good morning.
Do you know D25 digital amplifier?
I want to create a multichannel with D25 amplifier.
It originates from IRAUDAMP7 IRS2092.
It offers 200-250watt rms in 8 ohms, with +/- 60v to +/- 80 volts.
I have created a 4 channel preamplifier, with parallel possibility, or bridge.
I have a large transformer, taken from bheringer ep4000 and modified for 50 volt output,
after rectifier bridge and capacitor it becomes +/- 70volt.
70v was ok for operation, with 80 volt temperature d25 being very high. +/- 70volt is right.
Now i want to build home, for 4ch amplifier, and insert amplifiers, preamplifier and transformer a 1u rack,
but transformer is very big and heavy,
i would like to build smps for 4 pcs d25 but i think i be very powerful and dangerous.
I would like to build 2 smps for 4ch d25 amp, 1smps for 2 channels.
I did research and testing, found that for maximum rms power d25 i need about 4 amps.
Here are some calculations
Vin = 70V
Veff = 64V
Prms = 250W
250w / 64V = 3.9A
In peak power about 8A
You have idea to get smps output +/- 70v about 8Amper continuous and peak 16Amper
with aux output +/- 15v 1 Amp
and turbo fan output 12v 1.5A
Do you know D25 digital amplifier?
I want to create a multichannel with D25 amplifier.
It originates from IRAUDAMP7 IRS2092.
It offers 200-250watt rms in 8 ohms, with +/- 60v to +/- 80 volts.
I have created a 4 channel preamplifier, with parallel possibility, or bridge.
I have a large transformer, taken from bheringer ep4000 and modified for 50 volt output,
after rectifier bridge and capacitor it becomes +/- 70volt.
70v was ok for operation, with 80 volt temperature d25 being very high. +/- 70volt is right.
Now i want to build home, for 4ch amplifier, and insert amplifiers, preamplifier and transformer a 1u rack,
but transformer is very big and heavy,
i would like to build smps for 4 pcs d25 but i think i be very powerful and dangerous.
I would like to build 2 smps for 4ch d25 amp, 1smps for 2 channels.
I did research and testing, found that for maximum rms power d25 i need about 4 amps.
Here are some calculations
Vin = 70V
Veff = 64V
Prms = 250W
250w / 64V = 3.9A
In peak power about 8A
You have idea to get smps output +/- 70v about 8Amper continuous and peak 16Amper
with aux output +/- 15v 1 Amp
and turbo fan output 12v 1.5A