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SPEAKER OUTPUTS:
These are the Speaker Outputs for the M3 CARBINE. These jacks accept standard ¼” phono type
plugs. This is the suggested configuration. With an 8 ohm speaker load, your M3 CARBINE will produce approximately 150
watts of clean power. A 4 ohm speaker load connected to your M3 CARBINE will produce approxi-
mately 300 watts of clean power.
TUNER:
This Rear Panel auxiliary TUNER output provides for Rear Panel interfacing of rack mount tuners, where it is preferable
to have all wiring stay in the rear of a rack system.
EFFECTS LOOP:
The M3 CARBINE incorporates an internal EFFECTS LOOP to handle the interfacing of outboard pro-
cessing. This circuit is a patch point between the preamp and the power section and it is wired in series with the dry (un-affected)
signal. Since this loop is a series-type loop (as opposed to parallel) it is important that you use good quality proces-
sors “in the middle” of your amp. While the loop is compatible with most processor Input/Output impedance demands,
there can be a lot of room for sonic compromise in some of the less expensive units. Remember that every part in
your signal path is a tone part.
NOTE: Always use good quality shielded cable of the shortest possible length when patching your effects. One foot
lengths are preferable - with lengths of more than 3 feet (each cable) starting to roll off top end and reduce midrange
punch and clarity.
The LOOP is fitted with a “Hard Bypass” switch that allows you to completely remove all associated LOOP circuitry from the signal
path when you are in the studio or when the LOOP is not to be used. While many won’t be able to hear any discernible difference
with the LOOP bypassed, for you purists, it will give you peace of mind that your signal is as direct as possible.
To use the EFFECTS LOOP:
1) Connect the SEND jack to your processor’s Input
2) Connect the RETURN jack to your processor’s Output
3) Switch the EFFECTS LOOP BYPASS switch to the ON position.
4) Adjust the processor’s Input/Output Level attenuator to achieve unity gain by toggling the LOOP switch in and out of BYPASS
while making fine adjustments at the processor until you hear no level difference. Keep in mind you might have to adjust the M3
CARBINE OUTPUT control also if the processor indicating lights read unity gain (look good and are not clipping).
NOTE: The EFFECTS LOOP IS optimized for professional quality rack mount processors. Most pedal type effects work better in the
“front-end” between your instrument and the INPUT. You will experience some tonal changes because of the additional cable and
the fact that your instrument will no longer be going straight into the grid of the first tube. It’s up to you to decide if the trade off is
acceptable.
reAr PANeL CONTrOLS: (Continued)
VACUUM T UBE PREAMPLIFIER
MOSFET POWER
HAND BUILT IN PETALUMA, CALIFORNIA
120 V~
60 Hz
5 A
6.25 A
WARNING:
Replace fuse with same type/rating only.
Do not expose to rain or moisture.
CAUTION:
Risk of Electric Shock. Do Not Open.
No user serviceable parts inside.
®
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