2
Front Panel
Buffer
– When this button is in, the input signal will go through a
high-quality audio buffer. A buffer lowers the impedance of the input
signal, making it “stronger” and preventing it from losing treble or
signal level when splitting the signal to two outputs. When this
button is out, the buffer is disconnected from the signal path.
If you find your signal sounds dull or muted, try engaging the buffer.
Unless your signal is already buffered, you will likely want to use the
buffer when using the
Iso B
button or if the B output is inverted (see
below).
Iso B
– When this button is pressed in, it inserts an isolation
transformer in front of the B output. The isolation transformer breaks
ground loops between the two amps. Ground loops are a common
occurrence when using more than one amp, and you can tell you
have a ground loop if you hear an unusually large amount of hum or
buzz from your amps. Pressing the
Iso B
button should break the
ground loop and eliminate the hum.
TRS In
– Pressing this button switches the input jack to accept a TRS
(tip-ring-sleeve) or stereo input. When engaged, the signal from the
input tip conductor will only be sent to the A output, and the signal
from the ring conductor will only be sent to the B output. This is
typically used for electric guitars with piezo pickups – each pickup’s