I am looking into making some open baffle speakers using the 15" or 18" MCM pro woofers in either the steel or cast frame variants. Does anyone have any measured ts parameters, as it is comomly known that the manufacturer parameters are often incorrect?
The steel models considered:
18" 55-2984
15" 55-2983
15" 55-3213 4ohm
Cast frame models considered:
18" 55-2964
18" 55-2984
15" 55-2963
15" 55-2983
15" 55-3243 4ohm
Thanks,
Brad
The steel models considered:
18" 55-2984
15" 55-2983
15" 55-3213 4ohm
Cast frame models considered:
18" 55-2964
18" 55-2984
15" 55-2963
15" 55-2983
15" 55-3243 4ohm
Thanks,
Brad
Have purchased several MCM 15, 18 & 21 inch woofers. Not one of them met published specifications. FS, physical dimensions, voice coil size & so on were as advertised. All looked nice, especially for the selling price.
However, the QE and QM values were way off, usually double or in some cases triple the advertised values. As if the magnets were way under charged. Since I play in the world of open baffle, I can work around that. If I had intended to use them in closed box alignments every one of them would have been useless. I contacted MCM on several occasions and they didn't seem to care. Now that Newark owns them, god knows what you are going to get! Caveat Emptor!
However, the QE and QM values were way off, usually double or in some cases triple the advertised values. As if the magnets were way under charged. Since I play in the world of open baffle, I can work around that. If I had intended to use them in closed box alignments every one of them would have been useless. I contacted MCM on several occasions and they didn't seem to care. Now that Newark owns them, god knows what you are going to get! Caveat Emptor!
I have the 8", 10" and 12" MCM cast frame. Qes and Qts almost double. Very disappointing.
MCM 55-2960
MCM 55-2981
MCM 55-2982
MCM 55-2960
MCM 55-2981
MCM 55-2982
Michael,
Thanks for the info. I wish MCM would remeasure them. That 10 inch one you tested, I used to repair some Kustom kpc10 cabs. It worked out well due to decent midrange quality. The cabs were tuned lower to reduce the midbass bump caused by the woofer's high qts though.
Thanks for the info. I wish MCM would remeasure them. That 10 inch one you tested, I used to repair some Kustom kpc10 cabs. It worked out well due to decent midrange quality. The cabs were tuned lower to reduce the midbass bump caused by the woofer's high qts though.
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- Anyone have measured ts specs for mcm 15 & 18 pro woofers?