Description
A DAC and headphone amplifier built around a premium Analog Devices AD1853 24-bit/192kHz converter, with all inputs re-clocked and up-sampled to 422kHz/24-bit for jitter-free playback. Drives any headphone from 32 to 600 ohms while doubling as a high-quality preamp with both RCA and XLR outputs.
Features
- Separate analog volume controls for line outputs and headphone jacks, with a lock-out switch
- 1/4" and 1/8" 24k gold-plated headphone jacks, driving headphones from 32–600 ohms
- USB input for driver-less playback from PC or Mac, up to 96kHz/24-bit
- Asynchronous sample rate conversion on all inputs, including USB
- Optical and coaxial digital inputs for standard digital sources
- Digital connection to Lightning-equipped Apple devices (USB adapter required)
- Oversized internal toroidal transformer — not a wall-wart power supply
- 12V input/output triggers; always powers back up to the same input after an outage
Specifications
DAC
Analog Devices AD1853, 24-bit/192kHz
Sample Rate Converter
Analog Devices AD1895
USB Streaming Controller
Texas Instruments TAS1020B
Headphone Amplifier
Texas Instruments TPA6120
Supported Word Length
16–24 bit
Sampling Frequencies
Optical/Coax: up to 192kHz · USB: up to 96kHz
Upsampling
422kHz/24-bit on all inputs
Frequency Response
20Hz–20kHz (±0.2dB)
Channel Separation
>95dB (20Hz–20kHz)
Signal-to-Noise Ratio
110dB, A-weighted
THD+N
<0.015%
Max Output Level
Unbalanced: 2.4V variable / 2.2V fixed · Balanced: 4.8V variable / 4.4V fixed
Output Impedance
Line out: 160Ω · Headphone out: 10Ω
Power Requirement
110–130VAC 60Hz or 220–240VAC 50Hz; 10W operating, <1W standby
Dimensions
8.5" W × 10" D × 1.75"–2" H
Weight
5 lbs net (2.3 kg)