BA-3 technical highlights:
1 Reasonable layout
Reasonably stagger Bluetooth to minimize interference
2 source synchronous clock technology
Bluetooth IIS data transmission is lack of clock line, ZERO through technical processing, get the clock synchronized with IIS signal
3Professional power supply
Up to 4 AC voltage inputs, 8 LDO voltage regulators on the board to minimize mutual interference,
4Desktop HIFI dedicated decoder chip AK4493EQ
AK4493EQ is a new generation of AMK&x27;s mainstream decoding chip, which is close to AK4497 in tone and is commonly used in professional desktop decoding on various types of stations;
5 Pure straight LPF, no coupling capacitor, direct sound transmission
6 independent op amps for left and right channels, high separation and accurate positioning
Answers to common questions (Buyer must see)
Q: Can my phone match BA-3 Bluetooth 5.0?
A: The BA-3 Bluetooth module uses Qualcomm QCC3008, supports APT-X (16Bit-48K) and is backward compatible at the same time, and all the desktops above 9.0 support APT-X, HD, LDAC (Apple has not yet tested)
Q: Will BA-3 freeze when playing?
A: Caton is not generated by the Bluetooth module; it is generated by the mobile phone; most of the WIFI, Bluetooth and 4G in the mobile phone are shared antennas. When playing online music files, especially when opening APT-X and playing files over 30M , You will find that the playback software buffers data in a circle from time to time.
At this time, players are advised to download the music file to the mobile phone and then play it, so that there will be no stuck.
Q: What is the difference between BA-3 and other Bluetooth decoding?
A: The technical highlight of BA-3 is the important difference from other Bluetooth decoding. Here we will introduce the "source synchronous clock technology". Anyone who knows the Bluetooth module knows that the Bluetooth module IIS signal is lack of MCK clock line, many Due to lack of technology, merchants use low-performance DA chips to bypass this threshold at the expense of sound quality. Another method is to use a desktop professional DA chip with an external clock. The external clock will cause a problem of unsynchronized signals.
The power supply system is also a major advantage of BA-3. Electricity is the mother of sound. BA-3 uses four AC inputs and eight LOD voltage-regulated targeted power supplies. Compared with the common Bluetooth decoding, it shares a 12V DC input. The scheme of divided voltage power supply has been technically suspended by BA-3. Thanks to the power supply advantages of BA-3, LPF achieves "straight couple". Compared with the general Bluetooth decoder with output coupling capacitor, BA-3 hangs others in terms of sound transparency, details, sound field positioning, and sound dyeing.
In the decoder, another device that affects the sound quality is the DA chip. Generally, Bluetooth decoding is usually a low-performance non-mainstream chip, such as PCM5102; some bad businesses hide the low-performance DA chip suffix to deceive the unknown Xiaobai. A common example is the ES9018-28-38 series. Bad merchants often touch the porcelain desktop chip without the suffix. The suffix with M, such as ES9028-Q2M, is a low-performance DA chip for mobile phones or tablets. BA-3 is an up-and-coming AK4493EQ mainstream desktop DA chip, which is obviously different in nature, especially in dynamics.
Q: What is the sound quality of BA-3?
A: Everyone&x27;s system and listening experience are different. The owner&x27;s subjective listening experience: One ear is a product that is resistant to hearing. It has a certain resolution but is not thin, the details are good, the sound is not overly modified, and the sound field is wide. The dynamic is fierce, but the rare thing is that there is a little sense of air.
Q: Is there any difference in sound quality between BA-3 and Orthodox desktop decoding?
A: There is still a light difference from the excellently designed XMOS-AK4493 decoding product. The difference is the blackness of the background. The main reason is that the Bluetooth module Jitter is larger than XMOS.