CMA Twelve Specification

DAC+Headphone Amplifier Section

 
– Outputs:
4.4 mm balanced headphone jack
4PIN balanced headphone jack
6.35mm headphone jack

– Max Output Power(Po):
247mW @ 300Ω; 900mW @ 32Ω(6.35mm headphone jack)
825mW @ 300Ω; 2W @ 32Ω (balanced headphone jack)

– THD + N:
0.00070% @Po=100mW,
300Ω 0.00167% @ Po=50mW, 2Ω

– Frequency Response:
DC-20kHz(+0, -0.4dB)@0dBFS, 24Bit, 192kHz
DC-80kHz(+0, -3dB)@0dBFS, 24Bit, 192kHz

– SNR:
112dB, non-weighting
 

DAC+Pre-Amp Output Section

 
– USB Type B Input:
Support 44.1kHz-384kHz/16Bit-32Bit PCM and DSD Native DSD64, DSD128,DSD256, as well as DSD64, DSD128, DSD256 of DoP format
(Note: support Win XP, Vista, Win7, Win8, Win10 and Mac OS)

– Digital Input & Output:
SPDIF input and output, Optical input, AES/EBU input
Support 44.1kHz-192kHz/16Bit-24Bit PCM

– Pre-Amp & DAC Section:
Balanced XLR x1 pair, unbalanced RCA x1 pair
STANDARD 14dBu: XLR: 5.084V RCA: 2.549V
STUDIO 20dBu: XLR: 8.887V RCA: 4.475V
THD+N@STUDIO 20dBu: XLR: minimum at 0.00085% RCA: minimum at 0.00115%
SNR: XLR:>112dB RCA:> 109dB (non-weighting)
(Note: FIX/ADJ: Fixed Output Mode or Adjustable Output Mode of the pre-amp.)