Preamp 47K load. Cartridge needs 330 ohm

Experts!!!

Preamp is Conrad Johnson PV7. Recently refurbished by Music Technology.

Cartridge is Miyabi Cello Chorale 0.35 mV and needs 330 ohm load.

How do I solve. Preamp load not adjustable. Any interface box like Puffin?

Or maybe a Andover SPINSTAGE PHONO PRE-AMP

Or a Lundahl or similar transformer? I am not sure.

Thank you.

dcaudio03-24-2024 11:40am

elliottbnewcombjr Details Discussions Posts This discussion Message User 5,202 posts 03-24-2024 at 08:22pm Copy Comment URL Report Comment Edit Delete An xFactor of 12 would be good. .35 signal x 12 = 4.2 mv, a very good signal strength for MM Phono Inputs. xFactor 12 results in an impedance of 326 'shown to your PV7, very close to recommended 330 ohms
lewm Details Discussions Posts This discussion Message User 12,526 posts 03-25-2024 at 12:33am Copy Comment URL Report Comment Edit Delete Where is the OP going to find a SUT with a 1:12 step up ratio? If such a one exists off the shelf, it might be unique. Whereas there’s a plethora of choices among 1:10 SUTs.
czarivey Details Discussions Posts This discussion Message User 5,714 posts 03-25-2024 at 01:53am Copy Comment URL Report Comment Edit Delete Nad used to make inexpensive electronic pre-phono box that boosts necessary gain pretty much for any cartridge. Classe Audio NIL is probably higher priced pre-preamp.
imhififan Details Discussions Posts This discussion Message User 2,125 posts 03-25-2024 at 02:01am Copy Comment URL Report Comment Edit Delete Where is the OP going to find a SUT with a 1:12 step up ratio?
samssa Details Discussions Posts This discussion Message User 8 posts 03-25-2024 at 11:57am Copy Comment URL Report Comment Edit Delete If you like Jensen the JT-347-AXT transformer is 1:12.