Make the things better

HPA-2 CLASSIC headphone amplifier is the improved model of HPA-2, the optimized circuit design, new style appearance, exquisite processing technology and excellent performance to make it better.


Details everywhere

The high-brightness chamfering edge design of front panel, ultrahigh speeds revolving cutting tools elaborately carved out the mirror-like gloss edge on front panel, further improve the visual texture. The knurling design of volume knob to add the friction of the finger contact area can get better grip compare with polishing surface treatment, red mark on volume is more clear and distinguishable.



More choices
More enjoyments

The new gain control function, switching the gain switch on the rear panel to adjust output gain, two sections gains to match different headphones.


Hi-Res Compatibility

The new design of USB module is used XMOS U series chip and CS4398 high-performance D/A chip, support PCM-24bit/192kHz and DSD-2.8MHz/5.6MHz signal playback, not only DoP and ASIO Native two DSD playback methods, but also can be used with the iOS and the most android devices.



Functional & Safe

Class A work mode can feature it easily to drive all kinds of low sensitivity dynamic headphones; can be used as a preamplifier. The headphone protection function and power on/off noise elimination function to prevent the wrong voltage to damage your headphones and brings you the better user experience.


Performance heart &
Simple appearance

Cherry-pick every components, the ALPS 27 type volume potentiometer, WIMA/Nichicon audio grade capacitances, audio dedicated power supply transformer, and precision non-inductive resistances, all of these selective components to ensure get the best playback performance from HPA-2 CLASSIC.

Speciflcations

Technical

Line Output

SNR
>-95dB at 20Hz-22kHz A-Weighting
THD+N
<0.0017% at 1kHz 1Vrms A-Weighting
Frequency Response
20Hz-20kHz (+0.01dB/-0.04dB)
Output Impedance
51ohms

Headphone Output

SNR
>-95dB A-Weighting
THD+N
<0.0017% at 300ohms 13mW 1kHz A-Weighting
Frequency Response
20Hz-20 kHz (+0.01dB/-0.04dB)
Output Impedance
10 ohms
Output power
110mW at 33ohms / 310mW at 300ohms / 160mW at 600ohms
At THD+N=1%

Gain

L=+6dB H=+15dB

USB Input

USB芯片
XMOS Asynchronous USB Audio class 2.0
D/A芯片
CIRRUS LOGIC CS4398
SNR
>-103dB A-Weighting
THD+N
<0.0009% at 1kHz A-Weighting
PCM SAMPLE RATE
16-24 Bit/44.1kHz 48kHz 88.2kHz 96kHz 176.4kHz 192kHz
DSD SAMPLE RATE
DSD2.8MHz/DSD5.6MHz(DoP & ASIO Native)

System Support

Windows 7/8/8.1/10 systems need to install the driver supplied
Mac OS X 10.6.4 and above version have native support and do not require a driver
Can be used with the most of android devices via the OTG cable
Can be used with iOS devices via the Apple Camera Connection Kit.

 

Power

Power Voltage
230V position is fit for AC220V-240V 50/60Hz
115V position is fit for AC100V-120V 50/60Hz
Power Consumption
<15W
Fuse
AC250V/500mA 5×20mm

Others

Dimension
280×120×47mm L×W×H(Including the protruding part)
Weight
1.22kg
NOTE: For the purpose of improvement, specifications subject to changes without prior notice.

Accessory

Driver&Manual Disk
× 1
Power Cord
× 1
USB Cable
× 1