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Radial JCR Reamp

®

 Specifications

Frequency response:  

20Hz to 20kHz (+/- 1dB)

Total harmonic distortion:  

0.001% @ 1kHz/0dBu input

Input: 

+4dB balanced line-level, 1800 Ohms

Maximum input level:  

+26dBu 

Output: 

Instrument-level (variable), unbalanced, 4.8k Ohms

Power requirement: 

Passive (no power needed to operate)

Size:  

3.3" wide, 2" high, 5" deep (84mm x 48mm x 127mm)

Weight: 

840g (1.85lbs)

Warranty: 

Transferable 3 year warranty

FEATURES

1.  180° PHASE INVERT: Flips the electrical 

polarity of the output to compensate for 

amps or effects that invert the signal.

2.  GROUND LIFT: Disconnects ground at 

the balanced inputs to eliminate hum and 

buzz caused by ground loops.

3.  XLR INPUT: Balanced, low impedance, 

line-level input. Used to connect the 

output from a recording system. 

4.  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!

5.  ¼" TRS INPUT: Balanced,  low 

impedance, line-level input wired in 

parallel with the XLR. Used to connect the 

output from a recording system.

6.  ¼" OUTPUT: Unbalanced, high 

impedance instrument-level output 

connects to guitar amps and effect 

pedals. Transformer isolated to prevent 

hum and buzz caused by ground loops.

7.  MUTE: Depress to silence the ¼" output.

8.  FILTER: Three position switch used to 

select between preset EQ filters.

LOW-PASS (hi-cut): 

-3dB @ 1KhZ

HIGH-PASS (low-cut):  

-3dB @ 180Hz

FLAT: bypasses the  

filter circuit

9.  LEVEL CONTROL: Sets the reamping 

output level to your amp.

10.  STEEL CONSTRUCTION: Radial 

‘standard’ heavy-duty 14-gauge steel 

construction for added durability and extra 

shielding against electromagnetic fields. 

11.  BOOK-END DESIGN: Creates protective 

zone around connectors, switches and 

potentiometers for added protection.

12.  BAKED ENAMEL FINISH: Keeps your 

Radial JCR Reamp looking great for 

years! 

www.rad

ialeng

.com

Radial Engineering Ltd.

1845 Kingsway Ave. Port Coquitlam, BC  V3C 0H3, Canada

Tel: 604-942-1001  •  Fax:  604-942-1010  

email: [email protected]

True to the Music

Radial Engineering Ltd.

Radial JCR Reamp user guide - Part #: R870 1042 00 / 09-2023 

Subject to change without notice, copyright © Radial Engineering, all rights reserved

RADIAL ENGINEERING 3 YEAR TRANSFERABLE LIMITED WARRANTY

RADIAL ENGINEERING LTD. (“Radial”) warrants this product to be free from defects in material and workmanship 

and will remedy any such defects free of charge according to the terms of this warranty. Radial will repair or replace 

(at its option) any defective component(s) of this product (excluding finish and wear and tear on components under 

normal use) for a period of three (3) years from the original date of purchase. In the event that a particular product 

is no longer available, Radial reserves the right to replace the product with a similar product of equal or greater 

value. In the unlikely event that a defect is uncovered, please call 604-942-1001 or email [email protected] to 

obtain an RA number (Return Authorization number) before the 3 year warranty period expires. The product must be 

returned prepaid in the original shipping container (or equivalent) to Radial or to an authorized Radial repair center 

and you must assume the risk of loss or damage. A copy of the original invoice showing date of purchase and the 

dealer name must accompany any request for work to be performed under this limited and transferable warranty. 

This warranty shall not apply if the product has been damaged due to abuse, misuse, misapplication, accident or 

as a result of service or modification by any other than an authorized Radial repair center.

THERE ARE NO EXPRESSED WARRANTIES OTHER THAN THOSE ON THE FACE HEREOF AND DESCRIBED 

ABOVE. NO WARRANTIES WHETHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO, ANY 

IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE SHALL EXTEND 

BEYOND THE RESPECTIVE WARRANTY PERIOD DESCRIBED ABOVE OF THREE YEARS. RADIAL SHALL 

NOT BE RESPONSIBLE OR LIABLE FOR ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR 

LOSS ARISING FROM THE USE OF THIS PRODUCT.  THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, 

AND YOU MAY ALSO HAVE OTHER RIGHTS, WHICH MAY VARY DEPENDING ON WHERE YOU LIVE AND 

WHERE THE PRODUCT WAS PURCHASED.

True to the Music

Order No. R800 1030 00

User Guide

Radial Engineering Ltd.

JCR Reamp

®

 Users Guide

2

3

10

11

JCR Reamp

®

 Users Guide

®

TM

TM

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8

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12

XLR BAL. 

LINE INPUT

FILTER

Low-Cut

Flat

Hi-Cut

1

2

3

180°

TRANSFORMER

POLARITY

REVERSE

GROUND

LIFT

MUTE

1/4” TRS

BAL. / UNBAL. 

LINE INPUT

LEVEL

1/4” TS

UNBAL. 

OUTPUT

US Patent # 6,005,950

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