Product Overview
The WALTx-2 Weatherproof Volume Control is designed to provide volume control
for outdoor or wet locations and can be mounted on an exterior wall or hard, flat
surface, as well as directly on a section of 3/4" PVC conduit. The WALTx-2 provides
superior protection against moisture from rain, splash or sauna.
The WALTx-2 connects between the speaker outputs of an amplifier or receiver and a
pair of speakers. The 1X setting allows the volume control to be used as a standard
control. The 2X, 4X, and 8X settings allow it to be used as an UltraMatch™ control
when more than one pair of speakers is connected to the same amplifier.
The UltraMatch™ volume control provides a method of matching the minimum
output impedance of the amplifier or receiver, in addition to adjusting volume. It
eliminates the need for a speaker selector or impedance matching equipment. The
WALTx-2 adjusts volume level by attenuating the amplifier signal output of the
WALTx-2 to the speakers.
All Russound Volume Controls are manufactured using a high-quality autoformer
design which provides long life, excellent frequency response, no heat build-up, and
maximum power transfer from the amplifier to the speakers.
All Russound WALTx-2 volume controls conform to UL Standard 1492 First Edition,
and for Canada Certified to CSA Standard 22.2 No. 1-M94. This certification assures
that your WALTx volume control has been designed and tested for safety.
Determining the Proper Jumper Setting for Impedance Matching
The jumpers must be set in a position that correctly multiplies the impedance of the
system to a level that is equal to or greater than the impedance of the amplifier. The
jumper setting can be determined using the following simple steps:
1.
Determine the amplifier's minimum impedance. The amplifier's minimum
impedance is usually found following Wattage and Frequency Response in the
amplifier's specification page of the manual. It may also be listed on the back
panel of the amplifier near the speaker terminals. AC impedance is measured
in ohms.
2.
From Fig. 1 identify the correct impedance-matching chart according to the
amplifier's minimum impedance. There are two impedance matching charts,
one for 8-ohm amplifiers and one for 4-ohm amplifiers. Choose the chart that
describes your amplifier. If your amplifier is 6-ohm stable, use the 8 ohm chart.
2