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Dirac Live room correction system: Full version: €650, Stereo version: €389
Of course, the sound quality is dependent on the hardware in the system, says KR, but the acoustic transformation capabilities of DLRC are well beyond what is built into most processors. (Vol.37 No.5 WWW)

Paradigm PBK: $99
An adaption of the formidable Anthem Room Correction system used in Anthem's Statement D2 processor, the PBK includes USB cables and a microphone, and will work with up to four Paradigm subwoofers. While easier to use and considerably less expensive…

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AI Technology ELGR-8501: $160.75/1 oz
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, and…

AcroLink 7N-DA2090 Speciale: $2375/1.5m pair
The less-than-snappily named 7N-DA2090 Speciale is technically laudable; commendably, AcroLink publishes the specs for this product's resistance (18milliohm/meter) and electrostatic capacitance (56pF/meter). It's made of 99.99999% pure multistrand copper, arranged in what AcroLink calls a "balanced twin core structure." According to MF, substituting the AcroLink interconnect for his TARA Zero Evolution "produced sharper but not unnaturally defined transients, shorter sustain and decay, and an overall well-detailed and…

Through the SLI-80HS, the 1989 Japanese reissue of the Beatles' Magical Mystery Tour (LP, EMI/Apple Records TOCP-8514) sounded small. The superior 1971 German…

Description: Tube integrated amplifier with fixed-bias, push-pull, class-AB output section. Tube complement: two 6922 dual-triodes, two 6SN7 dual-triodes, four KT88 output pentodes. Power output: 40Wpc (16.02dBW) triode, 80Wpc (19.03dBW) Ultralinear, both into 8 ohms. Input sensitivity: 0.45V. Input impedance: 100k ohms. Noise and hum: 82dB below rated output. Frequency response: 19Hz–23kHz, ±0.5dB at full power output. Maximum gain: 34dB. Power consumption: 166W in operation, 83W standby. Inputs: 3 pair single-ended (RCA). Outputs: One pair 5-way loudspeaker…

Analog Sources: Kuzma Stabi R & Kuzma 4Point 11" tonearm; Hana ML moving-coil cartridge.
Preamplification: Tavish Audio Design Adagio phono preamp.
Integrated Amplifiers: Schiit Ragnarok.
Loudspeakers: DeVore Fidelity Orangutan O/93, Klipsch Forte III, Spendor A7.
Headphones: Master & Dynamic MH40.
Cables: Interconnect: Shindo Laboratory, Triode Wire Labs Spirit II. Speaker: Auditorium 23, Triode Wire Labs American. AC: manufacturers' own.
Accessories: IsoTek EVO3 Aquarius line conditioner, Salamander five-tier rack; IKEA…

I measured the Cary SLI-80HS using my Audio Precision SYS2722 system (see the January 2008 As We See It"). Both the small-signal and output tubes—all Electro-Harmonix—are numbered or marked L or R, and I installed them as instructed in the manual. Cary recommends checking the output stage bias current when the tubes are first installed and setting it to between 75mA and 85mA with the trim pots on the top panel. When the amplifier was first powered up, the left channel bias measured 79mA, the right 82mA. I checked the bias currents at intervals throughout the…