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Caution: Never listen to sound that is distorted. If distorted
sound is heard, turn the volume down immediately or speaker
and/or amplifier damage could occur that is not covered by the
warranty. If this problem persists, contact your dealer.
User adjustments and service: There are no user
adjustments on the MX855. Your installer may make certain gain
level adjustments on the rear panel.
Caution: The MX855 contains no user serviceable parts, so do
not attempt to open or repair the MX855. Refer servicing to a
qualified technician only or contact the factory for information.
The Link button is normally set to the “in”
position to give all six stereo inputs individual
sources. When the Link button is set to the
“out” position, that input Left/Right is linked or
cascaded (or paralleled) to input #1 (without the use of Y
cords). Any or all combination of linked inputs 2 to inputs
4 are possible. When all inputs are linked to input 1 the
input impedance is about 6000 Ω.
Caution: NEVER connect the
MX855 to impedances less
than 4 Ω or amplifier
damage not covered by the
warranty may occur.
The trigger is 12 VDC (35mA per MX855) via 3.5mm mono
jack. 5 VDC trigger outputs will not work. To connect the
trigger to a receiver use a 12 VDC power supply (we
suggest Knoll PS1205 power supply with an adaptor). Plug
the power supply into the switched outlet on the rear of
the receiver. Connect the 12 volt wire to a 3.5mm mono
jack. Plug the jack into the rear of the MX855. 12 VDC
polarity is not important. Make sure the MX855 power
switch is off (out). When the receiver is switched on, the
MX855 amplifier is switched on.
Channel 4 can be mono bridged giving 180 watts into 8
ohms. Never connect speaker loads less than 8 ohms
to channel 4 in the bridged mode. Select the
bridge/stereo switch to the out position for the bridged
mode. The bridged input is 4L. The 4L gain pot adjusts the
bridged gain. The speaker is connected to the 4L+ and
4R+ in the bridged mode.