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RE: Variables

75.168.151.243

In Reply to: RE: Variables posted by MP on December 20, 2022 at 11:14:00

Read it somewhere that one could increase phono stage impedance from 47K to 100K or higher to give higher primary load that cartridge sees and increase efficiency (gain). Do I understand correctly?

I don't think so. You have to load the transformer correctly in order for it to express its turns ratio correctly. If the load value is too high, the inter-winding capacitance starts to play a role and the frequency response won't be as flat.

I would check with the manufacturer and see if they have a recommended network for loading with your cartridge. Don't forget that the capacitance of the phono cables also plays a role- for this reason the output cable should be as low capacitance as possible!

Follow Ups:

RE: Variables - MP 04:30:19 05/05/23 (0)
Installed a cartridge Dynavector Te Kaitora Rua (0.26mv, 6ohms). SUT Loads at 30X. Very happy with the sound.

I think my MP3/M60/Quad 989 likes high phono input (7.8 mV).

Bought an used Coincident Total Eclipse (94 sensitivity, 14 ohm impedance), waiting for delivery. Read old posts that M60 and total Eclipse are great match.
RE: Ralph, thank you. Very informative. NT - MP 13:33:11 12/20/22 (0)
NT

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