Please Help T3F problems

I can tell you that Raul does not have Apogee speakers.

You are correct in noting that there is a huge difference between your two cartridges.  You could, in the interim until you can get the T3F fixed, move the Koetsu to the LP12, but you need a very high effective mass tonearm to get the most out of the Koetsu, and I don't know anything about the Ittok.  The good news is you can increase the mass of the Ittok in any of several ways, as simply as putting a coin on the top of the headshell.  A US nickel weighs 5g, for example.

Thanks lewm

@scotchboy 

Actually you should not add mass to the Ittok headshell if you run the Koetsu Onyx on the Ittok.

I had a customer with Linn/Sumiko MDC800/Koetsu Onyx Gold - sounded superb.

The MDC800 is only 11g effective mass.

The Ittok LVII is 13.5g effective mass.

The Onyx is quite heavy at 12.5g, ( most of the Linn cartridges are around 7g ) and adding further mass to the Ittok headshell with the Onyx installed will degrade the sound. If anything you might need a heavier counterweight to optimise the sound by running the counterweight closer to the pivot.

So - if you want to run the Ittok/Onyx - just install as is.

Be careful, the Onyx bodies are easily cracked - do not do the bolts up too tight - just a gentle pinch.

Thanks Dover

Especially on installing the cartridge. The Linn rep once told me "there are three kinds of tight: theres tight, theres F_ _ _en tight and then there's Linn tight" 

Lol, the next cartridge I installed was a Grace cartridge and I crushed the body

@scotchboy 

Yeah Ivor was pretty funny. The Ittoks have "soft bearings" and they recommended taking the arm off to install a cartridge so the bearings don't get damaged. Now I know why. Actually the Ittok is underrated - it does work with a wide variety of cartridges, assuming it is in good condition.