The Ampeg B-25 is a classic 55-watt all-tube bass head that captures the golden era of Ampeg tone. While often considered the smaller sibling to the SVT, the B-25 offers a more manageable volume level that is perfect for studio recording and club dates. It delivers a warm, round, and harmonically rich sound that breaks up beautifully when pushed, making it a favorite for players who want vintage tube grit without the deafening volume of a 300-watt rig.
This 1973 model has been recently serviced by our in-house electronics wizard and is in excellent working condition. The internal circuitry has been thoroughly checked to ensure it is running safely and efficiently, with all necessary components brought up to spec. These amps are known for their incredibly simple but effective two-channel layout, allowing you to dial in everything from deep, pillowy lows to punchy, articulate mids.
Cosmetically, the amp shows the honest character you would expect from a 50-year-old piece of professional backline. The chassis, Tolex, and faceplate are all in good shape. Whether you are a bassist looking for the ultimate recording amp or a guitarist looking for a unique high-headroom pedal platform, this B-25 is a fantastic example of American-made Ampeg history.
Specifications – Year: 1973 – Model: B-25 – Power Output: Approx. 55 Watts – Tubes: 7027A Power Tubes – Channels: Two (Instrument and Bass) – Controls: Volume, Treble, Bass, and Ultra-Hi/Ultra-Lo Switches per channel – Outputs: 16 Ohm and 8 Ohm Speaker Outs (Requires Ampeg-specific wiring/adapter for some vintage cabs) – Condition: Very Good. Recently professionally serviced; fully functional; vintage cosmetic wear consistent with age. – Included: Attached Power Cable.
About Us + Shipping Every amplifier we sell has been professionally tested and serviced by our technician to ensure it is fully functional and safe for use. We pack each order with care and ship promptly. Mill River Music is a full-service music store located in Western Massachusetts. We are proud to offer new, used, and vintage gear, plus repairs and friendly advice. International buyers are welcome - please message us for an accurate shipping quote before purchase.
