SM-TPA3116 Cheap Ebay Amp Review and Gain Fix
Вставка
- Опубліковано 18 тра 2016
- Update: New version TPA3116 amp that only costs $5, review and gainfix here: • Very cheap eBay TPA311...
Also known as the SMAKN TPA3116 Amp. I review this little board which I paid $15 USD shipped from China. I'm pretty happy with it with the caveat you change the gain from 32db to 26db. It's a simple change where you just put a solder blob on the right pads as I outline in this video.
Ebay seller: worldsky2013
Ebay Title: New TPA3116 DC12-24V 50W+50W Dual-Channel Audio Speaker Digital Amplifier Board
Ebay Link: www.ebay.com/itm/331300795890 - Авто та транспорт
Hey Adrian, great video! I would love to see the process of bridging this amp and seeing the addition of the 5v regulator to power an external Bluetooth module. Would you consider this for a future video?
Thanks for the video, you are explaining slowly, witch i like :D
Subscribed :)
you can fix the knob in like 2 seconds, just pull it off and put it back on so that the arrow faces towards the bottom left when it's off
Hi, nice video ! I just got a TPA3116 board in from banggood .. and it's powering the chip up like shit; I get the full 24v in directly connected to the speakers at startup - I assume yours never does this .. ? The real question is, do you have any quick and dirty tip for this ? (I'll be digging into the datasheet and circuit layout on my board, but am looking for shortcuts on that)
Hi, I have this same amp and I was thinking about adding on/off button as it would be very convenient in my current setup. Could it really be done just by soldering switch to those SD contacts? Also, do you know if its possible to set the gain to 20db on this board with mods? Great review btw!
i like nobsound too. it really loud. that my no. 1 amp. and i used it in all of my boombox...
can this be modified to use for old logitech z906's sub? its rated 165 watts,Class D amplifier
hi, great video. thinking of using this amp, to create a wireless speaker using it with a Chromecast audio. if possible I want to add a signal sense and sleep functionality. is there a way to implement this using the SD pad? Also, could I add a regulator to supply 5v, 500ma powered USB to supply a Chromecast audio? cheers
hey i order one of those anps its the same but it says its 100 watts what type of speakers can i put on it i hope you can help me
What was the input? In the old days I think the target input to a pre-amp stage for tape decks etc. was 150 millivolts. Running the output of a headphone jack as the input would definitely overwhelm something.
what happens if I use a 30v 12va power supply I have lying around?
Someone actually tested one of these boards and they do hit their advertised wattage at like 1 or 2 ohms
Hi, which speakers are you powering using this amp? Wondering if this can power a pair of Dayton B-652's and they're rated at 40W/4 ohms. Is any amp maker honest about the power output at all...Shenzen Audio claims the SMSL SA-50/SA-60 provide 2*50W, but cost over $70.
what can I use to power this amp?
Check this regarding the "hiss":
ua-cam.com/video/16k4goWRT4o/v-deo.html
Also, I wonder if the Volume POT is Linear taper... and just too high of a resistance.
The link on ebay says its 180$, typo or what? How do i order it haha
Love. I am getting one!
Try 220 output filter coil instead of 150 onboard
any conclusion on bass quality and can work for 2x50w sony xplod car speaker?
In case mu drivers are 4ohms, then should I use any resistor to have bigger impedance?
Lower the gain and replace the pots. Does it for most of these cheap amps.
Frequency response?
i will try that amp. can u test the volt out? if it is 5volts or 3.3? i want to hook a bluetooth module. anyways. thanks for the video...
The voltage out is not connected, You provide the voltage regulator, and it can be any voltage you want(as long as it is 1v lower than the supply voltage or more, of course). You could probably bridge it to use it as a passthrough as well.
Btw, the current the voltage out can provide goes DOWN when you give it more voltage, since it's a linear voltage regulator. The more voltage drop, the more heat. Worth knowing.
i like your video verry informative
Can you pull the potenciometer in an extension so you can place it somewhere else away from the board?
Thank you!
This is my plan. I am currently building a 2.1 soundbox with this exact board and another TPA3116 mono board for the sub. I'm leaving the gain knob on the other mono board for independent sub level adjustment, and removing the gain knob on this board and sticking it on the input line (feeds both) which will be master volume.
What's the average current draw on 24V at max volume? I need the info because maybe i buy it to run off batteries.
check the chip data sheet and then look at the rating on the electro caps . they should be rated at 35 volts . i use two sla cells on any amp that the caps are rated at 35 as long as the chip can handle it . unfortunately the specs and info on ebay details are not the best incorrect .
I want to do the same thing using TWO 12.6 v AGM lead acid batteries
used from my my stair lift. I'm thinking of building an extension speaker
cabinet for my Fender Champ 40 guitar amp.
The speaker will be 8 ohms. Trying to figure out if this amp can be
configured for mono operation. I'll have to look at the data sheet for
the bridged mono mode.
As far as the 25-26 volt no load voltage, it will drop down to 24 volts
as soon as you start putting a load on it. However the 3 volt rating
on the capacitors is a bit skimpy, they should have at least 50 vdc
working voltage rating.
its not way too much for this or any of the 100 watt rated class d amps as i have run all of them with dual 12 volt sla batteries for extended ( 8 to ten hours straight ) runs . yes i use a fuse , a low value for the app , and yes i check the voltages which are not 29 volts typically 26 . the boards caps are rated at 35 volts , check the data sheet for what the chip is actually rated for . doing this is just the simplest method it isnt the case that i wish to puch the amp to the edge of its spec . ideally the 20 percent rule is what SOME people mention with class d amps , running them with 20 percent less of their max rated power , with the input signal @ less than 80 percent of its max and same goes for the output if that makes sense . the only reason i am chiming in is because yes , i have run these at 26 volts , the 3116 the 3118 the 7492 and their is video on my channel of us making music in the woods using these amps going back 5 years . we have never had an issue , never cooked or blown an amp . we blew one fuse in five years . one amp boartd was cooked due to operator error but these are generally robust . keep in mind i typically go for the higher quality units and most often the sure boards and i have not tried the board on this video but what i look for is the voltage rating on the caps off the bat . great channel Adrian .
How is the Breezesound spelled? I couldn't find it anywhere.
I'm gonna go with two of these, they plug right into each other and have the power plug.
what lepy amp where you using before and what breeze amp were you referring to thinking about getting?
i can do bridge in this amp ?
The board features a single TPA3116 chip which is already bridged (the chip could have two outputs)
the hiss is most likely the potentiometer and not the gain like in this vid here ua-cam.com/video/16k4goWRT4o/v-deo.html
3116 chips have "Mute" and "StandBy" pins.
Not "Shutdown".
Hello. I use an amplifier with the same TPA3116 chip. you must have a resistor over the sound input or else you will get a lot of his! That's how the chip is made. If you have volume at full then there is less resistance over the sound input and you get his. 2kohm to 5 kohm should work. ebay numbers 392534139021 and 133233176890
I have not his. If you put your hearing next to the speaker you will hear something but not much but the are common for class d.
This chip has little noise
Do a little more searching on EBay and you'll find some at a third of the price. Not too sure on the build quality when the heatsink on some are very small.
the D on class D, doesnt meant Digital.
That link wants $200.00USD What a Joke!