Barefaced Bass - Ultra lightweight high power bass guitar speaker cabinets

Reformer 112 / 110W

Regular price £399.00 £599.00 Sale

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Celestion Vintage 30 fitted as standard. Add your cab to the cart first, then click here for custom speaker
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We believe this is the most significant guitar cab launched since the original Marshall 4x12”. A bold claim indeed!

But listening is believing - the revolutionary patented AVD enclosure lets you hear the true sound from the speaker, uncluttered by internal reflections or cancellations like traditional closed or open-backed cabs. And from the back of the cab the AVD does even more, filling the room with yet more natural tone.

We may have transformed the cabinet itself with our unique Barefaced AVD design but we refuse to discard the loudspeaker heritage that’s the basis of most great guitar sounds - electric guitars need that tonal shaping, character and vibe which comes from the inherent sonic colour of classic speaker designs. The Reformer 112 has an iconic Celestion Vintage 30 12" 60W loudspeaker as standard and more cosmetic choices. And if the Vintage 30 isn’t your ideal sound, you can have any Celestion guitar 12” as a customisation, including all the Alnico models.

We now also offer a custom 1x10" version of this cab, the Reformer 110W - for guitarists who want the tone of a 10" but in a larger enclosure than our Upsetter 110. Also, if you want a wider/larger 1x12" guitar cab, we now have the Usurper 112W and the Radical 112SW custom models to choose from, which are the same sizes as our 2x10" and 2x12" models respectively.

This 1x12” cab has as big a sound as 2x12" cabs loaded with similar speakers because the AVD uses both sides of the cone, front and back, to fill the room with tone. Despite the massive sound the weight is absolutely not massive - thanks to our unique design and construction methods this is the lightest gig-tough 12” guitar enclosure ever made!


Stock - V30

Custom - Minimum Custom - Maximum
(H x W x D)
40cm x 45cm x 31cm
16" x 18" x 12"
Weight 10 kg / 22 lbs 7 kg / 15 lbs (Neo Creamback / Copperback)
Enclosure design AVD
RMS power handling 60W 25W (G12M Greenback) 250W (Neo 250 Copperback)
Nominal Impedance 8 ohm 4 ohm (Neo 250 Copperback only) 16 ohm
Stock speaker Celestion Vintage 30 20+ Celestion twelves as custom choices Or unloaded for a 12" you already own and love


  • Innovative internal design - Barefaced AVD enclosure for superior audibility, efficiency and power handling
  • Low-cut filter toggle switch
  • Choose from the entire range of Celestion 12" speakers. The iconic Celestion Vintage 30 fitted as standard.*
  • Either a black or silver cloth grill with white piping.
  • British Raging Green or Black in Black tolex.
  • Single top strap handle
  • Rubber feet on base
  • Dual combi 1/4” + speakon sockets

*Additional customisation fee applies. See below.


Traditional guitar loudspeaker designs.

There are basically two sorts - closed-back and open-backed. Open-backed because they were combos and needed to keep the valves cool and accessible for servicing, closed-back and sealed because that’s how most speakers were made in the 1960s.

How does that affect using them?

The closed-back cabs have narrowing dispersion as frequency increases (a hi-fi speaker uses smaller speakers for higher frequencies to reduce this problem). The open-backed cabs fire sound out of the back as well as the front, so although the dispersion narrows from both front and back in much the same way as the closed-back cab, the sound coming out of the back helps fill the room with mids and highs - but that sound out of the back cancels out most of the lows (due to the inverted phase as the back of the speaker pulls when the front pushes and vice versa). In other words, open-back cabs are easier to hear around the room but the lows are thinner.

How is the Reformer 112 different?

From the front it behaves much like a closed or open-backed cab. But the mids and highs coming out of the AVD at the back are amplified and dispersed around the room whilst the lows are inverted to match the lows from the front, giving lots more bottom. Basically you get twice the output of a closed back cab with an identical speaker AND even better dispersion and audibility (and far far greater output) than an open-backed cab.

What is AVD?

You see it when you look at the back of the cab - it’s the Augmented Vent Diffractor. It’s a unique patented technology that we started developing back in 2013. At low frequencies it acts as a tuned vent or Helmholtz resonator, improving efficiency, power handling and output. At mid and high frequencies it acts to diffract, disperse and couple the sound with the room for improved audibility and output especially in rooms with poor acoustics.

What is the Lo Cut filter for?

The increased low frequency output from the AVD may be too much for some guitarists’ tastes - so you can flick this switch and remove lows at the cab. Doing so not only changes the bass response but also increases the power handling of the cab, lowers the distortion due to motor excursion and reduces the load on your amp’s output stage. This can give you two different sweet-spots of optimum speaker overdrive or break-up and two different sweet-spots of power valve overdrive. If your sound is perfect in rehearsal but too dirty at a louder gig then engaging the Lo Cut filer will clean it up.

Customer feedback

11/01/24 - Reformer 112 - Australia

Hi Alex,
Thanks for your reply.
I'll give your workshop maestro's a little more work to do shortly once I put my order in for a One10 cab.
See below a baby snap of my/our most recent amp cab progeny. Thanks to you and yours for all that you do.
Alex says:
Hi Dave,
I've just realised that's on a desk - I was so confused!
Looks great.

23/01/24 - Reformer 112 - France


Hi Alex,

Very much loving the the Reformer 112 You made for me last year.

I ordered it with the default Vintage 30 driver. I'm now thinking of swapping the driver out for a Creamback G12H-75 which increases the headroom and possibly sounds even better while (somewhat miraculously) still managing a 100dB sensitivity. Although this has a bigger magnet (according to the Celestion website) there appears to be enough clearance to the edges of the AVD sonic wondrousness and the back of the cone would be in the same position WRT to the resonator/horn and so presumably in practice, this is a straight swap?

Please keep making the YouTubes, I find them fascinating.


Alex says:

"Hi Jon,

The H75 is a great driver but definitely not an improvement on the V30, just a different tone. They have the exact same (big) magnet too. It's quite a popular choice as a custom driver in our cabs, we've done plenty of demo videos comparing them so you can have a listen on our youtube. Any Celestion ceramic or neo guitar 12" is a straight swap. Glad you're loving the cab!"


04/12/23 - Reformer 112 - Australia

I've been very much enjoying getting to know my Reformer 112 since I took delivery just before xmas 23.
Nice timing for this special xmas present, sweet little cab!
Pairs very nicely with my Friedman Runt 20 and I want to say it has exceeded my expectations. Thanks and Happy New Year Alex and your Barefaced team of artisan cab ninja's.
Dave A

04/01/23 - Reformer - UK

Well enjoying my Reformer. Fantastic 🙂🤘


18/12/23 - Reformer 112 - Germany

I bought my Reformer 112 by my own decision with a Neo 250 Copperback. My guess was, that a neutral speaker offers amp and guitar the most space for their own voice.
It turned out to be a worthwhile selection. I compared the 1×12 with my Hughes & Kettner 412 Statesman (loaded with V30s) and a 2×12 BluGuitar TwinCab (loaded with custom made for BluGuitar drivers). The small 1x12 had the richest by frequencies sound, and it sounded full.

20/09/23 - Reformer 112 - UK

Just wanted to let you know we have received the cab and it’s in perfect condition.

In fact Jake and I thinks it looks fantastic and sounds amazing. Thank you so much for all your help, answering all my emails and patience with me.



21/11/23 - Reformer 112 - UK

We are using Barefaced bass cabs and Barefaced guitar cabs we are delighted with them thanks Alex


28/6/23 - Reformer 112 (Classic Lead 80) - USA

Thanks for these awesome speaker cabs!!