Niles Audio PSW800 manual Speaker Wire, Very Large Subwoofer Array Vlsa, Ciency. See Figure

Now, the volume control will raise and lower the volume for the subwoofer and the left and right speakers simultaneously. Additionally, the crossovers are now con- nected so that the crossover switches can be adjusted to your requirements. You must adjust the crossovers on each subwoofer with this hook-up.

Optionally, a jumper of wire may be con- nected between the L+ and the R+; and between the L- and the R-. This connects both voice coils of the PSW800, giving you a 2dB increase in output. Since each subwoofer’s impedance drops from 8Ω to 4Ω, make sure your amplifier is 2Ω stable to accommodate the satellite speaker’s impedance. (See Figure 6).

PSW-800 PASSIVE SUBWOOFER

H

SW2

range (or with an external electronic crossover) by a separate amplifier channel. Connections are straight-forward; two conductor wires connect each amplifier channel to each individual subwoofer. (See Figure 7).

SI-1230

Subwoofers

Figure 7

Connections to a VLSA are normally made from each PSW800 to a multi-channel amplifier like the Niles SI-1230 twelve-channel amplifier.

Each PSW800 has a jumper installed to parallel the voice coils for maximum effi-

Connections

L

C

ciency. (See Figure 6).

C

L

IN

RIGHT —

IN

SW1

H

WF – WF

The crossover controls on each subwoofer affect only the subwoofer response. Level controls on the amplifiers facilitate blend- ing and compensation for placement.

Speaker Wire

Figure 6

Connecting the two voice coils in parallel with a jumper (a piece of speaker wire).

Very Large Subwoofer Array (VLSA)

Using four or more PSW800 subwoofers in a system creates a system of unprece- dented clarity, with stunning bass impact and potentially extraordinary maximum volume capability. Because of the extremely low impedance of a parallel VLSA system, multiple channel amplifiers are normally used to power them. Because of this, in-wall volume controls are incompatible with VLSA systems.

In a system of this type, it is recommended that the satellite speakers be driven full

For most applications, we recommend you use 16 or 18 gauge wire. For wiring runs longer than 80 feet we recommend 14 gauge wire. The spring loaded terminals of the PSW800 speakers will accommodate up to 12 gauge wire directly. Larger sizes can be accommodated via pin connectors. When you run wire inside walls, special jacketing (CL-2 or CL-3) is required to both protect the wire and for fire prevention. In some areas conduit is required. For a trou- ble-free installation, low voltage wire such as speaker wire must be run in accordance with the National Electrical Code and any applicable provisions of the local building code. Consult your local Niles dealer or your building contractor if you are unsure of code requirements in your area.

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