofer and possible
injury to the user.

CAUTION: To prevent electrical shock, match wide blade of plug to wide slot, fully inserted.

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TABLE OF C ONTENTS

Congratulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

– IA-400 Subwoofer Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

– IA-IWS1 (In-Wall Subwoofer) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Setup Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

– Front Panel Controls and Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

ear Panel Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

– R

Rear Panel Connections - Detailed Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

– About Low-Pass Crossovers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

– A Word About Your Home Theater Receiver’s Crossover and the IA-400 Amplifier’s Crossover . . . . . . . . . . . . . . . . . . . . . . .8

– A Word About Interconnect Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

– A Word About Subwoofer Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Restore Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Care of Your Amplifier and Subwoofer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Troubleshooting and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

endix A: RS-232 Serial Overview and Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

App

Chrysalis Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

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C ONGRATULATIONS

ongratulations on your purchase of a Chrysalis™ InstallAdvantage Series (IA) amplifier and subwoofer. This system represents the

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state-of-the-art in low frequency reproduction. Read and follow the instructions below to ensure safe and proper system operation.

Warning!

To prevent fire or shock hazard, do not expose this equipment to rain or moisture. To avoid electrical shock, do not open the speaker
enclosure or the amp chassis cover. Please observe all warnings on the equipment itself. There are no user serviceable parts inside.
Please refer all service questions to your authorized Chrysalis dealer.

Prior to Installation

Please unpack the system carefully. Please save the carton and all packaging materials for future use. Record the serial number in the
space provided on the warranty card, on page 19, for future reference.

P RODUCT F EATURES

IA-400 Subwoofer Amplifier

• 400 watts dynamic/200 watts RMS high efficiency, Class A/B

• DSP-controlled

• Four selectable presets for customized listening mode

• Automatic 5-band room equalizer (microphone included)

• Night-mode setting

• Mute control

• Line-level (RCA) inputs and outputs

• Speaker-level inputs with 5 way binding post connections

• Signal sensing auto turn on/off (defeatable)

• Variable volume control

• Selectable phase control (0, 90, 180 or 270 degrees)

• Built-in adjustable (30-160 Hz) digital low-pass crossover with 24 dB/octave slope

• Driver Displacement Control software to prevent over excursion and amp clipping

• Blue power indicator LED

• RS-232 Serial Interface
rigger

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• 12 V

• Universal IR repeater mini-jack

eset-specific subsonic filter

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IA-IWS1 (In-Wall Subwoofer)

- Two high excursion 6.5” active drivers, two 12.5” x 3” oval passive radiators with ribbed rubber surround

- High-excursion rubber surrounds on both active and passive drivers

- 2” 4 layer copper voice coils

- Frequency Response: 30 - 120Hz (+/- 3 dB)

- 4 ohm impedance

NOTE: The IA-IWS1 must be driven with the IA-400 subwoofer amplifier. Use of any other power source voids the warranty.

S ETUP C HECKLIST

Be sure to do the following to ensure the best performance from your subwoofer:

❑ If possible, optimize the placement of the subwoofer(s) in the listening area. See page 9 of the User’s Manual.
❑ Install and wire the subwoofer per the instructions on pages 3 - 9.
❑ Select the proper volume level. See page 4.
❑ Be sure the low pass crossover is set correctly. See pages 8 - 9.
❑ Be sure to equalize the subwoofer using the microphone and Auto-EQ feature. See page 10.
❑ Be sure to set the phase control on the remote. See page 10.
❑ Select the correct preset for the source material. See page 12.

Your new Chrysalis subwoofer system provides for a number of installation options. Read all the installation information below in order to
determine which installation option is best for your system. Remember to perform all installation procedures with system power turned off.

NOTE: For proper set-up and installation of the IA-IWS1 (In-Wall Subwoofer), please refer to IA-IWS1 Quick Install Guide.

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I NSTALLATION

Front Panel Controls and Displays

Figure 1: Front Panel Connections of the IA-400 amplifier.

Following are brief descriptions of the controls described in Figure 1. More detail on these controls can be found in the next section.

(1) Power Switch

This button forces your IA-400 amplifier into standby mode. The power LED turns amber, the numeric LED shuts off, and the
amplifier puts out no power. The unit will remain in this mode until the POWER button is pressed again. To fully deactivate
(i.e. power down) the unit, use the main power switch on the back panel.

(2) Power LED

This LED illuminates when the power is on. Blue indicates normal operation. The LED turns amber when the unit is in standby mode
or the remote has been used to deactivate the unit, and dims when the unit is in night mode.

(3) Mic Input

Connect the supplied microphone for the Auto-EQ feature to this mini-jack input.

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(4) Re

This is the eye that receives infrared commands from the supplied remote.

(5) Low-Pass Crossover

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se these up and down buttons to select the frequency below which all signals will be routed to the subwoofer (for example, 80 Hz),
rather than to the main speakers.. The frequency is indicated on the LED display briefly, then the display reverts to showing the
subwoofer’s volume level. The slope is fixed at 24 dB/octave. To deactivate the crossover, press BOTH the up and down crossover

s at the same time – two dashes on the display indicate the crossover is deactivated and the woofer plays all frequencies presented

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to it. Please see page 8 for a more detailed discussion on crossovers.

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(6) LED Numeric Indicator

This LED supplies information on volume, crossover, woofer type, and other information. The “light” button on the remote deactivates
this display. Upon startup, the display shows the “IW”, referring to the IA-IWS1 subwoofer that the IA-400 amp is controlling, then
reverts to the volume indicator.

(7) Volume Control

These buttons allow you to balance the output from the subwoofer to the main speakers in your system. The volume should be set to
achieve similar volume level of both the main speakers and subwoofer.The default volume is 30.

Note: Volume can also be controlled by using the supplied remote.

WARNING: Some manufacturers preset their receivers with the Sub-Out (a.k.a. LFE) channel signal at a minimum level. It is very

important to verify that your receiver Sub-Out channel is set to the same output level as your front right and left channels. Refer to your
receiver manual for the individual channel level adjustment procedure. If your receiver Sub-Out channel is set too low, the subwoofer may
appear to have a weak output, it may sound noisy or distorted, and the Auto On/Off feature may not operate properly.

(8) Optional Rack Mount Ears (Included)

These ears can be attached to the IA-400 amp to allow standard 19” rack mounting.

Rear Panel Conections

Following are brief descriptions described in Figure 2. More detail on these controls can be found in the next section.

Figure 2: Rear Panel Connections of the IA-400 amplifier.

(9) Thru Jacks

These RCA connectors are for passing along the same signal that goes into your subwoofer to a second “daisy-chained” system. The signal
from these RCA connectors is the same as the input signal.

(10) Line Input / LFE Input

nect these jacks to the LINE OUT preamp output, LFE output, or subwoofer output jacks of your receiver/processor. If using the

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utput from your receiver or processor, plug the single cable into the jack labeled LFE input or, for more signal, use a “Y” connector

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LF
(optional) and feed the signal into both “R” and “L” inputs. Examples of these types of connections can be found in Figures 2A and 2B.

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