Bakoon Products HDA-5230MK2 Compact Headphone Amplifier

The HDA-5230MK2 only supports current drive. After developing a SATRI-IC circuit that can pull out the current drive system directly without passing through the voltage drive circuit at the development stage, it is possible to reduce the size of the product and to operate more precisely without going through the conversion process. Because the voltage drive and current drive have completely different sound characteristics, the current drive system makes the unique attractive sound that is difficult to listen to on other amplifiers.

By driving the headphones with current, the distortion is less compared to the voltage drive and it is possible to play more precise. Many headphones have little swell of the frequency characteristics of the impedance, and by using these headphones in the current output, it is possible to listen to many information that cannot be obtained by voltage drive.

On the back is a set of RCA terminals for input from source equipmentDC power supplyThere is an adapter connection terminal and a 6.5 mm single headphone output terminal at the front. The volume stage in the current drive system is proportional to the impedance size of the receiver and the volume is larger, so that the 300Ω headphones at the same volume can get approximately 10 times more volume than 32Ω headphones. For this reason, the HDA-5230MK2 current gain adjustment switch is used to match "HIGH" when connecting with a low impedance receiver.

The current output drives the headphones with a very high impedance, so the sound distortion is low, and the frequency characteristics change with the impedance curve of the headphone, so it adapts to almost all headphones.

The advantages of HDA-5230MK2 will stand out more to those who hear with a small volume. Even at low volume, the SN ratio is maintained as it is, and it transmits a clean signal. This is especially the strength when listening to a song like a large-scale classic that produces a large volume difference in one song. like the company's other amplifiersHDA-5230MK2is a gain adjustment method that adjusts the amplification rate of the signal and adjusts the amplification value. In this case, the SN ratio can be reduced by attenuation after amplification, as well as the problem of left and right deviation at low volume.

Very fast to rise, dynamic and powerful bass, realistic, deep vast and silent background and sound field. It is a sound that is different from many headphone amplifiers. With an overwhelming sense of presence and resolution, surprisingly natural playback sound and deep live sound, you won't get tired of listening to it for a long time. It is more comfortable than you can imagine and you can not let go once.

The HDA-5230MK2 is a model that disconnects the built-in battery from the HDA-5230 of the previous model and changes the specification to an external DC power supply. This makes it possible to use a portable battery pack on the go without being bound to battery time at home.

*Bakoon ProductsThe logo and name will be changed to SCL (SATRI Circuit Laboratory). Thank you for your understanding.

When I played music, I was confused by the sound that was completely different from what I had heard in the receiver. Certainly, despite selecting songs that I often listen to, the rich bass that I never heard on HD800S echoes. "Send my love" on Adele's "25" album pulls bass beats and Adele's voice. When I listened to a song that can feel a sense of heavy rhythm from usual, I could feel that the beat was further emphasized and the amount of sound was clearly increased. Fortunately, the bass is not as unnatural as it is often felt when boosting the bass in EQ, but as if it were originally. If you add a reference receiver that has been in the HDA-5230 for a long time and listen, you are likely to experience a sound that is very different from your own memory. This is one of the unique features of Bacoon Amp. The HD800 series I use is a receiver that has long been used by many people as a reference in the headphone world, but the reason is that every part is unbiased and makes a stable sound. However, the HD800S met HDA-5230 and turned into a receiver with an intense bass that had never been heard before. Usually, the impedance shown in the product specification is a value based on the 1 kHz band. In other frequency bands, impedance may vary. For example, the HD800S has a 300Ω impedance in the 1kHz band, but at 100 Hz it has an impedance value greater than 600Ω. In the case of voltage drive, assuming that the amplifier's performance is sufficient, the impedance difference of the receiver by the frequency band does not affect the volume, so the same volume can be obtained in the whole band. However, as mentioned above, the current-drive system impedances the volume, so the frequency band with high impedance is emphasized and heard. Depending on what kind of receiver you bite, the character of the HDA-5230 changes completely, so it seems to be less meaningful to examine the character of each sound region. However, when viewing the expressive part of the overall sound texture, when the overall sound expression is divided into both sharpness and softness, the expressiveness of HDA-5230 is close to softness. In terms of tone based on HD800S, even though it is close to a V-shaped tone, it is not stimulating and it is a sound that does not get tired even if you listen for a long time. This is a common part of listening to other receivers. If your system feels too rigid, HDA-5230 will solve the problem.