hello to all, here I have at my disposal 4 Bouyer type AS240 and 245 amplifiers which are intended to work mainly under 100V line, their design had been made for this but they can also be used under 4 - 8 or 16 ohms thanks to its output transformer.I used about ten years ago it's amplifiers for car races or noises and quite important with as loudspeaker 100V line horn type IT-50 from Monacor. as the power of this amplifier is 240W rms at 480 W peak,and the number of speakers that I had to place was too large, I turned to QSC type ISA800T amplifiers which are dual mono but with more power available for less weight: 2 bouyez are 52 KG for 2 x 240W, the QSC isa800TI weighs 26 KG for 2 x 800 Watts knowing that the power to be used must be 68% for the 100V line.
to get to the heart of the matter, I would like to be able to use the 4 output transformers whose primary impedance is 2 ohms defined on the Bouyer plan, so I'm looking to make an amplifier with 4 x 100v line output and an SMPS power supply preferably to maintain a reasonable weight and therefore I am looking for an amplifier under 2 ohm load not too complicated to make or so as on sale on aliexpress in this style:
https://fr.aliexpress.com/item/4000....0.0.2175378dBIRjDi&mp=1&gatewayAdapt=glo2fra
https://fr.aliexpress.com/item/1005....0.0.2175378dBIRjDi&mp=1&gatewayAdapt=glo2fra
SMPS:
https://fr.aliexpress.com/item/4000....0.0.2175378dBIRjDi&mp=1&gatewayAdapt=glo2fra
in summary: a common power supply with 2 stereo modules or 4 mono modules, I only plan one potentiometer per channel as well as their individual power switch and for their signal inputs it will be by mixer which will have all these preamp functions and tone corrector. only thing that seems important to me and to have 4 VUmeter output to keep an eye on their output level.
I have no feedback from these amplifier boards. ( original schema As240 -245 with 12 x 2n3055 transistors output )
Phil
to get to the heart of the matter, I would like to be able to use the 4 output transformers whose primary impedance is 2 ohms defined on the Bouyer plan, so I'm looking to make an amplifier with 4 x 100v line output and an SMPS power supply preferably to maintain a reasonable weight and therefore I am looking for an amplifier under 2 ohm load not too complicated to make or so as on sale on aliexpress in this style:
https://fr.aliexpress.com/item/4000....0.0.2175378dBIRjDi&mp=1&gatewayAdapt=glo2fra
https://fr.aliexpress.com/item/1005....0.0.2175378dBIRjDi&mp=1&gatewayAdapt=glo2fra
SMPS:
https://fr.aliexpress.com/item/4000....0.0.2175378dBIRjDi&mp=1&gatewayAdapt=glo2fra
in summary: a common power supply with 2 stereo modules or 4 mono modules, I only plan one potentiometer per channel as well as their individual power switch and for their signal inputs it will be by mixer which will have all these preamp functions and tone corrector. only thing that seems important to me and to have 4 VUmeter output to keep an eye on their output level.
I have no feedback from these amplifier boards. ( original schema As240 -245 with 12 x 2n3055 transistors output )
Phil