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JVC 4VR-5456

AM/FM 4-Channel Stereo Receiver with CD4 Demodulator

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JVC 4VR-5456


BTL is a JVC original. With it you can play back 2-channel stereo with double power.

This is done by linking the power amplifiers so that when you are playing 2-channel sound two of the power amplifiers do not remain idle; by internal connection they are reconnected so that each of the two channels passes through two power amplifiers.

The 4VR-5456X is ready for the day when FM discrete 4-channel broadcasting starts.

At the moment some 2-channel FM broadcasts are made in matrix 4-channel formats; these can be heard as 4-channel by selecting the appropriate matrix decoder with the mode selector.

When 4-channel FM broadcasting starts, connect a demodulator to the jacks on the rear panel, remove the plate holding the FM 4-channel switch in its off position and switch on.

Connect the FM DET OUT jack on the rear panel to the demodulators input jack and the demodulator's output jacks to the FM 4-channel input jacks.


Tuning range: FM, MW

Power output: 100W/ch (stereo), 43W/ch into 8Ω (quadraphonic)

Frequency response: 10Hz to 50kHz

Total harmonic distortion: 0.5%

Damping factor: 40

Input sensitivity: 3mV (MM), 150mV (line)

Signal to noise ratio: 70dB (MM), 75dB (line)

Output: 150mV (line)

Speaker load impedance: 4Ω to 16Ω

Dimensions: 180 x 513 x 405mm

Weight: 20kg


schematics   English -

service manual   English -

instruction/owners manual   English -

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Reviewed Feb 19th, 2016 by bissimo

Very powerful unit with lots of features. Decodes SQ and CD-4 internally. Sound isn't as warm as some other vintage units, but it's still very nice.

Reviewed Jan 15th, 2015 by putsche

I bought this unit new in the 70's. Used it in a home recording studio for powering play back speakers as well as general home use. It worked great for years but is having problems driving speakers now. The output is cutting out periodically. I would like to find someone who could repair it if possible.



JVC 4VR-5456 adjustment

No disrespect, this is a great service manual and a great website in general. But page 11 of the service manual is missing and I'd like to believe that the information for setting the idiling current and other driver amp voltages is on page 11 or I hope it is because it is not on any of the other pages and since page 11 is not included in the file page 11 is looking like my best bet. If page 11 is available or if anybody has the idling current or any other driver amp voltages or adjustment procedures for the JVC 4VR 5456 and that information could be passed on to me it would be GREATLY APPRECIATED!

Thanks in advance,

CamayJ's picture

JVC 4VR-5456

We have one of these units and are the original purchasers. I wanted to list it on EBAY and am wondering: 1) if you have any idea of the value, 2) if not, where do you suggest I look, 3) do you mind if I use some of the above description in my listing?
Thanks in advance!
Camay Jennings

re: JVC 4VR-5456

To me the unit is better than what I can find now days if everything works. It has ample power and connections to allow many inputs and outputs plus will drive 8 speakers (2 sets of 4) or other combinations. I particularly like the graphic equalizers located on each set of 2 channels (2 for front and 2 for back). All that aside I currently need someone who knows how to diagnose my unit so I can get it back in use. Current value... most people want things that connect via USB or HDMI or Blue Tooth. This is only RCA phono connectors so its value will be in the beholder. For me I want this combination of features. The new setups, even the nice ones, try to automate and connect via WIFI and control everything in the house automatically. I would rather handle what is driven manually rather than add another remote to the assortment that now control all the TV's, VCR's, DVD players, Cable Boxes, Satellite boxes, or Bose Speakers.

This website is not affiliated with or sponsored by JVC. To purchase 4VR-5456/4VR-5456X spares or accessories, please contact the company via their website or visit an authorised retailer.