A Hybrid Bass Head Packing Subway Clarity and Boogie Warmth
Inspired by Randall Smith’s original Bass 400 tube design, the Subway TT-800 refines and blends the best of its historical predecessor with Mesa’s beloved Subway preamp and a Class D output section. The result? A genre-defying bass amp that excels at home, in the studio, and on the stage. This head’s dual-channel design supplies you with both a Subway channel for modern-minded clarity and a Boogie channel that unlocks a rich, classic low-end character. Each channel sports a dedicated EQ section for interactive tone shaping, along with four global switches that unlock High-/Low-gain voices, a Deep switch to sculpt your signal’s bottom end, and a Bright switch to sharpen up your bass’s definition. Plus, both channels feed into a robust 800-watt Class D power amp that comes equipped with a gritty onboard overdrive. You also get a seriously robust I/O section on the back panel with channel-specific effects loops, balanced DI outs, heavy-duty speakON speaker outs, and more. Classic and modern all at once, the Mesa/Boogie Subway TT-800 covers all your low-end needs with arena-ready authority.
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The definitive evolution of Boogie bass dominance
Mesa/Boogie’s legendary Bass 400+ has seen front-line action as the backline of choice for superstar bassists like Paul McCartney, Stanley Clark, Bootsy Collins, and many more. Sweetwater's vintage gearheads note that these workhorse tube amps still command premium prices in the used marketplace — if you can find one. Since the 400’s glory days, Mesa/Boogie has produced many fine tube-driven MOSFET designs, but the ascendency of Mesa’s renowned Class D circuitry has today given us the superb Subway range.


Features and flexibility today’s top bassists demand
Delivering punchy, epic Bass 400 tube tone, along with 2-channel flexibility, brawny Class D power, and lightweight, streamlined portability, the Subway TT-800 gives you everything you want in a modern bass amp. The TT-800 rocks both a classic Boogie Channel preamp and a Subway Channel preamp feeding Mesa’s acclaimed 800-watt, 2-ohm-compatible Class D power section into a bass amplifier head packed with the features and flexibility today’s top bassists demand.
Mesa/Boogie Subway TT-800 Features:
- Dual-channel design featuring a preamp section with Tri-Tube topology driven by 12AT7 tubes
- Clean and clear Class D power section, delivering 800W at 4 or 2 ohms and 400W at 8 ohms
- Boogie channel offers a rich and classic-sounding voice to balance against the modern clarity of the Subway channel
- Per-channel tone-shaping sections include a 3-band EQ with enhanced midrange controls, Gain, Highpass, and Master Volume
- Deep switch makes it a breeze to trim boomy low end or fill out an anemic signal
- Bright switch sharpens your signal’s clarity
- High-/Low-gain switch offers powerful dirt-shaping control
- Global O/D Symmetry control offers a variety of distinct overdriven tones, from symmetrical to asymmetrical clipping and everything in between
- Handy protection and limiting LED indicators
- Tube-driven, post-master, balanced XLR DI output with Line/Mic and Ground Lift switches
- Tube-driven, pre-EQ, balanced XLR DI output with Line/Mic and Ground Lift switches
- 2 channel-independent, fully buffered series FX Loops
- Rear-panel Tuner Output with front-panel Play/Mute switch
- External footswitch jack for Tuner/Mute and Channel Select (footswitch available separately)
- Headphone output; auxiliary input; USB power outlet
- 2 speakON speaker output jacks
- Rugged and lightweight fan-cooled chassis
- Handcrafted in Petaluma, CA
