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Mesa Boogie Subway+ Bass DI-Preamp II Pedal

Mesa/Boogie Subway+ Bass DI-Preamp II (Black) | Haggerty's Music

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Unlock legendary MESA tone and massive flexibility in a compact, pedalboard-friendly footprint. Available now at Haggerty’s Music, the Mesa/Boogie Subway+ Bass DI-Preamp II combines the best elements of the acclaimed Subway amplifier series into an all-in-one tone shaping tool. Whether you are laying down tracks in the studio, practicing silently at home, or touring the world, this feature-rich DI-preamp delivers premium bass sound without the clutter.

Legendary MESA Heritage, Reimagined for Your Pedalboard

Building on the foundation of the world-class Subway® D-800™, D-800+, and D-350 amplifiers, this second-generation DI-preamp condenses premium MESA engineering into a chassis that is 35% smaller than its predecessors. This is the ultimate "amp-in-a-box" and a reliable micro-sized backup rig that slides easily into your gig bag.

Powerful Tone Shaping Without the Complexity

Designed to easily adapt to both active and passive basses, the Subway+ Bass DI-Preamp II features an extended-range J-FET preamp circuit. Craft your signature sound using the intuitive variable Voicing control—shifting smoothly from a flat, modern response to a warm, vintage scoop.

Take surgical control over your mix with a fully active 4-band Baxandall EQ, featuring sweepable semi-parametric Low-Mid and High-Mid frequency bands. Block headroom-robbing sub-sonic rumble with the award-winning variable Hi-Pass Filter, or instantly inject punch using the dedicated Deep and Bright switches.

Versatile I/O for Studio, Stage, and Home

From the bedroom to the arena, the Subway+ II has your back:

  • Practice Anywhere: Plugin a media player via the Aux Input and practice silently using the dedicated Headphone output.
  • Pro Direct Out: Deliver iconic MESA tone straight to front-of-house or your recording interface via the studio-grade, balanced XLR Direct Output (complete with Pre/Post EQ and Ground Lift switches).
  • Flexible Routing: The 1/4" Preamp Output supports both unbalanced (TS) and fully balanced (TRS) lines, offering enough clean signal level to drive any pro-audio power amplifier.

Technical Specifications

  • Preamp Heritage: Derived from the renowned Subway D-350, D-800, and D-800+ bass amplifiers
  • Input Stage: Single 1/4" Instrument Input with Active/Passive toggle compatibility
  • Gain & Level Controls: Input Level (Gain), Boost Level, and Master Output Level
  • Footswitches: * Mute Footswitch: For silent tuning and instrument changes
    • Boost Footswitch: Variable, foot-controllable volume jump for solos or heavy passages
  • Tone Enhancement Switches: Deep Switch (low-end enhancement) and Bright Switch (top-end sparkle)
  • Filters: Variable Hi-Pass Filter (sweepable from 30Hz to 150Hz)
  • Voicing: Variable Voicing Control (seamlessly blends from Flat to Vintage Scoop)
  • Equalizer: Fully Active 4-Band EQ (+/- 12dB of Bass, Low-Mid, High-Mid, and Treble)
  • Frequency Sweeps: * Low-Mid Sweep: Variable from 150Hz to 1800Hz
    • High-Mid Sweep: Variable from 300Hz to 5000Hz
  • Audio Outputs: * Line Level Preamp Out: 1/4" TS Unbalanced or TRS Balanced
    • Direct Out: Balanced XLR Mic Level DI with Pre/Post EQ and Ground Lift switches
  • Practice Connectivity: 1/4" or 1/8" Aux Input and Headphone Output for silent practice
  • Power Requirements: Powered by DC power supply (9V to 18V, accepts either polarity)
  • Dimensions: 2.25” H x 6.00” W x 4.25” D (57mm x 152mm x 108mm)

Why Buy From Haggerty's Music?

At Haggerty's Music, we are proud to be an authorized Mesa/Boogie dealer. When you buy from us, you get guaranteed authentic gear, expert advice from real musicians, and top-tier customer service. Upgrading your bass rig has never been easier.

Order your Mesa/Boogie Subway+ Bass DI-Preamp II today and elevate your low-end tone!