Like the others, I'm more familiar with the AC-2. The early Accuphase carts were designed by Nakatsuka, who later designed the Monster MCs and now ZYX. Like many other of his carts the internal impedance is 4 ohms and output is 0.2mV. Compliance is 15 cu and VTF is 1.5 to 2.5g with 2.0 recommended. Weight is 9.5g.
The cart has a line contact stylus and response is to 60KHz.
It probably has a sapphire tube cantilever like the AC2, but I'm not sure. Maybe you can tell with some magnification. If you send it to Soundsmith or Andy Kim in Washington State, you can have it evaluated for a nominal fee. They both have excellent reputations and if you're thinking of selling it, that would be a plus.
I would try it on some old records at first. I don't know how it matches up with your arm, but after a few records you might get an idea of the capabilities of the cart. If it's been sitting for 20 years it might take a little longer to loosen up. When it first came out (late '70s) I think the price was similar to the Dynevector price today, maybe slightly less. That's not adjusting for inflation.
Regards,
The cart has a line contact stylus and response is to 60KHz.
It probably has a sapphire tube cantilever like the AC2, but I'm not sure. Maybe you can tell with some magnification. If you send it to Soundsmith or Andy Kim in Washington State, you can have it evaluated for a nominal fee. They both have excellent reputations and if you're thinking of selling it, that would be a plus.
I would try it on some old records at first. I don't know how it matches up with your arm, but after a few records you might get an idea of the capabilities of the cart. If it's been sitting for 20 years it might take a little longer to loosen up. When it first came out (late '70s) I think the price was similar to the Dynevector price today, maybe slightly less. That's not adjusting for inflation.
Regards,