Solid State Power Amp Reviews

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Ayre MX-R monoblock power amplifier

Recently, on the Stereophile Web">http://forum.stereophile.com/forum/ubbthreads.php">Web forum, reader Natal commented on Robert J. Reina's review of the Creek">http://www.stereophile.com/integratedamps/107creek">Creek Audio Destiny integrated amplifier in the January 2007 issue: "Maybe it's just me but I've never found any piece of electronic equipment sexy."

Muse Model One Hundred power amplifier

"I've know I've seen this amp before," I thought to myself when I lifted the $1200 Muse Model One Hundred out of the box, and I wasn't thinking of Robert Harley's review of the identical-looking Muse Model One Hundred Fifty reviewed in January 1990, either. No, I'd seen this amp before, somewhere else, in some other magazine, but with a different manufacturer's name.

Rotel RB-991 power amplifier

As a reviewer who has focused on seeking out high-quality audiophile gear for cost-constrained readers, I'm embarrassed to say that the flagship RB-991 stereo amplifier is the first Rotel product I've had in my house. (To be fair to myself, this 38-year-old family-owned company did not develop a large US market presence until this last decade.)

Classé CA-3200 three-channel power amplifier

The last Classé power amplifier I reviewed, back in November 2004, was the imposing Omega">http://www.stereophile.com/solidpoweramps/1104classe">Omega Omicron monoblock ($20,000/pair), which made glorious sound with the Revel">http://www.stereophile.com/floorloudspeakers/302">Revel Ultima Studio speakers. But things change. First, my reference speakers are now B&W">http://www.stereophile.com/floorloudspeakers/1205bw">B&W 802Ds. Second, my system now has three front speakers, supplemented by two B&W 804S speakers for surround sound. While a quintet of Omicrons would undoubtedly be dandy, five such monoliths would take up so much space that I'd be wondering about their effects on the room's sound. With so many channels, it seemed time to investigate whether a multichannel amp could carry the load.

Krell Evolution 202 preamplifier & 600 monoblock power amplifier

Talk about going from the ridiculous to the sublime. One day I'm reviewing the $139 Sonic">http://www.stereophile.com/solidpoweramps/1006sonic">Sonic Impact Super T power amplifier, and the next day Krell Industries delivers their $10,000 Evolution 505 SACD/CD player, $15,000 Evolution 202 preamplifier, and their $30,000/pair Evolution 600 monoblocks.

Threshold SA-1 monoblock power amplifier

Eleven years ago, Threshold Corporation entered the high-end audio market with the first amplifier ever to use sliding bias (footnote 1) in its output stages. Some 10 years later, Threshold spawned another innovation: their so-called Stasis circuitry, which yielded the S-series amplifiers. The SA-1 and its lower-powered sister SA-2 are the latest from Threshold, and are the first Threshold amps to abandon sliding bias for straight class-A operation. Both use the Stasis circuit.
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