[Android Head-Units] kaween:
[MENTION=5560428]djblaze852002[/MENTION] :

I don't but I recently read an "englrus" google translation of 4pda.ru where changing the ringphone was attempted. I've no idea if it was succesful as the translation went completly bonkers halfway, but I suggest you take a look there and see if you can make heads or tails from it.

As for the droid version thing : ZexGx does have the same unit, and he has rooted it. I'm pretty sure his droid version was quite a lot older than the one you're running. I suggest you contact him for feedback and possible assistance regarding this issue if root of the 2.8.10 would fail.

I'm happy to read the unit behaves as you want. As for V4A, as much as I do like it, it will not better the streams that are fed directly by hardware (radio tuner, TV tuner, ... ect) so basically you'll influence your mediaplayer, your navi sound (you can get some really weird results there if you go overboard with the effect ! :) ). If root would fail, replacing the mediaplayer by something like Poweramp full or Rocketplayer full should result in a serious enhancement of the sound.

That being said, compared to another unit I only recently installed (Joying RK3188 machine) in a car of a friend of mine, I can tell you : the sound quality of the AN21-U is _a lot better_ than that of this Huifei&co clone out-of-the-box. The Joying amp .... no way that's 4x45W. Maybe half of it. But it's not just power that it lacks. For the lack of a better word, especially the radio sound sound .... "shallow".

The FM tuner of the Joying in terms of reception is ... acceptable, but not as good as on the AN21-U. It DOES have Radiotext (grrr...) though. Not flawless, but it is there. AM reception is practically non-existant compared to the AN21. BT handsfree calling is virtually impossible (echo), apparantly there's a hardware fix for that involving removing a cap from the mainboard so I have good hopes that wlll be fixable. The unit is very fast compared to the AN21 ... once it has booted. Booting takes about 23 seconds, so comparable to the AN21, subjectivly the lack of any radio/last station preset sound during the process makes it feel longer. 7" screen : niiiiiiiiiice, far better in quality also compared to my AN21.

As long as there's no safe root for this unit, quite a lot of stuff I take for granted (SDVC, 3th party control for SWC ...) isn't possible, but I'm sure that will come soon.

But as pure sound quality goes, of all the anrdoid unit's I've ever tested and used or owned, nothing came close to the later versions of the WinCa S150 models. Full, working 9 channel EQ (not like on the Joying : 9 channels, without frequency notation because .... only 3 of the controls do actually work ... ), full hardware DSP, multistep Woofer control and freq limiter .... and -note this- a working mic level control for BT calling. The unit compared to todays standards is hopelessly underpowered (800Mhz single core Samsung-like cpu) and with only 512MB you're better of keeping the unit running android 2.3. But with all shortcomings and whatever not : the amp/dsp part of the S150 was years ahead of the competition, even today it puts these new Quadcore things to shame when it comes to the pure output quality of the sound subsystem.

So basically, I'm not looking for a replacement for my AN21_U. It's not the fastest, not the most up-to-date, not the best sounding unit of them all. But it does perform without any serious weakness or dealbreaker compared to the other units I've tested. Of course, unless you have a RadioText Fetisj like I do. :)

As long as there are no affordable units with a IPS screen, with a 5.0 support, with -immideate ready upon power-, RDS full support with flawless RadioText, really good sound subsystem inclusive an excellent (Parrot-like) handsfree system, a full application independant mixer allowing free volume control for every sound stream and soundsource the hardware can manage (like on the S150), full root and (one can dream) full open and documented software .... the AN21 will do quite nicely thank you.