Contemplating other amps

I would add the PS Audio HCA-2 to your list. I have big parties at my home every month or so and have lots of European friends, and that means my 87dB full range speakers blast Techno from 1:00am to 4:00am at dance-club volumes on the make-shift dance floor that once was my listening room. The HCA-2 is the ONLY amp I've owned (among many more expensive amps, some putting out 250-300wpc) that could run at full tilt all night without even breaking a sweat. I'm sure it could handle "real music" and any movie thrown at it at the same levels. It never gets warm, never shuts down, never clips, and all the while sounds highly refined, silky smooth yet impeccabley detailed and bass performance that no amp under $6K I've heard can compete with, at least in my setup. There supposedly is a multichannel version of their digital amp coming out, but haven't been following the specifics.

How weird is this. In head to head listening tonight, with me leaving the room and my freind setting up between the Sunfire Cinema Grand Signature 2 and the Bryston 4BSST and BSST, we both preferred the Sunfire when run through the current (versus voltage) speaker outputs. This was judging on detail of highs, mids and lows, strength/power, and overall soundstage. Just goes to show you no matter what you beleive, read, or are told, your ears will show you the way. Dude, I'm gettin a Sunfire!

Arthur: The Sunfire offers added versatility in the fact that it allows you to bi-wire your speakers and select the type of sound for each section of the speaker individually. In most installations, especially those with bright speakers ( metal domes ) or speakers that come across as being somewhat lean, i've found that using the current outputs for the tweeter and the voltage outputs for the woofers works best. While one might think that the "current" taps would work best for the woofers, just as i had previously thought, the names of each tap have more to do with how Mr Carver labeled them than what they are really doing. In this respect, they operate in what is somewhat of a backward fashion from what one would think.

If you do end up purchasing the Sunfire, i would encourage you to do some further experimentation and see what taps work best for your specific speakers and personal tastes.

Either way, i'm glad that you have found something that you like and actually did so trusting your own ears in a "side by side" comparison. Many people "dis" the Sunfire products due to associating them with earlier Carver and Phase Linear products, but they really are quite different in design and implimentation. Sean
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PS... The Sunfire's work best in balanced mode and benefit from elevating them up off the support structure. They radiate the little bit of heat that they do generate from the bottom, so increasing the air-flow underneath them by any means possible is recommended. You might also want to call Sunfire and find out if the design revisions and upgrades that were initially only available on the 17" architectural series have been implimented into the full sized versions also. I was told by Robert at Sunfire tech support that the Architectural series originally had some new design innovations in them but i forgot to ask if these were carried over to the "full sized" versions. Prior to laying down the cash, you might also want to measure the space available in rack as the full sized versions have a hard time or simply won't fit in some racks at all due to their 19" width. Not only are the faceplates 19", the entire chassis of the amp is too. The Architectural series, which have all of the updated design revisions, are only 17" across. That does offer less heat sinking though, so if you've got the room and the full size models have been updated to the same level of performance, you might want to go that route.

Thats great Arthur, you are so right, ultimately its your ears. I am happy you found an amp and a very nice one at that. I bet a room full of Nautili and that monster amp can really jam.

The voltage/current selection is great, I love to tweak and test.

That is a 7 channel amp right, so did you biamp the N802s, I bet they really sing with 800+ watts. Whew. Sean has a great suggestion for further tweaking, biamping and switching current/voltage from high to low, or vice versa, aww man I am jealous, all that tweaking.

Enjoy

Ahhh yes the tweaking ahead. It'll take 2-3 weeks for delivery on the 7-channel, they're lending me a 5x425 in the meantime. They also through in a CTG III at a ridiculous price because I'm a great customer. Gonna enjoy all that setup and tweaking also. Hey, you guys have been a real help and support, thanks. I'll keep you posted on the progress.