4.2 (20)

OX Stomp Dynamic Speaker Emulator Pedal

Get perfectly miked guitar tones in seconds.

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  • Get three-dimensional, album-ready guitar tones from your amp emulator thanks to Dynamic Speaker Modeling
  • Experience jaw-dropping speaker, cabinet, and room emulations far beyond common IR loaders
  • Add studio-quality 1176 compression, plate reverb, EQ, modulation, and stereo delay effects for perfectly produced tones
  • Get realtime MIDI control*, improved Bluetooth and hardwired connections, and more using updated UAFX Control app
  • Audition, tweak, and save custom presets and more with the UAFX Control mobile app
Downloads & Details

Downloads

Details

  • 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
  • Supports MIDI-over-USB*, improved Bluetooth and hardwired connections, and more via the updated UAFX Control app
  • UAFX Control app for fine-tuning mics, effects, and footswitch configurations 
  • Silent switching, buffered bypass, analog dry through
Cab Emulations***
  • 1x10 Black Cha (Fender Super Champ w/ vintage Fender "Blue")
  • 1x12 Blue J ('55 Fender Tweed Deluxe w/ vintage Jensen P12R)
  • 1x12 GB25 ('55 Fender Tweed Deluxe w/ vintage Celestion "Greenback")
  • 1x12 Blu 15 ('55 Fender Tweed Deluxe w/ reissue Celestion Alnico "Blue")
  • 1x12 Black D-ux (Mid-'60s Fender Deluxe Reverb w/ vintage Oxford 12K5-6) 
  • 1x12 Black GB30 (Fender Princeton II w/ Celestion G12H)
  • 2x10 V-ux (Late-'60s Fender Vibrolux w/ stock vintage Fender "Blues")
  • 2x12 Two Verb (Late-'60s Fender Twin Reverb w/ vintage Jensen C12Ns)
  • 2x12 Black 8H (Custom Altec cabinet w/ vintage Altec 8H Series IIs)
  • 2x12 Ace Top (Mid-'60s Vox AC30 w/ vintage Celestion "SIlver Bulldogs")
  • 2x12 Boutique D65 (Two-Rock extension cab w/ Celestion G12-65s)
  • 2x12 Alnico 50 (Fender closed-back extension cab w/ Eminence EJ1250s)
  • 4x10 Bman ('59 Fender Bassman w/ reissue Jensen P10Rs)
  • 4x12 GB25 Thick (Late '60s Marshall w/ vintage Celestion 25-watt "Greenbacks")
  • 4x12 GB25 Punch (Late '60s Marshall w/ vintage Celestion 25-watt "Greenbacks")
  • 4x12 Super 80 ('80s Marshall w/ Celestion 80-watt Classic Leads)
  • 4x12 White 75 ('80s Marshall w/ Celestion 75-watt Creambacks)
  • 1x12 JBG 125 (Custom-made "D" cab w/ vintage JBL G-125)
  • 2x12 JBF 120 (Late '60s Fender Twin Reverb w/ vintage JBL D-120Fs)
  • 4x12 GB 30 (Marshall "100" birch cab w/ Celestion 30-watt "Greenbacks")
  • 4x12 UK VEE 30 (Marshall 1960 TV cab w/ Celestion Vintage 30s)
  • 4x12 CA VEE 30 (Mesa/Boogie Recto large cab w/ Celestion Vintage 30s)
Shipping & Returns

Shipping: Enjoy free standard ground shipping on US hardware orders over $100. Expedited delivery is available for a fee. See full shipping details.

Returns: You can return eligible hardware within 30 days of delivery for a full refund. Return shipping costs are non-refundable. See full return details.

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Get Perfectly Miked Guitar Tones in Seconds

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.

Specifications

Specifications

Power requirements (power supply sold separately)
Isolated 9VDC, center-negative, 400mA minimum
Inputs
2 x 1/4" unbalanced TS (input 2 for stereo connections)
Outputs
2 x 1/4" unbalanced TS (output 2 for stereo connections)
Bypass modes (switchable within UAFX Control app)
Buffered bypass
Input impedance
500 Kilohms (Mono In) 1 Megohms (Stereo In)
Output impedance
500 Ohms
Maximum input level
12.2 dBu
Maximum output level
12.1 dBu
Frequency response
20 Hz to 20 kHz, ±1 dB
USB Type-C
For registration and firmware updates via computer
Wireless technology
Bluetooth v5 Transmitted Frequency Range: 2.400 GHz – 2.4835 GHz Maximum Output Power: +4.35 dBm
Dimensions (with knobs and protrusions)
Height: 2.56 inches, 6.5 cm Width: 3.62 inches, 9.2 cm Depth: 5.55 inches, 14.1 cm
Weight (unboxed)
1.3 lbs, 0.588 kg

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What They Say

Ox Stomp is perfect for getting a good tone with just a couple of pedals. We’ve come a long way from lugging huge amps to sessions to get a great sound!

Butch Walker

Green Day, Weezer, Taylor Swift

Ox Stomp is a great tool for practicing on the road! Along with the Lion '68 Super Lead Amp pedal, I get superior sound on the go.

John Notto

Dirty Honey

I really love the Lion and Ox Stomp! They're the only way I can really play my harp through a variety of amp styles outside of a DAW..

Emily Hopkins

UA Studio Sessions

Reviews

4.2
Rated 4.2 out of 5 stars
Based on 20 reviews
75%would recommend this product
20 reviews
  • K
    K
    Verified Reviewer
    I recommend this product
    Rated 5 out of 5 stars
    11 months ago
    The finishing touch!

    I'm a tone snob. Opinionated and always looking for "holy grail" sounds. I was very skeptical that anyone's idea of what guitar should sound like could meet my personal standards (UA - no offense! I absolutely rely on your Apollo ecosystem and plugins for my audio work.) This pedal has hit the mark. While the presets are great, I actually needed some very specific dual mono setups and was able to build stunningly realistic rigs that are fun to play through without the froggy tones of IR platforms. Thank you UA. (And thank you for the super smooth controls in the latest free app update - that was my only gripe!)

  • KM
    Kit M.
    Verified Reviewer
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    Absolute gem with room to improve

    "Use your ears!" 5 stars based on outcome.

    I understand why negative reviews are hung up on app shortcomings but once I configure a setup I don't need the app at all. I hope UA delivers for customers begging for a desktop app, improvements to the mobile app, and configurable hardware-to-parameter mapping.

  • P
    Philippe
    Verified Reviewer
    Rated 3 out of 5 stars
    1 year ago
    Great products - Needs a Desktop App Pronto

    Tones are immaculate, the mobile app is a nice gimmick. But come on, this thing needs a desktop app. It's ridiculous that I have to pull my phone every time I need to adjust something. Thank you.

  • MS
    Michael S.
    Verified Reviewer
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    Amazing Cabs + Mics + EFx

    If you care about your tone, you really should give this box a try. It is a wonderland of boutique tones for all of your preamps and amp simulators. Since I got it, my guitar recordings sound so much better -- very lifelike and 3D. If you own a Synergy system, any UA Stomp pedals, Fractal/Helix stuff, or any of the other amp-in-a-box devices (from Victory, Friedman, Two Notes, etc), this is a great match. However... I'm using it mainly for home recording. I don't know how useful it would be in a live situation, and it's NOT a load box, so it can't go directly after a tube amp head.

  • JH
    Jim H.
    Verified Reviewer
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    Amazing

    I used this with a cheap Boss IR 2, and it is really surprising how good this thing sounds. Factory presets are great to demo how a single cabinet can change character with a few studio effects. You could easily pick a single cabinet you like for your amp sim and have six distinct preset slots by making simple changes in the app.

Frequently Asked Questions

UAFX pedals require an isolated 9 volt DC, center negative, 2.1 x 5.5 mm barrel connector (same as standard Boss connectors) power supply that can provide the following current requirements: Full-sized UAFX pedals (with two footswitches) require 400 mA (milliamps) of current; Compact UAFX pedals (with a single footswitch) require 250 mA (milliamps) of current
Connect the pedal using a USB-C cable to your compatible computer, and run the UA Connect application to update your firmware.
You can register your pedal with the UA Connect desktop app or the UAFX Control mobile app.
Dual footswitch UAFX pedals have Bluetooth, and you can download the UAFX Control mobile app from the Apple App Store or Google Play Store, to connect to your pedals and access additional functionality.
Each UAFX pedal has unique functionality. We recommend carefully reading the accompanying manual for each pedal here.

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