Phono Cable optimal vs max length?

Fap and Albert, the cartridge is the Clearaudio Insider Ref Wood, .6 mV out put and is MC type. The spec /measurement form Clearaudio says 36 ohm cart (imp?). The phono unit is Zanden 1200 and am using the high input impedence ( 40 ohm) inputs of the phono unit and works great with ~ 1.2 m length of std phono cable length. From what you say there is a good chance longer length may work without any degradation with this set up. I intend to have a custom 4m cable made of exactly the same as my current cable that is attached to my Clearaudio Master Ref TT set up, so i think it may be worth a try. Unfortunately, since this is custom cable and actually Clearaudio will be doing a favor to me, it would be a final sale and I will be stuck with it if it does not work... I still have couple of days to decide so more inputs are welcome.

Dear Nillthepill: The Insider impedance that you name it is the internal cartridge one.
This cartridge normally has to be loaded over 1 Kohms so I don't think you can have any trouble with a 4m cable due to impedance cable value ( normally a top cable has very low resistance by meter, you have to check this. ) but IMHO 4m are too long for that tiny signal cartridge ( specially if your connection is through RCA ( unbalanced ) where that " long distance " the signal must pass and could degrade and contaminate/corrupt it.

If you care about music and about the quality performance level of your analog rig IMHO if I was you I try very hard another solution looking to the phono stage be nearer to the tonearm.

Regards and enjoy the music.
Raul.

Dear Nillthepil: Forget what I post about the Insider load impedance ( 1K ) because I forgot that your phono stage is using step up transformers, this fact could make things a little more critical on the impedance/resistance subject.

Regards and enjoy the music.
Raul.

Raul, Thanks for the input. I do have option B to keep the phono unit next to the TT (my current set up) I was hoping that I can also hook up my other TT (La Luce, SPJ, Helikon cart /SPJ cart)set up to low input of my Zanden Phono so now I can both TTs thru one phono. Yes, I do care about my TT performance which is stellar (imho) currently and would hate to change it for the worse....