recently got some def tech bp7006 towers (bi-pole speakers with an active 8" sub built in) with the 'hum' issue everyone reports. rather than dumping additional money into fixing them with the cap mod/replacement in hopes they stay fixed or even paying the $200/ea for new modules from def tech. i was thinking of just taking the transformers out and building a linear power supply with them and adding an amp module to power them instead
i have put together a 3ch ICEPower ASP amplifier (500asp and 2x 500a hangers) but this was much more plug and play and didnt require me too deep into anything there. obviously buying a SMPS or even meanwell power supply is what i would do if i were buying a net-new amp, but i figured i already have the transformers, lets take it from there. so i have some general knowledge, just not a ton
just measured the 8" driver in the BP and it's 4ohm
regarding the transformer:
1) i am a complete noob here on building a linear power supply. i understand i have (2ea) 49.5v and 24v AC rails. i have no idea what that means. do i have a SE 49.5v or a +/- 49.5v available to me?
2) ok, so i have these AC rails, i need to send them through a 'power supply' which i believe to be a rectifier and regulator in one to get them to DC?
3) do i have an ability to get a differential output from the one transformer? to get the +/- DC voltage lots of these amp modules required?
4) how do i know what my final output voltage will be when i send them through this power supply (just did some digging here, looks like ACv*~1.41 = DCv, looks like i have 34 and 70v DC available to me)? i'm looking at connex and it doesnt say how much AC voltage i need to bring to the table to get the output DC voltage, or does it just simply need to exceed the DC voltage i'm targeting?
regarding amp module to power the sub, i've narrowed it down to these options as i believe they call can operate within a reasonable voltage, but again, i have no idea how much is available to me based on the fact i dont know anything about building toroidal power supplies
1) 2x L15D
2) i have a 250a module just sitting around, however finding these is challenging for a second, and just one doesnt look like it's 2ohm stable
3) 2x mx50
4) 1x 3e 3251
5) other suggestions?
i have put together a 3ch ICEPower ASP amplifier (500asp and 2x 500a hangers) but this was much more plug and play and didnt require me too deep into anything there. obviously buying a SMPS or even meanwell power supply is what i would do if i were buying a net-new amp, but i figured i already have the transformers, lets take it from there. so i have some general knowledge, just not a ton
just measured the 8" driver in the BP and it's 4ohm
regarding the transformer:
1) i am a complete noob here on building a linear power supply. i understand i have (2ea) 49.5v and 24v AC rails. i have no idea what that means. do i have a SE 49.5v or a +/- 49.5v available to me?
2) ok, so i have these AC rails, i need to send them through a 'power supply' which i believe to be a rectifier and regulator in one to get them to DC?
3) do i have an ability to get a differential output from the one transformer? to get the +/- DC voltage lots of these amp modules required?
4) how do i know what my final output voltage will be when i send them through this power supply (just did some digging here, looks like ACv*~1.41 = DCv, looks like i have 34 and 70v DC available to me)? i'm looking at connex and it doesnt say how much AC voltage i need to bring to the table to get the output DC voltage, or does it just simply need to exceed the DC voltage i'm targeting?
regarding amp module to power the sub, i've narrowed it down to these options as i believe they call can operate within a reasonable voltage, but again, i have no idea how much is available to me based on the fact i dont know anything about building toroidal power supplies
1) 2x L15D
2) i have a 250a module just sitting around, however finding these is challenging for a second, and just one doesnt look like it's 2ohm stable
3) 2x mx50
4) 1x 3e 3251
5) other suggestions?
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