Concerto pre-amp vs. the Synergy IIi

if you have a Synergy IIi, take it to the next step and run it on batteries like I have. Your rowland dealer can order a custom cable and use two Optoma Marine Batteries! You can see the wiring of the batteries in my system photos of the Optoma Battiers.

Talk about Silence and no expensive Power cables required!

The latest Preamp doesn't have an external power supply. I haven't listened to it to compare it, but it does retail for a lot less than the Synergy IIi did.

As to running the synergy on batteries requires two marine batteries (I use Optoma Marine batteries from Costco $139 each for the deep discharge), I use two motorcycle battery tenders for each attached to a switched outlet that I turn off when I want to listen.

There was a review of the Synergy IIi and then a followup where running the Synergy IIi on the BPS battery supply made it 95% of the Coherence II in performance. I can't remember which magazine, I found it online.

My Rowland dealer ordered the cable from Rowland (took a while because it was custom made by Jeff) and got the wiring diagram for the hookup from his customer that was running the setup.

I don't have the battery wiring hookup (the napkin has disappeared somewhere) so I can't be much help, talk to your local Rowland dealer.

Raquel: It is a subtle thing but it was a WOW in my system because of the noise on my powerlines that I use. It was more natural than running on my PS audio and about the same blackness, it truely makes you forget about the preamp in my system