Pioneer Premier DEQ P9 Components Inside

For me, this is a quite surprise when I bought this used Pioneer Premier DEQ P9.

The Premier name is actually a Japanese version of the Pioneer car audio. The DEQ P9 I bought here is a stand-alone DSP and an universal digital preamplifier for high-end car audio. It is released on early year 2000 and it came from the Pioneer ODR family which the name ODR is the optical digital connection between the receiver unit. This DEQ P9 is intended to pair with the Pioneer DEX-P9 as an complete high-end car audio package.

I bought this unit quite cheap for one reason.

Let's take a look inside first.

Revisiting TDA1541 Ultimate DAC

My last post about the components upgrade of TDA1541 USB DAC was give me a surprised sound quality result. But it is not mine anymore. You can check to the previous post in here.

Long story short, this is started when someone contact me and because he is following my blog for some years and want to try my DAC built. He really interested with it and the conversation end up with a deal for the TDA1541 USB DAC. Then he got the DAC and amazed on how good is the sound from this vintage multibit DAC.

I am happy with that.

He like it and that DAC break the dogma for the vintage multibit DAC sound slow, boring and mellow.

Then he requested me to upgrade some components that I had posted before. The sound quality after the upgrade is in my opinion way better.

After that, I felt something missing.

I want to hear the sound from the TDA1541 DAC again.

So, this what I did.