spec's for old ACI drivers

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cporada

spec's for old ACI drivers
« on: 11 Jul 2007, 03:27 pm »
Hi everyone
I have a pair of ACI alpha limited speakers (one of ACI's early DIY projects) that I employ as my main speakers and have been slowly tweaking over the years, and am wondering if anyone happens to have a copy of the spec sheets (frequency response, etc.) for the AC5 midrange drivers and AC10 woofers employed in this project, or knows how I could get copies of these.  I've tried searching the web to no avail. Any help would be greatly appreciated.
Thanks in advance
Chris Porada

Mudslide

Re: spec's for old ACI drivers
« Reply #1 on: 11 Jul 2007, 03:37 pm »
Sorry I can't help.  I'd love to get the specs for my set of LX's, as well.  Certainly someone...somewhere...can help us.... :|

Mike Dzurko

Re: spec's for old ACI drivers
« Reply #2 on: 12 Jul 2007, 08:53 pm »
Hi everyone
I have a pair of ACI alpha limited speakers (one of ACI's early DIY projects) that I employ as my main speakers and have been slowly tweaking over the years, and am wondering if anyone happens to have a copy of the spec sheets (frequency response, etc.) for the AC5 midrange drivers and AC10 woofers employed in this project, or knows how I could get copies of these.  I've tried searching the web to no avail. Any help would be greatly appreciated.
Thanks in advance
Chris Porada

The good news is I'm sure we have a set, probably two.  The bad news is that the set here at the office is buried somewhere in the archive boxes for the upcoming move . . .  earliest we'll get at that will be August.  I'm pretty sure I had a set at home as well, but  . . .  yep, they would have been packed for that move as well :roll:   I will keep an eye out, but it might be a bit before I find them . . . Then I'll need a number I can fax them to . . .

cporada

Re: spec's for old ACI drivers
« Reply #3 on: 12 Jul 2007, 09:31 pm »
Hi Mike
Thank you so much.  You may not have to go digging; someone from Audio Asylum posted that he has a bunch of old ACI catalogs laying around at his house. He looked up the AC5 and AC10, and gave me the following values:

AC10 Specs:
Xmax .7 (one-way linear excursion)
Power 150W
Fs 23 Hz
Re 6.1 Ohm
Qms 3.6
Qes .5
Qts .44
Vas 138 liters
Sensitivity 89 dB 1 Watt/1 Meter
Recommended Crossover Zobel 33 mfd cap with 7 Ohm resistor
Recommended for Sealed Enclosure
Box Size 1.69 cu. ft
F3 37 Hz
F10 24 Hz

AC 5:
Power 45 Watts Nominal
Sensitivity 88dB 1 Watt/ 1 Meter
Voice Coil 1 inch
Dcr 5.6 Ohms
Inductance .7 mH
Fs 69 Hz
Mmd 70
BL 4.6
Qms 1.784
Qes .722
Qts .514
Vas 7 liters
Recommended Crossover Zobel 23mfd cap with 7.5 Ohm resistor

Do these sound like they would be the right ones?
Thanks so much
Chris

cporada

Re: spec's for old ACI drivers
« Reply #4 on: 12 Jul 2007, 09:35 pm »
:duh:
Sorry Mike,
My mistake; even if these are the right spec's, a frequency response plot would still be very handy once the dust has settled from ACI's move if that's possible
Thanks so much again
Chris