Technical data on the Burson Audio Composer 3X Performance USB DAC/Preamplifier
 
Measurement data
Input impedance: 38 KOhms
Frequency response: ± 1 dB 0 – 58Khz
THD: <0.0017%
Output impedance (Pre Out / DAC Out): 10 Ohm / 25 Ohm
Inputs: USB, Optical Toslink, BlueTooth 5.0, microphone
Outputs:1 x XLR Pre Out / DAC Out, 1 X RCA Pre Out / DAC Out
 
DAC Spec
SABRE32/ESS9038Q2M DAC chip
Channel Separation: 142 dB @ 1KHz, 135 dB @ 20KHz
THD+N: 0.0005% @ 1KHz, 0dBFS
COAX & Toslink / SPDIF : up to 24bit 192K
 
Bluetooth Input:
Bluetooth 5.0 aptX HD (Qualcomm CSR8675)
 
Asynchronous Isochronous USB Spec
PCM Support: PCM ? 768kHz @ 16, 24 or 32bits
Native DSD: Native DSD 64 / 128 / 256 / 512
DSD over PCM: DoP64 / DoP128 / DoP256/ Dop512

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