BLT1	BL5	BL65	BL8	BL10	BL5C	BL65C	BL8C
Tweeter	Midrange	Midwoofer	Midwoofer	Subwoofer	Component	Component	Component	Speaker Type
80	80	140	140	150	100	175	175	Power Handling ₁
2.5K-25k	55-6000	32-4000	20-4000	20-2000	32-4000	32-25k	20-25k	Frequency Range (Hz)
1800	68	41	29	32	*	*	*	Resonant Frequency (FS)
92	88.1	91.4	92.5	92.5	tba	92	93	Sensitivity dB 2.83V/1m
8	4	4/8	4/8	4/8	4	4	4	Impedence
6.8	3.5	2.8	3.1	3.4	*	*	*	Re - DC Resistance
*	tba	5mm	5mm	6mm	tba	5mm	5mm	Xmax - One direction
*	7.935	9.366	52.368	56.833	7.935	9.366	52.368	Vas - Liters
*	15.27	17.72	29.47	50.27	15.27	17.72	29.47	Piston Area - Square inches (SD)
*	1.224	.323	.379	.440	1.224	.323	.379	QES
*	4.239	5.54	6.60	8.095	4.239	5.54	6.60	QMS
*	.950	.305	.358	.418	.950	.305	.358	QTS - Total Q
*	.20	.35	.60	1.0	.20	.35	.60	Minimum Recommended Enclosure _2,4
1.813	4.6875	5.690	7.080	9.125	4.6875	5.690	7.080	Cutout Diameter (Decimal Inches)
1 13/16	4 11/16	5 11/16	7 5/64	9 1/8	4 11/16	5 11/16	7 5/64	Cutout Diameter (Fractional Inches)
0.6	2.25	2.9	3.4	4.4	2.25	2.9	3.4	Mounting Depth Inches ₃


Footnotes:
1	Assumes unclipped signals
2	Tailor this to your needs
3	Speakers with vented pole need 1 inch minimum clearance for cooling
4	For ported enclosures: Add ~20% volume and tune accordingly.
*	Not Applicable

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All specifications subject to change without notice