Analog Sources: Garrard 301, Thorens TD 124 turntables; Audio-Creative GrooveMaster II, EMT 997, Swissonor TA10 tonearms; EMT TSD 15, Ortofon SPU #1S pickup heads; Denon DL-103 cartridge, with/without MusiKraft body.
Digital Sources: AudioQuest DragonFly, Halide Design DAC HD USB DACs; Apple iMac computer (late 2015) running OS 10.12.1 & Roon v.1.3, build 269; Sony SCD-777 SACD/CD player.
Preamplification: Auditorium 23 Hommage T1 & T2 step-up transformers; EMIA Phono transformer (copper); Shindo Laboratory Monbrison (2017) preamplifier.…

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I measured the AVM Ovation MP 8.2 with my Audio Precision SYS2722 system (see the January 2008 "As We See It"), using both the Audio Precision's optical and electrical digital outputs and USB data sourced from my MacBook Pro running on battery power with Pure Music 3.0 playing WAV and AIFF test-tone files. I measured the behavior with both the MP 8.2's Steep and Smooth reconstruction filters in "native" mode, the output level set to "fixed," and the USB port set to Type 2. Apple's USB Prober utility identified the AVM as "AVM Class 2 Audio" from "XMOS," and the…
> Born in Kwa-Guqa Township, Witbank South Africa, Masekela was, in the late 1950s, an original member of the…
TAD has long been a highly respected name in pro audio, and for decades sold exclusively to that market. But 16 years ago, when they introduced a speaker designed for the home market—the Reference One—its five-figure price raised eyebrows in a…
Description: Three-way, reflex-loaded, stand-mounted loudspeaker. Drive-units: 1" beryllium-dome tweeter, 3.5" midrange with magnesium cone (concentric); 6.5", slot-loaded MACC woofer. Crossover frequencies: 420Hz, 2.5kHz, slopes N/A. Frequency range: 36Hz–60kHz. Sensitivity: 85dB/2.83V/m (anechoic). Impedance: 4 ohms. Maximum amplification: 150W.
Dimensions: 16.2" (411mm) H by 9.9" (251mm) W by 15.8" (402mm) D. Weight: 44.1 lbs (20kg). Optional stand: 25.7" (652mm) H by 14.8" (376mm) W by 18.1" (460mm) D. Weight: 35.3 lbs (16kg).
Finishes: Gloss Piano…
Digital Source: Marantz UD7007 universal 3D BD player.
Preamplification: Balanced Audio Technology BAT VK-23SE preamplifier, Marantz AV8802A surround preamplifier-processor.
Power Amplifiers: Balanced Audio Technology BAT VK-255SE, Proceed AMP5 (five-channel).
Loudspeakers: Monitor Audio Silver 10, Revel B15 subwoofer.
Cables: Digital: Kimber Kable AGDL. Interconnect: Cardas Hexlink. Speaker: Monster Cable M1.5. AC: manufacturers' own.—Thomas J. Norton
I used DRA Labs' MLSSA system and a calibrated DPA 4006 microphone to measure the TAD Micro Evolution One's frequency response in the farfield, and an Earthworks QTC-40 for the nearfield responses. My estimate of the TAD's sensitivity was 86.2dB(B)/2.83V/m, slightly higher than the specified figure of 85dB. Fig.1 shows how the impedance and electrical phase vary with frequency. Though the impedance has a minimum value of 3.9 ohms between 120 and 155Hz, and there's a combination of 5 ohms and –43° phase angle at 33Hz, the ME1 is a relatively easy load for…
Cal Collins: By Myself
Cal Collins, guitar
Concord Jazz CJ-119 (LP). 1980. Frank Dorritie, prod.; Phil Edwards, eng. AAA. TT: 35:88
The late Cincinnati plectrist sounds either like a tight big band, a bebop combo, or a virtuoso pianist on this miraculous, out-of-print album of solo guitar. Melody and counterpoint, harmonic ingenuity, unflappable swing at any tempo: Collins puts it all across with a pure tone, lightly miked and amplified, that lets his Benedetto archtop sing and breathe. He offers blues, rubato ballads ("Stairway to the…