That's what i was asking myself ... are ther only one main voltage in an amplifier or multiple, cause i would be able to remove the internal transformer for one external single voltage but not for multiple (seems too complicated).
Expect to see a bunch of different power supplies in that one. The power transformer is likely to have multiple windings for them and most of them are probably regulated except for those running the output section.That's what i was asking myself ... are ther only one main voltage in an amplifier or multiple, cause i would be able to remove the internal transformer for one external single voltage but not for multiple (seems too complicated).
Now i got an old Yamaha RXV800, i will open it to see how it goes on the power input side.
The other thing is that i'm off grid .. and Class D amplifier are pretty energy efficient, that's an other point to take into account.
There will be high-voltage rails for the power amplifier, probably +/-5 to +/-15 V for opamps, and several rails for digital circuitry. There may be only 2-3 transformer taps used and the other voltages regulated from those, but there is almost certainly more than one. I'd guess 3-5, be interested to see what you find.
Living off grid and you want to run that thing?That's what i was asking myself ... are ther only one main voltage in an amplifier or multiple, cause i would be able to remove the internal transformer for one external single voltage but not for multiple (seems too complicated).
Now i got an old Yamaha RXV800, i will open it to see how it goes on the power input side.
The other thing is that i'm off grid .. and Class D amplifier are pretty energy efficient, that's an other point to take into account.
Hooo cooomooonn ... do not say that before i open it ..
Lol, yea .. i'll start the thing only on heavy sun days to start up the RXV800 and celebrate for the day ... i got lot energy to spare on sunny days.Living off grid and you want to run that thing?
Invest in a used warp engine, make sure you check the plasma manifolds.
Where are you? I am jealous.
Didn't ask for his address! Off-grid to me, means off electricity grid, what does it mean to you?He wants to be off the grid and you ask him where he lives.
Relax. Just kidding.Didn't ask for his address! Off-grid to me, means off electricity grid, what does it mean to you?
Approximate area will do!
That's what i was asking myself ... are ther only one main voltage in an amplifier or multiple, cause i would be able to remove the internal transformer for one external single voltage but not for multiple (seems too complicated).
Now i got an old Yamaha RXV800, i will open it to see how it goes on the power input side.
The other thing is that i'm off grid .. and Class D amplifier are pretty energy efficient, that's an other point to take into account.
Look into hi-end car stereo amplifiers.
Why is that? And is it avoidable?
Because there is zero market demand. Your use case is really specialized. However there are modules available without power sources-though you'd need to get a case as well. There are also amps with no power supply, or just wall warts, although those tend to be small chip amps. I'd recommend posting a thread "looking for amp modules to match a XX volt battery supply" here and maybe https://www.diyaudio.com/community/forums/power-supplies.67/
Hello,
Lol, not really, i'm living with no electricity or water contract, i store rain water and sun energy ..
.As @TrippRyder suggested. Car hifi amps are an excellent idea. No DIY needed. No niche product (produced in big enough quantities). Environmentally robust.
Yes good idea .. and i'm an idiot cause i got one unused ...
, it's a low end one so ...Yes, fully agreed. I am one who really hates external power supplies. I prefer the unit to have everything built in and not having an external power brick.
Having just been in the Lake District over the summer, I attest to this. (Though when the sun does peep out, OH how GLORIOUS. And those gingerbread cookies mmmmmmm)
