P.audio BM-12W drivers

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   Can I use P.audio BM-12W drivers in the MT122? The reason why I`m asking is because I have them in home made boxes, and I`m not happy with the sound. I use the P.audio PA-D72 with the PH-4528 horn, and two BM-12W pr. side.

Toddy

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Toddy Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 07 July 2005 Location: Norway Status: Offline Points: 5	Post Options Post Reply Quote Toddy Report Post Thanks(0) Quote Reply Topic: P.audio BM-12W drivers Posted: 07 July 2005 at 5:42am
	Can I use P.audio BM-12W drivers in the MT122? The reason why I`m asking is because I have them in home made boxes, and I`m not happy with the sound. I use the P.audio PA-D72 with the PH-4528 horn, and two BM-12W pr. side. Toddy

whitehousejamie Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 08 March 2004 Location: United Kingdom Status: Offline Points: 1485	Post Options Post Reply Quote whitehousejamie Report Post Thanks(0) Quote Reply Posted: 07 July 2005 at 5:46am
	Unfortunately, they will not work very well in the MT122. The Qts of the driver is too high, and you need a driver with simular parameters to the SN-12B for use in a mid horn such as the MT122.

Toddy Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 07 July 2005 Location: Norway Status: Offline Points: 5	Post Options Post Reply Quote Toddy Report Post Thanks(0) Quote Reply Posted: 07 July 2005 at 6:09am
	will the fq-response be wrong?

Toddy Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 07 July 2005 Location: Norway Status: Offline Points: 5	Post Options Post Reply Quote Toddy Report Post Thanks(0) Quote Reply Posted: 07 July 2005 at 6:25am
	can someone here design a horn for mid to the BM-12W?

Jimbo Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 07 March 2005 Location: United States Status: Offline Points: 420	Post Options Post Reply Quote Jimbo Report Post Thanks(0) Quote Reply Posted: 07 July 2005 at 8:36am
	Got TS?

Toddy Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 07 July 2005 Location: Norway Status: Offline Points: 5	Post Options Post Reply Quote Toddy Report Post Thanks(0) Quote Reply Posted: 07 July 2005 at 8:42am
	Resonance Frequency Fs 38.0 Hz DC Resistance Re 6.8 Ohm Mechanical Q Factor Qms 2.533 &nbs p; Electrical Q Factor Qes 0.386 &nbs p; Total Q Factor Qts 0.335 &nbs p; BL Factor BL 17.33 T x m Effective Moving Mass Mms 71.44 gr Equivalent Cas air Load Vas 90.27 liters Effective piston area Sd 0.0510 m2 Voice-coil inductance @ 1 KHz Le1k 0.92 mH Half-space efficiency Eff 1.24 % Airgap Height Haq 8.0 mm Voice coil Height Hvc 17.0 mm Voice coil Over-Hung Xmax 4.5 mm Edited by Toddy

DJ Tosco Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 09 June 2005 Location: Italy Status: Offline Points: 20	Post Options Post Reply Quote DJ Tosco Report Post Thanks(0) Quote Reply Posted: 07 July 2005 at 11:15am
	This isn't a good horn driver. This results in a narrow bandwidth and poor mid high extension when horn-loaded. The Fs is too low, Qes too high, and Bl^2/Re isn't very high.