Ashdown Studio UK-SBM-115-500 500W 1x15" Bass Combo Amp - Charcoal Tweed

The Guitar Center Exclusive Ashdown Studio UK-SBM-115-500 1x15" bass combo amp gives players a powerful UK-built platform with substantial low-end response and expandable output for larger rooms. It delivers 250W through its internal Sica NEO 15" speaker and reaches its full 500W output when paired with an additional 8-ohm cabinet, providing flexibility for practice, rehearsals, studio work and live performance. A 5-band EQ, switchable Pre-Shape, tube-emulated drive, balanced XLR DI, FX loop, headphone output, speaker mute and tweeter control give this 1x15" combo extensive control for a range of playing environments.

1x15" Speaker With Expandable 500W Output

The Sica NEO 15" speaker gives the UK-SBM-115-500 a full, weighty low-end response, while the tweeter adds high-frequency detail when additional top-end definition is needed. The combo delivers 250W through its internal 8-ohm speaker for standalone use; connecting an additional 8-ohm cabinet allows the amplifier to deliver its full 500W output for larger performance applications.

5-Band Ashdown EQ and Drive Character

The UK-SBM preamp centers on Ashdown's familiar 5-band EQ, with bass, Lo-Mid, middle, Hi-Mid and treble controls for detailed tone shaping. The switchable Pre-Shape provides quick access to a familiar Ashdown tonal contour, while the tube-emulated drive control moves from subtle warmth to more pronounced grit. Together, these controls provide a flexible foundation for shaping the amp around different basses, playing styles and performance environments.

Stage, Studio and Silent-Practice Connectivity

A balanced XLR DI output provides a direct feed for live sound and recording, while the FX loop integrates pedals or external processors through a TRS jack and Y cable. The headphone output mutes the speaker for quiet practice, while line input and footswitch connectivity expand the combo's everyday utility. Built in the UK and available as a Guitar Center Exclusive, the Ashdown Studio UK-SBM-115-500 combines a 1x15" Sica NEO speaker, expandable power and flexible tone shaping for practice, recording and live performance.

Ashdown Amplification Arrives at Guitar Center

Since 1997, Ashdown has built its reputation on powerful, road-ready amplification trusted by bassists on stages around the world. From its iconic Bass Magnifier amps and bass cabinets to pedals, guitar amplification and artist-driven designs, the family-run company has remained dedicated to giving players distinctive tone and dependable performance while renewing its commitment to UK-built craftsmanship. Guitar Center is proud to partner with Ashdown, bringing the brand’s celebrated amplification legacy to musicians nationwide.