Mesa/Boogie Subway+ Bass DI Preamp II Pedal

Compact Power – The Mesa Boogie Subway+ Bass DI Preamp II Pedal

The MESA Subway+ Bass DI-Preamp II is a compact, full-featured follow-up to our highly acclaimed “first edition” Subway bass preamp pedals. It combines the features of our original two preamp pedals into a single new model that features a simple, yet expanded feature set that provides all the tone-shaping tools you need (and nothing you don’t) to deliver the sound, feel, and response that has made the Subway Series market leaders in premium bass sound.

• World-class MESA tone and quality in our most compact Bass Preamp to date
• Pro tone-shaping features, yet simple, intuitive operation
• Preamp derived from the renowned Subway D-350, D-800, D-800+ Bass Amps
• Instrument Input (Active or Passive)
• Input Level Control
• Boost Footswitch with Variable Boost Level Control
• Deep Switch (enhances low-end)
• Bright Switch (enhances top-end)
• Variable Voicing Control (Flat to Vintage Scoop)
• Variable Hi-Pass Filter Control (30Hz to 150Hz)
• Fully Active 4-Band EQ Controls (+/- 12dB of Bass, Low-Mid, High-Mid and Treble) with Sweepable (variable) Low-Mid (150Hz-1800Hz) and High-Mid (300Hz-5000Hz) Frequency Controls
• Master Output Level Control
• Mute Footswitch
• Aux Input
• Headphone Output
• Line Level Preamp Outputs (Unbalanced or Balanced)
• Balanced XLR Direct Mic Level Out with Pre/Post and Ground Lift Switches
• Powered by DC, 9-18 volts, either polarity
• Great for silent/live practicing, recording sessions, and touring applications
• Compact size (2.25 inch [57mm] H x 6 inch [152mm] W x 4.25 inch [108mm] D) that fits into your gig bag’s accessory compartment

Building on the foundation laid by MESA’s acclaimed Subway D-800, Subway D-800+, and Subway D-350 preamps, this new DI-preamp model combines even more features in a 35% smaller format than the original models. The results deliver world-class MESA bass tone in a small, even more pedalboard-friendly package that’s perfect for home use, studio recording, and touring.

The Subway+ Bass DI-Preamp II’s musically rich architecture easily adapts to use with active or passive basses with the extended range J-FET preamp, while the Input Mute footswitch lets you mute the outputs for silent tuning. The Deep switch adds additional roundness, while a Bright switch adds bite and sparkle to the top end. The award-winning variable Hi-Pass filter blocks unwanted headroom-robbing sub-sonic frequencies, allowing precise tuning of the low end to the musical style, ensemble, or venue. Separate Gain, Boost (footswitchable), and Master Volume controls enable you to dial up a wide range of gain profiles from round, warm cleans to mild overdrive and everything in between.

The Variable Voicing control adjusts the overall response from a flatter character to a more vintage curve by modifying levels and frequency response in multiple regions with the turn of a single knob. The fully active 4-band Baxandall EQ features fixed high and low-frequency shelving controls, as well as variable frequency Low Mid and High Mid bands for added surgical shaping of the sound.

For practice at home or anywhere, the Subway + Bass DI-Preamp II’s Aux Input and Headphone output jacks let you listen to a media player and your bass simultaneously without disturbing others. The Preamp Output can be used as either a ¼ inch (6.35mm) TS unbalanced or ¼ inch (6.35mm) TRS fully balanced output, and provides ample signal level to drive any pro audio amp to the rated output. A full-featured mic-level balanced XLR direct output (DI) with pre/post EQ and ground lift is included, delivering iconic MESA tone to the front-of-house, monitor, or recording audio interface.

With its ideal combination of small size, light weight, and stellar tonal flexibility, the Subway+ Bass DI-Preamp II is a powerful on-the-go tool for great bass tone in sessions, feeding PA and/or backline in small to mid-sized venues, or as a micro-sized “backup amp” to carry in the gig bag for emergencies.

SPECIFICATIONS

General

• Available Formats: pedal
• Weight: 1.65 lbs. | 0.75 kg

Dimensions

• Height: 2.25 inch | 57mm
• Width: 6 inch | 152mm
• Depth: 4.25 inch | 108mm

Foot Switchable Functions

• Functions: mute and variable boost

Mode Voicings Styles

• Voicing: variable voicing (flat to vintage scoop), fully active 4-band EQ plus deep and bright switches (for enhanced low and top-end)

Manufacturer: Mesa Boogie
Model: FP.SBDI
SKU: I840674-N-0-WHXA
UPC: 809404008618

We are Chuck Levin's Washington Music Center

Since 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.

Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.

Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.