J. Gordon Rankin, always at the forefront at computer audio technology, had paired Wavelength's beautiful-sounding electronics with Vaughn Zinfandel loudspeakers and AudioQuest top-of-the-line Sky interconnects and Meteor speaker cables to create a system with an absolutely gorgeous midrange. That is no small accomplishment, folks.

The Audio Alternative of Fort Collins, CO had the perspicacity to mate Wilson Audio's new Sophia III speakers ($16,900/pair) with Rega Research Limited's Osiris Integrated amplifier ($9000), Isis Valve CD player ($10,000), and P7 turntable w/Lyra Delos MC cartridge ($4195). The sound was very mellow and inviting. It was the kind of presentation that would make many an audiophile—certainly this one—welcome the Sophia Series III into their home.

Oh my, did Muddy Waters' <I>Folk Singer</I> sound good. I hadn't heard this audiophile classic in many a year, and my time in Mike Garner of TweekGeek.com's room convinced me that it was time for an extended revisit. Garner achieved gorgeous clarity and marvelous quiet on this recording. As I wrote in my notes, "A very special moment."

Tweak Studio, the Genesis dealer in Washington state, paired the new Genesis G7.1f loudspeaker ($8000/pair) with the Balanced Audio Technology (BAT) Vk-3ix preamp and VK 55SE amp. The match was fortuitous, with the BAT's tubey midrange bringing out the loudspeaker's considerable best. Completing the partnership were the SOTA Sapphire Series 5 turntable ($2700) with SME 4 arm and Denon 103 cartridge; Kosmic server w/500GB hybrid storage ($2295) and a bunch of options; Absolute Fidelity Component Interface cable ($1800/pair), Loudspeaker Interface cables ($3000/pair); and Power Interface cables ($1800); and a host of Kosmic Equipment stands (the stand base shelf is $1600).

The Audio Alternative had a number of rooms on the 9th floor of the Denver Marriott Tech Center Tower, the largest of which boasted an impressive set-up. Audio Research Corporation's Anniversary Edition Reference Preamplifier ($24,995), Reference 210 amplifiers ($19,900/pair), Reference Phono 2 ($11,995), Reference CD8 ($9995) and DAC 8 ($4995) were dancing with Vandersteen 7 speakers ($45,000/pair); Linn LP12 turntable, Ekos SE tone arm and Lyra Titan cartridge ($24,000 total); AudioQuest Wild Blue Yonder XLR interconnects ($16,800 for 26'). Wildwood speaker cables ($11,600 for 8'), NRG WBY AC power cords ($4400 for 12'), and WBY XLR interconnects ($4200 for 3'); and Harmonic Resolution Systems SXR 1921 isolation stand ($4995), M3X 2123 isolation base ($2895), and R1-1921 ($1095). (Whew!) The room was full of people making too much noise; the sound loud (there was no choice), impressively big and solid. Short of blowing a whistle, there was nothing I could do except collect literature and promise myself that at the next show, I'll finally get a chance to hear the Vandersteen 7s that received raves at the 2010 CES.

Doshi Audio of Virginia was proudly displaying their handcrafted Jhor monoblock amplifiers ($18,995/pair) and Alaap V2.1 full-function preamplifier ($14,995). Partnered with the oft-encountered Wilson Audio Sasha, and Transparent XL series cabling, the system excelled in midrange strength as it threw an exciting soundstage. Although lacking ultimate bass control, the system rendered take-no-prisoners rock in accurately brash and brazen fashion.

In his Avatar Acoustics room, Darren Censullo put together a system featuring a Feickert Analogue Blackbird turntable ($7495) with Feickert’s DFA 10.5 tonearm ($1000) and Lyra Kleos cartridge (review to come from Michael Fremer), Abbingdon Music Research (AMR) CD-77.1 CD player ($10,995), AMR PH-77 phono preamp ($11,995, recently reviewed by Michael Fremer and John Atkinson), and AMR AM-77.1 integrated amplifier ($9995). Speaker cables, interconnects, and power cords were Acoustic System International’s LiveLine ($995/1m interconnect; $2100/2.4m cable; $1195/1.8m power cord). The gear was supported by an Acoustic System 3-shelf rack ($3500) and Acoustic System International Top Line feet ($750). Power distribution came from an Avatar Acoustics Mach 4 ($1995) and Avatar Acoustics Afterburner 8 wall outlet ($80). Acoustic System International Resonators were carefully placed around the perimeter of the room, near where the walls met the ceiling.

The Rosso Fiorentino Volterra, represented in the US by <a href="http://blog.stereophile.com/rmaf2010/avatar_acoustics/">Avatar Acoustics</a>, uses a crossover circuit placed in an isolated and damped box within the center of the speaker's cabinet. Here's a look inside.

Sjofn HiFi made a big splash at our <a href="http://blog.stereophile.com/he2007/051307Sjfon/">Home Entertainment 2007</a> show with the Guru loudspeaker, and the company hopes to attract greater attention with their new monitor, “the clue.” I walked into the room just as a thunderous bass note was struck. “Whoa,” I thought to myself as I took the last remaining seat in the packed demo. The little Sjofn speakers ($999/pair) were partnered with electronics from Norway’s impressive Hegel: CDP4A CD player ($4500) and the 200Wpc H200 integrated amplifier ($5000). The system was small, but it produced nothing but big, room-filling sound. There was that well-controlled, thunderous bass and startlingly quick transients.