Hi Shirly, welcome. You just joined. Quality is not secondary here. At least that is my experience.
For those amount you sure can built something. But you failed to say if it should contain the box or just board with parts. Many kits come as such, not even trafo. Each can decide how much to spend on the box. Box can be the most expensive part. Depending on the box, many times the budget you specified.
Otherwise it would help to know the wattage you are looking for, purpose, like quiet computer listening, or loud home theater, or disco (not likely)...
Anyway, good luck, diy is fun.
For those amount you sure can built something. But you failed to say if it should contain the box or just board with parts. Many kits come as such, not even trafo. Each can decide how much to spend on the box. Box can be the most expensive part. Depending on the box, many times the budget you specified.
Otherwise it would help to know the wattage you are looking for, purpose, like quiet computer listening, or loud home theater, or disco (not likely)...
Anyway, good luck, diy is fun.
Unless you absolutely must build it, this is hard to beat. Needs a separate power supply.
Mini Class D Power Amplifier HiFi Stereo 2.0 Channel Digital Audio Amp 50W+50W 843355444460 | eBay
Hi Rayma,
Thank you for the reply. do you think it will drive 4 ceiling Morel GH22Q Speakers.
Thank you 🙂
Thank you for the reply. do you think it will drive 4 ceiling Morel GH22Q Speakers.
Thank you 🙂
If you're looking for bang-for-the-buck in classD finished product, this one has to be unbeatable, approx $12.50 : 淘宝网 - 淘！我喜欢
I have one to try but haven't powered it up yet as no PSU supplied.
I have one to try but haven't powered it up yet as no PSU supplied.
Those are 6 ohm speakers, and the class D amp does not specify a load impedance.
If it can drive 6 ohms, just hook up those speakers in series-parallel so that
the combined impedance is still 6 ohms.
If this amp won't work, there are lots more similar amps that will.
Found it on taobao for $6.50, but it looks like I'd have to move to China to get it?
新生代 HiFi 80WX2 超低失真数字功放 MA12070 大功率远超TPA3116
新生代 HiFi 80WX2 超低失真数字功放 MA12070 大功率远超TPA3116
Hard to believe that price - Taobao agents are plentiful to arrange ordering and shipping to addresses outside China.
IMHO get yourself an amp based on the TPA3255 chip (or 3251) and not the inferior 3116.
Amplifier - AIYIMA A07 - TPA3255 | 2.0 Channel | 300Wx2 | HiFi Amplifi
Aiyima does a decent implementation of the TPA3255 and has been tested on ASR.
Amplifier - AIYIMA A07 - TPA3255 | 2.0 Channel | 300Wx2 | HiFi Amplifi
Aiyima does a decent implementation of the TPA3255 and has been tested on ASR.
I suspect he made a mistake composing that page and he is one and the same as this seller : 淘宝网 - 淘！我喜欢
The price of the PSU (27.86) is what he's showing as the amp's price.
<edit> I've had a chance to power up this MA12070 amp and for the money its not bad. Not bad at all. I have found it can be improved fairly simply too, the input opamps are a pair of TL072 which are rather high noise for the job. I have swapped them for OPA1642s and re-jigged the input circuit a little and its improved the clarity.
Last edited:
I have and use the TI EVM TPA3255 and have the Sunbuck TPA3221 arriving in a few days. Only $20!
Attachments
Last edited:
btw, why is everybody using the Sunbock TPA3221s nowadays? Are the Shui Yuan TPA3221s no longer considered good?
Ok, got my Sunbuck TPA3221 (from the AliExpress "Sunbuck Store" for $18) and it is not the same as the Shui Yuan. They use SY pictures in the listing, as well as their own version which uses SMD electrolytic input caps instead of film. I received the SMD input cap version. Very similiar, but not the same, and the Sunbuck's tiny 1uF smd caps make it more difficult to change input caps, though they are very likely genuine Rubycon YXF on the output side, which is nice, but I was
going to change these anyway to ZLH or FC. Heat sink looks very nice, better than the SY board, more fins. This board came in a well protected small box instead of a padded white envelope, which is a plus, and quite quickly to the US ordered on November 5 and received November 19.
going to change these anyway to ZLH or FC. Heat sink looks very nice, better than the SY board, more fins. This board came in a well protected small box instead of a padded white envelope, which is a plus, and quite quickly to the US ordered on November 5 and received November 19.
Attachments
Last edited:
