Barefaced Bass - Ultra lightweight high power bass guitar speaker cabinets

Handmade British 1 x 10" AVD guitar loudspeaker cabinet from Barefaced Audio

It’s a single 10” driver with a bigger warmer tone than a closed-back 1x12” but the room-filling clarity and air of an open-backed cab. It’s so light it weighs less than a guitar in a case and so small it’s almost airline hand luggage!

The standard speaker is a Celestion G10 Vintage and you can choose from silver or black cloth grills and British Raging Green or Black In Black tolex. And if the G10 Vintage isn’t the tone you want then you can choose to have literally any Celestion 10” guitar speaker in the Upsetter 110.

Upsetter 110

Upsetter 110
Upsetter 110

Regular price £349.00 £449.00 Sale

Celestion G10 Vintage fitted as standard

Barefaced Upsetter 110 Guitar Loudspeaker Cabinet

All prices include shipping to wherever you are in the world - select your region to see the correct price for you!

Current time to dispatch? Click here to check our production lead times page!

Normal delivery times listed below - there may occasionally be delays outside our control:

Next working day delivery: UK & USA (lower 48 states)

3 working days delivery: Europe, Canada, Alaska, Hawaii

5 working days delivery: Australia, New Zealand, Japan, Rest Of The World.

Please ensure we have your best contact email address and telephone number to avoid customs delays at international borders.

One month trial period:

If you’re anywhere within Europe (including the UK obviously) we have a one month trial period. In the unlikely event that you don’t like the cab you just have to pay the return shipping (we can arrange that if you’re in the UK) and you get a full refund. Before returning anything, please ask for advice if the cab isn’t doing what you want - we know our cabs better than anyone and will help you get the best out of them!



Stock - G10 Vintage Custom - Min/Alt
(H x W x D)
33.5cm x 38cm x 28cm
14" x 15" x 11"
Weight 6 kg / 13 lbs 5 kg / 11 lbs (Ten30)
Driver Celestion G10 Vintage Four other Celestion tens to choose from
Enclosure design AVD
RMS power handling 60W RMS 30W RMS (Greenback/Ten30)
Nominal Impedance 8 ohm 16 ohm


  • • 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 10" speakers. Celestion G10 Vintage 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.


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.

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.

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

You see it when you look at the back of the cab - it’s the Augmented Vent Diffractor. It’s a unique Patent Pending 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.

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.

Cosmetic Customising

Baffle Colour

Grill Cloth