Oppo HA-1 Headphone Amplifier, DAC & Pre-Amplifier Black New Open Box

For Sale is an Oppo HA-1 Headphone Amplifier, DAC & Pre-Amplifier New Open Box. Never been used before. Includes Remote, Power Cord and Original Box. Missing Instruction Manual

Discrete Class A Balanced Headphone Amplifier, Asynchronous USB DAC Up to 384 kHz and DSD256, Stereo Pre-Amplifier with Home Theater Bypass

-Dimensions: 10" x 3.6" x 13"
-Mass: 13.0 lbs
-Power Supply AC 110-120 V~ / 220-240 V~, 50/60 Hz auto-sensing
-Power Consumption: 70 W (operation), 0.5 W (standby)
-Trigger Input: 3.5 V – 15 V, 10mA minimum
-Trigger Output: 12 V, 100 mA maximum
-Operating Temperature: 41 °F - 95 °F, 5 °C - 35 °C
-Operating Humidity: 15% - 75% No condensation
-Recommended Headphone Impedance: 32 ohm – 600 ohm
-Balanced Headphone Jack Output (XLR-4) Pin order 1: L+, 2: L-, 3: R+, 4: R-, Shell: GND
-6.35 mm Headphone Jack Output Pin order Tip: L, Ring: R, Sleeve: GND
-XLR Balanced Audio Input
-Input Impedance: 15k ohm
-Maximum Input Level: 18 Vrms, +27.3 dBu (0 dBu = 0.775 Vrms)
-RCA Stereo Audio Input
-Input Impedance: 10k ohm
-Maximum Input Level: 9 Vrms, +21.3 dBu (0 dBu = 0.775 Vrms)
-Coaxial, Optical, AES/EBU Digital Inputs
-Input Format: Stereo PCM
-Sampling Frequencies: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz,
176.4 kHz, 192 kHz
-Word Length:16-bit, 24-bit
-USB DAC Audio Input (USB B Type)
-Input Format: Stereo PCM, Stereo DSD (DoP v1.1 or native)
-PCM Sampling Frequencies: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz,
176.4 kHz, 192 kHz, 352.8 kHz, 384 kHz
-PCM Word Length 16-bit, 24-bit, 32-bit
-DSD Sampling Frequencies 2.8224 MHz (DSD64), 5.6448 MHz (DSD128),
11.2896 MHz (DSD256, native mode only)
-Profile: USB 2.0, USB Audio 2.0
-Mobile USB Audio Input (USB A Type)
-Input Format Stereo PCM
-PCM Sampling Frequencies 44.1 kHz, 48 kHz
-Profile USB 2.0, USB Audio 2.0
-VBUS Power Output +5 V, 2.1 A
-Bluetooth Audio Input
-Standard Bluetooth 2.1+EDR
-Profile iAP, SPP, AVRCP, A2DP
-Audio Transmission Format SBC, aptX
-DAC Performance Specifications

-Specification XLR Output.       RCA Output
-Output Level 4.6 ± 0.3 Vrms       2.3 ± 0.3 Vrms
-Frequency Response
(Tested with -10 dBFS / 384 kHz) 10 Hz – 170 kHz (+0/-3 dB)
20 Hz – 20 kHz (+0/-0.07 dB) 10 Hz – 170 kHz (+0/-3 dB)
20 Hz – 20 kHz (+0/-0.07 dB)
-THD+N at 1 kHz (A Weight, 20 Hz – 20 kHz) < 0.00056% (< -105 dB) < 0.00056% (< -105 dB)
-Channel Separation > 105 dB > 105 dB
-Signal-to-Noise Ratio
(A Weight, 20 Hz – 20 kHz) > 115 dB > 113 dB
-Dynamic Range
(1 kHz -60 dBFS, A Weight, 20 Hz – 20 kHz) > 115 dB > 113 dB
(Test condition: USB DAC input in Home Theater Bypass mode and the volume knob at Max position.)

Pre-amplifier Performance Specifications
-Specification XLR Input – XLR Output RCA Input – RCA Output
-Rated Output Level 4.6 Vrms 2.3 Vrms
-Frequency Response 10 Hz – 200 kHz (+0/-2 dB)
-20 Hz – 20 kHz (+0/-0.04 dB) 10 Hz – 200 kHz (+0/-2 dB)
-20 Hz – 20 kHz (+0/-0.04 dB)
-THD+N at 1 kHz (A Weight, 20 Hz – 20 kHz) < 0.00056% (< -105 dB) < 0.00071% (< -103 dB)
-Channel Separation > 120 dB > 110 dB
-Signal-to-Noise Ratio
(A Weight, 20 Hz – 20 kHz) > 110 dB > 105 dB
-Dynamic Range
(1 kHz -60 dB, A Weight, 20 Hz – 20 kHz) > 120 dB > 115 dB
-Maximum Gain (100 mVrms input) 6 dB 6 dB