Need help with Surround processor

I don't know about similar, but you might want to take a look at the Primare pre/pro. It retails for around $4k and I've compared it's sonics are very competitive to the Pass Labs X-1 and X 2.5 solid state 2-channel preamps as well as other more and less expensive preamps.

The Pass Labs preamps are imo excellent preamps for the money.

Primare is a Swedish co. that has been around for quite some time. Their products in the 90's were quite esoteric and expensive. They appear to have toned down the esoteric part and the price but not the performance.

It's a minimalist pre/pro with true analog when in the 2-channel by-pass mode.

-IMO

Meridian 568, Lexicon, Proceed (discontinued), Outlaw, Anthem, B&K. There are many. Not all have analog pass thru's.

Of course there is the Casablanca and Meridian 800 series.

I love my Aragon Stage One. analog bypass was the most important feature. I can tell the difference on two channel material, which is very important to me. less noise, better channel separation, better frequency balance. the other features of the processing are nice too.