MTCD-MTCE PX5 Head Unit Audio Tuning Thread

[bluemask69]

I'm not an expert of car audio and i know the chinese head units are not the best (some people said "very poor" as real) in car audio but in this thread we can discuss the possible car audio quality improvements with the PX5, starting from the basic units to analyze the new ones with the new Analog Devices DSP (sold as optional) .

Personal experience in car audio tuning (with or without PX5 products) are very welcome!!

The standard PX5 units are equipped by ST's amplifier chips:

TDA 7388 (old PX5 units) 4x45W http://www.st.com/content/ccc/resou...df/jcr:content/translations/en.CD00179160.pdf

TDA 7851 4x48W MOSFET: http://www.st.com/content/ccc/resou...df/jcr:content/translations/en.CD00278574.pdf

The new PX5 units with Android 8 seems to be optionally powered by a DSP from Analog Device, the ADAU1701JSTZ chip (https://docs-emea.rs-online.com/webdocs/14b6/0900766b814b6bb7.pdf): i read the chip is possible to program with SigmaStudio software with related interface (http://www.analog.com/en/design-cen...opment-software/ss_sigst_02.html#dsp-overview).

 

[bluemask69]

reserved

 

[bluemask69]

This is my experience: i have an Audi A3 SPB TDI 2.0 year 2007 with Audi Bose Sound System (speakers+subwoofer+amplifier) .
In the past i had the old PX2 (RK3066 dual core) and sound was very bad in comparison with the original Audi Symphony radio (Blaupunkt) , ViperFX app not increased sound quality. Now I have the first model of PX5 (GS) with TDA 7388 chip, the audio result is better than PX2 of course but i was looking for best result in car audio quality...finally i had the right information from a very expert friend and i bought the Audison Prima AP 8.9 external DSP amplifier (http://www.audison.eu/products/ap8-9-bit/) . The AP8.9 was connected to speakers out of PX5 and to Bose amplifier. The quality of audio is totally improved and sound distribution in car is now perfect. Playing Pink Floyd's flac files is now fantastic for my ear, and the same wonderful result is from radio channels.