BASIS M 
2000
Description:
By now you see the M-2000houses 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-2000is 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'sSimul-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-2000has 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.
CAUTION: NEVER BLOCK AIR VENT
FRONT VIEW BASIS M-2000
| | 50Hz 80 | 180 300 | 600 1.2K | 4K | 6K | 8K | | SIMUL STATE POWER | 50Hz | 80 | 180 300 | 600 1.2K | 4K | 6K | 8K | | |
ACTIVE | | | | | | | | | | | | | | | | | | | |
| EQ IN | | | | | | | | | | | | | | | | | EQ IN | |
| OUT | | | | | | | | | | | | | | | | OUT | |
| MIX MODE | | | | | | | | | | | | | | | | | MIX MODE | |
| BRIGHT | | | | | | | | | | | | | | | | | BRIGHT | |
INSTRUMENT | | | MESA BOOGIE | | | COMPRESSION | 50% | COMPRESSION | | | BASIS M 2000 | | | ON |
INPUTS | NORMAL | | | | | | | | | | NORMAL | |
| | | | | | | | | | |
| HI GAIN | | | | | | | | TUBE | FET | | | | | | | | HIGH | |
| NORMAL | | | | | | 3:1 | THRESHOLD | MIX | THRESHOLD | 3:1 | | | | | | | | |
| | | | | | 5:1 | | TUBE | FET | 5:1 | | | | | | | LOW | |
PASSIVE | MIX | GAIN | | | | | | | | | | MIDDLE | BASS | BASS FREQ. | | POWER |
TREBLE | MIDDLE | BASS | MASTER | | HI GAIN | CLIP | MASTER | TREBLE | BASS |
| ASSIGN | | | | | | OFF | OFF | | | | | | | SHIFT | |
| | VACUUM TUBE CHANNEL | | FREQUENCY | | FIELD EFFECT CHANNEL | | | |
| | | | FREQUENCY | OUTPUT LEVEL | | | | | | |
REAR VIEW | BASIS M-2000 | | | | | | | | | |
| | EXTERNAL SELECT | SPEAKER OUT | SPEAKER | | | EFFECTS LOOP | | CHANNEL SELECT |
12A S.B. | | TUBE | FET | | OUT | | TUBE | | FET | MIX MODE |
| | ON | CROSSOVER | |
| | | | | | FET | | | | EXT | TUBE |
FUSE | | | | | | OFF | MIX | | SEND | | FOOT | TUBE |
| | | | | | MODE | HIGH | | SWITCH | HI GAIN |
| | | | | | | | LOW | | | |
250 VOLTS | EQ | | EQ | | | FX LOOP AUTO | | MIX | | FOOTSWITCH |
| SUGGESTED LOAD 4 OHMS | | | | | FUNCTION ASSIGN |
| | | | | | | | | |
| | | | | | | | RETURN | | | |
| | | | 600 WATTS RMS | | POST | PRE | | | MUTE | GAIN |
| | | | | | | |
| | | | MINIMUM LOAD 2 OHMS | | 0% | 100% | |
| | | | | | | | | |
117 VAC 60Hz 1200VA | | TUBE | MIX | SPEAKER OUT | SPEAKER | | | BALANCED | TUNER | | |
| HI GAIN | MODE | OUT | BALANCED OUTPUT | | LEVEL | OUTPUT | FOOTSWITCH |