Renowned for his work with Thin Lizzy, Whitesnake, The Dead Daisies, and SATCHVAI, Marco Mendoza is celebrated for his versatility, feel, and unmistakable stage presence. Having used the Debut Bass 25 from early prototypes, Marco quickly adopted it as his go-to backstage and home practice amp, valuing its tone, simplicity, and portability. The MM Debut Bass 25 brings his personal flair to the amp that supports his everyday playing.

Simple.
Powerful.
Debut Bass is the perfect choice for bass players looking for natural tone, no-fuss controls, and great feel.
Designed by the same team behind our award-winning guitar amps, the Debut Bass series offers pro-quality tone in a compact, easy-to-use package.
If you’re just starting out or and need a reliable amp for home or studio, Debut Bass is your go-to companion.
Just plug in and play.

Great Tone,
Instantly.
With a clean channel for warm, punchy tones and an overdrive channel for added grit and growl, the MM Debut Bass 25 makes it easy to find your sound fast.

Start Your
Journey Right
Jam along to your favourite songs via the Line In or get in some late night playing via the rich sounding headphone output.
All this in a compact and portable package that’s perfect for around the house or travelling.

Designed
For You
The MM Debut Bass 25 strips it back to what really matters – great tone, instant feel, and features that support your playing.
No menus. No distractions. Just plug in and enjoy.
A celebrated bassist with a career spanning Thin Lizzy, Whitesnake, The Dead Daisies and SATCHVAI, Marco brings unmatched versatility and charisma to every performance. Having used the Debut Bass 25 from early prototypes, he quickly adopted it as his go‑to backstage and home practice companion, citing its tone, simplicity and portability. Now, his personal touch comes to the amp that inspires his everyday playing.
- Artist signature version of Blackstar’s intuitive, analogue 25 Watt bass combo.
- Custom Marco Mendoza finish including Bird logo panel, bespoke tolex and fret cloth.
- Clean & Drive channels to cover smooth, warm tones through to gritty rock.
- 3‑band EQ provides powerful tone shaping.
- Line Out for silent headphone practice.
- Line In for jamming along to music or backing tracks.
- Compact, robust and ready for everyday playing.
- 1x 8″ speaker
- Weight – 8.5kg
- Dimensions – 350 x 370 x 250 mm
1 – All claims require a purchase receipt. It is the customer's responsibility to present it when making a claim.
2 – Except as stated below, in-store sales are final and items purchased may not be returned. By completing their transaction, the customer acknowledges that they have taken the item(s) in optimal condition.
3 – Guitars, basses, pedals, amplifiers, accessories, and tubes are not returnable. By paying for the item, the customer acknowledges that: (i) they inspected it and found it to be in optimal aesthetic condition without defects; and (ii) they tested it and it was functioning properly.
4 – All claims due to defects are subject to the manufacturer’s terms and conditions.
5 – Guitars, basses, pedals, and amplifiers will have a 30-day warranty. The electronics of guitars and basses will have a 90-day warranty. Guitars Boutique, at its sole discretion, will decide whether to repair, replace parts or components (with identical ones), and/or replace the item with an identical one.
6 – At the store's discretion, defective items may be exchanged for an identical item SUBJECT to the defective item being in the same condition as when it was acquired, including its original packaging with all its accessories. This will be done as store credit only. The credit does not apply to special orders or lay-away.
7 – All merchandise leaving the store will be considered as used in the future.
8 – No refunds will be given, regardless of the person.
9 – Special, clearance, or discounted items are not returnable.
Puerto Rico only.
In case of a return, the shipping cost will be deducted from the refund.
Guitars Boutique ships to PR via federal mail USPS, UVA, and iWide.
Estimated delivery time once the order has been shipped:
- Lightweight items, less than 14 pounds are shipped via USPS.
- Heavier items are shipped via iWide and UVA.
- No shipments are made on Sundays.
Guitars Boutique is not responsible for delays caused by shipping companies.
- The buyer is responsible for the care of their instrument/equipment against changes in temperature, humidity, and unstable current.
All guitars, basses, pedals, and amplifiers will have a 30-day warranty. - The electronics of guitars and basses will have an extended warranty of 90 days.
- Suppliers, who generally reserve the right to decide whether to repair, replace parts or components (with identical ones), and/or substitute the item with an identical one, at their sole discretion.
- Exchanges, if warranted (at the store's discretion) and if the product is in optimal condition (including its packaging), are for store credit only.
- Credits do not apply to special orders or lay-away.