APC AV S15BLK: $730 w/battery backup ★
The S15BLK is a comprehensive power source, conditioner, and controller that features extensible external power and isolated EMI/RFI filtration for each of its outlet banks. Voltage regulation is accomplished electronically and without the hysteresis or rebound problems of slower, motor-driven compensation. Protected even the heaviest of KR's loads while also eliminating gray colorations and intermittent chassis vibration. "The S15 made the bridged eVo6 into an even better power amplifier—a super amp." (Vol.28 No.9 WWW…

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BSG qøl Signal Completion Stage: $2395
The qøl Signal Completion Stage is a remote-controlled, solid-state signal processor with four pairs each of RCA and XLR analog inputs and two pairs each of RCA and XLR outputs. With the qøl activated, JA invariably noted a larger overall sound, with a greater impression of the ambience surrounding performers, increased image depth, and better layering within that depth. From JA's measurements, it appeared the qøl process is basically a variant of the well-known Blumlein Shuffler technique. "You must audition the…
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Sound Devices Model 722 portable audio recorder: $2775 ★
JM raved: "The coolest, most desirable piece of audio hardware I have encountered in a dog's age." The Model 722 is designed as a rugged, high-performance, foolproof, battery-powered portable stereo recorder for electronic newsgathering and video- and film-sound recording. However, with its line-level XLR analog inputs, onboard A/D converters, 40GB hard drive, and headphone amp, the 722 can also serve as a personal stereo. Offers 24-bit recording at up to a 192kHz sample rate. "The apotheosis of…
AI Technology ELGR-8501: $86.47/0.5oz.
AI Technology's ELG-8501 is thermal grease made of more than 80% silver. JM uses a light smear on the mating surfaces of wall-wiring connections to prevent oxidation. He warns: "Never use any kind of silver paste on audio connections such as RCA plugs or amplifier speaker terminals." (Vol.36 No.10 WWW)
Audio Research Tube Damping Rings: $4 each ★
Damping rings for all AR products are now available to the public at large. They're made of a proprietary polymer material that converts kinetic energy to heat,…
Audience Au24 SE: $1190/1m pair
Audience's latest interconnect uses an RCA plug of tellurium-copper alloy with a single, small contact point, meant to reduce the formation of eddy currents. Compared to Audience's Au24 e, the SE version offered superior detail, clarity, timing precision, and image focus, said BD. Au24 e owners can upgrade to SE status for $220. (Vol.36 No.12, Vol.37 No.2 WWW)
Audience Au24: $795/1m pair, unbalanced, $455/additional meter; $1350/1m pair, balanced, $845/additional meter ★
The Au24s had a neutral, relaxed sound, said BD, "with…
For non-operaphiles who cannot imagine that the twitterings of a soprano could ever be as important as the revolutionary rock of The Beatles, some history is in order. Maria Callas (1923–1977) was, arguably, the most important and controversial operatic soprano of the 20th century. Her voice was/is like no other on record: deep and soul-shaking on bottom, somewhat occluded but increasingly fiery as it ascends the scale, and emotionally and viscerally searing on top.
Anything but conventionally beautiful, Callas' instrument was commanded by a supreme…
September 23:
Complete Box Set + Pure 1-CD Compilation
Bellini: I Puritani (1953)
Bellini: La Sonnambula (1957)
Bellini: Norma (1954)
Bizet: Carmen (1964)
Donizetti: Lucia di Lammermoor (1953)
Ponchielli: La Gioconda (1952)
Puccini: La bohème (1956)
Puccini: Tosca (1953)
Puccini: Madama Butterfly (1955)
Puccini: Manon Lescaut (1957)
Verdi: Aida (1955)
Verdi: Rigoletto (1955)
Verdi: Il Trovatore (1956)
Puccini Arias (1954)
Verdi Arias I (1958)
Mad Scenes (1958)…
No matter how you parse it, the show's line-up is looking quite good. At press time, the show's sponsor, the UK's Chester Group, predicted 45 exhibit rooms, including a "…
Claudio Abbado, Lucerne Festival Orchestra
Deutsche Grammophon 479 3441 (CD, 48/24 download from HDTracks). 2014. Georg Obermayer, prod., ed.; Urs Dürr, Toine Mertens, engs. DDD. TT: 63:09
Performance *****
Sonics ****½
This performance of Bruckner's last, all-but-finished composition was recorded at the last concert conducted by Claudio Abbado. It is a fitting final statement by an interpreter of unparalleled sensitivity, intelligence, and taste.
The Ninth is no serene work, and Abbado's earlier recording, with the Vienna Philharmonic, is a…