die Kopfhörerboutique

DEMO G-OPPO HA 1 Black

2579 EUR1998 EUR / In stock.

Modifizierte Version des OPPO HA 1
von Dr. Gert Volk.

Demomodel. Sehr guter Zustand. 300 Betriebsstunden. Zubehör, Verpackung alles vorhanden.


einfach Probehören !

Überarbeitung des Analogpfades, komplette DC-Kopplung ohne Kondensatoren, bessere Spannungsversorgung, neue Clock mit Jitter <1ps für DA-Wandler, extrem rauscharme Versorgung der Clock durch fünfstufigen Superreg, ebensolche Versorgung der Analogpins des DA-Wandlers, sechs extrem niederohmige und kräftige Ausgangsstufen mit zugehöriger Spannungsversorgung.

The OPPO HA-1 Headphone Amplifier, DAC & Pre-Amplifier.
Drawing upon the proven circuit design of the award-winning OPPO BD players, the HA-1 combines an uncompromising Class A balanced power amplifier section with the performance of the ESS 9018 Sabre32 Reference DAC.
OPPO designs the HA-1 headphone amplifier with the same universal approach as our Blu-ray players. The HA-1 is a high performance headphone amplifier, and it doubles as an asynchronous USB DAC, a stereo pre-amplifier, a digital audio dock for mobile devices, and a Bluetooth audio transport. Its fully balanced design and numerous inputs ensure the best in fidelity and versatility.
Specifications
Designs and specifications are subject to change without notice:
General
 
Dimensions (W x H x D)
10.0 x 3.1 x 13.1 inches, 254 x 80 x 333 mm
Mass
13.0 lbs, 5.9 kg
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, 10 mA 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
XLR Output
RCA Output
Output Level: 4.6 ± 0.3 Vrms
Output Level: 2.3 ± 0.3 Vrms
Frequency Response:
10 Hz – 170 kHz (+0/-3 dB)
20 Hz – 20 kHz (+0/-0.07 dB)
Frequency Response:
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)
THD+N at 1 kHz (A Weight, 20 Hz – 20 kHz):
< 0.00056% (< -105 dB)
Channel Separation:
> 105 dB
Channel Separation:
> 105 dB
Signal-to-Noise Ratio (A Weight, 20 Hz – 20 kHz):
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
Dynamic Range(1 kHz -60 dBFS,
A Weight, 20 Hz – 20 kHz):
> 113 dB
(Test condition: USB DAC input in Home Theatre Bypass mode and the volume knob at Max position.)
 
Pre-amplifier Performance Specifications
XLR Input – XLR Output
RCA Input – RCA Output
Rated Output Level: 4.6 Vrms
Rated Output Level: 2.3 Vrms
Frequency Response:
10 Hz – 200 kHz (+0/-2 dB)
20 Hz – 20 kHz (+0/-0.04 dB)
Frequency Response:
10 Hz – 200 kHz (+0/-2 dB)
20 Hz – 20 kHz (+0/-0.04 dB)
THD+N at 1Khz (A Weight, 20 Hz – 20 kHz):
< 0.00056% (< -105 dB)
THD+N at 1Khz (A Weight, 20 Hz – 20 kHz):
< 0.00071% (< -103 dB)
Channel Separation:
> 120 dB
Channel Separation:
> 110 dB
Signal-to-Noise Ratio
(A Weight, 20 Hz – 20 kHz):
> 110 dB
Signal-to-Noise Ratio
(A Weight, 20 Hz – 20 kHz):
> 105 dB
Dynamic Range
(1 kHz -60 dB, A Weight, 20 Hz – 20 kHz):
> 120 dB
Dynamic Range
(1 kHz -60 dB, A Weight, 20 Hz – 20 kHz):
> 115 dB
Maximum Gain (100 mVrms input):
6 dB
Maximum Gain (100 mVrms input):
6 dB
(Test condition: Volume knob at Max position and an input signal to drive the output to the rated output level.)
 
Headphone Power Amplifier Specifications
XLR Input – Balanced Output
RCA Input – 6.35mm Output
Maximum Output Power (Per Channel)
into 600 Ohm:
2400 mW
 
Maximum Output Power (Per Channel)
into 32 Ohm:
3000 mW
Maximum Output Power (Per Channel)
into 600 Ohm:
600 mW
 
Maximum Output Power (Per Channel)
into 32 Ohm:
3500 mW
Rated Output Power (Per Channel)
into 600 Ohm:
800 mW
 
Rated Output Power (Per Channel)
into 32 Ohm:
2000 mW
 
Rated Output Power (Per Channel)
into 600 Ohm:
200 mW
 
Rated Output Power (Per Channel)
into 32 Ohm:
500 mW
Frequency Response at Rated Power
10 Hz – 200 kHz (+0/-1 dB)
20 Hz – 20 kHz (+0/-0.04 dB)
Frequency Response at Rated Power
10 Hz – 200 kHz (+0/-1 dB)
20 Hz – 20 kHz (+0/-0.04 dB)
THD+N at 1kHz (A Weight, 20 Hz – 20 kHz)
Rated Power:
< 0.0018% (< -95 dB)
 
THD+N at 1kHz (A Weight, 20 Hz – 20 kHz)
50mW:
< 0.001% (< -100 dB)
THD+N at 1kHz (A Weight, 20 Hz – 20 kHz)
Rated Power:
< 0.0056% (< -85 dB)
 
THD+N at 1kHz (A Weight, 20 Hz – 20 kHz)
50mW:
< 0.0022% (< -93dB)
Channel Separation:
> 120 dB
Channel Separation:
> 90 dB
Signal-to-Noise Ratio
(A Weight, 20 Hz – 20 kHz):
> 111 dB
Signal-to-Noise Ratio
(A Weight, 20 Hz – 20 kHz):
> 111 dB
Dynamic Range
(1 kHz -60 dB, A Weight, 20 Hz – 20 kHz):
> 120 dB
Dynamic Range
(1 kHz -60 dB, A Weight, 20 Hz – 20 kHz):
> 115 dB
Output Impedance:
0.5 Ohm
Output Impedance:
0.7 Ohm
(Test condition: Volume knob at Max position and an input signal to drive the output with 600 Ohm loads to the rated output power, unless otherwise noted.)