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Linn Basik Tonearm - effective mass?

Hi,

I need some quick help.

I'm in communication with Grado re: a woofer pumping problem I'm having with my set-up: Systemdek IIX, Grado Platinum, Linn Basik arm, Arcam A75 integrated, and B&W CM4's.

I've tried all sorts of fixes without success and am ready to try a high pass filter. I have one on order from KAB which has a 15 day return policy so no great risk.

Anyway, Grado wants to know the exact effective mass for the Linn Basik arm to render their opinion and I just can't find it.

Does anyone know?

Thanks a whole lot in advance.

Andrew Weintraub
weinhen
theaudiotweak
2,795 posts
 
Well let me flash back 20 years or so..I sold and set up many Linn tables, Lp12 and Ittok. Linn Basik table with Basik arm and many of these combos with Joe Grado cartridges. I had a Lp12 with Ittok and Grado Signatures many many variations and never had an excursion problem on my then high sensitivity speakers and 4 ten inch subs...94db..I never owned the Basik table Grado Signature combo but then I never had any complaints to remind me of a mismatch..So saying all of that what is the effective mass of an Ittok versus a Basik..Also I still use a Grado arm and Signature XTZ on an LP12...Tom
weinhen OP
15 posts
 
I don't know what the parameters ought to be. All I know is that with my current system woofer excursions happened. Previous to the Grado I had a Linn K9 cartridge mounted with no problem evident.

Whether Grado is being straight up or passing the blame, I can't tell. When I inquired what the ideal arm mass should be for the Platinum cartridge, they responded 14-17 g.

Nevertheless, the high pass filter arrived last night. It was breeze to set up. Best of all no woofer pumping and no discernible change in sound.

Andrew
twl
3,251 posts
 
Andrew, glad everything worked out for the best. Enjoy!
weinhen OP
15 posts
 
Thanks for your interest throughout.

Andrew
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