Radial Engineering
Radial Engineering EXTC-SA Guitar Effects Interface & Reamp Box
Best professional interface for integrating studio effects into guitar setups.
The Radial EXTC-SA is a unique interface designed to bridge the gap between guitar effects pedals and professional audio equipment like recording interfaces and mixing consoles. It allows you to seamlessly integrate your favorite pedals into your studio workflow, enabling creative reamping of any recorded track with effects like distortion, chorus, or fuzz. The EXTC-SA converts line-level balanced outputs to instrument-level high-Z signals optimized for pedals, and then boosts the processed signal back to balanced line level for input into your interface. It features Radial's class-A buffer for pristine audio quality and transformer isolation to eliminate unwanted noise and hum, ensuring a clean signal path for your creative endeavors.
$329.99
Owner Satisfaction
4.7
/ 5
Category Rank
26
/ 204
#26 in Effects Processors
Price vs Category Average
-27%
Below average
Audio circuit type
Solid state with transformer coupled effects loop
/ Solid state with transformer coupled effects loop
Who it's for
- Studio producers and engineers seeking creative sound design options
- Guitarists and producers wanting to experiment with recorded performances
- Audio professionals prioritizing sonic fidelity and signal purity in their recordings
Who should skip it
- Home studio enthusiasts with limited budgets for specialized gear
- Guitarists who only play live or record direct into an interface
- Novice recording artists unfamiliar with studio signal routing and impedance
Performance breakdown
Signal Integrity
Class-A buffering ensures your tone remains pristine through complex pedal chains.
Noise Suppression
Transformer isolation effectively eliminates ground loops and unwanted studio hum.
Workflow Integration
Seamlessly bridges the gap between professional interfaces and standard guitar pedals.
Build Durability
Rugged construction designed to withstand years of demanding studio and stage use.
Gain Staging Control
Independent send and receive levels provide precise command over signal intensity.
Reamping Versatility
Opens creative doors by allowing any recorded track to hit pedals.
Key Specs
Audio circuit type
Solid state with transformer coupled effects loop
Frequency response
Dry: 20Hz to 20kHz, Wet: 20Hz to 10kHz
Total harmonic distortion
Dry >0.005%, Wet >0.002%
Intermodulation distortion
Dry >0.003%, Wet <0.02%
Input impedance
15k Ohms
Output impedance
200 Ohms
Noise floor
Dry -93dB, Wet -84dB
Maximum input
Dry +26dBu, Wet +20dBu
Features
- Integrate pedals with pro audio gear
- Reamp any track through your pedalboard
- Transformer isolation eliminates hum
- Class-A buffer for optimal signal
- Separate send/receive controls
- Balanced interface for unbalanced pedals
What customers say
Customers consistently praise the EXTC SA for its exceptional build quality and transparent audio performance. Users frequently highlight its robust construction, ensuring reliable operation in both studio and live environments. The device is celebrated for seamlessly integrating studio effects into guitar rigs and reamping tracks with remarkable clarity, making complex signal routing surprisingly straightforward. Its dependable functionality and pristine sound reproduction are recurring themes, affirming its status as an indispensable tool for serious musicians and producers.
Know before you buy
Yes, the EXTC-SA is designed to bridge the gap between professional line-level gear and high-impedance guitar pedals. This allows you to run vocals, synths, or any recorded track through your pedalboard for creative sound design.
The EXTC-SA features transformer isolation specifically designed to eliminate ground loops, which are the primary cause of hum and buzz when connecting pedals to studio equipment. It ensures a clean, professional signal path.
No, the EXTC-SA functions as a complete reamping solution. It handles both the conversion from line-level to instrument-level for your pedals and the boost back to line-level for your recording interface.
The Class-A buffer is designed to maintain the integrity of your signal, ensuring that your pedals receive the correct impedance without coloring the sound. It preserves the natural character of your instruments and effects.
The polarity reverse switch is useful for correcting phase issues that can occur when mixing a dry signal with a wet, processed signal. It ensures that your tracks remain punchy and phase-coherent in the mix.
While it is optimized for studio workflows like reamping recorded tracks, its robust build and high-quality signal path make it perfectly capable of integrating pedals into live mixing consoles or front-of-house setups.
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