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COS H1

Το COS H1 είναι ένα audiophile DAC με ενισχυτή ακουστικών που ενσωματώνει τον digital-to-analogue αλγόριθμο της COS Engineering με δυνατότητα up-sample στα 176.4K ή στα 192K.

• COS ALGORITHM AND DSP

  COS’s proprietary algorithm with a linear-phase delay FIR can up-sample original data to 176.4K or 192K, and this massive computation is handled by a powerful 3648 MMAC/second DSP.

• BUFFER AND RE-CLOCKING

  H1 stores digital data in a one-second buffer before converting to analog signals, under the coordination of a crystal oscillator with a jitter precision less than 1ps and a dedicated re-clocking circuitry.

• HEADPHONE

  4 power amplifiers to accommodate 2 unbalanced headphones or 1 balanced headphone.

• POWER

  H1 harnesses a selected switching mode power supply with specially designed circuitry for lower noise, and galvanic isolation between digital and analog circuitries are added to prevent audio signals from being contaminated.

• VOLUME Control

  H1’s volume control is composed of a ladder of high precision resistors and an array of analog switches which are low in resistance, noise, and distortion.

SPECIFICATIONS

1. Volume
   DAC
   Steps 192 steps by 0.5dB/step
   Total Range 96dB
   Accuracy Within + 0.1dB
   Digital Inputs USB x1, Asynchronous 1.0/2.0;
   SPDIF x 1; TosLink x 1; AES x 1
   Sampling Rate
   Optical / RCA / XLR: up to 192K PCM
   24 bits & DSD64 (DoP)
   USB 1.0 – up to 96K PCM 24 bits
   USB 2.0 – up to 384K PCM 24 bits &
   DSD64/DSD128 (DoP)
   Digital-to-Analog Converter 24-bit DAC x 1
   (up to 192Ksps, 24-bit)
   Digital Filter COS Proprietary
   Linear Phase Delay
   Headphone
   Frequency Response + 0dB, – 0.5dB (20Hz ~ 20KHz)
   THD+N
   < 0.001% (- 100dB)
   (192Ksps, 24-bit, 20Hz ~ 20KHz,
   A-weighted, 16 ohm load, 2Vrms)
   Signal-to-Noise Ratio
   > 110dB
   (192Ksps, 24-bit, 20Hz ~ 20KHz,
   A-weighted, 16 ohm load, 2Vrms)
   Headphone Impedance 16 ohm and up
   Full Scale Output Unbalanced : 6 Vrms
   Balanced : 12 Vrms
2. SPECIFICATIONS
   Line Out
   Frequency Reponse + 0dB, – 0.5dB (20Hz ~ 20KHz)
   THD+N
   < 0.001% (- 100dB)
   (192Ksps, 24-bit, 20Hz ~ 20KHz,
   A-weighted, 2Vrms)
   Signal-to-Noise Ratio
   > 110dB
   (192Ksps, 24-bit, 20Hz ~ 20KHz,
   A-weighted, 2Vrms)
   Full Scale Output 2Vrms
   General
   Disply 128 x 64 pixels white OLED
   Weight 3 Kg
   Dimension
   260 mm (W) x 250 mm (D)
   60 mm (H) – boots are not included
   72mm (H) – boots are included
   Power
   100 ~ 240VAC
   Normal Operation < 20W
   Standby 0.5W (typical)

Awards & Reviews

6moons.com’s Blue Moon Award.

Audio Art’s Best Budget Award 2017. (in Chinese)

6moons.com: “A Superb DAC/Headfi/Minimalist Preamp 3-in-1.”

HiFi Knight: “Springy, energetic, well-textured, and above all, present at low end.”

U-Audio: “The sound H1 renders is clean, posh and pure–great for all kinds of music.” (content in Chinese)

Review by Mr. Liu, General Editor of Audio Art. (content in Chinese)

Audio Art: “Outstanding sound, extraordinary value.” (content in Chinese)

Stereo-head: “Excellent medium range with a good musicality and excellent vocal performance, extremely natural and enjoyable. The high range is extended, open and bright without excess or sibilance.” (content in Italian)

HeadFonia: “Its detailed and textured high-range really makes you feel there.”

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COS H1