hifi engine

Manual Library / Pioneer

Pioneer SR-202

Solid State Reverberation Amplifier (1970)

add a review (1 review)

Pioneer SR-202


The reverberation amplifier is one of Pioneer's unique products.

Unlike ordinary high fidelity systems that use single scatter systems, the SR-202 employs a double scatter system involving the merging and blending of two channels in a complex composite sound.

The direct signals from the pick-up that have been fed through the preamplifier, and the reverberation signals, which are comprised of the signals of the opposite channels to which reverberation effects have been added, are merged and blended to result in a composite sound that includes echoes and reflected sounds.

Two time delay circuits eliminate any peaks or dips in reverberation so what you hear is absolutely stable and has tremendous depth and brilliance.

The SR-202 reverberation amplifier can be used to increase the naturalness of your own recorded voice, radio broadcasts, records or tapes.

It can be coupled with your own system's amplifier (with tape monitor jacks) in various ways, to provide reverberation effects to the speakers only, or to just the recorded sounds, or both together.

You can even control two tape recorders at the same time by switch operation for simultaneous recording, recording with reverberation, playback etc.

In fact you can connect the SR-202 in practically any way you like for the effects you want. The system can be converted back to normal operation any time with the flip of just one switch.


Input level: 200mV (3V maximum)

Output voltage: 330mV

Harmonic distortion: 0.2%

Frequency response: 20Hz to 35kHz

Signal to noise ratio: 65dB

Reverberation time: 1.9 to 3.2s

Dimensions: 300 x 115 x 250mm

Weight: 4.0kg

Semiconductors: 11 x transistors, 2 x diodes


Related Catalogues

Stereo Components

If you have any problems opening files please read the download FAQ. All files are provided under strict licence and reproduction without prior permission or for financial gain is strictly prohibited.

If you have additional documentation please consider donating a copy to our free archive.


 Login or register to post reviews

Reviewed May 10th, 2016 by meisterman

Great information!



This website is not affiliated with or sponsored by Pioneer. To purchase SR-202 spares or accessories, please contact the company via their website or visit an authorised retailer.