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Russound ALTx-2 Installation Manual
Rev. 2
INSTALLATION
Type of Speaker Cable
For most applications, 16 gauge, stranded copper speaker cable is recommended for the ALTx-2
speaker connections. For wiring runs longer than 100 feet, 14 gauge wire is recommended. Always
use cable with a "CL" fire rating.
NOTE - Never use solid-core, aluminum or Romex® type cable with volume controls.
P-Ring and Electrical Boxes
From the wallplate/faceplate to the back of the ALTx-2, the mounting depth of the volume control
is 2-7/8”. It requires a minimum of a standard light switch plaster ring (p-ring) or standard 22 cu. in.
(or larger) electrical box.
CAUTION: Do not install the ALTx-2 into electrical boxes with 110V devices. Do not locate speaker
wires too close to a light switch or dimmer switch as this may cause a humming or buzzing sound
to be heard through the speakers. If it is necessary to locate the volume control near electrical
devices, install it in a separate metal electrical box, ground the box to the electrical system ground,
and route the speaker wires several feet away from the electrical wiring.
EZB Connecting Blocks
The EZB-1SC and EZB-2SC connecting blocks are Russound accessories that simplify connections
of multiple volume controls and speaker pairs. The EZB-1SC is a neat, compact wiring device for
connecting up to four volume controls to an amplifier's outputs. The EZB-2SC expands the EZB-1SC
to another four volume controls.
Wiring Instructions
CAUTION: Many receivers operate at a rating of 8 ohms. On receivers that offer A and B speaker
outputs, both A and B connections share the same amplifier. It is recommended to wire all speakers
to the A output (using an EZB-1SC) when using impedance matching UltraMatch™ volume controls.
Do not mix speakers connected via volume controls with speakers connected directly to the amp/
receiver.
