Looking for some insight. Fresh meat here- Need 8 Channel AMP for DIY speaker project. Getting 8X200 store bought etc would cost a small fortune. Came across a DIY amp using 2 L15D with an SMPS500R..
I want to use 8 L15D with a Connex SMPS2000RxE 60V. Doable or is there a better way? Budget build- Amp boards total is like $250 for 8 of them- need 8X200-300W @4ohm clean. The speakers Im building will need 150-200W for the woofer alone- then enough to power the Mid/TW
Links to both-
https://www.amazon.com/.../B07TV.../ref=ox_sc_act_title_1...
https://connexelectronic.com/product/smps2000rxe/
I want to use 8 L15D with a Connex SMPS2000RxE 60V. Doable or is there a better way? Budget build- Amp boards total is like $250 for 8 of them- need 8X200-300W @4ohm clean. The speakers Im building will need 150-200W for the woofer alone- then enough to power the Mid/TW
Links to both-
https://www.amazon.com/.../B07TV.../ref=ox_sc_act_title_1...
https://connexelectronic.com/product/smps2000rxe/
The link to the Amazon amp says it takes from +35v and -35v up to +50v and -50v. Which makes me think that the output signal is going to cross over 0v like a Class A/B amp???? I could be wrong???
Personally I would look at a TPA3255 4 channel amp board (or similar) and not have to mess with a dual voltage (+ voltage, - voltage) power supply. It looks like the PS you linked to is +-60v? Outside the recommended range for the board you linked to?
https://www.amazon.com/s?k=tpa+3255+4+channel
This would allow you to use a single voltage +36v or +48v power supply.
Or maybe look for a DSP + TPAxxxx amp combo and use the DSP to program the crossover for the speakers instead of passive crossovers.
Personally I would look at a TPA3255 4 channel amp board (or similar) and not have to mess with a dual voltage (+ voltage, - voltage) power supply. It looks like the PS you linked to is +-60v? Outside the recommended range for the board you linked to?
https://www.amazon.com/s?k=tpa+3255+4+channel
This would allow you to use a single voltage +36v or +48v power supply.
Or maybe look for a DSP + TPAxxxx amp combo and use the DSP to program the crossover for the speakers instead of passive crossovers.
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Thanks Von, much appreciate your AD.
And, I put the link here if any friends have interesting in these amp modules:
https://www.diyaudio.com/community/threads/2x150w-amp-module-for-sale.388868/
And, I hope this will not ruin your thread. @Bergarth
Thanks,
Eric
You could look at the the 3255 based 3e Audio 480-1-29A. Amir tested the amp with power supply (LINK). Amir got ~250 W @ 1% THD into 4R. For the mid and tweeter you could use the stereo version, 260-2-29A. It was also tested by Amir (LINK). The mono amp is $90 and the stereo version is $110 (LINK). Both use single ended power supplies. Just something to consider.
Hi, I made 8 channel amp from four ICEpower 200as2 modules, which is two channel TPA3255 based amp, PSU included so is wee bit more expensive than 3e. If I'm not mistaken there is extra DC rail for "hanger module", a small power tweeter amp if one wants to save a little.
8 channel box gets closer to 800-1000€ though, case and other hardware included, and has quite a lot of work due to multiple mounting points and connectors, of course depending on case realestate and how familiar you are woth the stuff. I ended up with these modules after considering bunch of options. I could have saved some by using modules without psu, but perhaps would have needed bigger enclosure and time for troubleshooting, both something I didn't want. I think it's better to spend bit more for (almost) quaranteed success than almost as much with higher propability of failure.
8 channel box gets closer to 800-1000€ though, case and other hardware included, and has quite a lot of work due to multiple mounting points and connectors, of course depending on case realestate and how familiar you are woth the stuff. I ended up with these modules after considering bunch of options. I could have saved some by using modules without psu, but perhaps would have needed bigger enclosure and time for troubleshooting, both something I didn't want. I think it's better to spend bit more for (almost) quaranteed success than almost as much with higher propability of failure.
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