Full digital amplifier with chip STA326

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Is it known that the STA326 is the same as this chip ? It is originally from 2004 !!

http://www.apogeebio.com/ddx/PDFs/DDXi-2051.pdf

Yes, I think the STA chips are either identical or almost so to their DDX predecessors. It's very sad to see their full capabilities and not have access to them - yet even in the cheap and limited Chinese implementations we have available they can sound superb.
 
A lot of useful feedback..thx you.

A heard an FDA for the first time a few days ago...china made and I looked at PCB...many corners cut.

However the sound was... impressive.

I wonder what can be achieved with a proper design.

In France those seems to be the "a la mode" a fad if you want. However , when I listened to a mediocre FDA amp , I realized that they embraced this technology with good reason ... why arent FDA more popular in the rest of the world ?
 
Is there a IC (Stm or TI) thats considered better in the FDA ?

Although I've not heard the TI chip(s) I'm in agreement with the other comments here - its more about implementation than specific chip. I couldn't be sure I could tell the difference between D2 and STA when they're optimized in an application. I'd also like to see platform-style multichip implementations for creating active speakers (2 and 3 way plus sub).:D
 
Lets take for example Alientek D8

Anyone knows how the analog signal is processed?

Amp has 2 aux analog inputs...

if I use external dac with that amp and send analog sygnal from dac to alientek how it will be processed...

Is there separate analog amp or signal is back converted to digital?
I am lost on that one.

Thanks
 
Thats interesting....

I thought about replacing my AV receiver with this amp Alientek D8

do you think the sound quality would outperform my old yamaha RX-V765 ?

I only use it with 2chanel speakers and all components I have are connected with HDMI to yamaha (pc, Satelite receiver, Bluray) and from AV signal goes to Sony smart tv again through HDMI.


Alientek is much smaller and if sound quality would improve over AV I could teoreticly connect all equipment with HDMI directly to TV and take Optical audio signal from TV directly to Alientek, along with coax from Bluray and usb from pc also directly to alientek.


I know how SMSL SA-98E (TDA7498E) and SMSL SA-36A (TPA3118D2) sounds as i use them with smsl m8 dac (ES9018/XMOS) and to my ears they both sound great for money and easly outperforms yamaha ,so question is would alientek on its own could compete with them?

What do you think guys?
 
I know how SMSL SA-98E (TDA7498E) and SMSL SA-36A (TPA3118D2) sounds as i use them with smsl m8 dac (ES9018/XMOS) and to my ears they both sound great for money and easly outperforms yamaha ,so question is would alientek on its own could compete with them?

What do you think guys?

For music purposes and fed a digital signal the D8 sounds, to my ears, in a completely different class to any AV amp I've listened to. If you're driving a home cinema setup and want the other things an AV amp can do then that's what you need - otherwise I'd give the D8 a try.
 
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Critical, as always ;) The datasheet is non existent so we can not go beyond some hollow phrases regarding this IC. Company does mention it to be "tiny PCB footprint all while delivering the lowest system BOM count and cost". For cheap gaming and computer devices. Probably even lower class than PAM8403/8406 etc. No mentioning of HiFi use. This IC can hardly be the future for serious purposes with 2W/channel.

I do not really understand the negativity towards FDA. Are analog input class D boards the way to go ? I think not as there will still be need for analog source switching and analog volume control. I think the future will be FDA as it is cheaper.

Cheaper always wins. Better focus on accepting and improving FDA.
 
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Critical, as always ;) The datasheet is non existent so we can not go beyond some hollow phrases regarding this IC. Company does mention it to be "tiny PCB footprint all while delivering the lowest system BOM count and cost". For cheap gaming and computer devices. Probably even lower class than PAM8403/8406 etc. No mentioning of HiFi use. This IC can hardly be the future for serious purposes with 2W/channel.

I do not really understand the negativity towards FDA. Are analog input class D boards the way to go ? I think not as there will still be need for analog source switching and analog volume control. I think the future will be FDA as it is cheaper.

Cheaper always wins. Better focus on accepting and improving FDA.

I think the future will be single chip combining FDA and DAC as this will be even cheaper than FDA with supporting analogue components and will have the advantage of shortest possible signal paths.
 
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Not exactly very new but I got a Denon PMA-50 yesterday. Mainstream brand that also produces FDA, many are already following (or will follow).

Nice features, finally one with enough inputs, volume knob in the right place, on/off switch on the front. It is too early to judge sound quality.
 
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No I would like to but I don't have a D8 :) I have some other amplifiers and I will compare. First impressions are that it sounds OK but not as good as the Wadia PowerDAC 151. Since I haven't compared directly I might be wrong on that. Will need to put some time in it but I am quite busy so it might take some weeks.

PMA-50 has some benefits like the ability to play DSD. It has the stuff the other amps I have are missing.
 
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