OX Amp Top Box from Universal Audio

Discussion in 'Guitars' started by audiokid, Jul 13, 2017.

  • AT5047

    The New AT5047 Premier Studio Microphone Purity Transformed

  1. audiokid

    audiokid Chris Staff

    Mar 20, 2000
    BC, Canada
    Home Page:
    Sneak Peak: New OX Amp Top Box from Universal Audio at Summer NAMM Show

    — OX enables guitarists to get the ultimate studio tone from their tube amps, anywhere, at any volume —

    SCOTTS VALLEY, CA • July 13, 2017 — Universal Audio is excited to debut the OX Amp Top Box at Summer NAMM 2017. This premium reactive load box allows guitarists to play and record their tube amp in its ideal sweet spots — from the edge-of-breakup to fully cranked — at any volume level, and with instant album-quality mic, room, and speaker cabinet emulations at the turn of a knob.


    “OX is like no other box on the market,” says Universal Audio CEO and Founder, Bill Putnam, Jr. “It removes the barrier of getting perfect tone from tube guitar amps, at any volume. At its core is the world’s finest speaker attenuator and reactive load. But then we took it several steps further with UA’s own ‘secret sauce’ — namely Rig presets with stunning mic and studio emulations; and Dynamic Speaker Modeling, which emulates speaker breakup and cone cry like no other box in history.

    “OX is the ultimate tool for tone-obsessed guitarists who want album-quality tube amp sounds, anywhere, anytime — with zero compromises.”

    The OX Amp Top Box is scheduled to ship Q4 2017 with a US street price of $1299.

    OX Amp Top Box – Key Features:
    • Premium, no-compromise analog reactive load box for tube guitar amps
    • Five finely-tuned guitar amp attenuation levels — from off, to whisper quiet,
      to full band volume
    • Front-panel “Rig” control for instant, album-quality mic and speaker cabinet emulations
    • UA Dynamic Speaker Modeling faithfully emulates speaker breakup and cone cry
    • World-class Universal Audio EQ, compression, delay, and reverb effects built-in
    • Selectable 4, 8, and 16-Ohm operation
    • Front-panel Headphone out for silent practice with cranked tones
    • Balanced TRS line outs, and S/PDIF digital output for recording
    • Pair with OX mobile or desktop app over Wi-Fi for editing and saving presets
    kmetal likes this.
  2. Davedog

    Davedog Distinguished Member

    Dec 10, 2001
    Pacific NW
    I have a Rivera Rock Crusher Recording. The "reactive" part is the key.
  3. Kurt Foster

    Kurt Foster Distinguished Member

    Jul 2, 2002
    77 Sunset Lane.
    they had me until this .....

    what a load! (pun intended)
  4. pcrecord

    pcrecord Quality recording seeker ! Distinguished Member

    Feb 21, 2013
    Quebec, Canada
    Home Page:
    You don't need to be obsessed to want good sound. WTF is album quality anyway ?? :ROFLMAO:
  5. Davedog

    Davedog Distinguished Member

    Dec 10, 2001
    Pacific NW
    There may be one or two more boxes that work off of this principle. I'm not too sure what they are or who makes them. I think that Suhr makes one also...However.......

    This is not to be confused or even associated with any kind of resistive load box like has been around for so many years. These boxes simply loaded the amp head up so it was happy seeing a load and allowed the player to dial back the overall volume in whatever environment they might be playing in. The boxes dissipated this load as heat and the resistance remained constant on the head. It also KILLED the tone and response.

    This is, however, not what really happens to a tube amp head in use. The output resistance is constantly changing and this has a LOT to do with the feel and sound of your tube amp. So some smart person figured out how to create a loading circuit that satisfies the amps' need for resistance at its output and also one that allows the resistance curve to work its magic.

    If you think its horseshit and hype, you need to get out more and try things out. These things actually work quite well. Check out some of the live rigs of the bigger names in guitar wankers and chances are theres an amp head somewhere under the stage with one of these boxes on it feeding small perfectly designed speaker cabinet and this is where FOH is getting their feed from.

    As for a recording tool, I've used mine and can say how nice it is to use an actual high wattage amplifier in a small room with neighbors and get the full effect of the output tubes breathing fire and reacting much like they would in an open arena or outdoors.

    I don't know about the others but my Rivera comes with a nice EQ and a bunch of charts taken from actual speakers and their responses that lets you dial up a basic overlay of aspects of many popular speakers. My favorite being the EV 12L with a frikkin Marshall in front of it. But who would want to tote that around for even a minute???

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice