Universal Audio OX Stomp Speaker Emulator Pedal (GPM-OXSTP)

Standing on the shoulders of our award-winning OX Amp Top Box, OX Stomp Dynamic Speaker Emulator pedal gives "amp-in-a-box" modelers a packed pro studio full of authentic-sounding guitar cabinets, mics, room modeling, and studio-quality effects — right at your feet. Going far beyond the one-dimensional captures of Impulse Response systems, only UA’s groundbreaking Dynamic Speaker Modeling convincingly emulates speaker breakup, drive, and cone cry — providing harmonics and sonic complexity indistinguishable from a perfectly studio-miked speaker cabinet. In addition to expertly placed close condenser, dynamic, and ribbon mics on your cabs, OX Stomp is the only effects pedal to offer a complete selection of room mics with Dynamic Room Modeling. This gives you the authentic experience of pushing air while recording your cranked amp in a world-class tracking room. Whether you're using a UAFX amp emulator pedal or other popular amp modelers, multi-effects, or profilers — even your favorite amp's preamp line out — OX Stomp gives you over 100 curated RIG setups, giving you inspiring sounds for any amp type or genre, right out of the box. Beyond mic and speaker cabinet modeling, Ox Stomp also lets you craft stunning guitar sounds with UA effects like genuine 1176 compression, plate reverb, chorus, flange, three delay types, and four-band EQ with high and low-cut filters. With the UAFX Control app, you can easily swap cabs and mics, fine-tune effects, assign RIG presets, and configure footswitches to instantly toggle sounds and/or effects, for a pro studio's worth of tones on your pedalboard. With its generous complement of 22 cabinets and six microphones, OX Stomp gives you nearly any tone imaginable.

  • The most authentic sounding speaker, cab, mic, and room tones ever emulated in a stompbox
  • Authentic speaker modeling including speaker breakup, drive, and cone cry
  • Over 100 curated RIGs perfect for any amp emulator or genre for endless inspiration
  • Studio-quality effects including genuine UA 1176 compression, plate reverb, EQ, and stereo delay (dual, crossover, ping-pong) for perfectly produced tones
  • UAFX Control app for fine-tuning mics, effects, and footswitch configurations
  • Silent switching, buffered bypass, analog dry through
  • Power requirements: Isolated 9VDC, center-negative, 400 mA minimum (sold separately)
  • Inputs: 2 x ¼” TS
  • Outputs: 2 x ¼” TS
  • USB Type-C for updates via computer
  • Height: 2.56” (6.5 cm)
  • Width: 3.62” (9.2 cm)
  • Depth: 5.55” (14.1 cm)
  • Weight: 1.3 lbs (0.588 kg)

Returns

We want you to be thrilled with your purchase and do our best to make returns easy, with no hassle.

New Items - Returnable within 30 days of delivery for any reason.

Used & Vintage Items - Returnable within 7 days of delivery for any reason.

General Terms

Items must be returned in original, as-shipped condition with all original packaging and no signs of use. You may ship via any carrier, but we recommend using a service that offers insurance and tracking as we can't be responsible for a return that doesn't make it back or is damaged in transit. Buyer assumes responsibility for all return shipping costs unless the item was not received as described.

All returns must be pre-approved. Approved returns must be shipped back within 7 days of return approval, and received by us no more than 30 days from date of delivery. Any returns not complying with the above may be returned to sender or subject to a 10% restocking fee at our sole discretion.

Note RE: Cases! Guitar cases can be tricky! If you're not sure if your guitar will fit and the listing doesn't specifically say it will fit a particular model of guitar (e.g., a standard strat/tele/LP body), please ask first, as the buyer will be responsible for shipping costs on "doesn't fit" returns.

Note RE: hums/noise/hiss - most amplified electrical instruments and effects will have some floor level of noise, even ones that are "hum-canceling". That level will vary with the instrument, type of effect, pickup style, etc., not to mention the environment where it's being used, connected gear, etc. We get frustrated by noise too! If you find a product is too noisy for your taste, you may by all means return it under our normal Return Policy, but that noise will not be considered a "defect" unless it is something truly bizarre or unusual (if there's a clear problem with the unit--like a pedal simply screeching and not passing signal, etc., which is super-rare). As a general rule, we'll defer to the distributor or manufacturer to make a determination as to whether the noise inherent in a product is normal or out of the ordinary. Let us know if you have any questions on this.

Refunds

Buyer receives a full refund in their original payment method less any shipping charges. "Shipping charges" (deducted from return refunds) means our actual cost to ship the item to you, even if shipping was included in the original price.

Shipping

Shipping is free for orders over $20 delivered within the continental United States.

We will ship all orders by whatever method appears to offer the best price/speed value for the product's size, weight, and destination. Large items (instruments, amplifiers) usually ship via UPS Ground (sometimes FedEx). Smaller items typically ship via USPS (Priority Mail for items over 1 pound, First Class for items under 1 pound). If you have special shipping needs, before you check out, please send us a message or call and we can discuss alternative arrangements and additional costs, if any.

Once payment is processed, we will pack your item carefully and ship your order as soon as possible. Usually, this means by the end of the next business day. We will post a tracking number to your order as soon as it is available (note tracking updates vary by carrier, service, and time of year). If you have special requirements or concerns, please contact us.

Most items ship from our headquarters in Miami, Florida, but some items ship from warehouses in other parts of the country. In any event, we will provide tracking information on every order--we know how exciting it is to watch as your gear makes its way to your door!

International Shipping

Although we primarily ship to the Continental United States, many of our items can ship internationally. If you would like to ship to a location that does not appear in the shipping options, please don't hesitate to let us know. We'll advise whether we can accommodate and will provide you with a special shipping estimate. Please note buyers are responsible for all tariffs or duties--we appreciate your not asking us to misrepresent the item on customs forms.