Thanks Buehgemeiste from my original post:It depends on your application.
I wanna use this as a PC setup for music what do you guys think or can I find something better in the same price range? Also where can I get a cheap case for it?
TDA7498 Dual Channel Class D 2X100W Audio Stereo Amplifier Board Component Power | eBay
For home use the TDA8932 is great for 8Ohm speakers.
This might be a nice option, too.
Aliexpress.com : Drahtlose Bluetooth 4,0 Audio Receiver Digital TDA7492P 50 Watt + 50 Watt Verstrker brett Geben Verschiffen von verlsslichen board lcd-Lieferanten auf China 3C Tech Co.,Ltd kaufen
This might be a nice option, too.
Aliexpress.com : Drahtlose Bluetooth 4,0 Audio Receiver Digital TDA7492P 50 Watt + 50 Watt Verstrker brett Geben Verschiffen von verlsslichen board lcd-Lieferanten auf China 3C Tech Co.,Ltd kaufen
He's too polite to say, but, your breath...
But maybe it is that he just doesn't have the knowledge to answer your question. If it even has an answer. I notice that there are is only one or two TDA8932 boards on ebay, and they don't have a power jack or volume control.
I don't recall seeing any issues with the (knockoff) Sanwu TDA7498 you linked to. You might look for a seller that at least includes a picture of bottom of the PCB showing the Sanwu logo. No guarantee that that's what you'll get, but your chances are probably better than buying from a listing that shows the bottom without the logo. I have a seller who has, so far, been a reliable source of genuine Sanwu boards, but they don't seem to deal in that particular one.
If you are going to use a TPA7498, make sure you have a beefy ~30-32v power supply to run it off of, otherwise you aren't going to get the power and performance you might expect.
But maybe it is that he just doesn't have the knowledge to answer your question. If it even has an answer. I notice that there are is only one or two TDA8932 boards on ebay, and they don't have a power jack or volume control.
I don't recall seeing any issues with the (knockoff) Sanwu TDA7498 you linked to. You might look for a seller that at least includes a picture of bottom of the PCB showing the Sanwu logo. No guarantee that that's what you'll get, but your chances are probably better than buying from a listing that shows the bottom without the logo. I have a seller who has, so far, been a reliable source of genuine Sanwu boards, but they don't seem to deal in that particular one.
If you are going to use a TPA7498, make sure you have a beefy ~30-32v power supply to run it off of, otherwise you aren't going to get the power and performance you might expect.
lol easp you are funny dude. Glad to see some humor on this forum! This one has the name what do ya think? TDA7498 2 100W 2 Channel Audio Stereo Digital Power Amplifier Board DC 15 34V | eBay
Seems like it is worth a shot. I think that is one of many variants of the "TopTom" seller. I don't think I've ever ordered anything from them, but I don't recall people warning to steer clear of the operation. I'll be interested to hear/see what you get.
Darn thanks easp. Can you or someone recommend a reputable seller?
I went and bought this one: TDA7498 100W 100W 2 Channel Stereo Digital Power Amplifier Board DC 15 34V P1VX | eBay I hope it's worth it. If not getting a refund. 2 weeks of torture now...
I think that comes from the same source as the previous listing you linked to, but, I think there is some confusion.
I wasn't warning you away from them. I was saying that they have been around for a while AND, I can't remember ever having heard someone say not to buy from them. In other words, no news is good news
I wasn't warning you away from them. I was saying that they have been around for a while AND, I can't remember ever having heard someone say not to buy from them. In other words, no news is good news
So 7498 good for 36V but caps rated at 35V? They state 34V max but even 2V headroom is a bit too close. How easy is it to change those electrolytics?
Is that all you should change on those boards?
The electrolytics are thru holes, so should not be difficult to remove. I have a different version of 7498 board, the caps are also 35 V . I have been running it at 24-25 V and it is loud enough for me. Because one of the output inductor's shield was broken during shipping, I decided to change all the inductors (which are thru holes). I replaced them with some Coilcraft surface mount ones - took some effort. I then measured the value original inductors that I removed. Not good, they ranged from 10-22 uH. So based on my experience, I would suggest changing the inductors.
Regards,
The electrolytics are thru holes, so should not be difficult to remove. I have a different version of 7498 board, the caps are also 35 V . I have been running it at 24-25 V and it is loud enough for me. Because one of the output inductor's shield was broken during shipping, I decided to change all the inductors (which are thru holes). I replaced them with some Coilcraft surface mount ones - took some effort. I then measured the value original inductors that I removed. Not good, they ranged from 10-22 uH. So based on my experience, I would suggest changing the inductors.
Regards,
Thanks for the great info. Do you think this will work?
https://www.amazon.com/gp/product/B01D1CM6R8/ref=ox_sc_act_title_2?ie=UTF8&psc=1&smid=A2I9LON15DRZJO
I think that comes from the same source as the previous listing you linked to, but, I think there is some confusion.
I wasn't warning you away from them. I was saying that they have been around for a while AND, I can't remember ever having heard someone say not to buy from them. In other words, no news is good news
I did understand, but wanted to know if there was one that was more dependable. Well we will see.
Thanks for the great info. Do you think this will work?
https://www.amazon.com/gp/product/B01D1CM6R8/ref=ox_sc_act_title_2?ie=UTF8&psc=1&smid=A2I9LON15DRZJO
I have not used this particular PSU, so I cannot comment. But I have used different laptop bricks for different 3116 boards and they all worked for me. I did not encounter any noise issues either. As I mentioned earlier, I am running my 7498 board with a 24 V SMPS and it worked fine. I have a voltage booster on order and would like to try this 7498 board at higher voltage (30-32 V) and see whether there is performance improvement. For regular use, I think you have enough wattage. The class D amps are efficient.
Regards,
Hi, I run a 9 amp voltage booster from 12 -32 VDC from 2x12 SLA batteries. amp sounds very good in this configuration.
Thanks! Good to know.
I have not used this particular PSU, so I cannot comment. But I have used different laptop bricks for different 3116 boards and they all worked for me. I did not encounter any noise issues either. As I mentioned earlier, I am running my 7498 board with a 24 V SMPS and it worked fine. I have a voltage booster on order and would like to try this 7498 board at higher voltage (30-32 V) and see whether there is performance improvement. For regular use, I think you have enough wattage. The class D amps are efficient.
Regards,
Thanks Lo is there a particular booster for the adapter I linked. I doubt I'd need one, but curious.
You can use any DC Voltage booster rated for that Voltage and current, this should be quiet decent:
DC Booster on Ebay
You should also put some additional 4700uf caps on the output, because you will get current spikes of 8a@34v at full load with 8ohm speakers.
DC Booster on Ebay
You should also put some additional 4700uf caps on the output, because you will get current spikes of 8a@34v at full load with 8ohm speakers.
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