Two Sunfire Signature's wired together?

Lawdog, I don't understand how you have those two Sunfires wired up. I would appreciate if you could go into detail. If I get a second Sunfire, I will not be biamped. Thanks in advance.

Can you discribe the difference you hear going from one Sunfire to two? Is there any difference at moderate listening levels?

Lawdog, Let us know how it turns out.

Nobody?!

Still hoping.

I have found this review which is so very exuberant, that i thought i might find someone here who has done the same thing with these amps. as to see if you had a simular experance or not.
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I have owned a single Sunfire stereo signature amp for a few months and had read on the Sunfire website that for a real treat, use TWO of these amps in a BI-WIRE, MONO-BLOCK MODE. Essentially you are using them as mono-blocks, each amp now putting 1200 WATTS INTO 8 OHMS AND 2400 INTO 4 OHMS!!!!!

OH MY G*D!!! WHAT AN AMAZING SOUND!!! TRULY AN AMAZING EXPERIENCE!!

In this configuration, I used them to drive my B&W 802's using a Sunfire Tube preamp and an ARCAM Alpha 9 CD player with Analysis Plus Silver Oval speaker cable.

The sound is remarkable. The music now fills the room with such presence and dynamics that it is like nothing I have ever experienced. It is as if you went from watching a live program on television to being suddenly put in the show, live. The sound is fast, clean, tight and has amazing imaging with each instrument occupying a solid area in the ENORMOUS soundfield. I'm not saying it's like being at a live performance, it just creates such a dynamic and detailed soundstage that the music comes alive in a way that has to be experienced to be believed!

I was so amazed with their performance in this set-up that I had a friend of mine who is a published musician/composer (RICHARD SOUTHER), come over and listen to some of his CD's. He was even more blown away than I was, due to the fact that he has spent hundreds of hours in recording studios, and had heard his music on high end mastering systems, yet he said he had NEVER heard his music sound as amazing as with this set up.

He had heard the same system with just the one Sunfire Signature in regular stereo mode, and had enjoyed it, but he could not believe the difference it made adding the second. We sat and listened with our mouths agape for almost two hours. Afterwards he said the experience inspired him to go back and make more music just to hear it on my gear!!

When you compare the price of two of these amps to just one Krell or other high end/high wattage amp...you can't touch them.

I urge any prospective buyers and all current owners of these amps to try this configuration if you can. YOU WILL BE BLOWN AWAY!!!! I GUARANTEE IT!!!

Just remember to follow the instructions given in the Sunfire manual closely and to keep the volume/gain way down when you start!
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I would like more reviews but can't find any, except one other that i posted on the thread titled (Has anybody done this?)

Arthursmuck...I have one, two ch. Signiture; but i will saw this...i went from 200 watts per. ch., to 600 watts per. ch. and the difference in sound is obvious at all volume levels, but it could be the design difference of the two amps. and not the added power or both.

Here is the other review i found>
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Randy Bingham at Sunfire urged me to try a second Sunfire Signature Amp in a vertical bi-wire configuration. This means you use two Sunfire Signature Amps. Each is fed an unbalanced signal to the normal input then the lab input for left and right are bridged with a single (mono) interconnect. If you bi-wire or tri-wire your speakers as in the case of my reference Cello Stradivari Legends, you should connect the high/mid leads to the current output while using the voltage output for the bass leads. Got it? Good. Don't worry it took me a minute to figure out too.

The best way I can describe the change in sound is to make a car analogy. I drive a six-cylinder VW GTI. It meets my budget and my need for speed which is a nice tradeoff. The difference a second Sunfire Signature Amp made is like trading in your GTI in on a Porsche 911. The extra power elevates the music to a whole other emotional level. Yes, I know there is an extra $3000 plus an interconnect included in the price of this upgrade, however it is worth it. And who said you ever had to buy it all at once?

The sound of the vertical bi-wired Sunfire Signature Amps multiplied everything good about the sound of the amps. The best test for the effect of the second amp was using the new MCA remasters of Jimi Hendrix's Axis Bold as Love. On "Little Wing," Jimi's guitar floated in space, something I have heard in few systems. The power of these amps was frightening. I don't believe in inefficient loudspeakers. I like my Cello's, WATT's and Puppies and even slightly less efficient transducers like THIELs and Martin Logans, yet these Sunfire Signature Amps feel like they can drive any difficult load from Apogee Grands to a Lincoln Town Car.
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