It might work, but they are not made for 4Ohm loads.
But there is a 4Ohm version of the chip called TDA7498E.
I have yet to try it.
I'm tempted to buy this one:
https://de.aliexpress.com/item/TDA7..._1&btsid=5e194512-08dc-442f-81ab-553df8d264a0
hmm cool finding, is the 4 ohm output tied directly to a specific input voltage use? I mean does the power source have to be 36V or even 24v would do just fine?
TPA3118D2 in a Gainclone case
Hallo everybody,
here is my case for TPA3118D2 amps, built using a couple of tin candy cans.
More information on “The reverse GainClone” thread ( http://www.diyaudio.com/forums/chip-amps/297538-my-reverse-gainclone-idea-gaincard-like-case.html ) in Chip Amp Forum.
Ciao.
Luca
Hallo everybody,
here is my case for TPA3118D2 amps, built using a couple of tin candy cans.
More information on “The reverse GainClone” thread ( http://www.diyaudio.com/forums/chip-amps/297538-my-reverse-gainclone-idea-gaincard-like-case.html ) in Chip Amp Forum.
Ciao.
Luca
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Use any well known search engine 😉
"IKEA BLANDA SPEAKERS"
https://www.google.co.uk/search?q=i...X&ved=0ahUKEwjq2r_RmtPPAhVFPRoKHfInAX8QsAQIGw
Thanks a lot Ryk,
more information here, at home: http://www.diyaudio.com/forums/full...imple-cheap-high-waf-full-range-speakers.html
Ciao,
Luca
I just found the strangest thing with my dual chip red board. I ran it with XY 6N3 tube pre amp, with the power amp at full volume, and the tube pre being the volume control. Power amp full volume, and player is at 80% volume, the tube pre at 40% is just nice in my small room, but when I turn it louder, the sound becomes bloomy and dull. I think to myself, 3116 should play louder and cleaner than this. Out of curiosity I connect the player directly to the amp, and it was so different! It plays louder, cleaner, more authority. More detail came into play, at the expense of slightly thinner vocals. It's as if the tube pre (or should I say buffer) is limiting and 'dulling' the sound. Could be impedance matching between the two, could be my system (speaker, player, etc) or maybe you guys have any thoughts on this? But I can say I'm surprised and pretty happy with this result.
Is this normal? When i disconnect power source, speakers make a short noise, like if you connect a battery directly into the speakers terminals, which is annoying and maybe bad for speakers.
Could be.
What's the output impedance of the pre-amp? What is the size of the input coupling capacitors on the amp? What gain is chip on the amp set to?
These factors influence whether you have an unintended PLLXO (passive line level cross over) filter in play in the audio freq. range.
You don't need to have doubts. The chinese "buffers" take every, every opportunity to change the signal.
I bought board that promises 100 watts power, how much power do they put out?
My bass shakers need 35 watts each and I have 2 of them.
My bass shakers need 35 watts each and I have 2 of them.
Attachments
If they have a 100W+ power supply they will put out 100W under normal circumstances you wouldn't want to listen to those 100W, because of distortion , but since this is for bass shakers it's full steam (smoke?) ahead.
Sorry, I really can't answer the first two questions 🙁
This is dual chip red board, gain is 26dB, all stock condition.
It sounded nice when I paired it with my 7297 lunch money amp, so I didn't really think about it when I received my 3116 board.
5V 12V 24V Voltage Regulated Switch Power Supply LED Driver Transformer for LED | eBay
I think of using this for power. 24v/5A for under 15$?
That whould make 70 watts per channel into 4 ohms with tpa3116
I think of using this for power. 24v/5A for under 15$?
That whould make 70 watts per channel into 4 ohms with tpa3116
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Since your talking about bass speakers, where most of the sound energy is, I would recommend a stronger power supply. At least if you want to push them hard.
Not familiar with bass shakers ... I agree with your point on the low frequency. But the "nominal" rms watt ratings are for a sine wave. Music is never as dense. Perhaps just some added PS bypass caps near the amps PS input would suffice (or replace using caps with higher values if you can find them in the same can diameter but taller. Also, if the existing PS caps are rated 25v on the amp, I'd replace them with 35v caps when using the 24v PS.