Hello fellow DIYers !
I am planning to make a 2.1 Bluetooth speaker system for my study-room. I have a spare pair of tweeters from a crushed maseratti, and I think those will do great for the mids and low. I'm not sure what woofer I'll use yet, but it will be a 8-10", nothing fancy, just something to help in the lower freq.
Now regarding the amp... I knew almost nothing about the class D amps, but I took some time to find out more, and it seems to me the more I read, the more complicated everything gets, and that's why I need some help.
I'm planning to use one of the Sure amps, even though I understand they are not the best, but I don't think I'll be able to tell the difference with my setup. I'm planning to use this model, and use 2 outputs for the speakers, one for the filter and sub woofer, and leave the 4th one empty. I know it will not output 100W on each channel, because I'm planning to use 8ohm speakers and 24V for power supply, which will also keep the amp from overheating, but it's gonna be more than enough for my needs.
I'm pretty sure this is not the best setup for the money, and I would appreciate your advice.
Thank you !
Cheers!
I am planning to make a 2.1 Bluetooth speaker system for my study-room. I have a spare pair of tweeters from a crushed maseratti, and I think those will do great for the mids and low. I'm not sure what woofer I'll use yet, but it will be a 8-10", nothing fancy, just something to help in the lower freq.
Now regarding the amp... I knew almost nothing about the class D amps, but I took some time to find out more, and it seems to me the more I read, the more complicated everything gets, and that's why I need some help.
I'm planning to use one of the Sure amps, even though I understand they are not the best, but I don't think I'll be able to tell the difference with my setup. I'm planning to use this model, and use 2 outputs for the speakers, one for the filter and sub woofer, and leave the 4th one empty. I know it will not output 100W on each channel, because I'm planning to use 8ohm speakers and 24V for power supply, which will also keep the amp from overheating, but it's gonna be more than enough for my needs.
I'm pretty sure this is not the best setup for the money, and I would appreciate your advice.
Thank you !
Cheers!
How do you plan on handling x-over function? With the mids/highs it will need to be passive; mids/lows can be active or passive.
For the sub I would get a DVC so you can take advantage of both outputs of the amp. I wouldn't worry about the board overheating; it has a fan.
Another option is one of the many TPA3116 2.1 boards. You can get one already in a case and with or without Bluetooth for less than the Sure board. The only problem is that none of them mention what the crossover frequency is set at.
For the sub I would get a DVC so you can take advantage of both outputs of the amp. I wouldn't worry about the board overheating; it has a fan.
Another option is one of the many TPA3116 2.1 boards. You can get one already in a case and with or without Bluetooth for less than the Sure board. The only problem is that none of them mention what the crossover frequency is set at.
This circuit is designed of my own, uses common devices and is capable of about 8W into 4Ω loads, I'm using it inside the PC cabinet powered from ATX power supply. It is also, low cost and no "rare" or "specialized" circuit beyond the standard IR2110.
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Thank you for taking the time to respond !
I didn't bother to much with crossovers yet, because I'm not sure about the speakers I'll use. But I'll use passive ones.
I heard about the TPA3116 alternative too, but many of them have distorsions and background noise, and I really will not have the time to tweak them. That was indeed my first option too.
Another option would be to use 2 channels for the mid/bass speakers, and the other 2 for some tweeters. This option scares me a bit because I'm afraid they will not sound very good in the lower end. I don't want volume and ear bleeding bass, I personally hate this, but I don't know which option to choose.
Thanks alot for the circuit design, it's impresive. My concern is that I will not have the time to gather and assemble all the components.
I didn't bother to much with crossovers yet, because I'm not sure about the speakers I'll use. But I'll use passive ones.
I heard about the TPA3116 alternative too, but many of them have distorsions and background noise, and I really will not have the time to tweak them. That was indeed my first option too.
Another option would be to use 2 channels for the mid/bass speakers, and the other 2 for some tweeters. This option scares me a bit because I'm afraid they will not sound very good in the lower end. I don't want volume and ear bleeding bass, I personally hate this, but I don't know which option to choose.
Thanks alot for the circuit design, it's impresive. My concern is that I will not have the time to gather and assemble all the components.
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OK, as I use it in my job PC, I have only two 4" common speakers, so I can't nor I want to run them too loud. But noise is clearly under that of the PC plus internet connection. No audible noise when no signal. It run about 300KHz, so not too good fidelity, but IP radio has´t no more than 8KHz, so they run perfect under those circumstances.
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