Sonicraft Subwoofer Drivers from Madisound Speaker Components, Inc.

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SONICRAFT SC-1250
High performance 12" Subwoofer

Madisound is proud to offer these exceptional subwoofers, designed and created in cooperation with KT Sonicraft. The woofers are constructed from materials of the highest quality; the parameters have been carefully chosen. The testing procedure extended over several months until we were convinced that we had products that represent current state of the art loudspeakers.

You may be confident that the Sonicraft drivers will perform well in applications for:
Home Hi-FI Home Theater Powered Subwoofers Autosound

Please take note of the special features we have built into these drivers: air dried coated paper cones, heat sink back plates, long excursion capabilities, SBR rubber surrounds, rigid die cast frames, gold plated terminals, decorative labeling.

Comparable to the NHT1259 in performance. Also see SC12-NRT for even more power!

Features:

Rigid Cast Frame
Coated Pulp Air Dried Paper Cone
SBR High Roll Rubber Surround
Conex Fiber Spider
Vented T-Yoke with Heat Sinks, extended pole piece
Kapton VC Former
Gold Plated Terminals
Decorative Logo
Vented Top Plate on SC-1250

Specifications
	SC-1042 discontinued	SC-1250
Fs	21.4Hz	18.9Hz
Nom. Impedance	4 ohm	4 ohm
Mmd	54.56 Grams	81.35 Grams
Cms	.95109 mm/n	.80425 mm/n
Vas	156.1 Liters	292.4 Liters
Rscc	3.50 W	3.4 W
vcL	0.978 mH @ 1K	1.04 mH @ 1K
Bl	9.227 Tm	8.404 Tm
Qms	6.283	4.868
Qes	0.321	0.503
Qts	0.306	0.456
VC Height	25 mm	34 mm
AG Height	8 mm	8 mm
Xmax	8.5 mm	13.0 mm Peak
SD	0.0340 m2	0.0506 m2
Leap Krm	3.553 m W	2.682 m W
Leap Kxm	19.019 mH	14.734 mH
Leap Erm	0.778	0.802
Leap Exm	0.661	0.697
Surround	SBR Rubber	SBR Rubber
Cone Material	Coated Pulp Paper	Coated Pulp Paper
Magnet	42 oz.	50 oz.
Voice Coil	2 inch	2 inch
Music Power	250 Watts	300 Watts
Sensitivity	91.5 dB 2.83V/1m	91 dB 2.83V/1m
Outside diameter	262 mm (10.3”)	310 mm (12.2”)
Cutout diameter	232 mm (9.13”)	283 mm (11.15”)
Depth	135 mm (5.31”)	160 mm (6.3”)
Price	discontinued	$125.00

Suggested alignment for the SC1250
3.5 cubic foot sealed for F3= 25 to 30 Hz

A 3.5 cubic foot sealed and stuffed enclosure will have a 3dB down point of 30Hz and a Qtc of about 0.8. A lower Qtc can be achieved in a larger enclosure. When used with one of our amplifiers the F3 will be about 25Hz.

This graph is a simulated car response, assuming a 12dB per octave gain. The box volume is 1.5 cubic feet.

608-831-3433