Best "pseudo" multi channel from 2 ch sources

I ahve an Emotiva UMC-1 preprocessor ($699 brand new with 5 year warranty) and it does a very good jo of synthesizing multi-channel from 2-channel sources. Just engage either Dolby PLIIx (Music or Movie) or DTS:NEO6 and have at it. Both of these can sound quite good with a proper source. I have found the effects to be quite pleasing and well worth a listen.

However, the UMC-1's DSP modes (Stadium, Hall, CLub, etc.) sound like real crap, zI never use them.

-RW-

I had completely forgotten about the SST Trinaural Processor even though I reviewed it!

http://www.stereophile.com/musicintheround/904music/index.html

Kal

I have not heard any multi channel expansion I liked done in the digital domain. However, the McCormack MAP1 analog Multi channel preamp expands 2 channel to 5.1 in the analog domain (called Ambiance Retrieval Mode [ARM]), and I really liked it. I have since moved on for my main system, but I still have the MAP1 in my secondary system and enagage it on 80% of 2 channel sources to great effect. The same feature is implemented on the Conrad Johnson MET1 multi channel. The MAP1 sells used for less than $1,000 and in my view its a steal.

Keep in mind that in order to do the expansion in the digital domain in a processor you would either have to use a CD transport and the DACs of the processor for redbook, or digitize the analog outputs of your CD player. Both options are far from optimal.

In my estimation, you will get better results for redbook for less money by staying in the analog domain and use a MAP1. For multi channel you would get a BR player with stellar analog outs. The Pioneer BDP-09 is a very good candidate (no SACD). Of course, this setup will not give you room EQ.

If I was going to listen to 2 channel music in a multi channel config, I would buy a Anthem. I would get the avm 40 model. Anthem Logic is really good at what you are wanting.

The Anthem is good at 2 channel as well.

I also like the SST Trinaural Processor. I wrote a review here on Audiogon.

With rare exceptions derived rear channels don't work well. IMHO Three (L CTR, RT) with the SST Trinaural Processor is a big improvement over 2 CH, but four or five out of two is too much to ask.