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Description: Smartphone with WiFi, 64GB internal memory (or 128GB in V30+; microSD slot supports cards up to 2TB), 32-bit Hi-Fi Quad DAC, three digital filters, four sound presets, HD Audio Recorder. Compatible file and bit/depth sample rates: all major file formats, PCM and MQA, up to 24-bit/192kHz, DSD up to 256. OS: Android 7.1.2 (Nougat). Processor: Qualcomm Snapdragon 835 up to 2.45GHz x4 + 1.9GHz x4 Octa-Core MSM8998. Firmware: Android v.4.3, AR-M2 Music Player app v.1.2.0. Output: headphone (3.5mm jack). Maximum output power: 2V. THD at 2V: 0.0002%, –…
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, OH 44224. Tel: (330) 686-2600. Web: www.audio-technica.com.
Acoustical Systems, Alpenstrasse 26, 86935 Rott, Germany. Web: www.arche-headshell.de. US distributor: Rutherford Audio, 12649 E. Caley Avenue #116, Centennial, CO 80111. Tel: (303) 872-6285. Web: www.rutherfordaudio.com.
Digital Sources: dCS Rossini DAC & Scarlatti clock, Aurender A10 network music player/server, Linksys router with TP-Link gigabit Ethernet media converters & multimode duplex fiber-optic cable, iPad Pro, Apple iPhone 7.
Preamplifier: Lamm Industries L2.1.
Power Amplifiers: Pass Laboratories XA200.8 monoblocks.
Loudspeakers: Wilson Audio Specialties Alexia 2.
Headphones: Audeze LCD-X, Thinksound On2.
Cables: Digital: AudioQuest Diamond, Nordost Odin 1 & Odin 2, Wireworld Platinum Starlight Cat8 (Ethernet). Interconnect,…
In most recordings of solo voices the singer is centrally placed, but the voice can be poorly defined and/or sound bloated. One might reasonably point the finger at the…
Description: Three-way, vented box loudspeaker. Drive-units: 1" (25mm) decoupled carbon-dome tweeter, 6" (150mm) woven Continuum- cone, FST midrange unit, three 6.5" (165mm) Aerofoil Profile woofers. Crossover frequencies: 350Hz (third-order HP/LP), 4kHz (second-order LP, first-order HP). Frequency range: 28Hz–33kHz, –6dB. Frequency response: 45Hz–28kHz, ±3dB on reference axis. Sensitivity: 90dB/2.83V/m. Harmonic distortion (second and third harmonics, 90dB, 1m): <1%, 86Hz–28kHz; <0.5%, 110Hz–20kHz. Impedance: 8 ohms nominal, 3.1 ohms minimum. Recommended…
Digital Sources: Oppo Digital BDP-105 universal BD player; Baetis Prodigy X PC-based music server running JRiver Media Center 23; exaSound e38, Mytek HiFi Brooklyn DACs; QNAP TVS-873 NAS.
Preamplifiers: Audio Research MP1, Parasound Halo P 7, SPL SMC 7.1.
Power Amplifiers: Classé Sigma Mono (monoblocks), Parasound Halo A 31 (three-channel).
Loudspeakers: .
Cables: Digital: AudioQuest Carbon (USB). Interconnect: AudioQuest Earth/DBS balanced, Kubala-Sosna Fascination balanced (subwoofer) & Anticipation (RCA), VoVox Sonorus Muco (XLR to…
I used DRA Labs' MLSSA system and a calibrated DPA 4006 microphone to measure 7the Bowers & Wilkins 702 S2's frequency response in the farfield, and an Earthworks QTC-40 for the nearfield responses. My estimate of the B&W's sensitivity was a high 90.2dB(B)/2.83V/m, confirming the specified 90dB. The 702 S2's nominal impedance is specified as 8 ohms, with a minimum value of 3.1 ohms. My measurement of the impedance magnitude (fig.1, solid trace) reveals that while the impedance does lie at and above 8 ohms in the low treble and in two regions in the bass,…