Bad sound

Ariel

JhonnyD It seems that he discovered the secret to making it sound good. In the equalizer, I assigned the first frequency of 20 Hz a Q Factor of 8 and the last frequency of 20 Mhz I gave it a Q factor of 0.7. And assign progressive values in the rest of the intermediate bands. That way the sound is no longer artificial. Undoubtedly, properly assigning the Q Factor is very decisive so that there is no overlap between the different bands of the equalizer.

madusaya

Ariel
Please give me the equal picture you set up.

JhonnyD

Ariel That would have been my next question. 👍

Ariel

madusaya

Marv2525

madusaya hey are you good with setting up the equalizer

madusaya

Ariel
Thank you, I'll try to copy it.

ciubaka

madusaya theres a soundmaster app which allow to share the settings without need of copying them

Ariel

JhonnyD Also check the thermal paste on the amplifier. It is a tda 7808. It is not a 7803. For my taste it had too much thermal paste. Lots of space between the chip and the aluminum case. As a supplement, I placed a thin sheet of copper in front of the chip so that it fits tighter and the thermal paste is only a thin film.

Ariel

JhonnyD While there was an improvement in sound, I can't achieve the same sound quality as the S160. It seems that the Dudu7's equalizer lacks more range and precision in the band controls. +10 and -10 is not enough.

madusaya

ciubaka
저는 다운로드받을수 있는게
1개뿐입니다

Ariel

JhonnyD Hi. I have discovered a problem. As I mentioned below, my unit came with a 7808 TDA chip. It is not a 7803. The problem with the 7808 is that it only supports 4 ohm speakers. And in my car I have a speaker system with less than 4 ohms. That's why the chip must be heating up too much and I don't have good sound quality. I am making a complaint to the seller because at the time of purchase the specifications published about the product only talked about TDA 7803. I never saw photos or information that say it could have 7808.