Bakoon Products HDA-5210mk4 Headphone Amplifier

From the HDA-5210mk3, which was developed for the purpose of making headphones sound with the best sound quality, this new model is equipped with a mk4 circuit that has evolved further. With the addition of the new HIBIKI-IC to the SATRI-IC, the thickness, amount of information, and realism of the sound have increased compared to the MK3. It also stands up faster when the power is turned on. It also has a high-impedance current output. By driving the headphones with current, distortion is reduced compared to voltage drive, and more precise playback is possible. Many headphones have a low swell in the frequency response of the impedance, and if you use these headphones with a current output, you can listen to a lot of information that cannot be obtained with voltage drive.

The HDA-5210mk4 has a SATRI-LINK current input that is intended to be combined with the company's preamplifiers and D/A converters. In addition, with a single voltage input, good results can be obtained in combination with preamplifiers and D/A converters other than the company. The gain of the amplifier is controlled by a 23-step attenuator and can be continuously variable up to 20 dB. Unlike normal volume controls, there is no S/N degradation even if the volume is lowered.

The voltage output is suitable for headphones with impedances up to approximately 100 Ω. The current output drives the headphones with a very high impedance, so there is little distortion of the sound, and the frequency response changes depending on the impedance curve of the headphones, so it is suitable for almost all headphones. The gain of the current output can be switched with the CURRENT GAIN switch to match the headphones. In addition, the current output and the voltage output can be used at the same time. In that case, the output current of the current output will be the current flowing through the headphones connected to the voltage output. Therefore, the output current of the current output reflects the personality of the headphones connected to the voltage output. So, the sound changes depending on the headphones connected to the voltage output.

Very fast starts, dynamic and powerful bass, immersive, deep, expansive and silent background and sound field. It is a sound that sets it apart from many headphone amplifiers. The overwhelming sense of realism and resolution, surprisingly natural reproduction sound, and deep live sound will not tire you even if you listen to it for a long time. It's more comfortable than you can imagine, and once you listen to it, you can't let it go.

input	Voltage input: (RCA) x 1, Current input (SATRI-LINK): BNC x1
output	Voltage Output: Standard Headphone Jack x1, Current Output: Standard Headphone Jack x1
Frequency response	20kHz/-0.03dB, 100kHz/-0.17dB
Headphone impedance	33Ω
Matched impedance	8-600Ω
Maximum Output	Voltage Output: 1000mW Current Output: 500mW
gain	4.5 times
power	100V, 120V, 220V, 240V/50, 60Hz
Outer dimensions	78mm(H) x 235mm(W) x 295mm(D)
weight	2.9kg

*Bakun Products will gradually change its logo and name to SCL (SATRI Circuit Laboratory). Thank you for your understanding.