Blackstar Unity 250act 250W Active Extension Bass Cab (pre-owned)

Condition: Very good. The cabinet has some marks and small tears in the vinyl covering, but nothing major.

The Blackstar Unity U250ACT Active Bass Cabinet expands your bass rig with an additional 250 watts of pure, stage-ready power. Designed to perfectly complement any Unity Pro Bass combo or head, it delivers exceptional tone, clarity, and projection in a compact, portable enclosure.

Developed from extensive research and inspired by classic bass amplification, the Unity Series was designed by bass players, for bass players — ensuring a straightforward, musical response that fits any style or setup.

Main Features

• 250 Watts of active power
• Custom-designed 15" Eminence Opus speaker for deep, articulate low-end
• Independent volume control for flexible onstage mixing
• Combined XLR + ¼” input for external preamps or other audio sources
• Passive ¼” input allows use as a standard extension cabinet
• XLR through output for chaining multiple Unity Active Cabinets

Extend Your Setup

Take your rig to the next level — the U250ACT adds 250 watts of additional stage power to any Unity Bass Combo. Whether you’re performing in small venues or large stages, this active cab ensures your tone stays consistent, powerful, and defined.

Link multiple U250ACT units together for a modular system that grows with your needs. Perfect for rehearsals, live shows, or studio environments.

Specifications

• Power Output: 250W (Active Cabinet)
• Speaker: 1 x 15" Custom Eminence Opus Speaker
• Inputs: Active XLR / Passive ¼” Jack
• Outputs: XLR Cabinet Link Thru
• Dimensions: 485(W) x 593(H) x 361(D) mm
• Weight: 19.5 kg

Professional Sound, Compact Design

Like the rest of the Unity range, the U250ACT is built for tone, durability, and flexibility. The custom Eminence Opus speaker was designed in partnership with Eminence, ensuring precision low-end response and the ability to handle modern bass tones with authority.

Its robust construction and compact footprint make it ideal for gigging bassists who need reliable, portable stage power without sacrificing tone.