TDA8932 amp

[potul]

Hi folks

does anyone have any experience with these?
Are they any good?

http://www.ebay.com/itm/Digital-Amplifier-Board-Module-35W-Mono-Power-amp-Low-Power-TDA8932-12v-24v-car-/331591959628?



For the price, I just grabbed a couple of them. We'll see how they perform...

Mat

[TejfolvonDanone]

I know this won't help but i "love" how people call class D amps "digital" amps. It's like calling a BBD chip a digital chip...

[bluebunny]

I know this won't help but i "love" how people call class D amps "digital" amps. It's like calling a BBD chip a digital chip...

I would raise my middle finger to such people.  That's a "digital sign", btw...   

[TejfolvonDanone]

I know this won't help but i "love" how people call class D amps "digital" amps. It's like calling a BBD chip a digital chip...

I would raise my middle finger to such people.  That's a "digital sign", btw...   

That means four. I just never get why people say "4" to each other.*


But not to run really away from the topic as i could tell it is a class D amplifier chip with factory example circuit. It can't be that bad.



*https://en.wikipedia.org/wiki/Finger_binary

[J0K3RX]

Hi folks

does anyone have any experience with these?
Are they any good?

http://www.ebay.com/itm/Digital-Amplifier-Board-Module-35W-Mono-Power-amp-Low-Power-TDA8932-12v-24v-car-/331591959628?



For the price, I just grabbed a couple of them. We'll see how they perform...

Mat

Glad you posted a link to that, I'ma get me a couple of those! I can think of a lot of cool things to do with'em!

To people who say bahhh to these little chip amps... I guess ignorance is bliss
This little HoTone Heart Attack nano head has a TDA2003 for the power amp. I purchased one of these new for $100 and I have to say I am impressed as hell with it!! Check out all the youtube videos, you'll be hard pressed to find any that sound bad..

At the same time I am also kinda put off on making pedals, preamps etc... why you may ask? Because, it's really hard to top this especially for only $100... if only for myself that's fine cause I love messin with this stuff and selling a few here and there but, I'm glad that I don't rely on making these things for my main source of income!

[GiovannyS10]

Seems the TDA2003 have a good sound for the price. The Hotone make good things to too little pedals. Haha

[PRR]

> say bahhh to these little chip amps...  has a TDA2003 for the power amp.

Not all chips the same.

The TDA2003 is an *analog* car-sound chip, and developed to be not-too-nasty when over-driven.

TDA8932 (any chip which needs ferrite cores) is a *digital* (really PWM) amplifier and overloads very differently. It also has much better efficiency, especially at less-than-max output (better battery life!) and is tending to be cheaper because heat is almost a non-issue.

[potul]

Yep

they are much more efficient. Almost no heat is dissipated..
I tried it today and it worked pretty well if you stay in the clean area.
I need to test it with a bigger speaker,.. as the one I used is rated for only 3w, so I suspect some of the distortion was coming from the speaker itsef...
But it looks promising

Mat

[Renegadrian]

bought one, waiting for it...

[deadastronaut]

just bought one too....

looks better than my tda3030a that ive been messing with.

for 2 quid its worth a test...

[blackieNYC]

Class D Amplifiers
http://electronics.mcmelectronics.com/search?w=Class%20D%20Amplifier

[Renegadrian]

Usually TDAs require some heatsinking of sort, those new chips Are less keen to overheat, As far as I read...So I'm eager to receive it and to try it!!! 30W!!! Want to try something like the stompamp (italian product, 349 euros)

[tca]

> Does anyone have any experience with these? Are they any good?

Yes and yes.

[potul]

Great!

I'm planning to build a new 20-30 W amp, I will give it a try, and probably add some preamp to it, ROG style.

Mat

[tca]

> just bought one too

I've bought 10.

Honest amp, flat colorless sound, linear response, runs at low temperature and does what it promises...

But I keep returning to much simpler designs;)

Cheers.

[deadastronaut]

@tca:

what power supply are you using with it?.

[stringsthings]

To people who say bahhh to these little chip amps... I guess ignorance is bliss
This little HoTone Heart Attack nano head has a TDA2003 for the power amp. I purchased one of these new for $100 and I have to say I am impressed as hell with it!! Check out all the youtube videos, you'll be hard pressed to find any that sound bad..

Just checked out some Hotone videos.  Very impressed !

[tca]

> what power supply are you using with it?.

A 19V 6A laptop power source.

[potul]

@tca

are you using any kind of heatsink with it?

I tried the one I have wihtout any heatsink, and it was running really cold. But I didn't push it much, I must admit

[tca]

> are you using any kind of heatsink with it?

No heatsink... but I use it for regular audio (5W tops), not guitar.