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MC Phono preamp gains

If an MC phono preamp supports 45dB to 70dB, then would it work just like MM phono preamp if its gain is set at 45dB?
If that's the case, those phono preamps which support both MM and MC can essentially work as two MM inputs, right?

I am looking for a phono preamp that supports two MM inputs. I already have an SUT for my MC cartridges, so an MC input is not needed, but there exits very few phono preamps which support two MM inputs. So, I wonder if I can use those phono preamps that support both MM and MC as two MM input phono by setting the MC gain to the lowest (45dB).
128x128ihcho
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ihcho OP
612 posts
 
Al,
My preamp's input impedance is 50K ohm, so I guess it would be fine?
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almarg
9,670 posts
 
Yes, 50K is fine, balanced or unbalanced.

Regards,
-- Al
lewm
13,071 posts
 
Did not know about JA's measurement. Thanks. I have not poked around in the line stage section of the Janus, as mine works fine. On the other hand, I did something to the L channel of the phono stage that I cannot seem to fix, which is why I was trying to figure out its topology without a schematic, just by measuring voltages. However, you've given me some food for thought. I had intended to use the Janus to drive my Beveridge direct-drive amplifiers, which are mounted inside the speakers. The Bev amplifiers use a solid state input and driver stage, so there is a chance that the Janus with its high-ish output Z might have a problem driving them, although I do not know exactly what is the input Z of the Bev amplifiers. I will need to figure that out.

Thank you for your remark about the loss of my friend. He was by far my closest "audio" buddy; we knew each other for more than 40 years, and I do miss him.
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