Hi all!
Faced a strange problem. I have a portable player Ibasso DX220 and I mostly listen to music through it in the car via AUX. There are two reasons - I don't have time to listen with headphones at home, and I always move behind the wheel, in the car there are premium acoustics and the sound is well revealed. Like all music lovers, I have a desire to improve the sound quality or hear an interesting alternative sound. Anyone who knows this player model knows that it has interchangeable amplifiers, i.e. you can buy 8 more different amplifiers, demonstrating different sounds. So I first listened to the player with an AMP1 amplifier through a 3.5 output. Then I read on one forum an opinion that through a balance of 2.5 using a soldered 2.5 to 3.5 AUX cable, the sound would be more interesting. I ordered a high-quality cable from home-made ones and I can really say with confidence that the sound from the balanced output is more transparent, with higher resolution, more pronounced bass. (listened to several people to exclude self-hypnosis
). Time passed, I wanted something else, I read on the forum that the AMP4S amplifier has a very interesting sound and decided to try it. I bought it, but it has a 4.4 output and I ordered the cable again. And here comes the problem. The sound in the car began to go with terrible distortion, you can hear that the amplifier is being excited, the battery is starting to drain quickly. After reading everything on the net, I came to a fellow radio engineer, we rang the cable and found that it was soldered according to the scheme L + together with L- to the left channel, R + together with R- to the right channel, GND to ground. This combination did not work, three more schemes were offered on the network:
1. L+ to the left channel, R+ to the right channel, L- and R- solder together and to the ground, gnd mute.
2. L+ to left channel, R+ to right channel, L- and R- and gnd solder together and to ground.
3. L+ to left channel, R+ to right channel, gnd to ground, L- and R- to mute.
Option 3 started playing and is playing with a friend in the car, both of us at home through the AUX input in home acoustics, but in my car the same sound distortion with terrible noise. While the phone is via AUX, the player with AMP1 plays through 3.5, 2.5. They thought that the issue was in the 3.5 plug, they took a working cable 3.5 to 3.5 that plays in the car and soldered a pentacon to it according to the working scheme 3, the result is distortion. What can be wrong???
