Hi there -
I am in the process of fixing the crossovers of a vintage pair of AR-12 (the original electrolytic capacitors have dried out). I have the schematics of the network, as initially designed by Acoustic Research, so I could simply substitute each cap with another electrolytic cap according to the original schematics. However, I would love to investigate the system integration using the software that we have these days to see if there is any chance to make some marginal improvement. Does anybody have the measurements (frequency and Impedance responses) of the drivers (the frd and zma pictures would be great), so that I can import them into Xsim?
Thanks you!!
Andrea
I am in the process of fixing the crossovers of a vintage pair of AR-12 (the original electrolytic capacitors have dried out). I have the schematics of the network, as initially designed by Acoustic Research, so I could simply substitute each cap with another electrolytic cap according to the original schematics. However, I would love to investigate the system integration using the software that we have these days to see if there is any chance to make some marginal improvement. Does anybody have the measurements (frequency and Impedance responses) of the drivers (the frd and zma pictures would be great), so that I can import them into Xsim?
Thanks you!!
Andrea
The AR-12 speakers had the following drivers: (i) 254mm (10in) Woofer [resonance freq. 26Hz]; (ii) 56mm (2 1/4 in) Midrange [resonance freq. 500Hz]; (iii) 19mm (3/4 in) dome tweeter [resonance freq. 2kHz].
I think the Tweeter have been used in several other models (AR9, AR10 and AR10)
However, the 56mm MidRange driver was unusual and made this speaker rare and rather special.
I think the Tweeter have been used in several other models (AR9, AR10 and AR10)
However, the 56mm MidRange driver was unusual and made this speaker rare and rather special.