Radial Reamp JCR - The Ultimate Passive Reamper by John Cuniberti
Original Reamp Circuit
Revolutionize your recording process with the Reamp JCR! This passive reamper lets you send prerecorded tracks back to a guitar or bass amp for re - recording. Enjoy the freedom to focus on the performance, not the track sound. Capture the magic and reamp at will as you experiment with mics, amps, or effects. Reamp later in the production process for ultimate flexibility.
Play now, perfect later
The latest Radial Reamp JCR, designed by John Cuniberti, features a 100% passive design with a custom wound 'Made in the USA' transformer and circuit. It has separate XLR and 1/4' TRS input connectors, variable output level, and a three - position filter. Tame highs, warm lows, or bypass. An on - board mute function allows you to silence the signal to amps during adjustments.
Reamping Part 1
Start by recording a dry, clean track. The Radial J48 is great for this, offering an ideal impedance for a natural guitar tone.
Reamping Part 2
Send the dry track back to the Reamp JCR to feed a guitar or bass amp. Mic the amp and find the sweet spot.
Adding Pedals
Take your creativity further by adding effects pedals. Try a wah on kick drum, envelope on snare, or distortion on vocals. Let your imagination run wild!
• Re - record tracks through a guitar or bass amp with ease
• Based on John Cuniberti's original Reamp circuit
• Simple plug - and - play passive design for hassle - free use
Features:
- 1/4' TRS input: Connects to your recording workstation, suitable for lo - Z and hi - Z sources, wired in parallel with XLR.
- 1/4' Output: Unbalanced instrument level output, transformer isolated to eliminate hum.
- Mute: Silences the output to the guitar or bass amplifier.
- Filter: 3 - Position switch for high - cut, low - cut, or bypass.
- Level: Controls the signal level to the guitar or bass amplifier.
- Phase Invert: Flips the polarity at the output.
- Ground Lift: Eliminates ground loop hum and buzz.
- XLR Input: Balanced input from your recording system.
Specifications:
- Audio circuit type: Passive, transformer isolated
- Frequency response: 20Hz ~ 20kHz (+0dB/-1dB)
- Dynamic range: 140dB
- Total harmonic distortion: 0.001% @ 1kHz/0dBu input
- Intermodulation Distortion: 0.0025% @ 1kHz/-10dB input
- Phase Deviation: 2° @ 100Hz; 0° @ 800Hz
- Input Impedance: 1800 Ohms
- Output Impedance: 4.8k Ohms
- Common Mode Rejection Ratio: -55dB @ 55Hz
- Noise: -115dBu
- Maximum Input: +26dBu
- 180° polarity reverse, Ground lift, HPF, LPF, Level Control
- Input Connectors: 1/4' TRS, XLR
- Output Connectors: 1/4' unbalanced
- Construction: 14 - gauge steel chassis & outer shell
- Size (L x W x D): 3.3' x 5.0' x 2' (84 x 127 x 48mm)
- Weight: 1.32lb (600g)
- Shipping size (L x W x D): 4' x 3' x 6.5' (102 x 76 x 165mm)
- Shipping weight: 1.85lb (840g)
- Power: Passive, no power required
- Conditions: For use in dry locations only between 5°C and 40°C
- Warranty: Radial 3 - year, transferable




The Radial Reamp JCR is a must - have for musicians and audio engineers. Use it in a recording studio to re - record tracks through a guitar or bass amp. Its simple plug - and - play design makes it easy for beginners and pros alike. The unit has a 14 - gauge steel chassis, with dimensions of 3.3' x 5.0' x 2' (84 x 127 x 48mm) and weighs 1.32lb (600g). It's suitable for dry locations between 5°C and 40°C and comes with a 3 - year transferable warranty.