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Customer Reviews

OX Amp Top Box

Overall Rating

1-20 of 199 Results

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M. Lyons

March 16, 2025

Awesome piece of gear!

What an awesome piece of gear! The attenuator / load box gets used daily and is super easy to dial in.
The headphone feature has gotten a lot of use to really fine tune my speaker cab settings and practice anytime without disturbing the rest of the house.
The eq, 1176, delay/mod and plate reverb are a nice bonus.
The WiFi can be a little iffy when the signal is below 50%. I had to get a repeater for the practice room or connect an iPad directly. That was a little annoying at first.
A line in would be nice for amp modelers like the Dream 65 and Lion but I guess that’s what the OX Stomp is for.
All in all a solid piece of gear

T. Hagemeyer

March 5, 2025

ox - top built, top features and 'amp' top box!

everything you need to work without physical cabs and mics

J. Perez Garcia

February 3, 2025

OX BOX

I am more than happy with what I can do with the OX, it exceeded my expectations and I am now getting the most out of my tube amps.

P. SHERIDAN

December 6, 2024

Universal Audio Ox

There is nothing that compares to the raw sound of a qualitative tube amp ramped up into good speakers. There are few venues, homes, apartments or even stages where you can get away with the volume to access that amp 'bloom'. The Ox attentuation, for my ears, is an excellent tool to do just that. Its like finally having the keys to a door that is usually kept locked.
On the speaker modelling side, I generally can't stand in-ears or modelling amps that attempt to emulate...yes they work well and get the job done, but the the tone (and feel) just does not match the real thing. I do have to admit, the Ox speaker emulator, coupled with a real tube amp... works. The digital speaker tones I.M.H.O. are point on and the microphone placement/room options are as good or better to a pro studio level. Very cool.
My only suggestion/preference is the proprietary power supply cable. It would be better to move that inside the box and have a simple external IEC connector just to reduce parts and pieces that can get lost in an arbitrary gig bag or studio cable bundle.

D. Parrish

November 4, 2024

Why can't people upload their own IRs?

For how expensive this unit is, there should be an option to load 3rd party IRs. I truly don't understand the thought process behind this decision to leave this option out as a basic feature. I wasn't aware of this limitation when I purchased it and now I kinda wish I went in a different direction. I feel like this is an incredibly easy thing to fix and would make this unit basically perfect if they gave the ability to load 3rd party IRs.

You have to select "Direct" as one of the mic choices in order to bypasses the OX Box's built in IRs. You still need a secondary product in the signal chain such as an IR loader in order to do what almost all other reactive load boxes on the market can do natively.

Please update the firmware with the ability to load our own IRs. It's past due.

R. Thurn

November 1, 2024

No Backup, no Import, no Export! Sorry is 2024

Please give us a update to backup our created rigs. Import and export files is normal for 2024

R. Duffield

October 14, 2024

Love My OX BOX

Guys i really do love it , how about even the smallest software update , add a mic or an effect or even one cab .. to show us that you love it too !!! its been way too long guys - love me some UAD but do you ??

the product itself is 5 stars to be honest but only 3 for this review as someone dropped the ball

T. Gschwendner

October 9, 2024

Great sounds, but...

obviously a product, that was abandoned by Universal Audio. No updates to the app for more than two years, no new cabs, check out the forums, if you want to read about WiFi problems. Quite a shame.

P. Chandler

October 3, 2024

I sold my Kemper and now back to using tubes.

I sold my Kemper and am now back to using tube amps, thanks to the Ox Box. It provides exactly what I need: real tube sound at apartment-friendly volume.

P. Chandler

October 3, 2024

I sold my Kemper and now back to using tubes.

I sold my Kemper and am now back to using tube amps, thanks to the Ox Box. It provides exactly what I need: real tube sound at apartment-friendly volume.

H. Pamminger

September 15, 2024

Ox what else?

Playing tube amps at home can be of a challenge > it might get cloud. The way UA creates an answer with the Ox is simply great. It even goes further by providing this app based concept with various possibilities to discover guitar music - thanks!

N. Oku

June 1, 2024

I can make the sound I thought.

It's a wonderful equipment that can make the sound you think.

D. Cohn

April 28, 2024

Game Changing Gear

Believe the hype. OXBOX is is Swiss Army Knife of tone shaping tools. I've particularly enjoyed using it as in interface during rehearsals, allowing me to have some room tone while getting a perfectly recorded, pefectly isolated signal. Great piece of kit.

R. Duffield

April 7, 2024

Every Day Piece

Could not live with out it , need a second one actually !!! one thing its time for even just a small update to say we have not forgotten ... its time guys ..

H. Nuesink

March 15, 2024

Top Sounds With Top Gear

Expect a lot from the OX but this is really good. Usable FX and Easy to Use

F. Doria

March 15, 2024

great sounds but constant connection problems

great sounds but constant connection problems. Considering the cost it is a problem that needs to be solved.

M. Balanky

March 1, 2024

It's been disappointing. I hear crackling on the high end that isn't present in real life. Amps have less headroom in the OX than real life.

I'm still trying to work through the issues, but there is an artificial break-up distortion on the high end that seems to be input overload, even when my meters are all green. I've tried it with single-ended amps, so there is no chance of an issue from mismatched tubes that the support talks about.

It works to play quietly at night and I'm in the middle of using it to record an album, but the amps don't sound the same as they do in the room with the same mic and speaker as modeled on the OX. I bought a second one to verify and they both have it. I've heard it on other people's YouTube videos now that I'm aware of it. It is not a silver bullet.

Besides the artificial distortion I hear, the amps don't seem to have the same amount of headroom as they do in real life. This causes me to find new tones instead of using settings that make tones I like in real life. So, it is like relearning how to ride a bike, which is a drawback. I've troubleshot the thing to death - impedances are matched, tubes are good, tried a new spdif cable, power supply, new ox, verified metering, etc. I sent a sound file to UA, and the support person told me they didn't hear anything. My wife, not a musician, can hear the crackle. ...

M. Power

February 25, 2024

A Dino get's to keep his stuff.

I'm older, just turned 50, and I've been recording rock guitar since I was 15. I love tube amps and I always go for the 100W tube heads cause I'm a gear snob.

My Ox Amp Top Box's attenuator is as good as, or better than any attenuator I've owned and being a 100W Gear Snob, that was a few of them. It's sounds great and I forgot I was playing through it within 30 secs and strapping my guitar on.

The part that blew my mind was the recording capabilities!

I've really tried to like plugins, and some are pretty good...until I do something that requires rolling off my volume to clean up my sound (Not much of a channel switcher) The plugins just couldn't react well.

Now, I can run a maxed 2203 and record, with exceptional quality, using headphones at 3 AM.

PS: The cab emulation is fantastic. When I record, it doesn't even dawn on my that it's software.

No more words needed.

My Ox Box is now a permanent fixture in my studio space.

J. Morales

February 21, 2024

Great experience!

Perfect for record or practice. My full band practice in Luna with headphones. Make more easy for the drummer follow the guitar when track by headphones using a JCM 800. I love it!

M. Pointon

February 2, 2024

Just great

I've not used this as an attenuator so can't talk about that. I use this for recording and it's just amazing

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