2-stage split gain phono preamp with passive-active RIAA

[stratokaster83]

Thanks Marcel, I will look into Hans' research.

 

[andyr]

Assuming total capacitance of 100pF or less, resistive loads between 68kOhm and 100kOhm seem to give the best frequency response and the least amount of peaking compared to conventional loading (47kOhm + 150-300pF), at least for my cartridges.

I presume you arrived at this conclusion by actually listening to the carts, with loadings between 68k and 100k?

Or do you think computer modelling is preferable?

 

[Hearinspace]

I never heard of PhonoLCR, but if it models . . . . . .

It's on this page.

 

[MarcelvdG]

Thanks. It models the loaded cartridge with just two ideal resistors, an ideal inductance, an ideal capacitance and a voltage source, like I was afraid it would do. No mechanical effects and no iron losses included.