Something simple is the common stereo amplifier boards.
usually 2x 5 watt channels.
All designed to run off 3.6 volt USB
[/url]
I'd aim at something more swinging 😱 🙂
OK for the stereo but - boooo! to 'common', I mean, a little Diy...
Stereo is more intriguing than mono, as a 3way is more interesting than a two way (and discerning ears would find the horns a better way to do the job) ...
An old 3 way, say a Sansui/Kenwood with a 12-15"🙄 that weights a lot isn't to be preferred to a BT boombox
See another thread focused on perception of THD

I cant read the model number on the Technics, so I dont know their efficiensy, are they local so you can pick Them up to avoid postage ? I would bid him 10 pounds, but I dont know if its possible to bid on eBay. They wont play much bass but. In combination with a woofer and a 2.1 bluetooth Amp. You would be in business. Just build it All into a Common cabinet. About the woofer, Im 100% sure someone will donate you one if you ask on a lokal UK speakerbuildinggroup on facebook. Just remember to tell where you live. I have a few lonely woofers you could have but i live in Denmark as you can see. So it wont happen 🙂 Hey! Make a thread in swap meget section. "Willing to adopt single woofer Birmingham (or where you live)" 😀 Actually Im sure people Will happily donate drivers for a mono 3way. Most of us have too Many lonely drivers waiting for a partner. I also support going to charity shops as Indianajo mentioned.
Cheers!
Cheers!
Last edited:
I swear I posted something here much earlier that summed up most of what’s been said.
Oh well, it will remain a mystery…
Just be sure to not operate a class D amp with open/unloaded channels, as they can easily self destruct without a load.
Oh well, it will remain a mystery…
Just be sure to not operate a class D amp with open/unloaded channels, as they can easily self destruct without a load.
I hate when that happens 😁 Alway when Its a Long post.I swear I posted something here much earlier that summed.....
Cheers!
I have a couple of those Bluetooth TPA3116 amps that you had shown the link to, they work great…
Hi guys, so an update
I was watching like 10 speakers on ebay and I had only resarched few of them because I didn't have the time to look them all up. Had a busy day at work and went to the gym, and one of them poped out on my phone with few minutes left on auction and I paniced and bought them 😕
Please dont laugh ill post the link now.
I did the research afterwards and was dissapointed. However they might be working and might be good, not great, not excellent , just okay.
Considering the price i
I think its okay, It could have been worse, I paid for mine only £55, not this price.
Anyways has anyone ever seen these before and do you maybe know whats inside, coz I cant't find the specs anywhere 🙁
Do you know what amp could I use for these?
Heres the link
Acoustic Reference SM-1000 3 Way Speakers Black High End Very good condition | eBay
Btw I never new there were scams with speakers and counterfeit speakers.
I was watching like 10 speakers on ebay and I had only resarched few of them because I didn't have the time to look them all up. Had a busy day at work and went to the gym, and one of them poped out on my phone with few minutes left on auction and I paniced and bought them 😕
Please dont laugh ill post the link now.
I did the research afterwards and was dissapointed. However they might be working and might be good, not great, not excellent , just okay.
Considering the price i
I think its okay, It could have been worse, I paid for mine only £55, not this price.
Anyways has anyone ever seen these before and do you maybe know whats inside, coz I cant't find the specs anywhere 🙁
Do you know what amp could I use for these?
Heres the link
Acoustic Reference SM-1000 3 Way Speakers Black High End Very good condition | eBay
Btw I never new there were scams with speakers and counterfeit speakers.
I dont know them, but they look like the "Not great" category, but for you'r project they may be great with some modifications.
You need to open them up and dismantle to see if they have a proper crossover. If you are lucky the drivers will be marked with a model number so you can look Up their specifications, so that a new kabinet can be calculated.
If I understand corectly, you want to build a portable monospeaker from it right? You can probably reuse the wood.
Cheers!
You need to open them up and dismantle to see if they have a proper crossover. If you are lucky the drivers will be marked with a model number so you can look Up their specifications, so that a new kabinet can be calculated.
If I understand corectly, you want to build a portable monospeaker from it right? You can probably reuse the wood.
Cheers!
Can likely use them to earn about the various ways to modify the sound response by changing capacitor values, stuffing, port length/size, etc., would hope that they would at least play ok at lower volumes anyways.
Not a total waste at that price, but yeah, this hobby is all about researching things, and less impulsive activity I’ve learned. If you are patient, free gear does show up on local sale platforms, some of it can be decent.
That dual tpa3116 amp would be a good cost effective way to go, just get a decent higher powered 19v supply for it, some 16awg lamp cord for speaker cables.
I was just describing some speakers on another thread that I made without much research or planning some twenty years ago, cost me much more than that, so don’t feel bad!
Not a total waste at that price, but yeah, this hobby is all about researching things, and less impulsive activity I’ve learned. If you are patient, free gear does show up on local sale platforms, some of it can be decent.
That dual tpa3116 amp would be a good cost effective way to go, just get a decent higher powered 19v supply for it, some 16awg lamp cord for speaker cables.
I was just describing some speakers on another thread that I made without much research or planning some twenty years ago, cost me much more than that, so don’t feel bad!
You can use one side and short the input to the other.Can the dual tpa run mono? Cheers!
But you can't run most amps in parallel or series to double the watts. Ones that you can have a 'bridge' function. Digital amps I've read are damaged by open circuit load. So the unused portion of a stereo Digital amp would have to be loaded with an 8 ohm resistor of suitable wattage.
Ok, so you have some speakers now. At least someone else thinks they sound great. Hope you will be happy too. See this post:Anyways has anyone ever seen these before and do you maybe know whats inside, coz I cant't find the specs anywhere 🙁
Do you know what amp could I use for these?
Acoustic reference SM-1000 Price? | AVForums
Now to find an amp. But the question remains – do you want to run both speaker boxes (stereo) or only one speaker box (mono)? If stereo then you have too many options, but the one in your first post will work. If mono there are also options like this TPA3116 Mono amp:
AIYIMA Bluetooth 5.0 Power Amplifier Board 100W TPA3116 Sound Amplificador AUX Mono Audio Amp Support Serial Port Rename TWS|Amplifier| - AliExpress
Hope it helps.
Bluetooth 5 is nice since it uses less battery than older versions. 5.2 event nicer since it is "hi def"
Cheers!
Cheers!
Ok, so you have some speakers now. At least someone else thinks they sound great. Hope you will be happy too. See this post:
Acoustic reference SM-1000 Price? | AVForums
Now to find an amp. But the question remains – do you want to run both speaker boxes (stereo) or only one speaker box (mono)? If stereo then you have too many options, but the one in your first post will work. If mono there are also options like this TPA3116 Mono amp:
AIYIMA Bluetooth 5.0 Power Amplifier Board 100W TPA3116 Sound Amplificador AUX Mono Audio Amp Support Serial Port Rename TWS|Amplifier| - AliExpress
Hope it helps.
Hi, I just had a look at that amp and altho it says mono in the title when you look at the specs it says 2x50
Confused now
Sorry correction it says per channel amd then on the pic explanation I Guess on how to connect it for 2 channels as well. Will this work just as a single channel? Oh and btw where can i find button or a panel for it, so I can put potentiometer etc on it...
And guys thank you all very much for your help and guidance with this, much appreciated.
And guys thank you all very much for your help and guidance with this, much appreciated.
Ok, now that you have a speaker and looking for the rest - Bluetooth mono amplifier and battery, you are probably in the wrong forum section again for solutions. Best is to start a totally new thread under the Amplifiers -> Class D section.
The mono amp I linked to might not be so great for your purpose. As you've asked – how to implement a potentiometer volume control? I don’t know for that board. You might have to look for mono amplifier boards with a volume control already installed on the board. In the end you will have two ways to control the volume - a potentiometer on the amp and the volume control on your phone via Bluetooth.
As for running the amp off a battery and re-charging the battery – unfortunately I cannot help you there.
The mono amp I linked to might not be so great for your purpose. As you've asked – how to implement a potentiometer volume control? I don’t know for that board. You might have to look for mono amplifier boards with a volume control already installed on the board. In the end you will have two ways to control the volume - a potentiometer on the amp and the volume control on your phone via Bluetooth.
As for running the amp off a battery and re-charging the battery – unfortunately I cannot help you there.
- Home
- Loudspeakers
- Multi-Way
- 3 way speaker first time build