What’s an un-encoded CD?

Dick Frederick wrote:

I am an old boy who participated in this area for years, became inactive, and now wish to equip a room for listening (music). I see that separate components have largely been replaced by receivers, and these units are really intended for surround sound for video, not music. So I looked through my old stuff and found a Sony Model 2000 Preamp, circa 1967, a Yamaha DSP-1 processor, and a multichannel power amp. Everything worked except the DSP-1 processor.

My goal is to add a bit or ambiance, akin to a concert hall, that was effectively simulated by the DSP-1.

Can anyone recommend a current stand alone box that can replace a DSP-1 or suggest some sort of work-around?

I am interested in listening to a collection for un-encoded CDs, most of them elderly, like me.

Thank you,

Most who wish to add ambience to dry recordings use some version of DAW (Digital Audio Workshop) software and a PC these days. If you want to stick with a hardware solution the Yamaha DSP-1 can still occasionally be found for sale on the used market.

Professional hardware solutions include multi-effects processors from several different companies. Yamaha's most recent model is the SPX2000, which is also discontinued, but widely available on the used market.

I had the Audio Pulse Model One digital time delay or was it Model Two, a very long time ago, that one had variable delay outputs for center channel, two front channels, two rear channels, two side channels, tons a fun! That was about the time I had some Rogers LS3/5a speakers with two subs. Of course the only problem was you need a amplifier and speakers for each separate channel and set of channels.