The Radial Engineering EXTC-500 Guitar Effects Studio Interface enables creatively inclined engineers to introduce guitar pedals into the signal chain. The EXTC Studio Interface takes a balanced signal, unbalances it and reduces the level so that it can properly interface with hi-Z guitar pedals. Once the signal is processed, this studio interface reverses the process by taking the unbalanced signal and reconverts it back to a +4 dB balanced line level signal for easy manipulation in the professional recording environment. This, for instance, lets you add wah to a kick drum, tube distortion to a vocal track, or maybe an old-school tape echo to an acoustic guitar. As pedals can be noisy, the EXTC Studio Interface is transformer isolated to eliminate hum and buzz caused by ground loops. A 180° polarity reverse ensures that the wet-dry mix is in phase.
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Description
Radial Engineering EXTC-500 Guitar Effects Studio InterfaceThe Radial Engineering EXTC 500 Guitar Effects Studio Interface enables creatively inclined engineers to introduce guitar pedals into the signal chain. The EXTC Studio Interface takes a balanced signal, unbalances it and reduces the level so that it can properly interface with hi Z guitar pedals. Once the signal is processed, this studio interface reverses the process by taking the unbalanced signal and reconverts it back to a +4 dB balanced line
100% discrete class-A signal path
Transformer isolated to eliminate noise
Separate send & receive level controls
Front panel ¼" jacks for easy connection
Lets you fatten up a track using pedals
Allows you to add guitar effects like overdrive to voice
Lets you use effect pedals in new ways
Creative tool to make your tracks stand out
Easy to use
Isolated output to eliminate ground loops
Wet-dry mix to adjust the balance
Can also be used for reamping
100% steel casing reduces magnetic interference from other nearby modules that may cause pollution
Adjusts the wet-dry mix between the original unprocessed signal and the EXTC's effects loop
Lets you reverse the polarity of the wet signal path and bring it into phase with the dry signal when they are being mixed together
Turns the Omniport insert jack into a second send & receive path for additional processing
For adjusting the send level to the pedals and return path level back into the EXTC to optimize the signal-to-noise ratio
Allows you to separate send and receive ¼" jacks used to connect guitar pedals to the EXTC. Front panel mounted to make connections easy for use on the desktop
TRS jack is set up as an insert to connect to a remote patch bay or effect device. This follows the tip-send, ring-receive convention. It is available when used with Radial Workhorse racks.
Double-sided and gold-plated edge connector ensures enhanced conductivity and signal transfer
Helps eliminate hum and buzz caused by ground loops
Radial's FET amplifier delivers natural tone and optimal signal transfer for high-impedance instruments and effects
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
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Product Reviews
★★★★★ 5
Huele muy bien.
Muy idratante
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Reviewed in the United States on September 24, 2025
★★★★★ 5
Doesn’t squeak but the dogs still love them
Our doggies love them!! Very durable! They do not squeak though
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Reviewed in the United States on May 7, 2026
★★★★★ 5
10/10 for my dogs
Color: A.Orange+Blue+Green
super bouncy and fun for my dogs! they love playing with and tossing them around! hard to see in the water tho!
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Reviewed in the United States on May 29, 2026
★★★★★ 4
Lightweight Balls
Color: A.Orange+Blue+Green
lightweight but solid. Unfortunately, I can't bring to dog park for my dog to play with as the larger dogs will destroy them. Not for dogs that chew through everything.
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Reviewed in the United States on January 31, 2026
★★★★★ 5
Fun ball
It doesn’t last a whole long time, but she loves it! It’s crazy and it drives her playfulness crazy!
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Reviewed in the United States on February 8, 2026
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