Stereo amplifiers with HT-bypass- 

The official list.

The nature of a processor-input is to make it possible to combine a higher end stereo setup with a not so high end hometheater setup. Obviously the person would prefer this combined setup is a music-lover. The author of this article has systematically collected a list of amplifiers with Processor-input for almost a decade. It is not to our knowledge that a similar list is published elsewhere.

This kind of input is known under many different names, like Processor-input, Theater-input, Theater-bypass, Unity gain and Fixed-gain are all names used. The input is used for sending the signal from a surround receivers left and right front-channel via pre-out to the processor-input, which has a fixed gain.
British Arcam was among the earliest producers of Hi-fi to implement a processor-input in their amplifiers in the now long gone Alpha series. But we suspect Mark-levinson to be the very first producer.
In order to be qualified to a place in our list, we demand that the processor-input at least can be selected from the front panel, even though remote selection is preferable. What we do not accept, is solutions that involves operations at the back of the amp to choose the processor-input, except for installation procedures.
The solution for all amps listed here has been controlled by checking the online user manual, or other written documentation. The list both contains current and past products.
Some of the amps listed below have links to review of this product at audiophile.no. For the time being thes reviews are only available in Norwegian.

We are certain that som amplifiers are missing at this list, and we highly appreciate hints about missing amplifiers.

Written by Karl Erik Sylthe