DS 30.3

300 (12) mm (in.) | Subwoofer | 1000 W | 4 Ohm | Single Voice Coil

Hertz DS 30.3 car audio subwoofers box offers high efficiency and exceptional power handling. Equipped with a polypropylene membrane and butyl rubber surround, they provide high excursion with minimal distortion. An efficient cooling system ensures optimal heat dissipation, increasing their reliability.
The Dieci subwoofers are designed for use in compact sealed or reflex enclosures; thanks to an exclusive, carefully thought-out design, they can be used in any installation.

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Technical Specs
Size mm (in.)	300 (12)
Power Handling - Continuous W	250
Power Handling - Peak W	1000
Impedance Ohm	4
Voice Coil Type	single
No Filter Component	Subwoofer
Voice Coil Ø	38 (1.5)
Frequency Response Hz	28 ÷ 300
Magnet size D x d x h mm (in.)	115 x 50 x 25 D x d x h (in.) (4.5 x 2 x 1)
Weight of one component kg (lb.)	4 (8.8)
Magnet	High density flux ferrite
Cone	Polypropylene with Mica injection
Xmech mm (in.)	9

Electro-acoustic Specs
D mm	258
Xmax mm	9
Re Ohm	3,3
Fs Hz	32
Le mH	2,2
Vas I	70
Mms g	133
Cms mm/N	0,18
BL T*m	11,2
Qts	0,62
Qes	0,71
Qms	5,14
Spl dB	91

Physical Specs

A	306 mm	12 in.
B	279 mm	11 in.
C	132 mm	5.2 in.
D	120 mm	4.7 in.

Frequency response

Enclosures

SEALED BOX

Box Tech Data - Sealed Box
W mm(in.)	320 (12.6)
H mm(in.)	320 (12.6)
D mm(in.)	205 (8.07)
Vcc l(cu.in.)	21 (1281)
Fc Hz	56

REFLEX BOX

Box Tech Data - Reflex Box
W mm(in.)	340 (13.39)
H mm(in.)	320 (12.6)
D mm(in.)	220 (8.66)
Vb l(cu.in.)	23,9 (1461)
Fb Hz	40/strong>
Ø mm(in.)	82 (3.2)
L mm(in.)	175 (6.9)