Upsetter 110 / 112N

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.

And if you'd like a bigger 1x10" cab, either to look good under a larger amp head or for the even bigger tone made possible by a larger enclosure, you can instead choose a custom Reformer 110W.

We also have an unique option of fitting a custom-made Upsetter cab with one of Celestion's neo 12" drivers - yes, a 12" will (only just!) fit into this tiny cab. If you'd like to choose this customisation then you can select it in the "Impedance and Speaker Configuration" drop-down. You'll need to also select your neo 12" driver and add that to the cart - there's a choice of the Neo Creamback, Neo V-Type and Neo 250 Copperback.

Specifications

Features

• 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.

Questions

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 Upsetter 110 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 patended 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

28/05/25 - Upsetter 112N (Neo Copperback) - NZ

20/05/25 - Upsetter 110 (G10 Creamback) - USA

I got the cab- I LOVE IT!

Thanks to everyone

Dan

06/05/25 - Upsetter - UK

The Upsetter is in my opinion the best guitar cab ever made.

Dan

17/01/25 - Upsetter 110 - UK

The cab is here and sounds brilliant

I am very pleased

Best wishes to you, Alex, and the gang.

p.s you realise this is my THIRD barefaced cab !!!!

Mike

07/01/25 - Upsetter - UK

I have the Upsetter Barefaced AVD cab with an 8 ohm speaker. I had a quick question about the speakon jacks:  I have 2 amplifiers both of which output to 8 ohms. I wanted to know if I could plug both amps into the cab so that I don't need to switch a cable between each amp. I would not have both amps on at any time. I think this is a definite no but I thought to ask rather than assume. 

Jacob

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Hi Jacob,

I wouldn't recommend plugging both amps in at once because even when one is switched off its output stage will have the voltage from the other amp's output stage applied to it - and I doubt that will end well... Hope it's sounding good!

Best regards,

Alex

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Hi Alex,

No problem!  I figured but better to ask than to do something stupid

Love it. Best cab I've had.

Best

J

17/11/24 - Upsetter 110 - UK

Barefaced in action at Leicester O2 Academy last night. Mine, see attached, and The Ramonas!

Mark