Radial Reamp Jcr Studio Reamper

by Radial

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The Radial Engineering Reamp JCR is a passive reamper that allows you to take a prerecorded track and send it back to a guitar or bass amplifier and re-record it. The benefits are tremendous: instead of worrying about the sound of the track, you can focus your attention on getting the best musical performance. Once the performance has been captured, you can reamp the track even in the absence of the guitarist by moving the mics around the room, trying various amplifiers, or introducing effects. Additionally, you can also reamp the track later as the production develops.

This reamper features the original reamp circuit designed by John Cuniberti. It features a 100% passive design with John's original custom-wound transformer and circuit that are made in the USA. It also features separate XLR and 1/4" TRS input connectors, variable output level, and a 3-position filter that lets you tame excessive highs, warm up the lows, or simply bypass if you want to revert to the original circuit. An on-board mute function has also been added to let you shut off the signal going to the amps while making adjustments or moving mics around the studio.


Lets you re-record tracks through a guitar or bass amp
Original reamp circuit designed by John Cuniberti
Easy-to-use, plug-and-play passive design
Improves productivity while expanding creative options


XLR Input
Balanced input
Connects from the output of your recording system to the Reamp JCR
1/4" TRS Input
Connects from your recording workstation and is suitable for both lo-Z and hi-Z sources
Wired in parallel with the XLR input
1/4" Output
Unbalanced instrument level output
Connects from the Reamp JCR to amps and effects
Transformer isolated to eliminate hum and buzz caused by ground loops

Control Knobs and Buttons

Silences the 1/4" output from the Reamp JCR going to the guitar or bass amplifier
Used to control the signal going from the Reamp JCR to the guitar or bass amplifier
Sets the reamping output level to your amp
Three-position switch used to select between preset EQ filter
Low-pass (high-cut) setting to warm overly bright amps
High-pass (low-cut) setting to clean up low end mud
Flat setting to bypass the filters and go back to the original reamp circuit
Ground Lift
Disconnects ground at the balanced inputs to eliminate hum and buzz caused by ground loops
180° Phase Invert
Flips the electrical polarity of the output to compensate for amps or effects that invert the signal

Construction and Design

Steel Construction
Heavy-duty 14-gauge steel construction for added durability and extra shielding against electromagnetic fields
Mil-Spec Circuit Board
Double-sided PCB and full ground plane to assure low noise and high durability for trouble-free performance
Book-End Design
Creates protective zone around connectors, switches, and potentiometers for added protection
Push Switches
Feature durable metal outer casing
Rated at over 20,000 cycles
Isolates and converts the impedance to properly feed the guitar amp
Custom made in USA
No Slip Pad
Full bottom surface neoprene pad provides electrical isolation and mechanical insulation
Keeps the JCR Reamp from moving around when placed on the guitar amp
Baked Enamel Finish
Keeps your JCR Reamp looking great for years
UPC: 676101040315