Weak sound from lp12

Posted by: Martin Morgan on 04 August 2016

hi all , seem to be suffering from a lack of dynamics and gain on my lp12 ,system is lp12 ittok 10 x cartridge feding a72 pre all serviced etc ,any ideas why ,regards 

Posted on: 07 August 2016 by Martin Morgan

Looks that way now .but  the board's have been done not long ago .I was shocked to be honest how good the project was it cost me 30 quid lol 

Posted on: 07 August 2016 by joe9407

Hi Martin,

I thought the Dynavector P75 phono stage was a great improvement over a Stageline N when used with my 10x5 cartridge. I strongly recommend that you have a listen to one -- it was made to go with your cartridge and there's real synergy there.

All best,

Joe

Posted on: 08 August 2016 by Ron Toolsie

Way back in 1981 I took along a Nytech 252XDii receiver with built in MC phono stage to a friends dorm room who was using  the original Dynavector 10X into the Arcam A60 amp with a MM phono stage.  Turntable was the then mandatory LP12/Ittok. Now, I have compared the Arcam and the Nytech side by side with equivalent phono stages before-the Nytech was a tad better,  but not in a different league (like the 42/110 was for instance). 

Running the 10X into Nytechs MC phono stage was an ear-opener compared to the MM input of the A60. Huge increase in dynamics and verve. And no overload distortion, although the volume had be be lowered a few notches on the slider. 

Since that time I have tried HO MC into high gain stages meant for LO devices many times, and have always preferred the result compared to going into a MM input. 

This maybe has something to do with the load input-which is around 100 ohms for MC stages but many times higher for MM inputs. 

So try to see if you can swap your MM cards for an 'S' MC phono cards. Even better if they have been serviced to include the Z-foil loading resistors. And then see if your Project phono stage is a keeper. 

Posted on: 08 August 2016 by Richard Dane

If you try as Ron has suggested above, I would further suggest trying the lower gain NA323E MC cards which will better cope with the relatively high output of the 10X5. Late ones sometimes also appear as NA323R boards.  On a related note, the high output MC Denon DL110 (1.6mV) supposedly works much better into E boards than through MM N boards.