The headset market continues to grow, especially in recent years, more and more manufacturers have introduced static headphones, breaking the situation that electrostatic headsets are oligopolist by a few manufacturers. Sonoma, a recording equipment manufacturer known for its DSD editing workstations, has also joined the electrostatic headset market, launching the Model 1 electrostatic headset, which is surprisingly unexpected.
The original factory said in its official website that the Model 1 electrostatic headset system is a headset system designed for Hi-Res audio files. In the headphone body of Model 1, the unit adopts High-Precision Electrostatic Laminate Transducer (HPEL) developed by Warwick Technology of the United Kingdom. The diaphragm thickness is only 15 μm, which is highly efficient and easy to drive. It is attached to the frame of the honeycomb structure, and the large hole design of the frame can reduce the influence on sound waves. In addition, Warwick Technology claims to have mastered the technology of mass production of HPEL units, reducing production costs, and the entire process of manufacturing in the UK, for headset players, is undoubtedly a big profit.
As for the DAC and ear extension with Model 1 electrostatic headphones, the DAC chip produced by ESS SABRE, and the top ADC chip of AKM, together with the 64-bit DSP circuit, the original factory can support various Hi-Res audio file formats. . As for the expansion of the circuit, the "Energizer" amplifying circuit, also designed by Warwick Technology, provides the large voltage swing for the low frequency band and the high frequency band for the impedance characteristics of the HPEL, in addition to providing the maximum bias voltage required for the electrostatic unit. High current, driving the HPEL unit for low distortion.
Sonoma's official website has not published much information about Model 1, but it has been discussed in many foreign headphones websites. It is worthy of attention.
Configuration:Open-back, circumaural type
Transducer: HPEL, single-ended electrostatic
Effective Diaphragm Area: 3570 mm2
Frequency Response: 10 Hz ~ 60 kHz
Output Level: Compliant with EN 60065/A12:2011 (EN50332) when driven by M1 Energizer/DAC (for all inputs)
Ear and Headband Cushions: Cabretta top-grain, sheepskin leather
Input:Polarized, 4-pin, self-latching connectors for left and right channels
Drive Cable: Ultra-low capacitance, silver-plated OFHC copper, with foamed PE insulation and Kevlar reinforcement; 2 meter length
Weight: 303 grams (10.7 oz), without cable
DAC & ENERGIZER
USB Input: USB 2.0 type B; accepts digital audio formats up to 32-bit/384 kHz PCM and DSD via DoP (DSD64/DSD128)
Digital Coaxial Input: S/PDIF; accepts digital audio formats up to 24-bit/192 kHz PCM
Analog Input (High Level): Dual RCA; 2.1 Vrms
Analog Input (Low Level): 3.5 mm; 850 mVrms
DAC: Dual mono, 32-bit/384 kHz DACs with balanced outputs
ADC: 32-bit/384 kHz multi-channel ADC with balanced input buffers
Digital Signal Processing (DSP): 64-bit (double-precision) fixed-point processing at native sample rates
Amplifier/Energizer: Discrete FET, single-ended, high-bias Class-A output
Distortion + Noise: < 0.05%
Bandwidth:> 65 kHz
Enclosure:CNC-machined 6063 aluminum
Power Supply: External: 24 VDC, 60 VA, fixed frequency, class B-compliant SMPS;
Internal: fully isolated, ultra-low noise linear regulation
AC Mains: World voltage compatible (90-264 V, 50-60 Hz); IEC-60320 C14, earth-grounded power cable; 1.5 meter length
Dimensions (H x W x D): 57 mm × 190 mm × 290 mm
Weight: 2.45 kg (5.40 lbs)
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