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RE: Anyone know where to find out the cartridge 'rise time'?

Back in the day ('70s) some magazines like Stereo Review and Hi-Fidelity published square wave results with test reports. Below is a link for Popular Electronics from '77. On page 34 Julian Hirsch tests the Stanton 881 cart. The test continues on page 38 where you'll find a scope photo of square wave response.

The photo look pretty good IMO, especially for a cart with med inductance - 450mH. It's true that many of todays HO carts have higher inductance than the 881, but not all. The Clearaudio MMs are 400mH - same as the AT95 (AT is the OEM), and the 150MLX is 350mH. Some past AT models were as low as 85mH. Some other brands were already mentioned.

Electrical resonance (tank circuit) will lower mechanical resonance, but that affect is already be reflected in the frequency response which is plotted under load. So if a MM has -3dB response to 50KHz, how is this different than a MC that has response to 50KHz ?

Transient response is a result of tip mass (effective mass) mostly, and the cantilever is the largest contributor. A 6mm boron rod w/nude tip will have a high frequency resonance of approx. 27KHz. Response typically will be to 50KHz. A few carts with short or no cantilever and a very few with tubular boron might have response approaching 100KHz and even beyond.
I have an old Genesis 1000 with response past 100KHz. The sound is remarkable for its lack of colorations, but of course that's not what most people want. Colorations that compliment systems and taste are usually preferred, and why not?

neo
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