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Connections

Connecting the IW-28 SUB to Your System

WARNING: To prevent risk of electrical shock or damage to your

equipment, always switch off the amplifier or receiver when making

any system connections.

Speaker Connection

It's important to observe polarity while making speaker connections: red

(+) terminals on the amplifier to red (+) on the speaker, black (–) on the

amplifier to black (–) on the speaker. Look carefully at the wires you are

using and note that one of the conductors of each pair will typically be

identified by either color, printing on the outer jacket, ridges on the outer

jacket, or a thread intertwined with the wire strands. By convention, the

marked wire is connected to the red (+) terminal.

We recommend that you connect your speakers using high quality dual

conductor stranded wire of 16 gauge or heavier, for lengths up to 25 feet

(8m). Remember, the lower the gauge number, the heavier the wire. Use

heavier gauge wire for longer runs. Please contact your audio/video dealer

or installer for specific cable recommendations and further information

regarding special circumstances. The terminals themselves are designed

to allow the use of very heavy speaker wire or connectors.

Strip about ½" (13 mm) of insulation from the connecting wires. Connect

them to the appropriate push terminal, being careful to observe polarity

(positive to the red terminal, negative to the black terminal).

WARNING: Before turning on the amplifier, be certain that no stray

wire strands are touching across any terminals as this might damage

your amplifier.

Home Theater with a Monoblock Amplifier

Connection

Leaving the jumpers in place, connect the speaker wires from the Mono-

block amplifier to one black terminal and one red terminal on the IW-28

SUB. (see fig 3)

Figure 3 – IW-28 SUB jumpers

IMPORTANT! Set the IW-28 SUB's front-panel Low-Pass switch to

the "off" position. This will bypass its crossover.

2 Channel – Passive Subwoofer Connection

Remove the jumpers from the IW-28 SUB's terminals (see fig. 4). Run

speaker wires from the receiver's left speaker terminals to one set of termi-

nals on the IW-28 SUB. Run another set from the receiver's right speaker

terminals to the other set of terminals on the IW-28 SUB. (see fig. 5) It does

not matter which set of terminal on the IW-28 SUB is considered 'right' or

'left'. Be careful to observe consistent polarity with all the speakers. All reds

and blacks should be consistent.

Figure 4 – Removing the IW-28 SUB jumpers

Figure 5 – Connecting as a Passive Bass Module

–

LEFT

IMPORTANT! Set the IW-28 SUB's front-panel Low-Pass switch to

the "on" position. This will filter out any signals above 200 Hz from

reaching the IW-28 SUB module.

IMPORTANT NOTE: Each individual woofer in the IW-28 SUB is 8 ohms;

when connecting them in parallel with your front L/R speakers (as you do

when using the IW-28 SUB passively), the front L/R speakers should also

be 8 ohms minimum, so that their combined paralleled impedance does

not fall below 4 ohms. Consult your receiver's instruction manual for

more information on its impedance drive capability.

IW-28 SUB In-Wall Subwoofer

–

RIGHT