Jason Victor Serinus

Add the phrase, "with extended low bass" and you've got a sense of the sound in the Krell room. Paired with Magico A5 loudspeakers ($28,000/pair), Krell's Vanguard DAC ($7500), KSA-i400 stereo amplifier ($36,500), and Anti-Cables, the system produced deep bass drums with excellence.

Krell used CES to launch no fewer than seven iBias high-efficiency class-A amplifiers. Called, by the company, "the most revolutionary design change in its 33-year history," the amps consume far less energy than traditional class-A amplifiers. iBias technology also reputedly eliminates crossover distortion, allowing low-level details, subtleties and spatiality to emerge without restricting dynamics. It does so by operating output transistors constantly at full power, so they never shut off, and adjusts power going to them according to demands.

Thanks to PS Audio’s P5 Power Plant ($3495) and Nordost’s Norse cabling, Krell’s Phantom III preamplifier ($5499, or $7000 w/optional 24/192 onboard DAC), S-350A CD 24/192 CD player ($2500), EVO 2250E amplifier ($8000), and Krell Connect ($3500) were enabling Magico’s S-1 loudspeakers ($12,600/pair) to perform wonderfully. In the room sponsored by Audio Video Logic of Iowa, a Red-Book file of Stevie Ray Vaughan’s “Tin Pan Alley” had great slam and midrange power, with the guitar singing clear and free in a deep soundstage.

A speaker brand new to me, Kroma Atelier from Spain, caught many an eye and ear with the US premiere of their small black Mimi Xtreme standmount loudspeaker ($12,600/pair in white, $13,860 in black, left in photo) with Mimi stands ($3600/pair). Introduced by Tim Lukas's Matterhorn Audio Group of Boston, whose other brands include FinkTeam and Creek, the speaker is claimed to work with amps that output as little as 15Wpc. With a 6.5" midrange with proprietary cone, and a special AMT neodymium-ribbon tweeter designed by Mundorf to Kroma Atelier's specifications, the speaker boasts a 4 ohm nominal impedance, an 88dB sensitivity, and a frequency response of 30Hz–25kHz. The design of its woofer's surround (below) is intentional—it is possibly one the new Purifi drive-units.