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Customer Reviews

OX Amp Top Box

Overall Rating

101-120 of 190 Results

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S. Lauzon

November 27, 2019

Lots of issues.

I have the OX. I bought it about 7 months ago and it’s clumsy. Aside from the fact that you have to constantly switch WiFi to OX, then back to your router, even after you’ve set everything up! It’s ridiculous.

There’s been a update, which I was excited about briefly. Here’s why:

1. You need a usb flash drive to do this. It says you can do it over WiFi but not if you update the OX app first. My apps are setup for auto updates. So the firmware is incompatible and the app WILL NOT open because of this issue. I haven’t been able to open the app to change cabs or mics since nov 4th.

2. Customer service is awful. I’ve had a ticket out for 2 days now and no reply... nothing.

3. You may buy the wrong flash drive (as I did 2 times. Why two times? Well. It doesn’t say anywhere on the notes for the update which beans works. I’ve spent $30 and still can’t update firmware. The site says *try different one if not recognized. Yeah - cause I have lots of usb flash drives. They are almost obsolete....

4. If you have the issues I’ve had, it’s a glorified paperweight.

All of this is why I’m going to sell it at a 3-400$$ loss and go back to the easy to operate and use Mesa Cab Clone. I can’t honestly say I hear a 1000$$ difference anyway.

Sam L

G. Herrera

November 23, 2019

Faithful to this Unit

Having bought this when it first came out, I was really Loving what it did for my recordings, and now with the Update, OMG so Complete! I can get any tone I need Period! The ease of use just makes it fun and Inspiring, this is worth every penny and will never get rid of this Unit. Thanks UA

w. visbeen

November 17, 2019

No sleep but more than alive.

Bought the ox mainly for attenuator function. Speaker connector combo too short. While waiting for cable dived into the cab emulations and haven't slept since. Can't remember having had so much fun with my amp. Thank you so much!

K. Robinson

November 14, 2019

Awesome bit of kit!

Thank you for the new update!

I use the OX live all the time and having the footswitchable effects is brilliant now. I can now crank my amp (JTM 45) and get a volume boost for solos using the EQ on the OX. Super useful!

A. Walton

November 13, 2019

Epic bit of kit.

Absolutely love this , candy in my studio. The Nov 19 update is just glorious. Well done UA.

r. stepan

October 31, 2019

Wow we can use our 30 tube amps in our recording studio direct into Logic

This Ox sounds fantastic and we can dime our JCM 800’s and Silver Jubees Mesa
Orange etc and they sound fantastic. We use our FractalAxe Fx for some effects but
the cabs sims and UA quality is top drawer. Recording our clients without dragging out
a bunch of cabs is over...we do it all on theMac.
Fantastic piece of kit..great job guys....

J. Metzger

October 26, 2019


I am really impressed just wow ! I was skeptical at first but after using the ox to record some clean guitar i couldn’t believe how dynamic and easy the guitar was to control . This device is ahead of the heard if you ask me . There seems to be some sort of magic going on here , I can now record my guitar without second guessing myself because the ox makes it so easy to get a great tone and record in mono or stereo when I need without having to adjust a bunch of settings . You get the sound you like , hit record and you have professional sounding guitar tracks . Great job uad !! This paired with an Apollo is a match made in heaven .

C. Jérôme

October 19, 2019

incredible sound !!

j'ai trouvé LE son qu'il me manquait pour mon home studio avec cette machine extraordinaire . Tout les prises de sons guitares les plus efficaces ,avec les cabinets et micros les plus légendaires . La prise en main est d'une très grande simplicité et on va tout de suite a l'essentiel avec une redoutable efficacité !!
L'application sur mon iPad est superbe ,la connection excellente !!

O. Harkoma

October 14, 2019

Great tool for tube amps

I use this with my 87' Marshall 100W Silver Jubilee head, works and sounds great, only missing piece is really the V30 speaker model. Also tried it with small 20W Koch combo and it sounded completely crap with distortion, however pretty ok with clean channel. Seems like no one size fits all and perhaps you want to test with your tube amp before buying. I personally like the control over wifi, no issues using with iPad, Mac and now Windows also.

C. Holmes

October 5, 2019

Connection Woes

I find it insane that you can't connect the Ox to your computer via a USB or Firewire cord and have to rely on a wireless signal. The disconnections I kept encountering via the WiFi put me off on it entirely. I ended up returning it, which is a shame because I've been having a lot of problems with my Two Notes Torpedo Studio, which is the other loadbox I use, and was very hopeful that the Ox would be a worthwhile alternative. This is really a major design flaw that I'm stunned UAD hasn't done anything to address.

D. Nelson

August 15, 2019

It's absolutely amazing...for a specific audience

I've own this very well made, and fun to use load box. It's the guitar player's dream top box for studio, practicing, or even live shows if you know how to take care of it. I don't recommend taking it out on gigs because it is very fragile. I've owned this top box for over a year, and I can tell you what I think about it.

So my band "Ornimental" is a Hard Rock/Metal band that used this for our record we recorded and we got pretty great results...for anything besides heavier music. We used different cabs, and used a lot of the UA plug ins this came with. I thought it was really cool that they did that. Unfortunately, When it came to heavier tones, which my band uses most of the time, it just doesn't cut it. It's obvious that this was marketed to players that love tones that are more on the vintage side. There's really no way to get contemporary heavy tones with this box, and it's a little disappointing. I also heard the UA has no plans on adding any kind of V30, or other speakers that are good for the style, so that's a let down too. It's great for Rock, Country, Blues, Jazz, Funk, and any other style you can think of that doesn't require a lot of dirt. We got great results with other styles, but Harder styles just won't cut it here.

I'm sure that if I ever record with a different band thats a totally different style, this will do great, but the OX is made for vintage lovers and as much as I love vintage gear, I do need tones that are more modern and I feel like this would of blown away any other competitor.

I honestly believe that a V30 cab option would of been the answer to our issues. I'm not sure why the OX didn't come with it especially since it's arguably the most popular 12 inch guitar speaker ever aside from the Greenback. I've also heard that other people have asked if there will ever be an update with a V30 cab. That would be amazing!

It's an awesome piece of gear, but it's definitely not perfect. After some updates on a V30 option, and possibly more microphone options, I think it will be miles ahead of where it is now.

- Danny

S. Lauzon

June 16, 2019

Top Notch Top-Box

First off, this is a 5 Star item. I gave it four because if 2 simple things.
1.) you cannot be connected to the internet and the top box at the same time. The top box sends a WiFi-type signal you must connect to to make Cab/Mic adjustments. That’s kind of ridiculous. Almost everyone uses the internet on their pad while recording. It needs to be fixed.

2.) the options are limited where as TwoNote gives you 100’s of options.

So now with the cons out of the way. The sound is simply unmatched. The quality and ability this box performs with is, simply, amazing!

The little details UA took to make this thing look and feel amazing is brilliant. The ease of use is awesome (a little clunky) but when you need to make adjustments the window seams to close and you have to start over when switching between DAW and TopBox. I have found the missing piece and am thrilled to have it.

Please update cabs. Also plugs would be huge. It comes with a great limited plug but that’s really all it comes with - aside from a reverb and delay. It’s awesome still but could use some updates.

Sam L

r. seo

June 14, 2019

upgrade please

this is very usefull, I'm playing back on my VOX HWX1 and it is so pleasant.
BUT, it desyncrhonises in logic pro x while recording resulting in a crazy depitch digital noise... like a drunk DJ.
Otherwise, this is going to be really good when upgraded.

M. Music

June 10, 2019

Mediocre reactive load and no updates so far?

I've got the OX for over 14 months now and found out the impedance curve of the OX reactive load is based on a 'bathtub', not a real speaker cab as they claim, its similar to the Two Notes Captor load. It lacks the low resonance peak, so their is no low frequency amp response. For a 1300 euro load box you would expect more! As an alternative i use the OX now with the Suhr Reactive Load and OX load in parallel which makes my amp respond much better and makes the cab modeling sound better, especially with the 4x12 and 4x10 cabs.

No updates, no platform, no way to backup your presets. I gave them 3 starts when i bought it but now i give them 2 stars as its way overpriced for what you get in this box. The cab modeling software sounds great but a simple native plugin would do it for me as the load is mediocre and the IO limited.

m. pilsworth

May 20, 2019

Just what I have been looking for...would like ditch the ipad though

I use mine mostly for home recording and love it - the build quality inspires confidence and being able to overdrive at midnight without causing a riot with the neighbours is a dream come true. To me the sound quality is amazing and find the presets a great starting point for experimentation. Don't have too much of an issue with the lack of XLR as my Apollo Twin only has trs line inputs anyway. I have just started using a Windows based system and would very much like to ditch my ipad and hook up to my PC with USB though.

D. Panczykowski

May 9, 2019

Whoever invented this should receive a Nobel prize

Absolutely incredible and freakishly accurate. I had previously been utilizing Aaracom attenuators with vintage Marshall and Fenders, as well as Metropoulos and Alessandro heads . However, had to relocate to very small apartment for work and even 'bedroom level' was not going to cut-it. Refusing to give up the tone I strived my whole life to find, I bought the Ox and prayed it would be 'manageable' enough for 1-year.
I've now put this thing through its paces for 1-year and I am still blown away every day by the tone. I am currently running those same amps into the Ox, then into a small mixer (via stereo XLR), then into Bose headphones. I literally can't believe the quality of what I'm hearing. The sound is natural, alive, sensitive, dynamic, and without any loss of the amp's voice. This is a truly monumental accomplishment on par with the moon landing or at least Beauchamp/Rickenbacker mounting the first pick-ups on a guitar.

J. Henderson

May 9, 2019

Was essential...getting over it

It's cool, it's handy, it does the job. updates in forever. I'm getting bored with it. I miss speakers that move air into well-placed mics. I HATE the wifi/ipad aspect. Just let me connect via, you know, the USB port that does nothing. There's a lot of untapped potential. This could be an industry standard, but it seems UA has lost interest. Sad to say I am as well. Come on, UA...breathe some life into this thing.

A. Cerceau

May 5, 2019

Oui mais ...

J'ai l'impression que UA a juste laché un produit inachevé ..
Pas mal de point faible par rapport à la concurrence qui a effectué beaucoup de mises à jours
Pour moi voici les principaux point faibles :
- Clipping numérique avec certain amplis pourvu de beaucoup de headroom ( je pense aux amplis comme Two-Rock et cie )
- Aucun Cab fonctionnant bien pour du High Gain
- Échantillonnage limité à 48K ( c'est une blague ??? )
- Auncune mise à jours ( Non Universal Audio votre application est loin d'être parfaite )

Une Update est vraiment nécessaire ( je ne parle pas qu'en mon nom, dans mon entourage nous sommes beaucoup à regretter tous ses désagréments, j'ai même des amis qui repartent sur du Two-Note ou encore d'autre qui vont aller sur le Boss Waza Tube Amp Expander..

Universal Audio S'il vous plait, au lieu de dire que vous n'avez pas abandonné ce produit, faites quelque chose...

J. Woodham

April 28, 2019

Ox Amp Top Box

The ox is built like a tank with top quality components and sounds great .
iPad app works fine’ finding ox works okay .
....but would be great to be able to download UAD plugins so I had some choice to what I can use on the ox.
Really hope UA has updates for the future as now rival brand has brought out similar product with more functionality.
Might sound greedy but more cabs ‘effects’ and a choice to purchase plugins would be great.
In all a good start but with room for improvement if possible make usb function with a computer.
Sound quality five stars but given four because unsure about future updates/functionality .

R. Mohammed

April 27, 2019

Absolutely WOW!

Using the OX in conjunction with 60's Fender and 70's Marshall and Hiwatt heads. The tone is amazing right out of the chute. The speaker and mic modeling is very flexible so there is always a tone to be found. Works well with pedals and retains harmonics, which is the difference between a lifeless guitar sim and the real deal. This box costs more than others, but so do Aston Martins. Don't be a square, get an OX!

101-120 of 190 Results