SCL Satri Circuit Laboratory HDA-5520 MK2 Headphone Amplifier
Product code:SCL Satri Circuit Laboratory HDA-5520 MK2 Headphone Amplifier
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Please note that the delivery date may be delayed depending on the manufacturer's order status.
Headphone amplifier powered by AA batteries
The HDA-5520mk2 is equipped with a current output, enabling more precise reproduction by driving headphones with current. This headphone amplifier allows you to experience the true power of headphones.
It is the successor to the earlier model HDA-5520, which was popular overseas. The internal circuitry has been significantly upgraded from the original HDA-5520, resulting in a crisper, deeper sound.
Sealed headphones and earphones are close to the driving method known as elastic control, which offers the advantages of lower distortion when driven by current due to smaller impedance changes and less susceptibility to cables, and the amount of information reproduced is greater because it is driven directly by current. However, with open-type headphones, it is closer to the speaker drive method and the impedance change may be large, in which case voltage drive should be used.
Since it is battery powered, it does not suffer from power supply noise. It can be operated for about 40 hours on 12 AA batteries.
| Input | RCA x 1, 2.35mm phone jack x 1 |
|---|---|
| Outputs | Voltage output/Current output: 8.35mm standard headphone jack x1 |
| Frequency Response | 20kHz/-0dB, 100kHz/-0.3dB |
| Current output gain (times) |
Low: 32Ω/1.3, 100Ω/3.9, 200Ω/7.7, 600Ω/23.2 High: 32Ω/3.7, 100Ω/11.3, 200Ω/22.4, 600Ω/54 |
| Current Output Input Equivalent Noise (-dB) |
Low: 32Ω/89, 100Ω/98.4, 200Ω/98.3, 600Ω/89.4 High: 32Ω/98.1, 100Ω/98.2, 200Ω/95.4, 600Ω/96.1 |
| Distortion (1mW) |
Voltage output: Load resistance = 32Ω/0.08%, 100Ω/0.042%, 200Ω/0.028%, 600Ω/0.015 Current output: Load resistance = 32Ω/0.029%, 100Ω/0.018%, 200Ω/0.013%, 600Ω/0.011 |
| Maximum output: 1% distortion maximum output (mW) |
32Ω/14, 100Ω/42, 200Ω/82, 600Ω/37 |
| Gain | 2-position switchable |
| Power supply | 12 AA batteries |
| Outer dimensions | 45mm(H) x 127mm(W) x 170mm(D) |
| Weight | 450g (without batteries) |
*Bacoon Products will gradually change its logo and name to SCL (SATRI Circuit Laboratory). Please note that the logo and name will be changed to SCL (SATRI Circuit Laboratory).
