I'm looking for a nice Class A mosfet based amp that will do 100wpc at 8ohms. I'd like it to be a PCB that is available somewhere that I can buy right now. Any idea's? Right now the speakers are Klipsch Reference but eventually it will be large 3 ways using RS driver most likely.
Hi,
ClassA output power is limited by the level of ClassA current available.
If you have a 60W into 8ohm ClassA output and instead connect a 4ohm load the maximum ClassA output drops to 30W.
Use P=I^2*Rload instead of the usual P=V^2/Rload to see the effect of a load change.
ClassA output power is limited by the level of ClassA current available.
If you have a 60W into 8ohm ClassA output and instead connect a 4ohm load the maximum ClassA output drops to 30W.
Use P=I^2*Rload instead of the usual P=V^2/Rload to see the effect of a load change.
http://www.ska-audio.com/diy/003.html
GB300D (mono)
Bare PCB US$60 + $4 p&p
Full module kit US$135 + $8 p&p
Built/tested module US$200 + $12 p&p
GB300D (mono)
Bare PCB US$60 + $4 p&p
Full module kit US$135 + $8 p&p
Built/tested module US$200 + $12 p&p
Good one, Dennis.
Dougie,
you can still use IRFP9140s for the full Class A version of the GB300D.
No idea how the Class A version of the 300 sounds, i haven't read of someone constructing one yet, the GB150D in 50 watt A i assembled is excellent value for money and really fast to put together.
Ordering the IRFP9140 is apac on your end.
Dougie,
you can still use IRFP9140s for the full Class A version of the GB300D.
No idea how the Class A version of the 300 sounds, i haven't read of someone constructing one yet, the GB150D in 50 watt A i assembled is excellent value for money and really fast to put together.
Ordering the IRFP9140 is apac on your end.
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