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Mesa Boogie Simul-Class (stereo) 2:90 tube amp & Triaxis preamp - $2,450 (Tumalo)
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A. Mesa 2 channel (stereo) 180w tube amp (Serial# N-3943)
B. Mesa Triaxis Preamp (Serial# T0575)
C. Mesa SUS-4 (4 position Super Shockmount System) rack mounting case
D. Furman M-8x Power Conditioner
Please Note: Not interested in selling the case, Furman or Triaxis individually.
4 sale options:
1. Amp/Triaxis/Furman/Case combo for $2,450
2. Amp/Triaxis (no Furman or Case) combo for $2,200
3. Amp/Case combo for $1,100
4. Amp for $900
Each component is in like-new condition and performs with no issues. The Triaxis even still has the protective film.
Prices are firm (and competitive).
If interested, reply with phone number (and the best time to call) and we will arrange to meet.
NOTE: I will only respond to emails which provide a phone number.
The Mesa/Boogie TriAxis is a legendary all-tube (12AX7) programmable guitar preamplifier, introduced in October 1991. It packs the heritage of Mesa's iconic Mark Series amplifiers—including the Mark I, Mark IIIC+, and Mark IV—into 8 distinct, MIDI-controllable modes.
The Simul-Class 2:Ninety is designed specifically to interface with the TriAxis, featuring MIDI-switchable Deep, Half-Drive, and Modern modes. The stereo output can be used with various effects, creating a multidimensional sound.
Simul-Class 2:90 Features:
Hand-Wired in Petaluma, California
90 Watts per Channel
Simul-Class™ Power via 8-6L6 tubes (4 per channel), 3-12AX7 tubes
Fixed Bias for Consistent, Maintenance-Free Performance
Independent Volume & Presence Controls per Channel
Smart Power™ Featuring Deep, Half Drive & Modern Modes, triggered by any tip-to-ground foot switch (or can be triggered from a TriAxis™ Preamps’ External Switching Jack).
Deep extends the bottom for huge low end;
Half-Drive knocks down the wattage for a low power clip
Modern brings forward an aggressive top end for tight tracking crunch.
Line / Instrument Input Select
Ground/Lift Switch
Fan Cooled
Weight: 35lbs
Dimensions: 3 1/2" H x 19" W x 13 1/2" D (2 Rack Spaces)
Simul-Class™ magic comes from the pairing of two separate and different power amps working together simultaneously to produce a three dimensional tone.
For each channel, one pair of 6L6s tubes operates in Class AB delivering punch and headroom.
Meanwhile, the other two impart the sweetness and warmth of mystical Class A circuitry.
The Mesa Boogie SUS-4 4-space (4U) rack is a highly sought-after, (discontinued) shock-mount ATA flight case engineered specifically to protect heavy vacuum tube guitar and bass amplifiers. Unlike cheap modern cases that trap heat using foam insulation, the SUS-4 system utilizes a specialized mechanical rubber damper suspension that leaves an open air gap around the inner frame. This clever design offers supreme impact protection while ensuring maximum cross-flow ventilation so heavy-duty tube heads do not overheat.