tomizett
Active Member
I'll leave this here in case it's of use to anyone else repairing one of these.
I've traced a more-or-less complete circuit diagram for the SM2000 public adress amplifier from German manufacturer PSE (professional sound equipment). This is an older unit which is out of production, and there seems to be very little info on the 'net.
Only the amplifier itself (the interesting bit!) is included - I've omitted the protection circuitry, clip detection, power supplies, etc.
It's worth a peek if youre interested in amplifier design, as it's an interesting hybrid class-G/switching topology, similar to that used in some Yamaha amplifiers.
The schematic is drafted in LTspice (.asc file).
I've traced a more-or-less complete circuit diagram for the SM2000 public adress amplifier from German manufacturer PSE (professional sound equipment). This is an older unit which is out of production, and there seems to be very little info on the 'net.
Only the amplifier itself (the interesting bit!) is included - I've omitted the protection circuitry, clip detection, power supplies, etc.
It's worth a peek if youre interested in amplifier design, as it's an interesting hybrid class-G/switching topology, similar to that used in some Yamaha amplifiers.
The schematic is drafted in LTspice (.asc file).
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