Which ic amplifier is better?

Allan_Hun said:

I used to have a 100$ android HU feeding 3 amps through a Dayton DSP.
At low volume the s/n ratio was quite bad, but at normal listening volume it wasn’t bad and I could not hear it with the engine running.
So I would like to know what you think needs to be improved about the preouts and how?
What is dynamics FX and what do you miss from viper?

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I normally test the sound in my workshop as I have different car speakers and home speakers setup so I will hear literally everything… Car engine noise is therefore not present.

The radio sound is not great but can be improved by removing a few internal bypass capacitors and changing some others to much more powerful ones. The radio sound is better on units with NXP radio chip that supports RDS but frankly I’d rather listen to DAB or Internet Radio as that sounds goes through the “normal audio channels”.

There are ways of “cleaning up” the output from RCA’s by modding internal components. I’m yet to test it but can tell you for sure that the RCA outputs are “noisy”. I compared the audio quality of Kenwood and Sony pre-outs side by side with one of the $100 Chinese Androids, and at least in lab environment, the difference was noticeable.

Viper4Android is a as powerful audio processing tool as any piece of software can deliver on an Android. Coming from a studio recording background (used to be an audio recording engineer and composer), I see this as a complete tool to perfect the car audio by softening the bad and boosting the good.

Dynamics FX for example allows you to utilise compression of certain frequencies at certain volume levels so that no matter of how quiet or loud the overall volume is, you sound stage will be perfectly balanced. It’s a bit like fluent EQ.

And there are a number of other modules that will allow things like adaptive stereo imaging, frequency boost, distortion prevention (I have pushed TDA7850 to it’s limits with no audible distortion), noise cancelling, delays, reverbs – pretty much any studio effect you can think of.

It is a complex tool but once done right, it’s really impressive.

To give you an example, it took me 8 hours to properly calibrate the sound in our previous car that had one if these Mediatek Android Head units (modded to the teeth of course). Using stock BOSE speakers and 1 underseat sub in a fairly large SUV, it was uncomparable with the stock amp setup. Yes I spent a month modding the unit itself but for $200 I paid for the head unit and any spare parts for modding, it sounded like a 20-30 times more expensive audio setup and the best part was that it was a powerful Android as far as head units go.

I normally test the sound in my workshop as I have different car speakers and home speakers setup so I will hear literally everything… Car engine noise is therefore not present.The radio sound is not great but can be improved by removing a few internal bypass capacitors and changing some others to much more powerful ones. The radio sound is better on units with NXP radio chip that supports RDS but frankly I’d rather listen to DAB or Internet Radio as that sounds goes through the “normal audio channels”.There are ways of “cleaning up” the output from RCA’s by modding internal components. I’m yet to test it but can tell you for sure that the RCA outputs are “noisy”. I compared the audio quality of Kenwood and Sony pre-outs side by side with one of the $100 Chinese Androids, and at least in lab environment, the difference was noticeable.Viper4Android is a as powerful audio processing tool as any piece of software can deliver on an Android. Coming from a studio recording background (used to be an audio recording engineer and composer), I see this as a complete tool to perfect the car audio by softening the bad and boosting the good.Dynamics FX for example allows you to utilise compression of certain frequencies at certain volume levels so that no matter of how quiet or loud the overall volume is, you sound stage will be perfectly balanced. It’s a bit like fluent EQ.And there are a number of other modules that will allow things like adaptive stereo imaging, frequency boost, distortion prevention (I have pushed TDA7850 to it’s limits with no audible distortion), noise cancelling, delays, reverbs – pretty much any studio effect you can think of.It is a complex tool but once done right, it’s really impressive.To give you an example, it took me 8 hours to properly calibrate the sound in our previous car that had one if these Mediatek Android Head units (modded to the teeth of course). Using stock BOSE speakers and 1 underseat sub in a fairly large SUV, it was uncomparable with the stock amp setup. Yes I spent a month modding the unit itself but for $200 I paid for the head unit and any spare parts for modding, it sounded like a 20-30 times more expensive audio setup and the best part was that it was a powerful Android as far as head units go.