The Subway Evolution. Boogie® Bass Returns!
The all-tube Boogie® BASS 400+ was a modern-day classic used by the world’s most talented bassists for over two decades. From Paul McCartney to Mark King, Stanley Clark to Jack Blades and Michael Anthony, the 400+ crossed borders and musical genres to take center-stage behind true Icons during its 20-year build cycle.
Today it’s our award-winning Subway® Series taking names with accurate Tone, warmth and portability in the Class D realm. The evolutionary step forward beckons to combine these two distinctive preamps and create a powerful, portable way to feature their unique personalities in one package. The Subway® TT-800™ answers that call!
Tube Bloom or FET Punch & Detail, It's All Yours On Demand!
Two Separate Channels in a Dual Mono configuration feed the Subway® TT-800™'s muscular, articulate 800-Watt Class D power section and create the foundation from which to build your ultimate Bass Tone.
The TT-800 features an all-new tube driven preamp allowing bassists to experience the rich, blooming tube character of the legendary tone stack architecture from the Bass 400+ in the Boogie® channel or the modern tone of the award-wining Subway Channel with enhanced tightness in the low end, accurate punchy mids and crystal clean highs. These Channels can be used to switch between (Foot Switch optional) for different responses and sounds with one Instrument, or dedicated to separate Instruments with different characters and needs.
With our patch-point style independent Effects Loop design, you can also choose to run independent processing for each Channel/Instrument or substitute a favorite external preamp or modeler for one of the switchable Channels.
VINTAGE ENHANCED AND MODIFIED MODERN CREATE HARMONY
The top BOOGIE® Channel, featuring our storied Bass 400+ signal path, breathes and blooms with 3-D tube warmth and includes new improvements like the Subway’s HIGHPASS, and a semi-parametric control for the MID frequencies, which adds immensely to the versatility of an already epic sound.
The lower SUBWAY® Channel provides everything the modern bassist could want; articulate, nuanced detail served up with immediacy and authority in a tighter tracking, more neutral character and now features a tube preamp.
Modern feature packed, the TT-800’s DEEP and BRIGHT switches add tone shaping opportunities and allow for taming “boomy” rooms by switching DEEP off or kicking it in for styles such as Reggae. BRIGHT adds sparkle and sheen and Subway fans have been known to use the feature for advanced techniques such as slapping and adding dimension and clarity to chordal work.
Global GAIN switching allows for custom configuration of attack and headroom characteristics. LOW provides a clean, clear sound in comparison to the HIGH setting that ramps up driving the tubes and is especially notable in the Boogie Channel. A New OD (Overdrive) SYMMETRY control features tightly-glued harmonics toward the (counterclockwise) (SYM) extreme or a looser, more tube-like harmonic spread in the ASYM (clockwise) half of the control.
Specifications
Quick overview
Quick overview
available formats: (Metal) Head - Rackmount Kit Optional
dimensions: 4 H x 12 W x 11.375 D
Foot Switchable Functions: External Switching Jack for Channel Select & Tune/Mute (Footswitch Sold Separately)
graphic eq reverb fx solo: 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)
power tube type: Light-Weight Class D Power Amp & 8/4 or 2 Ohm Impedance Switch
wattage: 800 Watts @ 4 or 2 Ohms / 400 Watts @ 8 Ohms
weight: 7 lbs. 3.oz.
Features
Features
amp type: Tube Preamps & Class D Power Amp
cabinet simulation direct liverecording output: 1x Tube-Driven, Post Master, Balanced XLR (DI) Out with Line/Mic & Ground Lift Switches / 1x Tube-Driven, Pre-EQ, Balanced XLR (DI) Out with Line/Mic & Ground Lift Switches
chassis material: Aluminum
convection or fan cooling: Fan Cooled
effects loop bypass options: Two Fully Buffered, Channel Independant Series FX Loop
external switching jack options andor midi: External Switching Jack for Channel Select & Tune/Mute (Footswitch Sold Separately)
extra features: USB Power Outlet, Headphone Output and Auxiliary Input, Optional Two Space Rackmount Kit Available (sold separately)
power amp details class wattage: Light-Weight, Compact Class D Power Amp with Variable O/D Symmetry Control, Protection, Limit LED Indicators
power amp tubes: Class D Power Amp
preamp tubes: 3x Mesa 12AT7
speaker outputs: 2 - Speakon Output Jacks (no 1/4 speaker jacks) - 8, 4 or 2 Ohms
tuner output: Tuner Output (back panel) with Play/Mute Switch (front panel) and External Mute Switching Jack (back panel) - See Footswitch in the Accessories Section for additional options
wattages quick reference: 800 Watts @ 4 or 2 Ohms / 400 Watts @ 8 Ohms
Cabinet features
Cabinet features
Accessories
Accessories
footswitch: Optional (Sold Separately) - 2 Button Channel Select & Tune/Mute Footswitch
slip cover: Included - Gig Bag with Shoulder Strap
Weights and dimensions
Weights and dimensions
depth: 11.375
height: 4
weight: 7 lbs. 3.oz.
width: 12
Model: 6.TT8X.UK
Mesa/Boogie Subway TT-800 Bass Amp (Metal Head), UK,
Mesa/Boogie Subway TT-800 Bass Amp (Metal Head), UK,
Free Shipping
Free Shipping
Orders placed by 1PM (UTC/GMT + 1 hour) Monday-Friday (excluding holidays) will ship the same day. Orders placed after this cutoff will ship the next business day. All orders over £50 or €50 receive free shipping.
Limited Warranty
Limited Warranty
Shop and play with confidence knowing that your amplifier is protected by our limited 5-year warranty. Learn more about warranties and exclusions here .
Hand-wired in California
Hand-wired in California
Every MESA/Boogie amplifier has been hand-wired in the same Petaluma, California, facility for more than 45 years.
Three Free Months of the Gibson App

Three Free Months of the Gibson App
For a limited time only, receive a three-month subscription to the Gibson App for free with the purchase of this product. Click here to learn more about the Gibson App.
The Subway Evolution. Boogie® Bass Returns!
The all-tube Boogie® BASS 400+ was a modern-day classic used by the world’s most talented bassists for over two decades. From Paul McCartney to Mark King, Stanley Clark to Jack Blades and Michael Anthony, the 400+ crossed borders and musical genres to take center-stage behind true Icons during its 20-year build cycle.
Today it’s our award-winning Subway® Series taking names with accurate Tone, warmth and portability in the Class D realm. The evolutionary step forward beckons to combine these two distinctive preamps and create a powerful, portable way to feature their unique personalities in one package. The Subway® TT-800™ answers that call!
Tube Bloom or FET Punch & Detail, It's All Yours On Demand!
Two Separate Channels in a Dual Mono configuration feed the Subway® TT-800™'s muscular, articulate 800-Watt Class D power section and create the foundation from which to build your ultimate Bass Tone.
The TT-800 features an all-new tube driven preamp allowing bassists to experience the rich, blooming tube character of the legendary tone stack architecture from the Bass 400+ in the Boogie® channel or the modern tone of the award-wining Subway Channel with enhanced tightness in the low end, accurate punchy mids and crystal clean highs. These Channels can be used to switch between (Foot Switch optional) for different responses and sounds with one Instrument, or dedicated to separate Instruments with different characters and needs.
With our patch-point style independent Effects Loop design, you can also choose to run independent processing for each Channel/Instrument or substitute a favorite external preamp or modeler for one of the switchable Channels.
VINTAGE ENHANCED AND MODIFIED MODERN CREATE HARMONY
The top BOOGIE® Channel, featuring our storied Bass 400+ signal path, breathes and blooms with 3-D tube warmth and includes new improvements like the Subway’s HIGHPASS, and a semi-parametric control for the MID frequencies, which adds immensely to the versatility of an already epic sound.
The lower SUBWAY® Channel provides everything the modern bassist could want; articulate, nuanced detail served up with immediacy and authority in a tighter tracking, more neutral character and now features a tube preamp.
Modern feature packed, the TT-800’s DEEP and BRIGHT switches add tone shaping opportunities and allow for taming “boomy” rooms by switching DEEP off or kicking it in for styles such as Reggae. BRIGHT adds sparkle and sheen and Subway fans have been known to use the feature for advanced techniques such as slapping and adding dimension and clarity to chordal work.
Global GAIN switching allows for custom configuration of attack and headroom characteristics. LOW provides a clean, clear sound in comparison to the HIGH setting that ramps up driving the tubes and is especially notable in the Boogie Channel. A New OD (Overdrive) SYMMETRY control features tightly-glued harmonics toward the (counterclockwise) (SYM) extreme or a looser, more tube-like harmonic spread in the ASYM (clockwise) half of the control.
Specifications
Quick overview
Quick overview
available formats: (Metal) Head - Rackmount Kit Optional
dimensions: 4 H x 12 W x 11.375 D
Foot Switchable Functions: External Switching Jack for Channel Select & Tune/Mute (Footswitch Sold Separately)
graphic eq reverb fx solo: 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)
power tube type: Light-Weight Class D Power Amp & 8/4 or 2 Ohm Impedance Switch
wattage: 800 Watts @ 4 or 2 Ohms / 400 Watts @ 8 Ohms
weight: 7 lbs. 3.oz.
Features
Features
amp type: Tube Preamps & Class D Power Amp
cabinet simulation direct liverecording output: 1x Tube-Driven, Post Master, Balanced XLR (DI) Out with Line/Mic & Ground Lift Switches / 1x Tube-Driven, Pre-EQ, Balanced XLR (DI) Out with Line/Mic & Ground Lift Switches
chassis material: Aluminum
convection or fan cooling: Fan Cooled
effects loop bypass options: Two Fully Buffered, Channel Independant Series FX Loop
external switching jack options andor midi: External Switching Jack for Channel Select & Tune/Mute (Footswitch Sold Separately)
extra features: USB Power Outlet, Headphone Output and Auxiliary Input, Optional Two Space Rackmount Kit Available (sold separately)
power amp details class wattage: Light-Weight, Compact Class D Power Amp with Variable O/D Symmetry Control, Protection, Limit LED Indicators
power amp tubes: Class D Power Amp
preamp tubes: 3x Mesa 12AT7
speaker outputs: 2 - Speakon Output Jacks (no 1/4 speaker jacks) - 8, 4 or 2 Ohms
tuner output: Tuner Output (back panel) with Play/Mute Switch (front panel) and External Mute Switching Jack (back panel) - See Footswitch in the Accessories Section for additional options
wattages quick reference: 800 Watts @ 4 or 2 Ohms / 400 Watts @ 8 Ohms
Cabinet features
Cabinet features
Accessories
Accessories
footswitch: Optional (Sold Separately) - 2 Button Channel Select & Tune/Mute Footswitch
slip cover: Included - Gig Bag with Shoulder Strap
Weights and dimensions
Weights and dimensions
depth: 11.375
height: 4
weight: 7 lbs. 3.oz.
width: 12
Model: 6.TT8X.UK



