cartiage for Kenwood L07D genuine tone arm

Jagdzaku,

Even if your phono preamp has a LF filter, an arm/cartridge combo with a native resonance of ~5-6Hz is asking for trouble. At a minimum, it would impair clean tracking and overexercise the suspension in the cartridge, possibly shortening its life.

Anyway, most LF filters do not operate as brickwall filters (unlike the HF filter in redbook CD players). SOME of that LF energy is going to make its way past the filter and into the amplification chain. At best, that adds sonic mud and raises your system sound floor. At worst, it may overstress amps or speakers.

Listen to Johnnyb53, he answered well.

Any and all low frequency "rumble filters" that I've tried robbed the musical presentation of a solid foundation and much of the life of the music.

Those LF filters were mostly for attenuating the "rumble" or motor noise of idler-driven turntables, and not for taming bad arm/cartridge mismatches, which can affect things (such as tracking) long before the result would reach the speakers.

I received it last weekend.
I found its sub weight should be attached to the arm for more choice of cartridges.
Does it change the effective mass of tonearm?

I received turntable last weekend
According to manual,I found the sub weight should be attached to the arm for the cartridge heavier than 9g
Does it change the effective tone arm mass?

09-27-15: Jagdzaku
I received turntable last weekend
According to manual,I found the sub weight should be attached to the arm for the cartridge heavier than 9g
Does it change the effective tone arm mass?

No it doesn't. The effective mass is the mass or weight of the tonearm from its pivot to the headshell.

The extra counterweight enables you to balance a heavier cartridge. The counterweight doesn't add effective mass, but the cartridge does.

You have to factor in the weight of the cartridge plus teh tonearm's effective mass to arrive at the total effective mass.