4operation modes
mode selection
The
stereo
In Stereo mode,both channels operate independently,with their input atten- uators controlling their respective levels. Signal at Channel A’s input produces output at Channel A’s output,while signal at Channel B’s input produces out- put at Channel B’s output. Recommended minimum nominal load impedance for stereo operation is 2 Ohms per channel.
parallel
When set to Parallel mode, program material applied to Channel A’s input will appear at both Channel A and B outputs.The attenuator for Channel A controls the level for both A and B outputs.
bridged
Bridged mode straps both amplifier channels together to make a single- channel monaural amplifier. One channel pushes and the other pulls equally, increasing the power output over that of either channel alone
(see Specifications). Signal is applied to the Channel A input only. Channel A’s attenuator is used to control signal level.
Use extreme caution when operating the amplifier in Bridged mode. Never ground either side of the speaker cable when the amplifier is in Bridged mode; both sides are “hot.”
If an output patch panel is used, all connections must be isolated from each other and from the panel.The recommended minimum nominal load imped- ance in the Bridged mode is 4 ohms, which is the equivalent to driving both channels separately at 2 ohms.
LT / ST owner’s manual
Connecting amplifier | a |
outputs to oscilloscopes |
|
or other test equipment |
|
while the amplifier is |
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in bridged mode may damage both the amplifier and test equipment!
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