Radial EXTC-STEREO
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The essential facts about the EXTC-STEREO effects interface
The essential facts about the EXTC-STEREO effects interface
- Stereo reamping and effects integration: route prerecorded tracks back through amplifiers and/or pedals (chorus, delay, reverb) without losing control of the mix.
- Ultra-flexible studio workflow: capture the best performance first, then shape the sound afterwards (mic placement, amplifier selection, effects chain).
- Precise level control: send and receive adjustments, blend control (effect/direct signal balance), and phase inversion for optimal coherence.
- Designed for demanding sessions: two channels, a 20 Hz–20 kHz frequency response, and very low distortion to preserve detail.
Manufacturer Information
Radial
https://www.radialeng.com
info@radialeng.com
------------------------
Safety manager:
Algam SAS
Email: contact@algam.net
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Essential Information About the EXTC-STEREO Effects Interface
- Reamping and stereo effects integration: send pre-recorded tracks to amps and/or pedals (chorus, delay, reverb) without losing mix control.
- Ultra-flexible studio workflow: capture the best performance first, then shape the sound afterward (mic placement, amp choice, effects chain).
- Precise level control: send and receive adjustments, blend management (effect/direct signal balance), and phase inversion for optimal coherence.
- Designed for demanding sessions: two channels, frequency response 20 Hz - 20 kHz, and very low distortion to preserve detail.
Reamping: a technique that has become essential in modern production
Long considered a "secret weapon" of sound engineers, the reamping method has become standard in studios whenever creativity and efficiency need to be combined. The principle is simple: a track already recorded (guitar, bass, keyboards, percussion, vocals) is sent back to an amp or effects chain, then re-recorded with a microphone in a more traditional way. The EXTC-STEREO fits into this production logic: it facilitates back-and-forth routing between your console or recording interface and an external effects world, with a stereo approach designed for current mixes.
Who is the EXTC-STEREO for and what are its uses?
The EXTC-STEREO is intended for ambitious home studios, recording studios, mixing rooms, and hybrid setups that want to use pedals and external effects as true studio processors. It is ideal if you want to process tracks already "in the box" (DAW) with hardware, or if you are looking to reamp cleanly without sacrificing level control.
In practice, it opens the door to very creative scenarios: drum overheads enriched by a multitap delay, keyboards revitalized by a flanger, bass reamped in multiple configurations, or vocals "re-colored" via an effects chain. All while maintaining coherent stereo management, particularly useful for reverbs, ping-pong delays, and modulations.
Technical specifications
| Frequency response - start | 20 Hz | THD | 0,003% @ 1kHz |
| Frequency response - end | 20 kHz | Inputs | 2 x combo XLR / jack TRS |
| Category | effects interface | Analog outputs | 2 x jack, 2 x XLR |
| Number of channels | 2 | Color | Orange |
| Digital conversion | No | Power supply | DC 15 V |
| Max input level (dBu) | 26 | Weight | 0.8 kg |
| Integrated preamp | Yes | Dimensions (mm) | 270 x 120 x 70 |
| Settings | blend, loop, phase inverter, send and receive | ||
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Questions frequently asked
Can stereo effects pedals be used with the Radial EXTC-STEREO?
The two effects loops on jacks allow inserting external pedals or effects in stereo. This setup is suitable for reverbs, ping-pong delays, and stereo modulation effects.
What connectivity options are available for connecting an audio interface and external effects?
The interface includes 2 combo XLR/TRS jack inputs, as well as 2 jack outputs and 2 XLR outputs. The effects loops have 2 inputs and 2 outputs on jacks.
How is the mix between dry signal and effect adjusted?
The Blend control sets the proportion of direct and processed signal. The Send and Receive controls separately adjust the level sent to the effects and the returned level.
Does the EXTC-STEREO allow phase correction?
A phase inverter is built in to be used when a direct signal is mixed with an effects return. It helps minimize phase issues that can affect bass or the stereo image.
What are the audio specifications and power requirements?
The specified frequency response ranges from 20 Hz to 20 kHz, with a THD of 0.003 % at 1 kHz. The maximum input level is 26 dBu and the power requirement is 15 V DC.
