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Toward the end of my time auditioning Audeze's superb-sounding LCD-4 headphones, which I reviewed in the July 2016 issue, I briefly tried a sample of Audeze's new The King headphone amplifier (serial no. K3301003, footnote 1). Herb Reichert had expressed interest in reviewing the King, and before I drove it over to his Bed-Stuy bothy, I examined its test-bench performance with my Audio Precision SYS2722 system (see the January 2008 "As We See It"), using unbalanced signals. (Though a pair of XLR jacks is available for input…
Editor: Thanks to Stereophile for bringing the joy of headphone listening to its audience. We deeply appreciate Herb Reichert's review of the Audeze LCD-4 and The King headphone amplifier in the December issue, along with John Atkinson's Follow-Up measurements in this issue. Herb: "I can enthusiastically declare that Audeze's The King is one of the two or three best all-around headphone amps I have heard. . . . and by all audiophile measures, the LCD-4s must be rated Class A, superb, the state of the art."
Regarding the measurements, The King headphone…
Steve Cohen: My dad was into music, and getting a good hi-fi system to listen to was a project that we got to witness as kids. He went through a brief phase of buying equipment until he assembled his hi-fi system. He'd drive us to Lafayette Radio, an electronics store where the…
On December 8, 12 days before an embargo on the news was lifted, I visited Wilson Audio in Utah. The occasion was the launch of the WAMM Master Chronosonic loudspeaker. Given its limited-edition production run (70 pairs), oversized dimensions (approximately 86" H with spikes x 26" W x 36.5" D), and high price ($685,000/pair), Wilson Audio's ultimate speaker is not slated for dealer and audio show demos. Instead, the only way prospective customers, dealers, and select press can experience Dave Wilson's magnum opus—the culmination of well over…
Ever since I returned from visiting Bang & Olufsen's factory in…
Setup, Part 2
The next morning, having spent the previous evening listening to…
Description: Remote-controlled, powered, three-way, 18-driver, floorstanding, sealed-box loudspeaker with Beam Width Control, Beam Direction Control, and Active Room Compensation. Drive-units (all ScanSpeak): seven 1.18" (30mm) Illuminator tweeters, seven 3.39" (86mm) Illuminator midrange units, three 8.3" (212mm) Discovery woofers, one 10.25" (260mm) Revelator woofer (front). Crossover frequencies: vary with driver and Beam Width setting. Power amplifiers: 14 B&O ICEpower AM300-X, tweeter & midrange drivers; four Heliox AM100-1, woofers. DSP: 2 Analog…
Digital Sources: Oppo Digital BDP-105 universal BD player, Baetis XR3 PC-based music server, exaSound e28 II multichannel D/A processor, QNAP TS569L NAS.
Preamplifiers: Audio Research MP1, Parasound Halo P 7.
Cables: Interconnect (analog): AudioQuest Earth/DBS balanced. Interconnect (digital): Corning Optical USB 3, Shunyata Research E-Tron Anaconda BNC/RCA S/PDIF, Peachtree X1 USB-to-S/PDIF converter, UpTone Audio USB ReGen. AC: AudioQuest NRG-10, JPS Aluminata, Kubala-Sosna Emotion.
Accessories: Environmental Potentials EP-2450 power…
The BeoLab 90 is so massive that, rather than having it shipped to my home, I traveled to Kal Rubinson's place to take some measurements. I used SMUGSoftware's Fuzzmeasure 3 app running on my MacBook Pro, along with an Earthworks QTC-40 microphone and a FireWire-connected Metric Halo ULN-2, which combines a low-noise microphone preamplifier with A/D and D/A converters. (These were set to a sample rate of 96kHz for the measurements and I fed Fuzzmeasure's analog signal to the Master loudspeaker where it was converted at 192kHz.)
First of all, as KR…