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Midmorning of day five of the break-in period, I took my first critical listen; I chose a jazz selection from pianist Cyrus Chestnut's debut album, Revelation (16/44.1 FLAC, Atlantic Jazz 82518-2). This is a trio date, and on the closing track, "Cornbread Pudding," you're witness to incredible interplay between Chestnut, bassist Christopher Thomas, and drummer Clarence Penn. The session was engineered by Jim Anderson and mastered by Joe Gastwirt, and the realism of the instruments and the solid presence of the players in the soundfield has made this disc one of my reference evaluation tools…
Sidebar 1: Specifications
Description: Solid-state stereo power amplifier, operating in class-D. Analog inputs: 1 pair single-ended (RCA), 1 pair balanced (XLR). Loudspeaker outputs: stereo pair of 5-way binding posts. Power output: 250Wpc into 8 ohms (24dBW), 500Wpc into 4 ohms (24dBW), stable into 2 ohms. Frequency response: 0–20kHz, ±3dB all loads. Voltage gain: 27dB, switch selectable to 33dB. Damping factor: >500. THD+N: 0.002% @ 1W, 1kHz into 4 ohms. IM distortion: 0.0003%. Dynamic range: 126dB. Peak output current: 27 amperes.
Dimensions: 17.75" (451mm) W × 3.25" (83mm) H…
Sidebar 2: Associated Equipment
Analog sources: Pro-Ject Classic SB turntable with Hana SL moving-coil cartridge; Rega P2 turntable with Ortofon 2M Mono cartridge.
Digital sources: Yamaha BD-A1060 universal disc player; Audiokernel Euphony Summus, Intel NUC-based music server/player/streamer running JRiver Media Center 23 and Roon; Sonore ultraRendu streamer with LPS.
Preamplifiers: PS Audio Gain Cell DAC/Preamp; Musical Surroundings Phonomena II+ phono preamplifier with Musical Surroundings LPS; Sutherland KC Vibe phono preamp.
Power amplifiers: Emotiva XPA-1L monoblocks;…
Sidebar 3: Measurements
I measured the Bel Canto e1X using my Audio Precision SYS2722 system (see the January 2008 "As We See It"). As the Bel Canto is a class-D design, it wasn't necessary to precondition the amplifier by using it to drive a 1kHz tone at one-third power into 8 ohms. Nevertheless, before doing any testing I ran it for an hour at a moderate power level, to ensure that it was fully warmed up. Because class-D amplifiers emit relatively high levels of ultrasonic noise that would drive my analyzer's input into slew-rate limiting, all measurements were taken with Audio…
The Home Entertainment Show—aka T.H.E. Show—which was originally scheduled for June 12–14 in the Long Beach Hilton, has canceled for 2020. According to a May 13 announcement, T.H.E. Show team of President Maurice Jung and Director of Marketing Emiko Carlin had hoped to postpone the event until December 2020. Not happening.
The cancellation comes after six weeks of negotiations with the hotel failed to produce "clarification on what [the hotel's] health and safety policies would be," the announcement said. (It also follows the announcement of California Governor Gavin Newsom's four-stage…
At the 2019 AXPONA, I took part in one of my first official meetings, as editor of Stereophile, with members of the manufacturing community: the German company T+A. They were presenting in the room of Texas dealer Lone Star Audio, which was owned by the late Jim Hench. They had a corner hallway to themselves: two rooms and, at the time when I arrived, a hallway table brimming with coffee and pastries. Fortuitous timing.
In one of those rooms I saw some of the company's less-expensive gear: I stopped in briefly—yet I spent so much time in their high-end room that I lost track of my coffee…
Absent a Windows 10 source, the best I could achieve with DSD data was DSD128 via DoP. The MP 3100 HV is Roon Tested, which means that Roon keeps a device on-hand and tests it to ensure it is utilized as well as possible. In my tests, Roon down-converted higher-rate DSD data to DSD128 and then delivered it to the T+A over DoP. (Say that five times fast.) When DSD data came in via the Ethernet jack, Roon converted it to PCM (footnote 2).
For those seeking the best possible high-rez performance, especially via an Ethernet connection, T+A offers a high-performance Network Audio Adapter (NAA…
That list shows what the MP 3100 HV can do: The built-in transport plays CDs and SACDs. There's a Bluetooth receiver, which works well. You can directly connect USB storage media, from either the front panel connection mentioned above or the one on the back. All the usual digital inputs are included. There's over-the-air radio. And there are no fewer than seven options for data delivered over the network to the MP 3100 HV's streaming client.
USB is by far the most versatile connection; it's capable of PCM up to 32/384 (I corroborated up to 24/354.2, the highest-resolution PCM files I…
Sidebar 1: Specifications
Description: Multisource streaming disc player/DAC with app support, radio-frequency remote control. Total harmonic distortion: <0.001%. S/N ratio: >116dB. Channel separation: >110dB. Frequency and actual dynamic range varies with data format. Disc player: Plays SACD Stereo, CD, CD-R, CD-RW, CD Text. Streaming client (Ethernet, Wi-Fi): Supports MP3, WMA, AAC, OGG Vorbis, FLAC, WAV, AIFF, ALAC/UPnP AV; Data rates: PCM up to 32/192, 16/24 bit; MP3 up to 320kbps, constant and variable; Music services: Tidal, Qobuz, Deezer, Roon Ready (subscription required…
Sidebar 2: Associated Equipment
Analog sources: Thorens TD 124 turntable (reconditioned by Schopper AG) with Thomas Schick 12" tonearm; Ortofon Xpression cartridge; SME 30/12 turntable with V-12 tonearm and Ortofon Windfeld TI cartridge (in for review).
Digital sources: Intel NUC computer with SSD drive running Roon Optimized Core Kit; Synology DS918+ Diskstation 4-bay Network Attached Storage device with 16TB; TP-Link 8-Port Gigabit network switch (unmanaged); PS Audio DirectStream DAC; Mytek Brooklyn DAC+.
Preamplification: Auditorium 23 Standard step-up transformer, Sutherland…