Orion Car Audio HP10D4 E C I F I C At I O N S, C o m m e n d e d E n c l o s u r e s, HP12D4

S P E C I F I C AT I O N S
Directed Part Number	27202	27207	27212	27217
Model Number	HP10D2	HP10D4	HP12D2	HP12D4
Fs (free-air resonance)	31.42	33.14	29.46	27.75
Vas (equivalent compliance, cu. ft.)	0.62	0.56	1.79	1.78
Vas (equivalent compliance, liters)	17.42	18	50.72	50.44
Qms (Q, mechanical)	5.57	5.31	5.24	4.99
Qes (Q, electrical)	0.59	0.63	0.58	0.63
Qts (total driver Q)	0.53	0.57	0.52	0.56
Re (DC resistance, ohms)	3.8	6.85	3.8	6.8
Z (nominal impedance, ohms)	4	8	4	8
Le (inductance, mh)	2.01	2.79	2.01	2.85
Efficiency (2.83v/1M, dB)	84.79	82.72	87.25	84.94
Xmax (one-way linear excursion, in.)	0.55	0.55	0.55	0.55
Xmax (one-way linear excursion, mm)	14	14	14	14
Power (continuous power handling)*	500 watts	500 watts	500 watts	500 watts
Peak power handling (music,)**	1000 watts	1000 watts	1000 watts	1000 watts
Mms (total moving mass, grams)	205	182	247	226
Cms (mechanical compliance, µM/N)	125	127	147	146
BI (motor strength, Tesla-M)	16.22	20.1	16.43	20.59
Sd (effective radiating area, sq. m.)	0.033	0.033	0.050	0.050
Sd (effective radiating area, sq. in.)	51.15	51.15	77.5	77.5
Frequency range (Hz)	40-2.5k	40-2.5k	30-2.5k	30-2.5k
Energy Bandwidth Product (EBP)	53	53	46	44
D r i v e r P h y s i c a l D i m e n s i o n
Speaker Displacement (cu. ft.)		0.077
	0.077		0.096	0.096
Mounting hole diameter (in.)	9	9	11	11
Mounting depth (in.)	6.5	6.5	7	7
Basket diameter (in.)	10.25	10.25	12.35	12.35
R e c o m m e n d e d E n c l o s u r e s
Typical Sealed Enclosure (cu. ft.)	0.55	0.65	1.25	1.35
SPL Sealed Enclosure (cu. ft.)**	0.35	0.35	0.65	0.55
Low Qtc Sealed Enclosure (cu. ft)*	0.65	0.65	2.05	2.15
Vented Enclosure (cu. ft.)***	0.95	0.95	1.35	1.45
Port Tuning Frequency (Hz)	44	44	40	40
Port Diameter (inside in.)	3	3	4	4
Equivalent Square Port (in.)	2.65 x 2.65	2.65 x 2.65	3.54 x 3.54	3.54 x 3.54
Port Length (in.)	8	8	12.5	11.5

1.	Parameters listed are for conventional applications only, for further help please call Tech Audio Support	*	For SQ (sound quality applications) amps should be between
2.	Recommend enclosure are NET Box Volumes, speaker and port displacement are NOT calculated into the		Pe and Peak power ratings.
volume of the enclosure, you will need to add these volumes to calculate GROSS volume for the enclosure.		**	SPL usage only! Not rated for continuous use at this level.
3.	The approximate volume of air displaced by the port can be calculated by using the square port area (H x W)	***	Sub-sonic filters should always be used and adjusted specifically
	times the port length and then divide by 1728 to get cubic feet.		for vented box designs.
4.	Please call Technical Audio support for further specifications and information: 1-800-876-0800 ext. 2032

Specifications subject to change without notice © 2005 Directed Electronics, Vista, CA.—all rights reserved