What are the options for a 2 or 2.1 channel amplifiers with Bluetooth and possibly line out.
Looking to make super portable and good sounding system consisting of 2 bookshelf speakers(one will have the amp bolted onto it)
It will be like a Lego transformer. Mostly use the 2 speakers attached next to each other but sometimes would want to separate them when need true stereo.
The system needs to be battery powered. 12-19v I would guess
I might add a downfiring subwoofer in a form of a base for the two speakers.
Ideally I would like 2.1 amp that can power small bookshelves + 6.5 or 8" subwoofer. If its not possible have a 2 channel system with a subwoofer out .
I've seen some options on parts-express 50+50+100w amps.
Are there any other options to consider outside parts express.
Plus need a battery. Could I use Ryobi 18v 6ah battery that comes with their tools?
Looking to make super portable and good sounding system consisting of 2 bookshelf speakers(one will have the amp bolted onto it)
It will be like a Lego transformer. Mostly use the 2 speakers attached next to each other but sometimes would want to separate them when need true stereo.
The system needs to be battery powered. 12-19v I would guess
I might add a downfiring subwoofer in a form of a base for the two speakers.
Ideally I would like 2.1 amp that can power small bookshelves + 6.5 or 8" subwoofer. If its not possible have a 2 channel system with a subwoofer out .
I've seen some options on parts-express 50+50+100w amps.
Are there any other options to consider outside parts express.
Plus need a battery. Could I use Ryobi 18v 6ah battery that comes with their tools?
I am thinking this one. How much play time will it give me on 6aH Ryobi 18v battery with paradigm atom v6 + 6.5" subwoofer
At moderate levels
https://www.parts-express.com/TPA31...h-FM-AUX-In-and-USB-Media-Player-IR-R-320-622
At moderate levels
https://www.parts-express.com/TPA31...h-FM-AUX-In-and-USB-Media-Player-IR-R-320-622
Having used a number of their modules, I can fully recommend Tinysine products. They have a full range of amplifiers with BT input, such as:
https://www.tinyosshop.com/tinysine-aptx-bluetooth-audio-amplifier-boards/tsa7492b
https://www.tinyosshop.com/tinysine-aptx-bluetooth-audio-amplifier-boards/tsa7800b
Their boards are well made, reasonably priced, documented and their support is superb.
https://www.tinyosshop.com/tinysine-aptx-bluetooth-audio-amplifier-boards/tsa7492b
https://www.tinyosshop.com/tinysine-aptx-bluetooth-audio-amplifier-boards/tsa7800b
Their boards are well made, reasonably priced, documented and their support is superb.
Look for 2030 or 4440 amps with BT...
2030 based 2.0 and 2.1 populated PCB are common.
2030A will run at 18-24 v...+/- 9 to 12.
4440 are best at 12V.
Add transformer, case and a FM module, ready to go.
The FM has memory card, USB stick, and Bluetooth. And aux in.
4440 amps with only battery - 12V - are unbelievably cheap here, less than a pack of cigarettes in the UK.
2030 based 2.1 module, with Chinese chips, is less than 3 GBP.
Have fun, connection takes less than 15 minutes, assembling in case takes a bit longer.
2030 based 2.0 and 2.1 populated PCB are common.
2030A will run at 18-24 v...+/- 9 to 12.
4440 are best at 12V.
Add transformer, case and a FM module, ready to go.
The FM has memory card, USB stick, and Bluetooth. And aux in.
4440 amps with only battery - 12V - are unbelievably cheap here, less than a pack of cigarettes in the UK.
2030 based 2.1 module, with Chinese chips, is less than 3 GBP.
Have fun, connection takes less than 15 minutes, assembling in case takes a bit longer.
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Very interesting.
Tinyshop stuff looks promising but I am a bit worried about the fan. The amp will be in a sealed enclosure.
I am leaning to converting some old 3 way speakers into small enclosures(around 20L). Using just 2 way amp.
Infinity n38ii(which I got for free and haven't listened to them yet)
https://www.hifiengine.com/manual_library/jbl/n38.shtml
Or Boston acoustics t830(had them before and they sounded pretty decent) can be found super cheap. 50-150$
https://reverb.com/item/33960771-bo...anding-tower-speakers-new-surrounds-near-mint
So the amp boards are sold as just amps. I assume I need to buy some sort of pre amp modules with volume controls and etc. Would be good to have one with dsp in case the woofer response will exhibit some midrange peak when put in a significantly smaller box
Tinyshop stuff looks promising but I am a bit worried about the fan. The amp will be in a sealed enclosure.
I am leaning to converting some old 3 way speakers into small enclosures(around 20L). Using just 2 way amp.
Infinity n38ii(which I got for free and haven't listened to them yet)
https://www.hifiengine.com/manual_library/jbl/n38.shtml
Or Boston acoustics t830(had them before and they sounded pretty decent) can be found super cheap. 50-150$
https://reverb.com/item/33960771-bo...anding-tower-speakers-new-surrounds-near-mint
So the amp boards are sold as just amps. I assume I need to buy some sort of pre amp modules with volume controls and etc. Would be good to have one with dsp in case the woofer response will exhibit some midrange peak when put in a significantly smaller box
Could not locate 2030 , 2030a amps.. I saw some transistor pairs sold when googling those amps. Could u provide a link. I am ok with wasting 80$ or so on a decent amp. Preferably 50-100 watts.
So far these are my options
https://www.tinyosshop.com/tinysine...tereo-audio-amplifier-board-tsa3118b-tws-aptx
https://www.tinyosshop.com/tinysine-aptx-bluetooth-audio-amplifier-boards/tsa7498b
Did anyone try replacing fan with some passive cooling solution? Like a big aluminum plate facing outside the speaker enclosure?
So far these are my options
https://www.tinyosshop.com/tinysine...tereo-audio-amplifier-board-tsa3118b-tws-aptx
https://www.tinyosshop.com/tinysine-aptx-bluetooth-audio-amplifier-boards/tsa7498b
Did anyone try replacing fan with some passive cooling solution? Like a big aluminum plate facing outside the speaker enclosure?
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What fan?
There are some heat sinks, but I don't think you'll have heat issues running off a 19v power tool battery.
Some tiny shop amplifiers have a heat sink and a smart fan that is supposed to kick in if temps go over 65 degrees. Because the amp will be in enclosed 20L box I am worried about heat accumulation.
I'll have a left and a right speakers. Each in 20L sealed enclosure.
I attached a pic of fan on amp. 100w x 2 preferable amp
I'll have a left and a right speakers. Each in 20L sealed enclosure.
I attached a pic of fan on amp. 100w x 2 preferable amp
Attachments
I don't blast music loud. ) But usually prefer to make things with lots of headroom for potential heat issues or someone else blasting loud music now and then
Look for Class D amp modules also...
Unless you really need to, use a separate amp, not an active speaker.
Unless you really need to, use a separate amp, not an active speaker.
Is there a chart of temperature and power. How hot the amp gets during a particular temp. Maybe it won't really reach 65c that often
Want to avoid a separate amp module
The idea is to have less junk to carry around..wiring and all that. I saw that thread about tws amplifiers. True wireless stereo. Where each speaker has a separate Bluetooth amp. But it looks like there are still bunch of unresolved issues with those diys.
The idea is to have less junk to carry around..wiring and all that. I saw that thread about tws amplifiers. True wireless stereo. Where each speaker has a separate Bluetooth amp. But it looks like there are still bunch of unresolved issues with those diys.
If you want to be able to carry them to different places, 'party speakers' are the way to go.
Some have battery built in, and FM / BT / USB capability.
Look them up.
Some have battery built in, and FM / BT / USB capability.
Look them up.
I had some. Harman kardon egg like onyx studio 3..they are pretty good. Impressive if u can find them for free or under 40$. MSRP is 450-500$. But very inflated bass on most of them. I understand market demands bass and manufacturers make subwoofers with tweeters. I want something that sounds decent. And cheap.for example I put Cambridge soundworks m60 drivers and tweeters+cross overs in my car. Sounds 100 times better than 1000$ hertz speakers. Same thing with portable. If u make your own things can be impressively amazing at a fraction of a cost
So make your own party speakers, or portable powered speakers.
No idea if short rang FM is allowed in your country, signal transmission quality can be good.
Can use FM to send sound data.
No idea if short rang FM is allowed in your country, signal transmission quality can be good.
Can use FM to send sound data.
interested in tws option in these amps.
just wanted to learn more about them
is it possible to adjust tremble and bass on all of them or only those with dsp option
if i were to make a completely wireless set up do i need to order two amplifiers one for each speaker. or get one regular and the other in mono option. or get two identical and just use left and right channel of each amp.
basically would like to have battery powered speakers with no wires anywhere
only to charge them once in a while.
for example i am looking at this amplifier
https://www.tinyosshop.com/tinysine-aptx-bluetooth-audio-amplifier-boards/tsa9840b
Lets forget about tws or separate amplifiers in each speaker.
Have questions about bass and treble adjustments
Tinyshop only provides volume knob it looks like. Is there anyway to adjust bass and trembles on dsp enabled tinyshop amps? Maybe through an app? Or only connect to a PC and adjust through pc
Have questions about bass and treble adjustments
Tinyshop only provides volume knob it looks like. Is there anyway to adjust bass and trembles on dsp enabled tinyshop amps? Maybe through an app? Or only connect to a PC and adjust through pc
You could probably take it out of the chassis
AIYIMA A03 2.1 Channel TPA3116 Subwoofer Bluetooth Amp HiFi Power Amplifier DC12-24V 50W x 2 + 100W (A03 Black+DC 24V Adapter)
AIYIMA A03 2.1 Channel TPA3116 Subwoofer Bluetooth Amp HiFi Power Amplifier DC12-24V 50W x 2 + 100W (A03 Black+DC 24V Adapter)
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I found this interesting amp. Is there anything subpar to tinyshop.
It doesn't seem to have aptx. My phone has aptx.
But seems like aptx missing is not a big deal if you have Bluetooth 5.0
https://www.amazon.com/XY-S100H-Cha...cphy=9004365&hvtargid=pla-1716849037588&psc=1
I like that it has line level out..to run another sub or system. Has any one seen this board used by other brands? Any issues or problems with these?
It doesn't seem to have aptx. My phone has aptx.
But seems like aptx missing is not a big deal if you have Bluetooth 5.0
https://www.amazon.com/XY-S100H-Cha...cphy=9004365&hvtargid=pla-1716849037588&psc=1
I like that it has line level out..to run another sub or system. Has any one seen this board used by other brands? Any issues or problems with these?
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those speakers don't look very portable...
I think Dayton b652 get good marks, I have no first hand experience. partsexpress.com may even have an off the shelf solution for you.