NAD Preamps

C510

https://nadelectronics.com/product/c-510-direct-digital-preamp-dac/

Rated Distortion (THD+N with AES 17 filter)0.0005% (0dBFS)0.002% (-60dBFS)IMD Distortion0.0001%
Signal/Noise Ratio123dB (ref. 0dBFS 2V out)
Channel Separation115dB (ref. 0dBFS Volume -1dB)
Sample Rate32kHz to 192kHz (USB and digital S/PDIF)
Frequency Response±0.5dB (ref. 20Hz – 96kHz @ 192kHz sample rate)
Output Level2V (ref. input 0dBFS)
Input
AES/EBU XLRSPDIF Coaxial x 1Optical x 1HDMI x 2 (2-channel PCM)USB Class 2 Audio: asynchronous 24/192 supportIR InTrigger In12V ±20%
Output
HDMI Video Out (3D video pass through)
Analogue Unbalanced47 ohmsBalanced110 ohmsTrigger Out12V ±20%

C165BEE

https://nadelectronics.com/product/c-165bee-stereo-preamplifier/

Features:

6 Line Level Inputs
Phono Input with selectable Moving Coil and Moving Magnet sensitivity settings
3 position Resistance and Capacitance settings for Phono Input
2 Line Level Outputs, one variable from 0dB to -12dB
Subwoofer Output
Independent Headphone Amplifier
Pure Class A Gain Modules
Sealed Reed Relays for Input Switching
Heavy Gauge Steel Chassis
Bass and Treble Controls with Defeat Switch (bypass]
Gold Plated Sockets
12V Trigger Output
IR In and Out
Detachable Power Cord
SR 8 NAD 4 Device System remote Control
<1 watt Standby Consumption