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Mesa Boogie Subway TT-800 Valve Bass Amp Head

Written by

Elliot Stent

Mesa Boogie are well-known for their high-end electric guitar amplifiers, but their feature-packed bass amps deliver the same level of premium performance - letting professional bassists get in on the action! Used by a number of high-profile touring musicians, Mesa Boogie bass amplifiers are extremely flexible and offer divine low-end tones.

The lightweight Subway TT-800 is arguably one of Mesa's finest bass amps to date. Featuring two ultra-versatile channels and a valve-powered preamp stage, the TT-800 covers a lot of sonic territory and delivers the unmistakable feel and rich harmonic content that only tubes can provide. With a portable design making it incredibly practical, the TT-800 can also be configured in multiple ways thanks to its abundance of connections.

2-Channel Design

Two channels feed the Mesa Boogie Subway TT-800's muscular and articulate 800-watt Class D power section - creating the ideal foundation from which to build the ultimate bass tone.

Channel 1 (Boogie) is based on Mesa's iconic Bass 400 amplifier; a large tube-powered beast used by some of the best in the business. Taking the same tone-stack architecture, the TT-800 dishes out the blooming tube character that's perfect for rock! The second channel (Subway) is voiced to produce a more modern tone by tightening the bottom-end and accentuating the highs - perfect for slap playing and articulate lines.

Dual Effects Loops

It's worth noting that each channel features its own dedicated effects loop. This means that you can place certain external effects in each channel depending on which of their tonal characteristics are more suitable, or choose to use pedals with one channel to create a "wet" and "dry" setup that allows you to engage effects by simply switching channel. The choice is yours!

Unparalleled Tone-Shaping

A host of EQ dials and switches allow you to precisely sculpt the sound of each channel. With independent 4-band EQ sections, you can shape each channel to sound completely different - essentially giving you two bass amps in one.

The 'Tri-Tube Topology' section features switches that influence the overall sound of the amp. The 'Deep' and 'Bright' switches introduce extra low-end and treble bite respectively, while the 'High/Low Gain' switch affects the input sensitivity - so you can compensate for low or high-output pickups.


  • Wattage: 800 Watts @ 4 or 2 Ohms / 400 Watts @ 8 Ohms
  • Power Amp Type: Light-Weight Class D Power Amp & 8/4 or 2 Ohm Impedance Switch
  • Preamp: Two Channels, Class A Vacuum Tube Preamps w/ 3x Mesa 12AT7
  • Global: Deep Switch, Bright Switch
  • Channel One: Boogie Channel features: Variable High-Pass Filter (25Hz – 125Hz) and Active Driven Passive 3-Band EQ (Bass, Mid with variable Mid-Shift Control, Treble)
  • Channel Two: Subway Channel features: Variable High-Pass Filter (25Hz – 125Hz) and Fully Active 3-Band EQ (+/- 12dB of Bass, Mid & Treble) with Sweepable (variable) Mid Frequency Control (150Hz-2000Hz)
  • Footswitchable Functions: External Switching Jack for Channel Select & Tune/Mute (Footswitch Sold Separately)
  • Weight: 7 lbs. 3 oz.
  • Dimensions: 4" H x 12" W x 11.375" D
Inc. VAT


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