- 20 May 2009
- 5,856
• ESS 9010-2M DAC
• Asynchronous USB Audio 2.0
• 24bit 352.8Ks/S, DXD and DSD64/128
• 2.4VRMS Headphone DAC
• Machined from a solid block of aluminum
HERUS SPECIFICATIONS ___________________________
The total distortion (THD) on any HERUS will always be better than 85dB (ie less than 0.005% distortion) and the noise (SNR) will always be better than 100db, typically 108dB. More detailed specifications are:
Asynchronous USB Audio 2.0 | PCM bit width | 24 or 16 | Bits (If provided with 24bits HERUS uses them all, but it works with 16 bits also) |
Supported Data Rates | 44.1, 48, 88.2, 96, 176.4, 192 and 352.8 | Ks/S | |
Supported Formats | PCM, DXD and DSD64/128 | Uses DoP protocol 1.1 over USB for DSD | |
Operating Systems | MS Windows, MAC OS and Linux | Use the Resonessence Thesycon Driver for USB Audio 2.0 on Windows | |
Output Signal Level | At Maximum Volume level | 2.4 | VRMS |
Output Impedance | 0.2 | Ohms | |
SNR | at least | 100 | dB, Typically 108dB |
THD | at least | 85 | dB, Typically 90dB |
Power | Into 32 Ohms | 126 | mW |
THD + N | 0.0035 (89) | % (dB) Typical | |
Power | Into 60 Ohms | 95 | mW |
THD + N | 0.0032 (90) | % (dB) Typical | |
Power | Into 300 Ohms | 19 | mW |
THD + N | 0.0032 (90) | % (dB) Typical | |
Power | Into 600 Ohms | 9.5 | mW |
THD + N | 0.0032 (90) | % (dB) Typical |
Ένα comment για την Resonessence Labs:
Resonessence Labs top dog Mark Mallinson was formerly the operations manager at ESS. He left there to form Resonessence Labs, along with a group of engineers who were directly responsible for the creation of the Sabre DACs. Worthy of note is that Mark's brother Martin remains high up on the ESS roster. The Sabre chips are notoriously difficult to work with compared to alternatives from Wolfson, Cirrus, Texas Instruments, or Analog Devices. So if anyone should be able to extract maximum performance out of them, it's the team responsible for their very existence.
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