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Blackstar U250ACT Unity Bass 250W 1x15 Active Extension Cab

Add 250 Watts of extra stage power to any Unity Combo!




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SKU: BA152010-H

    Product Description

    Blackstar have painstakingly researched what goes into creating the ultimate bass tone, putting their wealth of experience to the test while referencing some of the most iconic sounds in modern music history. The Unity Bass series was designed by bass players, for bass players!

    The U250ACT Active Cabinet can be connected to any model in the Unity Pro Bass Series to add 250W of active power to your rig; taking you from the studio or rehearsal room to the gig with ease and portability. The U250ACT can also be used standalone with external preamps, amp modellers or effects processors, and multiple U250ACT Active Cabinets can be linked together for near-limitless expansion of your setup.

    Key Features

    • Add 250 Watts of extra stage power to any Unity Combo with the the U250ACT 1x15” active cab.
    • Custom designed Eminence 15" Opus speaker
    • Independent volume control
    • Combined XLR + ¼" input allowing use with external preamps
    • Passive ¼” input for use as a standard extension cabinet
    • XLR Through to chain together multiple Unity active cabinets
    Sam Beattie author picture

    Written by Sam Beattie

    Number of Channels
    Speaker Size
    Trade Doubler Group ID
    Amp Type
    Solid State
    Custom Designed 15" Speaker
    Wattage Range
    100W +
    Effects Loop
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    Here at Andertons Music Co. we believe that we stock some of the best musical equipment in the world. That's why we want to make it as quick and easy as possible for you to get your order, safe and sound!

    We offer a wide range of delivery options to help fit around your busy lifestyle without compromise. This includes free, named-day delivery for most UK postcodes on orders over £99 which are in stock, Saturday & Sunday deliveries, and competitive delivery rates worldwide.

    Please note: Some UK postcodes including remote areas and Northern Ireland are subject to charges.

    You can find full details about the services we offer, including details on our international delivery charges, on our main delivery page. Click here to read more.

    Customer Reviews


    2 reviews





    Brian Hurrell1st Oct 2021

    I have paired this with a smaller Blackstar 30w Unity combo amp. The smaller amp sounds great on its own and is perfect for small gigs and practice, it is also very light. For larger venues the powered extension cab with 15" speaker provides added rumble and stage presence. Together this is a really flexible rig.

    Value 4Looks 5Durability 5Sound 5

    Mr John Watson17th Jan 2020

    Value 5Looks 5Sound 4

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    Andertons Music Company's Registered Office: 58-59 Woodbridge Road, Guildford, GU1 4RF. Andertons Music Company acts as a credit broker and not a lender and only offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance. Andertons Music Company is authorised and regulated by the Financial Conduct Authority. Credit provided subject to age and status.