Jason Victor Serinus

Quasi-secreted in the front half of his father Dan’s room, Bret D’Agostino showed off the rethought aesthetics, better class-A power, and additional refinement of his new BSC 5 series. Available now are the M5 monoblocks ($28,500/pair), which replace the 100M monoblocks; S5 class-A stereo amplifier ($15,000); and optional amplifier Base 5 ($1600). Coming in March is the L5 line stage preamplifier ($14,500). Bret is responsible for the entire design, inside and out, which pushes the envelope of his original design topology. There was no way to audition the products, but I can only assume that they improve upon the sound of their predecessors, some which I enthused about last year at T.H.E. Show.

I found the combination of Jadis and Spendor totally magical. It certainly flattered a CD of a Rossini String Symphony with the warm and special sound that made former Stereophile editor turned publicist Jonathan Scull salivate over Jadis products when they first reached the US from France two decades ago, and impelled me to buy the DA-7 amplifier, a later incarnation of the Defy 7 amp that J10 reviewed.

Once again, Unison Research scored a 10. Distributed by Colleen Cardas and Marc Phillips of Colleen Cardas Imports, the new Unison Research Triode 25 integrated amplifier ($3495) exhibited beautiful sweetness and marvelous delicacy in a Handel piano recording by Murray Perahia (whom I’m going to hear live on February 20, yippee). The amp is switchable between 22Wpc in triode mode and 45Wpc in pentode, and sounds equally fine in both.

Shipping by the end of January, Ayre's new KX-R Twenty preamplifier ($27,500) is a complete redesign of the KX-R that was introduced in 2008. Among the new baby's features: a completely new "Ayrelock power supply" with twice the capacitance as of old, an optimized Equilock gain stage and Diamond output stage, significant part upgrades in all critical areas of the audio circuit, and, of course, "proprietary tweaks." Also playing in the system, which featured Vivid Giya G1 speakers, were the forthcoming MX-R 20 20th Anniversary monoblock amplifiers. There is as yet no retail price, as the parts are being finalized over the next two weeks.