Audiophilia is not congenital. Most audiophiles can trace their obsessions back to a particular event, a stirring experience hearing music they love on a high-quality hi-fi system. A vibrant community helps all of us while providing rich…
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Accustomed to US shows that close down at 4pm on Sunday, I paced myself to visit the well-over 30 rooms not yet seen in the Sobieski hotel, and then head diagonally across…
If you can't laugh at that, you've lost your sense of humor—even acknowledging that, oddly, convenience is the raison d'être of some recent phono preamplifiers—including Dan D'Agostino Audio's Momentum and the CH Precision P1, both of which offer multiple, switchable, configurable inputs saved in memory. Today's well-heeled vinyl…
Despite the cackling and…
First, there's the wonderful playing…
Expectations were high for the new A35.8 power amplifier. Its stablemate, the A35.2…
When played in stereo, it seemed paler in every way, and I missed the subtle weight of the lower strings. I tried turning up the volume to compensate for having only two speakers…
Description: Eight-channel power amplifier based on Ncore NC500 class-D technology. Inputs (per channel): 1 RCA (unbalanced), 1 XLR (balanced). Input impedance: 15k ohms (RCA), 36k ohms (XLR). Input sensitivity: 1.7V (RCA, 150W 8 ohms); 3.4V (XLR, 150W 8 ohms). Gain: 26dB (RCA), 20dB (XLR), +6dB in bridge mode. Output impedance: <0.02 ohms. Power output: 1kHz (per channel): 150W into 8 ohms (21.8dBW), 300W into 4 ohms (21.8dBW), 400W into 2 ohms (20.0dBW). Power output: 1kHz (per bridged pair): 740W into 8 ohms (28.7dBW), 750W into 4 ohms (25.8dBW), 450W into…
Digital sources: Oppo Digital UDP-105 universal disc player, Custom Intel/Win11 music server running JRiver Media Center v29, Roon 1.8, and DiracLive. exaSound s88 streaming DAC, Okto dac8 PRO, and Topping DM7 D/A processors. QNAP TVS-873 NAS.
Preamplifiers: Coleman Audio 7.1SW for balanced source switching. 3 × Topping Pre90 preamps for buffer/line-drivers.
Power Amplifiers: Benchmark AHB2, NAD C 298, NAD M28.
Loudspeakers: Revel Ultima2 Studio with IsoAcoustics Gaia I isolation feet. Revel Performa3 f206 for surrounds. Two SVS SB-3000 &…
I tested the Primare A35.8 with my Audio Precision SYS2722 system. As the A35.8 has class-D output stages, all measurements other than frequency response were taken with Audio Precision's auxiliary AUX-0025 passive low-pass filter, which mitigates noise above 80kHz and eliminates noise above 200kHz. (The relatively high levels of ultrasonic noise emitted by class-D amplifiers would otherwise drive the analyzer's input into slew-rate limiting.) Without the filter, 325mV of ultrasonic noise was present at each pair of loudspeaker terminals, with a center frequency…