Seduction with Stereomour?

[Grainger49]

Back some months ago I was using my vintage DL-103C with my setup.  I have a buddy using a new DL-103 with my old Seduction and my Denon SUT.  Both worked perfectly with the Denon SUT.  Right now I am out of town so I can't look up the specs on it.  

BTW, Paul Joppa gave some good information about the needed turns ratios and impedances on transformers some time back.  I expect it is in the phono folder.

 

[Downhome Upstate]

Back some months ago I was using my vintage DL-103C with my setup.  I have a buddy using a new DL-103 with my old Seduction and my Denon SUT.  Both worked perfectly with the Denon SUT.  Right now I am out of town so I can't look up the specs on it.  

BTW, Paul Joppa gave some good information about the needed turns ratios and impedances on transformers some time back.  I expect it is in the phono folder.

Do you remember the turns ratio used with the Denon SUT?

 

[Paul Birkeland]

The DL-103R has ~0.25mV of output, the DL-103 0.3mV.

I've successfully used a Seduction with cartridges rated at 6.8mV, and the balance of gain was outstanding.  To get there with 0.25mV, you'd want a voltage step-up of about 1:20.

With a voltage step-up of 1:30, you'll end up with ~7.5mV, which is potentially too much, but give it a try anyway, on that Cinemag unit, it's more like 1:36, which will push it even higher.  I think the 1:18 should work really well!

-PB

 

[Grainger49]

I'll mark this thread unread and look up the specs when I get back home.

 

[Paul Joppa]

I don't have the numbers handy, but as I recall the DL-103 has a DC resistance comparable to the resistive impedance load presented by the stepup transformer/Seduction combination. That means a substantial signal reduction; if the resistances are matched it cuts the voltage in half (-6dB). Some enthusiasts think that is a good option, providing some damping of the vinyl/tip mass resonance.

 

[Grainger49]

It seems that the instructions ended up with my friend who is borrowing the SUT right now.  I will contact him tonight and see if he can locate the specs.

 

[Downhome Upstate]

I have determined that discretion is the better part of valor here.  Accordingly, I will be advancing to the rear, with dignity.

Placed an order for the Audio Technica AT7V, a low compliance, low tip mass MM design with 5 mv out that should be a great match for the Jelco arm and the Seduction.

God willing, I will live to screw around with LOMC cartridge loading another day.