Hi
I'm looking at building another discrete opamp preamp and while looking at a few designs I have seen quite different emitter resistor values ranging from - 3.9ohms on a bryston design to 33ohms on the JE990 design. Samual Groner
uses anything from 2.7ohms to 18ohms.
Is there a calculation for this resistor, can you scope the difference in values - is there a big difference between say 3ohm, 6ohms and 10ohms in the same circuit? does it make an audible difference going from 30ohms down to a lower value ?
thanks
Rob
I'm looking at building another discrete opamp preamp and while looking at a few designs I have seen quite different emitter resistor values ranging from - 3.9ohms on a bryston design to 33ohms on the JE990 design. Samual Groner
uses anything from 2.7ohms to 18ohms.
Is there a calculation for this resistor, can you scope the difference in values - is there a big difference between say 3ohm, 6ohms and 10ohms in the same circuit? does it make an audible difference going from 30ohms down to a lower value ?
thanks
Rob
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