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Lightly Used Oppo HA-1 (Headphone Amplifier, DAC & Pre-Amplifier)

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Lightly Used Oppo HA-1 (Headphone Amplifier, DAC & Pre-Amplifier)

Post by subval999 on Thu Mar 01, 2018 11:24 pm

Stereo Pre-Amplifier with Home Theater Bypass

Discrete Class A Balanced Headphone Amplifier, Asynchronous USB DAC Up to 384 kHz and DSD256, Stereo Pre-Amplifier with Home Theater Bypass
The HA-1 doubles as a high fidelity stereo pre-amplifier with both RCA and XLR output ports. A special "Home Theater Bypass" mode can be assigned to any input source, making it very easy to integrate the HA-1 as a stereo pre-amplifier into a home theater sound system.


SPECIFICATIONS






































General
Dimensions (W x H x D)10.0 x 3.6 x 13.1 inches, 254 x 91 x 333 mm
Mass13.0 lbs, 5.9 kg
Power SupplyAC 110-120 V~ / 220-240 V~, 50/60 Hz auto-sensing
Power Consumption70 W (operation), 0.5 W (standby)
Trigger Input3.5 V – 15 V, 10mA minimum
Trigger Output12 V, 100 mA maximum
Operating Temperature41 °F - 95 °F, 5 °C - 35 °C
Operating Humidity15% - 75% No condensation
Recommended Headphone Impedance32 ohm – 600 ohm
Balanced Headphone Jack Output (XLR-4) Pin order1: L+, 2: L-, 3: R+, 4: R-, Shell: GND
6.35 mm Headphone Jack Output Pin orderTip: L, Ring: R, Sleeve: GND
XLR Balanced Audio Input
Input Impedance15k ohm
Maximum Input Level18 Vrms, +27.3 dBu (0 dBu = 0.775 Vrms)
RCA Stereo Audio Input
Input Impedance10k ohm
Maximum Input Level9 Vrms, +21.3 dBu (0 dBu = 0.775 Vrms)
Coaxial, Optical, AES/EBU Digital Inputs
Input FormatStereo PCM
Sampling Frequencies44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz,
176.4 kHz, 192 kHz
Word Length16-bit, 24-bit
USB DAC Audio Input (USB B Type)
Input FormatStereo PCM, Stereo DSD (DoP v1.1 or native)
PCM Sampling Frequencies44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz,
176.4 kHz, 192 kHz, 352.8 kHz, 384 kHz
PCM Word Length16-bit, 24-bit, 32-bit
DSD Sampling Frequencies2.8224 MHz (DSD64), 5.6448 MHz (DSD128),
11.2896 MHz (DSD256, native mode only)
ProfileUSB 2.0, USB Audio 2.0
Mobile USB Audio Input (USB A Type)
Input FormatStereo PCM
PCM Sampling Frequencies44.1 kHz, 48 kHz
ProfileUSB 2.0, USB Audio 2.0
VBUS Power Output+5 V, 2.1 A
Bluetooth Audio Input
StandardBluetooth 2.1+EDR
ProfileiAP, SPP, AVRCP, A2DP
Audio Transmission FormatSBC, aptX
DAC Performance Specifications














SpecificationXLR OutputRCA Output
Output Level4.6 ± 0.3 Vrms2.3 ± 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
















SpecificationXLR Input – XLR OutputRCA Input – RCA Output
Rated Output Level4.6 Vrms2.3 Vrms
Frequency Response10 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 dB6 dB
(Test condition: Volume knob at Max position and an input signal to drive the output to the rated output level.)
Headphone Amplifier Performance Specifications

























SpecificationConditionXLR Input - Balanced OutputRCA Input - 6.35 mm Output
Maximum Output Power (Per Channel)Into 600 Ohm2400 mW600 mW
Into 32 Ohm3000 mW3500 mW
Rated Output Power
(Per Channel)
Into 600 Ohm800 mW200 mW
Into 32 Ohm2000 mW500 mW
Frequency Response10 Hz – 200 kHz (+0/-1 dB)
20 Hz – 20 kHz (+0/-0.04 dB)
10 Hz – 200 kHz (+0/-1 dB)
20 Hz – 20 kHz (+0/-0.04 dB)
THD+N at 1k Hz
(A Weight, 20 Hz – 20 kHz)
Rated Power< 0.0018% (< -95 dB)< 0.0056% (< -85 dB)
50 mW< 0.001% (< -100 dB)< 0.0022% (< -93dB)
Channel Separation> 120 dB> 90 dB
Signal-to-Noise Ratio
(A Weight, 20 Hz – 20 kHz)
> 111 dB> 111 dB
Dynamic Range
(1 kHz -60 dB, A Weight, 20 Hz – 20 kHz)
> 120 dB> 115 dB
Output Impedance0.5 Ohm0.7 Ohm
The unit is in great almost new condition with nil scratch on the body and display screen. The unit was only mildly used and selling for upgrades. All functions are in good order and overall unit is in perfect condition. Buyer will get the unit a good as new unit. 

Selling for RM 3,900.00 (negotiable for serious buyer) Please contact 012-3090744 (Subra) to deal. 

Following is the photos of the actual unit. No box but comes with complete and full accessories. Remote is wrapped with removable plastic for protection. 












Last edited by subval999 on Tue Mar 13, 2018 1:04 pm; edited 1 time in total (Reason for editing : Reposting)

subval999
New Member
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Number of posts : 9
Age : 42
Location : Shah Alam
Registration date : 2012-12-05

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