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Old 28th September 2012, 02:32 PM   #21
x-pro is offline x-pro  United Kingdom
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Originally Posted by tiefbassuebertr View Post
Which parts are determine the line gain factor after remove the RIAA network consist of C5+10/R8+9/C4 ?
One part is the resistor R2 + the forward transfer admittance.
The gain is determined by that and by the dynamic impedance of the load, including Q1-Q4, C2, R1 and R4. For that reason R4 may need to be adjusted for the flattest frequency response at LF as Q1-Q4 parameters may vary from one manufacturer to another.


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Old 10th January 2016, 03:28 PM   #22
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which other available commercial RIAA head amplifiers like Creek's OBH-8 topology resp. the other here mentioned circuit versions was on the market?
Thanks for advices.
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