Hegel H150 Integrated Amplifier Officially Announced
Sonus faber Announces Amati Supreme Speaker
FiiO M27 Headphone DAC Amplifier Released
Audio Advice Acquires The Sound Room
Sponsored: Pulsar 121
CH Precision and Audiovector with TechDAS at High End Munich 2025
KLH Model 7 Loudspeaker Debuts at High End Munich 2025
Marantz Grand Horizon Wireless Speaker at Audio Advice Live 2025
Sponsored: Symphonia
Where Measurements and Performance Meet featuring Andrew Jones
Sponsored: Symphonia Colors

LATEST ADDITIONS

Busts & Booms

<I>"Everyone I know used to sit in front of the stereo and listen to music...Now no one I know, except for us lunatics, listens to music the way one would watch a movie on TV."</I>&mdash;from The Audiophile Network

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Pass Labs Aleph 3 power amplifier

Everyone's going crazy for single-ended power amplifiers. What's the big deal? What is it about these relatively low-powered contraptions that could make everybody so nutso? And has Pass Labs' Nelson Pass completely lost his marbles, selling a 30Wpc amplifier for a price that can buy a high-quality 200Wpc amp? Isn't that 200W amp seven times as loud&mdash;and seven times as <I>good</I>&mdash;as a 30W amp?

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Aerial Acoustics Model 5 loudspeaker

One of the fundamental tenets of high-end audio is that a loudspeaker's bass output should be appropriate for the listening room's size. The smaller the room, the less bass the loudspeakers should produce. Any manufacturer of large loudspeakers who has set up such a system in a CES hotel room can attest to how difficult it is to avoid boominess in a tiny space.

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Linn Tukan loudspeaker

One of the fundamental tenets of high-end audio is that a loudspeaker's bass output should be appropriate for the listening room's size. The smaller the room, the less bass the loudspeakers should produce. Any manufacturer of large loudspeakers who has set up such a system in a CES hotel room can attest to how difficult it is to avoid boominess in a tiny space.

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Krell Full Power Balanced 600 power amplifier

Latest and largest in Krell's current range of power amplifiers, the 600Wpc, $12,500 Full Power Balanced 600 joins the 300Wpc FPB 300 ($9000) and the 200Wpc (originally 150Wpc) FPB 200 ($5900). All are single-box stereo chassis and are specified as "Full Power Balanced"&mdash;I think to distinguish the essence of these designs from ordinary stereo amplifiers operated in balanced-bridged mode, usually with impaired performance. The FPB 600's speaker output is balanced; <I>ie</I>, neither "positive" or negative" terminals are connected to ground or the amplifier chassis. (Note that no speaker switches or headphone adaptors, which often have joined channel grounds, may be used, as they will short the outputs.) The output terminals are electrically at 0V, but float above the chassis ground.

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Ayre Acoustics K-1 preamplifier

The Glimmer Twins were right: If you can't always get what you want, sometimes, you just might find, you get what you need. Take Ayre's K-1 preamplifier, for instance. I'd been trying to get Ayre to send me their $3750 V-3 power amplifier since the moment I started writing for <I>Stereophile</I>; after approximately a year and a half, I finally got a phone call from then Marketing Director Bruce Van Allen.

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Audio Odyssey: Ken Kreisel of M&K

With 25 years of experience in sound recording, audio retailing, and loudspeaker design and manufacturing, Ken Kreisel has insightful things to say about just about any audio-related subject. The president of Miller & Kreisel Sound Corp. (M&K), Kreisel pioneered the satellite/subwoofer speaker concept that laid the groundwork for the home theaters of today. M&K's most recent offering&mdash;the S-150THX surround speaker system&mdash;is reviewed in this issue (see <A HREF="http://www.stereophile.com//loudspeakerreviews/137/">archived article</A>).

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