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Mesa Boogie California Tweed 6V6 4:40 1x12” Tube Amp w/ Extension Cab, Covers, Tags


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Up for sale, a Mesa Boogie California Tweed 6V6 4:40 1x12” combo amplifier in like-new condition and in perfect working order, complete with a matching 1x12” extension cabinet, factory documentation/owner’s manual, and pair of slip covers. This Mesa combo is a modern homage to the original boutique ‘50s Tweed-style circuits built by Boogie founder Randall Smith in the late 1960s, capturing the same organic voice, smooth clean-to-clip transition, and powerful controls as those iconic 6V6-loaded amps.

This amp features a single channel design with dual inputs (Normal and Low), 40 watts of power with five selectable power levels, two operating classes, and three wiring options, loaded with a 12” Jensen Blackbird Alnico speaker. This amp delivers clear, articulate trebles, fat mids, and loose, airy lows that retain excellent articulation, with lush atmosphere on tap via the all-tube long-tank spring Reverb. The user-friendly control configuration includes Gain, Treble, Mid, Bass, Presence, and Master, with a knob for the footswitchable (footswitch not included) Reverb and a Multi-Watt five-way rotary knob (2W, 10W, 20W, 30W, 40W).

The Multi-Watt technology is enabled via Mesa’s patented Incremental Multi-Watt Power Amp, with Dual-Class and Dyna-Watt technologies.

40 Watts: 4x 6V6 Class A/B Pentode
30 Watts: 2x 6V6 Class A/B Triode + 2x 6V6 Class A/B Pentode
20 Watts: 2x 6V6 Class A/B Pentode
10 Watts: 2x 6V6 Class A/B Triode
2 Watts: 1x 6V6 Triode + 1x 6V6 Pentode, single-ended Class A parallel

The original tube complement comprises a matched quartet of Mesa 6V6 power tubes, with a preamp section of five 12AX7s and one 12AT7 (all Mesa-branded). The speaker is a Jensen 12” Blackbird 40, rated at 8 ohms, designed to deliver brilliant cleans and tight lows, with acoustic-like cleans and crunchy, textured overdrive when pushed hard. The extension cabinet features the same Jensen speaker.

The amp and extension cabinet are both crafted from marine-grade Baltic birch, with cosmetic touches including cream bronco vinyl, cream/tan weave jute grillcloth, and brown leather handles and corners. Ostensibly brand new, there’s nary a mark on either the amp or the extension cabinet.

The original factory documentation/owner’s manual and slip covers are included.