SKU: 24258298330

Universal Audio OX Amp Top Box

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Description

Universal Audio OX Amp Top BoxUniversal Audio OX Amp Top Box at Vinyl Sound Toronto Canada The Universal Audio OX is a premium reactive load box and guitar recording system that lets you record and practice with any tube amplifier at any volume level, delivering authentic speaker cabinet emulations, microphone simulations, and studio quality room modeling from a single front panel RIG knob. Developed by Universal Audio (Santa Cruz, California, USA) and available at Vinyl Sound in

Universal Audio OX Amp Top Box at Vinyl Sound Toronto Canada

The Universal Audio OX is a premium reactive load box and guitar recording system that lets you record and practice with any tube amplifier at any volume level, delivering authentic speaker cabinet emulations, microphone simulations, and studio-quality room modeling from a single front-panel RIG knob. Developed by Universal Audio (Santa Cruz, California, USA) and available at Vinyl Sound in Toronto, Canada, the OX features UA's proprietary Dynamic Speaker Modeling to emulate speaker breakup, drive, and cone cry for reference-quality tube amp tones at any output level.

Reactive Load Box with Full Amp Dynamics

Universal Audio's engineering team designed the OX's reactive load section to present your tube amplifier with continuously variable impedance and response, so the amplifier behaves exactly as it would driving a real speaker cabinet regardless of the attenuation level selected. Output transformer loading, power tube compression, and tonal response all remain authentic from clean to fully cranked settings, preserving the playing dynamics and feel that conventional resistive load boxes eliminate.

Dynamic Speaker Modeling

UA's Dynamic Speaker Modeling faithfully emulates speaker breakup, drive, and cone cry, characteristics of authentic tube amp tones that static impulse response systems cannot reproduce. The Speaker Breakup control in the OX application adjusts the harmonics and sonic complexity that occurs at specific frequencies and volume levels on various speaker designs, delivering the same dynamic phenomena as a real speaker cabinet reacting to your playing in real time.

RIG Control and Cabinet Emulation

The OX's six-position front-panel RIG knob provides instant access to complete setups including emulated speaker cabinets, close microphones, ambient room microphones, and up to four simultaneous studio effects. The OX application, compatible with iPad, Mac, and Windows computers via Wi-Fi, provides access to over 100 custom Rigs with full parametric control over all cabinet, mic, and room settings. Six favorite Rigs save directly to the front-panel RIG positions for instant recall in the studio or on stage.

Connections and Recording Workflow

The OX Amp Top Box provides stereo S/PDIF digital outputs via RCA and optical TOSLINK for direct connection to any audio interface or DAW, alongside balanced TRS stereo line outputs with front-panel level control for studio monitors or live mixing console inputs. A front-panel headphone output enables silent practice with any cranked tube amplifier, and a footswitch input accepts any one, two, or three-button footswitch for hands-free effects switching during performance or recording.

Frequently Asked Questions

What is the Universal Audio OX Amp Top Box?

The Universal Audio OX is a reactive load box and guitar recording system that connects between your tube amplifier and speaker cabinet, allowing you to run your amp at full power while controlling the listening volume independently. It emulates speaker cabinets, close microphones, ambient room microphones, and studio effects via a front-panel RIG knob and the OX Wi-Fi application, and features UA's Dynamic Speaker Modeling to accurately reproduce speaker breakup, cone cry, and drive at any listening volume. Available at Vinyl Sound in Toronto, Canada.

Does the UA OX work with any tube amplifier?

The OX Amp Top Box is compatible with any tube amplifier with an output impedance of 4, 8, or 16 ohms. The reactive load section presents your amplifier with continuously variable impedance that mimics a real speaker cabinet, preserving the amplifier's tonal characteristics, output transformer behaviour, and power tube compression at all attenuation levels. Always match your amplifier's output impedance setting to the OX before connecting.

Can I use the UA OX for silent recording and practice?

Yes. The OX includes a front-panel headphone output for completely silent practice and recording at any tube amp output level. Using the OX application via Wi-Fi from an iPad, Mac, or Windows computer, you can select speaker cabinet emulations, room microphones, and effects while monitoring through headphones, making the OX suitable for apartment practice, late-night sessions, or any environment where speaker cabinet volume is not practical.

What is Dynamic Speaker Modeling and how is it different from impulse responses?

Dynamic Speaker Modeling is Universal Audio's proprietary technology for emulating the behaviour of a real guitar speaker under drive. Unlike conventional impulse response systems, which capture a static snapshot of a speaker's frequency response, Dynamic Speaker Modeling emulates the dynamic changes in speaker behaviour that occur at different volume and drive levels, including speaker breakup, cone cry, and harmonic compression. The OX Speaker Breakup control adjusts the intensity of this emulation to match your playing style and amp output.

How does the OX connect to a recording setup?

The OX provides stereo S/PDIF digital outputs via RCA and optical TOSLINK connectors, balanced TRS stereo line outputs with front-panel level control, and a front-panel headphone output. The digital outputs connect directly to any audio interface with S/PDIF input for recording into a DAW, while the balanced line outputs feed studio monitors or live mixing console inputs. A speaker output also passes signal through to a real cabinet for applications requiring both OX emulation and a live cabinet simultaneously.

What does the OX application control?

The OX application connects to the OX Amp Top Box via Wi-Fi and is compatible with iPad, Mac, and Windows computers. It provides access to over 100 factory and third-party Rigs, each comprising a speaker cabinet emulation, close microphone, ambient room microphone selection, and up to four studio effects. All parameters including speaker type, mic placement, room size, reverb, delay, chorus, and the Speaker Breakup control are adjustable from the app, with six favorites saveable directly to the front-panel RIG positions.

Where can I buy the Universal Audio OX in Toronto or Canada?

The Universal Audio OX Amp Top Box is available at Vinyl Sound, an authorized Universal Audio dealer in Toronto, Canada. Browse the full Universal Audio collection at Vinyl Sound or contact our team to discuss the OX alongside other UA hardware for your recording setup.

Shipping Notes
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SKU: 24258298330

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Amazon Customer
Battle Creek, US
★★★★★ 5
Beautiful
Format: Kindle
I love omegaverses I had looked at this one multiple times thinking it's just another book about cocky rock star guys that let fame get to their heads and there are parts like that so I wasn't 100% off. I started reading the second book and met the fmc Astraea from the first one,after she had a run in with the aphla from the gym.😁 it gave me the push to stop and read book one first and im so glad I did this book was amazing their was so many characters I fell in love with hoping they will find their happily ever after. the guys were great, the plot was 🎯, and the ending had me 😭😭😭. I was wondering how nate could ever redeem himself, and he did. the last scene with him was sad, but I also felt it was beautiful. thank you to the author for making a beautiful omegaverse book that gave me all the feels. now I'm jumping straight into book two.
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Reviewed in the United States on March 25, 2025
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E
Fort Morgan, US
★★★★★ 4
Knot their Omega
Format: Kindle
It took me a day to really get into the book, there is a lot happening in the beginning of the story. I wish there was more of a time frame because I felt like something’s happened quickly but they were farther away than I thought so that was a little confusing to me. I felt like there was so much happening but also not enough. As for the story itself I enjoyed it, it was different than other OV I’ve read. Bring the tissues, you will need them. They guys were great, I wish we saw more of Kai and Kenjis relationship. As for Nate…… IYKYK. I enjoyed this book, my first from this author and look forward to reading about Kamaris story. Book: ⭐️⭐️⭐️⭐️/5 Spice: 🌶️.5/5
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Reviewed in the United States on October 24, 2024
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M. Schmitz
Carnegie, US
★★★★★ 2
Has Potential, Poorly Executed
Format: Kindle
I really really wanted to enjoy this book and was looking forward to reading it. However there were just one too many convoluted plot points, sentences just did not flow nicely at times, and I was left with a lot of confusion on my end. I think it has the bones of being a great story but seems like it was rushed and I had to push myself to finish the last of the book and was left with an unsatisfying ending. It’s definitely different from other omegaverse novels I’ve read but not for good reasons. I really think it could be great but needs some serious tweaking and editing before I’d read it again.
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Reviewed in the United States on February 3, 2025
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Carmen Alicea
Charlottesville, US
★★★★★ 5
Secrets, Seduction, and Rockstars!
Format: Kindle
Rockstars, secrets, and off-the-charts chemistry? Sign me up! Cinder Blaze takes us on a rollercoaster of passion and peril with Knot Their Omega. Blair Vesper, a secret Omega masquerading as an Alpha, strikes a risky deal to tour with Blooming Salvation, a band teetering on the edge of chaos. Enter Icarus Morrigan, the enigmatic manager, and his three complicated and irresistibly sexy rockstars: wild Kenji, icy Kaiser, and fiery Nathaniel. This book delivers steamy Omegaverse drama, sizzling slow-burn romance, and just the right dash of angst. The tension between Blair and the band crackles like electricity onstage, while the societal stakes add depth to the spicy dynamics. Short, sharp, and oh-so-sinful Knot Their Omega will have you hooked from the first note!
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Reviewed in the United States on December 9, 2024
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SR
Los Angeles, US
★★★★★ 5
Good start to a series
Format: Kindle
I delayed reading the series for reasons I don’t remember. But my TBR list is huge so I thought I’d take a shot of this and I was pleasantly surprised. I didn’t think the blurb about it was anything special. But it was a very good book. It took some interesting twists and turns. I am so glad the second book is already out. Because I would not have waited patiently. Very slow burn but good storyline. 🔥🔥/5
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Reviewed in the United States on January 3, 2025

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