TPA3221

[hansueli]

So sad.....


I have the TPA3221 board with QC3008 bluetooth and very happy with it. Its the same manufacturer. Really well built and good quality components.




Yes but the amps in PBTL mode are only more powerfull with low impedanz.... the same for TPA3116 for example... the 100W are only with 2ohm speaker...

 

[daniboun]

For the Twin version :

 

[hansueli]

From datasheet.... as you can see for 4ohm no big difference...

 

[daniboun]

That s right )

 

[abraxalito]

Looks the same as this amp out of Kunming on Taobao for $60 right?

?????? ?TPA3221?? ?? ??? HIFI??-???

The same seller also has this more compact $46 version with just a single board :

?????? TPA3221?? ??? HIFI??-???

 

[daniboun]

I confirm ! the same amp

 

[bushellj]

So I guess the big question is how does the TPA3221 chip compare to the TPA3251 and TPA3255 chips. The TI spec seems to be lower with higher distortion figures but the design is such that it is easier to build a small amplifier with less components.

The amplifier above seems to be taking this chip the the extreme with two mono channels. You might ask why they didn’t use the TPA3251 chip but I guess this would need more components. The power supply limitations seem strange as clearly the chip will operate up the 30 volts. The volume control even stranger !!

Is there room for a remote controlled volume control - that would be a nice upgrade !

 

[abraxalito]

So I guess the big question is how does the TPA3221 chip compare to the TPA3251 and TPA3255 chips.

Subjectively speaking the TPA3221 can sound better because it gives the option to optimize the power supply for the signal stages of the chip. That's very hard to achieve on the TPA325X which isn't designed to have its on-chip regulators bypassed. In terms of measurements, I think TPA325X win on most counts.

I agree its strange they didn't design to the max 30V the chip permits.

 

[daniboun]

I agree; personnaly I would bypass the volume pot.. I will do it soon.

This brand has produced a special version of the TPA3251 but impossible to find it anymore...

 

[bonjonno]

Thanks Daniboun for the reviews! BTW I'm a drummer too. Been at it 60 years. The pandemic curtailed my gigging but may return soon...

 

[daniboun]

Thanks Daniboun for the reviews! BTW I'm a drummer too. Been at it 60 years. The pandemic curtailed my gigging but may return soon..

Yeah ! really nice ) I wish you could return soon to your drum )
Checkout :

Money For Nothin Live @ Amberieu B52 by justdani | Free Listening on SoundCloud

 

[bonjonno]

Cool! I was in a band in the 90's that did a hot version of Sultans of Swing. here's half of a live album we gave away last year The Suspects Live - Album by The Suspects | Spotify

 

[FauxFrench]

 

[vilding]

Hi amigos,



Being a drummer, I am particularly sensitive to this point. I used to collect cymbals and have a ticklish ear lol )


https://ibb.co/6vsPCph

Words of truth. First things I listen for as a drummer are cymbals and snare with brushes. On poor gear those always sound muddled and pixelated. On good gear you will really hear the instrument

 

[daniboun]

Words of truth. First things I listen for as a drummer are cymbals and snare with brushes. On poor gear those always sound muddled and pixelated. On good gear you will really hear the instrument

I share this opinion ) the subtleties of brushes (drumming) are very difficult to discern on a mediocre amp! With my Hypex, Purifi and TPA3255 I have always had satisfaction)

 

[daniboun]

Cool! I was in a band in the 90's that did a hot version of Sultans of Swing. here's half of a live album we gave away last year The Suspects Live - Album by The Suspects | Spotify

Nice Bro ) Will listen with pleasure )

 

[bonjonno]

Great! The recording last year was a completely different group. Sorry I was fuzzy about that.

 

[peroz]

Hi guys,

Upgrading from TPA3116 to 3221, so I bought these boards:
Sunbuck TPA3221 Audio Amplifier Board 100W *2 High Power Class D Digital Power Amplifier Board|Amplifier| - AliExpress


Can someone please tell me what the input connector is called? I would like to prepare everything before they get from China, and I'm done with soldering on these boards, because it is so easy to screw stuff up.

 

[daniboun]

Those are JST / Micro JST connectors :

Cable XH 2.54mm Femelle vers Fils Nus 1 Connecteur 3 Poles 20cm Noir (Unite) - Audiophonics

Make sure this is a JST or Micro JST.

HanZao TPA3255 is using Micro JST = see my review
The Shui Yuan is using JST = see my review

Ils - 20 pieces Mini Micro JST 2.0 PH 3Pin Connecteur Plug avec Cables Fils 30: Amazon.fr: High-tech

 

[daniboun]

But if you are looking for the best TPA3221 Module, checkout here :

DUAL MONO TPA3221 Pictures Inside