Hello,
I am in need of a new portable speaker and I thought it would be fun to make one myself.
It's supposed to become a big one. Not JBL Charge scale, JBL Boombox scale. Because why not? When I was searching for some cheap but decent mid woofers I realized I actually have two 7" Dayton Audio Esoteric ES180Ti-4's laying around. Because I was planning on using those in my main speakers back when my knowledge was limited. Costing about €150 each when I bought them and being not the best but wuite high performance they're EXTREMELY overkill for a portable speaker. Though I don't have any other use for them so why not?
As passive radiators I was thinking of using two SB-Acoustics SB15SFCR-00 5 x 8". They seems to pair quite well with the drivers. F3 of 40 Hz which I think is quite awsome from a 22,5 L portable speakers, decent impuls response and the excursion of both the drivers and passive radiators is very well controled. Though I don't have any experience with passive radiators, does this look reasonable? However I've got to mention that the software is off compared to the given speciafications of the driver. The software thinks they are 7 dB more efficient than they are and that the have a Mms of 131 g, which is actually 27. And the force factor is 21,2 instead of 9,6. Someone know what is causing this? Because then it's probably not simulating the enclosures performance correctly as well.
As the tweeters I was thinking about the SB-Acoustics SB26STCN. It's an inexpensive tweeter with a small faceplate which is ideal for a portable speaker. Obviously it doesn't perform like a Satori but it seems very decent. Like one would come to expect from SB. And anyway, it's a portably speaker, the performance isn't that critical.
Though what I'm mainly looking for now is amplification. I need four channels with chargeable battery, bluetooth and DSP. I know of the Dayton Audio boards but the problem is that their battery pack is 12 V, not 24 V which I've read greatly limits the amps performance. Anyone know a better option? Or a way to make a big 24 V power supply?
Thanks
I am in need of a new portable speaker and I thought it would be fun to make one myself.
It's supposed to become a big one. Not JBL Charge scale, JBL Boombox scale. Because why not? When I was searching for some cheap but decent mid woofers I realized I actually have two 7" Dayton Audio Esoteric ES180Ti-4's laying around. Because I was planning on using those in my main speakers back when my knowledge was limited. Costing about €150 each when I bought them and being not the best but wuite high performance they're EXTREMELY overkill for a portable speaker. Though I don't have any other use for them so why not?
As passive radiators I was thinking of using two SB-Acoustics SB15SFCR-00 5 x 8". They seems to pair quite well with the drivers. F3 of 40 Hz which I think is quite awsome from a 22,5 L portable speakers, decent impuls response and the excursion of both the drivers and passive radiators is very well controled. Though I don't have any experience with passive radiators, does this look reasonable? However I've got to mention that the software is off compared to the given speciafications of the driver. The software thinks they are 7 dB more efficient than they are and that the have a Mms of 131 g, which is actually 27. And the force factor is 21,2 instead of 9,6. Someone know what is causing this? Because then it's probably not simulating the enclosures performance correctly as well.
As the tweeters I was thinking about the SB-Acoustics SB26STCN. It's an inexpensive tweeter with a small faceplate which is ideal for a portable speaker. Obviously it doesn't perform like a Satori but it seems very decent. Like one would come to expect from SB. And anyway, it's a portably speaker, the performance isn't that critical.
Though what I'm mainly looking for now is amplification. I need four channels with chargeable battery, bluetooth and DSP. I know of the Dayton Audio boards but the problem is that their battery pack is 12 V, not 24 V which I've read greatly limits the amps performance. Anyone know a better option? Or a way to make a big 24 V power supply?
Thanks
24 Volt LiFePO4 Batteries with BMS (Battery Management System) are pretty common for the electric bike world, if you want to play really loud and long.
24v tool batteries are common too, you may even have one already.
12v to 24v DC converters are also available, the Sure Electronics PS-SP12161 100W 12V DC/DC converter available from Parts Express costs $28.
Using an inverter opens up a lot of battery options, almost all cars and motorcycles and lots of cheap tools use them.
24v tool batteries are common too, you may even have one already.
12v to 24v DC converters are also available, the Sure Electronics PS-SP12161 100W 12V DC/DC converter available from Parts Express costs $28.
Using an inverter opens up a lot of battery options, almost all cars and motorcycles and lots of cheap tools use them.