Advertisement
is between 4 and 8, use X8; if it is greater than 8, reduce the
number of pairs of speakers.
EXAMPLE: 8 amplifier impedance ÷ 3 system impedance =
2.7 impedance-matching switch setting. Because 2.7 is between
2 and 4, use the X4 switch setting.
X1 setting: Use this setting only when the TBL-75 volume control is
used with an impedance-matching speaker selector. The X2, X4
and X8 settings are used when you are not using an impedance-
matching selector. Now that you have determined the proper
switch settings, set all the volume controls in the system to the same
setting (see diagrams opposite).
IMPORTANT: If you are unsure of any of the installation
procedures, the TBL-75 volume control should be installed by a
professional custom installer.
Installation
1. Strip 1/8" of insulation from the ends of all the wires that will be
connected to the TBL-75 volume control. If necessary twist or
solder the ends to keep from fraying and shorting to the other
wires. CAUTION: Do not reverse the input and the output
connections.
2. Connect the leads from the amplifier or speaker selector to the
connector labeled "input". The wires should stay consistent, left+
of the amplifier to the left+ input of the volume control,
observing polarity and identification.
3. As outlined in step #2, connect the speaker wires to the
connector labeled "output".
Operation
1. Make sure the amplifier or receiver is OFF and set the volume to
minimum.
2. Set the TBL-75 volume control to maximum (fully clockwise).
3. If you are using a Russound speaker selector system, locate the
On / Off button which corresponds to the speaker pair you wish
to play. Set it to the On position.
4. Turn on the amplifier or receiver and select a source such as a
CD player.
4
INPUT
L+
L-
R-
R+
X1
X8
L+
L-
R-
R+
X2
X4
OUTPUT
5. Slowly turn up the amplifier or receiver volume and set it to a
comfortable listening level. Be careful not to overdrive the
amplifier. If the sound becomes distorted, you have reached the
limit of the amplifier's volume capability and you should quickly
reduce the volume to avoid damaging the amplifier. Note: 12
o'clock on most receivers is full volume.
6. Adjust the volume of the speakers to the desired listening level
using the TBL-75 volume control.
7. You can turn off the speakers in the room by turning the knob on
the TBL-75 volume control completely counter-clockwise, or by
pressing the corresponding On/Off button on your speaker
selector.
Newmarket, NH U.S.A.
MADE IN KOREA
5
Advertisement
