MTX Audio specifications T81544A Technical Data Report, =0.5, =0.6

T81544A Technical Data Report

Thunder 8000A 15" Dual 4 Ohm Subwoofer

	100	Sealed and Vented Frequency Response										100	Bandpass Frequency Response
	97											97
	94											94
1W/1m	91										1W/1m	91
	88											88
(dB)	85										(dB)	85
	82											82
SPL							2.5 FT^3 Vented				SPL							2.1 FT^3 Bandpass
	79											79
	76						1.25 FT^3 Sealed					76						1.68 FT^3 Bandpass
	73											73
	70											70
	10	20	30	40	50	60	70	80	90	100		10	20	30	40	50	60	70	80	90	100
			Frequency (Hz)											Frequency (Hz)

Sealed Enclosures - Gabinetes Sellados - Caissons Clos - Geschlossene Gehäuse

Volumen del gabinete - Volume du caisson - Gehäusevolumen -Enclosure Volume		1.25 Ft^3	(35.4 l)	1.50 Ft^3	(42.5 l)	1.75 Ft^3	(49.6 l)	2.00 Ft^3	(56.6 l)	2.25 Ft^3	(63.7 l)
	F3	51 Hz		48 Hz		46 Hz		46 Hz		45 Hz
Ondulación - Bosse - Welligkeit - Ripple		.03dB		.01dB		.00dB		.00dB		.00dB
	Qtc	.89		.82		.77		.73		.69
Volumen neto - Volume net - Nettovolumen -Net Volume		1.11 Ft^3	(31.5 l)	1.36 Ft^3	(38.6 l)	1.61 Ft^3	(45.7 l)	1.86 Ft^3	(52.8 l)	2.11 Ft^3	(59.9 l)
Volumen del altavoz - Volume occupé par le sub - Subwoofervolumen -Driver Volume		.14 Ft^3	(3.9 l)	.14 Ft^3	(3.9 l)	.14 Ft^3	(3.9 l)	.14 Ft^3	(3.9 l)	.14 Ft^3	(3.9 l)
Nivel de presión sonora de excursión limitada - Pression acoustique maxi limitée par la course - Auslenkungsbegrenzter Schallpegel Excursion-	Limited SPL	118dB		117dB		117dB		117dB		117dB
Potencia de excursión limitada - Puissance maxi limitée par la course - Auslenkungsbegrenzte Leistung -Excursion Limited Power		500 Watts		500 Watts		500 Watts		500 Watts		500 Watts

Vented Enclosures - Gabinetes ventilados - Caissons Bass Reflex - Ventilierte Gehäuse

Volumen del gabinete - Volume du caisson - Gehäusevolumen -Enclosure Volume		2.00 Ft^3	(56.6 l)	2.50 Ft^3	(70.8 l)	3.00 Ft^3	(85.0 l)	3.50 Ft^3	(99.1 l)	4.00 Ft^3	(113.3 l)
Dimensiones de las aberturas de ventilación - Dimensions de l’évent - Entlüftungsabmessungen -Vent Dimensions		4”x10”		4”x9”		4”x9.25”		4”x8”		4”x8”
	F3	41 Hz		36 Hz		32 Hz		31 Hz		29 Hz
Frecuencia de sintonización - Fréquence d’accord - Resonanzfrequenz -Tuning Frequency		38 Hz		35 Hz		32 Hz		31 Hz		29 Hz
Ondulación - Bosse - Welligkeit - Ripple		1.28dB		1.20dB		.81dB		.78dB		.45dB
Volumen neto - Volume net - Nettovolumen -Net Volume		1.79 Ft^3	(50.6 l)	2.30 Ft^3	(65.0 l)	2.79 Ft^3	(79.1 l)	3.30 Ft^3	(93.6 l)	3.80 Ft^3	(107.7 l)
Volumen del altavoz - Volume occupé par le sub - Subwoofervolumen -Driver Volume		.14 Ft^3	(3.9 l)	.14 Ft^3	(3.9 l)	.14 Ft^3	(3.9 l)	.14 Ft^3	(3.9 l)	.14 Ft^3	(3.9 l)
Volumen de las aberturas de ventilación - Volume de l'évent - Entlüftungsvolumen -Vent Volume		.08 Ft^3	(2.2 l)	.07 Ft^3	(1.9 l)	.07 Ft^3	(2.0 l)	.06 Ft^3	(1.7 l)	.06 Ft^3	(1.7 l)
Nivel de presión sonora de excursión limitada - Pression acoustique maxi limitée par la course - Auslenkungsbegrenzter Schallpegel Excursion-	Limited SPL	120dB		119dB		118dB		118dB		118dB
Potencia de excursión limitada - Puissance maxi limitée par la course - Auslenkungsbegrenzte Leistung -Excursion Limited Power		500 Watts		500 Watts		500 Watts		500 Watts		500 Watts

Single Reflex Bandpass Enclosures - Gabinetes reflectores sencillos de paso de banda - Caissons Bandpass à une chambre reflex - Bassreflex-Bandpassgehäuse											s=0.5
Volumen del gabinete -Volume du caisson - Gehäusevolumen -Enclosure Volume		1.45 Ft^3	(41.1 l)	1.55 Ft^3	(43.9 l)	1.68 Ft^3	(47.6 l)	1.85 Ft^3	(52.4 l)	2.08 Ft^3	(58.9 l)
Paso de banda - Réponse en fréquence - Bandpass -Bandpass		52 - 147		47 - 142		42 - 136		37 - 131		32 - 126
Amplificación del paso de banda - Gain provoqué pas le caisson - Bandpassverstärkung -Bandpass Gain		3.1dB		2.0dB		.9dB		-.4dB		-1.9dB
Dimensiones de las aberturas de ventilación - Dimensions de l’évent - Entlüftungsabmessungen -Vent Dimensions		(2)4”x7.5”		(2)4”x9.25”		(2)4”x11.25”		(2)4”x14”		(2)4”x17.5”
Frecuencia de sintonización - Fréquence d’accord - Resonanzfrequenz -Tuning Frequency		89 Hz		83 Hz		77 Hz		71 Hz		65 Hz
Ondulación - Bosse - Welligkeit - Ripple		1.07dB		1.10dB		1.14dB		1.17dB		1.21dB
Volumen sellado - Volume du caisson clos - Geschlossenes Volumen -Sealed Volume		.47 Ft^3	(13.4 l)	.55 Ft^3	(15.5 l)	.64 Ft^3	(18.2 l)	.77 Ft^3	(21.8 l)	.94 Ft^3	(26.7 l)
Volumen ventilado - Volume du caisson reflex - Ventiliertes Volumen -Vented Volume		.73 Ft^3	(20.6 l)	.73 Ft^3	(20.6 l)	.73 Ft^3	(20.6 l)	.73 Ft^3	(20.6 l)	.73 Ft^3	(20.6 l)
Volumen del altavoz - Volume occupé par le sub - Subwoofervolumen -Driver Volume		.14 Ft^3	(3.9 l)	.14 Ft^3	(3.9 l)	.14 Ft^3	(3.9 l)	.14 Ft^3	(3.9 l)	.14 Ft^3	(3.9 l)
Volumen de las aberturas de ventilación - Volume de l'évent - Entlüftungsvolumen -Vent Volume		.11 Ft^3	(3.1 l)	.14 Ft^3	(4.0 l)	.17 Ft^3	(4.9 l)	.22 Ft^3	(6.2 l)	.28 Ft^3	(7.8 l)
Nivel de presión sonora de excursión limitada - Pression acoustique maxi limitée par la course - Auslenkungsbegrenzter Schallpegel Excursion-	Limited SPL	121dB		120dB		119dB		118dB		116dB
Potencia de excursión limitada - Puissance maxi limitée par la course - Auslenkungsbegrenzte Leistung -Excursion Limited Power		500 Watts		500 Watts		500 Watts		500 Watts		500 Watts

Single Reflex Bandpass Enclosures - Gabinetes reflectores sencillos de paso de banda - Caissons Bandpass à une chambre reflex - Bassreflex-Bandpassgehäuse											s=0.6
Volumen del gabinete - Volume du caisson - Gehäusevolumen -Enclosure Volume		1.83 Ft^3	(51.8 l)	1.95 Ft^3	(55.2 l)	2.10 Ft^3	(59.5 l)	2.30 Ft^3	(65.1 l)	2.60 Ft^3	(73.6 l)
Paso de banda - Réponse en fréquence - Bandpass -Bandpass		51 - 126		48 - 121		43 - 116		38 - 110		33 - 105
Amplificación del paso de banda - Gain provoqué pas le caisson - Bandpassverstärkung -Bandpass Gain		4.4dB		3.3dB		2.1dB		.8dB		-.7dB
Dimensiones de las aberturas de ventilación - Dimensions de l’évent - Entlüftungsabmessungen -Vent Dimensions		(2)4”x5.5”		(2)4”x7”		(2)4”x8.75”		(2)4”x11”		(2)4”x14.25”
Frecuencia de sintonización - Fréquence d’accord - Resonanzfrequenz -Tuning Frequency		82 Hz		76 Hz		71 Hz		65 Hz		59 Hz
Ondulación - Bosse - Welligkeit - Ripple		.38dB		.39dB		.41dB		.42dB		.44dB
Volumen sellado - Volume du caisson clos - Geschlossenes Volumen -Sealed Volume		.57 Ft^3	(16.1 l)	.66 Ft^3	(18.8 l)	.79 Ft^3	(22.3 l)	.95 Ft^3	(27.0 l)	1.19 Ft^3	(33.8 l)
Volumen ventilado - Volume du caisson reflex - Ventiliertes Volumen -Vented Volume		1.05 Ft^3	(29.6 l)	1.05 Ft^3	(29.6 l)	1.05 Ft^3	(29.6 l)	1.05 Ft^3	(29.6 l)	1.05 Ft^3	(29.6 l)
Volumen del altavoz - Volume occupé par le sub - Subwoofervolumen -Driver Volume		.14 Ft^3	(3.9 l)	.14 Ft^3	(3.9 l)	.14 Ft^3	(3.9 l)	.14 Ft^3	(3.9 l)	.14 Ft^3	(3.9 l)
Volumen de las aberturas de ventilación - Volume de l'évent - Entlüftungsvolumen -Vent Volume		.08 Ft^3	(2.2 l)	.10 Ft^3	(2.9 l)	.13 Ft^3	(3.7 l)	.17 Ft^3	(4.8 l)	.22 Ft^3	(6.3 l)
Nivel de presión sonora de excursión limitada - Pression acoustique maxi limitée par la course - Auslenkungsbegrenzter Schallpegel Excursion-	Limited SPL	122dB		121dB		119dB		118dB		117dB
Potencia de excursión limitada - Puissance maxi limitée par la course - Auslenkungsbegrenzte Leistung -Excursion Limited Power		500 Watts		500 Watts		500 Watts		500 Watts		500 Watts
One Year Limited Warranty

MTX Loudspeakers purchased in the United States from an authorized MTX dealer are guaranteed against defects in material and workmanship for a period of ONE YEAR from the date purchased by the end user, and limited to the original retail purchaser of the product. Product found to be defective during that period will be repaired or replaced by MTX at no charge. This warranty is void if it is determined that unauthorized parties have attempted repairs or alterations of any nature. Warranty does not extend to cosmetics or finish. Before presuming a defect is present in the product, be certain that all related equipment and wiring is functioning properly. MTX disclaims any liability for other incurred damages resulting from product defects. Any expenses incurred in the removal and reinstallation of products are not covered by this warranty. MTX's total liability will not exceed the purchase price of the product. If a defect is present, your authorized MTX dealer may be able to effect repairs. Proof of purchase is required when requesting service, so please retain your sales receipt and take a moment to register your warranty on line @ www.mtx.com.