Mesa/Boogie M 2000 - Manual (Page 6)

FRONT VIEW BASIS M-2000
By now you see the M-2000 houses two completely different pre-amplifiers, one all tube, one FET. These may be footswitched
between and/or combined by utilizing the Mix Mode, in which any blend of the two may be created. The Tube Channel offers the
choice of a normal (low gain) mode operation and an all tube Hi Gain overdrive mode for wilder applications. Each of these pre-
amps offers the full array of rotary style tone controls, producing a rich, warm blend...fast! Each Channel may then be further
customized by engaging its own nine band graphic equalizer. These channel specific EQ's may be triggered in three ways: 1. Via
the front panel's mini toggle switch 2. Via the foot controller and 3. Programmed to engage in the Mix Mode automatically. Both
EQ's, as well as the modes, can be triggered remotely by using most tip to ground switches, such as the kind found on many
Master Rack Control systems. These ports appear as 1/4 inch jacks found on the rear panel in the External Select section.
Each channel also houses a Frequency Activated (shelving type) Compressor that can be bypassed or applied in 3:1 and 5:1
ratios. The
M-2000 is fitted with a parallel effects loop with a crossover enabling frequency specific effect placement as well as a
dry/wet blend control. This loop may be assigned to auto engage in any or all of the modes as well as bypassed. This crossover
can also be used to send a pre-amp signal of a selected frequency to another power amplifier for bi-amping. A Balanced Output
with pre and post EQ positions and a level control is provided for recording or live sound reinforcement applications. An output for
a Tuner is included and may be triggered remotely by the Gain switch on the Foot Controller.
The M-2000's Simul-State power section feeds two mono 1/4 inch jacks or two 3-pin XLR jacks to deliver a robust 600 Watts
RMS into 4 Ohms which is the recommended load. The toneful Simul-State circuit uses a 12AX7 driver tube to feed the power
block of 12 high quality mosfets. This design boasts the smooth warmth found in all tube circuits and the tight, immediate
response often associated with solid state amplification. As you can see, the
M-2000 has all the needed features to elevate your
playing to new plateaus, yet it remains simple and straightforward to use. The following is an explanation ot the controls and a few
setting examples.
Description:
OOGIE B M ESA
MIDDLE GAIN TREBLE BASS MASTER
VACUUM TUBE CHANNEL
OUT
EQ IN
MIX MODE
BRIGHT
NORMAL
HI GAIN
NORMAL
MIX
ASSIGN
ACTIVE
INSTRUMENT
INPUTS
PASSIVE
OUT
EQ IN
MIX MODE
BRIGHT
NORMAL
HIGH
LOW
BASS
SHIFT
FIELD EFFECT CHANNEL
80 180 300 600 1.2K 50Hz 4K 6K 8K 80 180 300 600 1.2K 50Hz 4K 6K 8K S IMUL S TATE P OWER
ON
POWER
50%
MIX
OUTPUT LEVEL
COMPRESSION
FREQUENCY
THRESHOLD THRESHOLD
COMPRESSION
FREQUENCY
3:1
5:1
OFF
5:1
3:1
OFF
TUBE
HI GAIN
FET
CLIP
TUBE FET
MIDDLE TREBLE BASS MASTER BASS FREQ.
B ASIS M 2000
117 VAC 60Hz 1200VA
TUBE
HI GAIN
EQ
TUBE
MIX
MODE
EQ
FET
EXTERNAL SELECT
TUNER
OUTPUT
BALANCED
LEVEL
SEND
RETURN
EFFECTS LOOP
CROSSOVER
FX LOOP AUTO
LOW HIGH
MIX
0% 100%
OFF
ON
TUBE
FET
MIX
MODE
POST PRE
BALANCED OUTPUT
CHANNEL SELECT
FOOT
SWITCH
EXT
FET MIX MODE
TUBE
TUBE
HI GAIN
FOOTSWITCH
FUNCTION ASSIGN
MUTE GAIN
FOOTSWITCH
SPEAKER
OUT
SPEAKER
OUT
SPEAKER OUT
SUGGESTED LOAD 4 OHMS
600 WATTS RMS
MINIMUM LOAD 2 OHMS
SPEAKER OUT
B
ASIS
M 2000
12A S.B.
FUSE
250 VOLTS
CAUTION: NEVER BLOCK AIR VENT
REAR VIEW BASIS M-2000
PAGE 1