Manual

JUST LISTEN
JUST LISTEN
www.hertzaudiovideo.com
Elettromedia - 62018 Potenza Picena (MC) Italy - T [phone] - F [phone] - www.elettromedia.it
All specications subject to change without notice_12.A
Electro-Acoustic Parameters
D mm 215
Xmax mm 10
Re Ω 3,2
Fs Hz 33
Vas l 39
Mms g 112
Cms mm/N 0,21
BL T m 11,3
Qts - 0,51
Qes - 0,59
Qms - 3,94
Spl dB 90
1. V-cone
®
with polypropylene membrane stiffened with mineral powders.
2. 50 mm pure copper voice coil, wound on aluminium former, for very
good thermal and mechanical capacity.
3. Designed to be used in small sealed or reex box.
4. High excursion butilic rubber surround.
5. Massive magnet structure with forced ventilation system.
6. Spider with integrated lead wires .
7. Very high efciency, superior power handling.
8. Protective grille included for a thrilling look and speaker protection.
Technical Specifications
DS 30.3 500 W
DS 25.3 300 W
DS 300.3 600 W
DS 250.3 400 W
Component Subwoofer
Size mm (in.) 250 (10)
Power handling W peak 400
cont. program 200
Impedance Ω 4
Frequency response Hz 32 ÷ 400
Sensitivity dB/SPL 90
Magnet size mm 120 x 60 x 25
D x d x h (in.) (4.7 x 2.4 x 1)
Total Driver l (cu.in) 1,2 (0.04)
Displacement
Voice Coil ∅ mm (in.) 50 (1.97)
Magnet High Density ux ferrite
Cone Polypropylene with Mica injection
Weight of one kg (lb.) 3,1 (6.8)
component
*X-mech mm (in.) 17 (0.67)
* X-mech: maximum mechanic excursion; indicates the
maximum linear motion range of the speaker in both directions.
DS 25.3
DS 30.3
DS 250.3
DS 300
.3
C
B
A
D
C
B
A
D
C
B
A
D
C
B
A
D
A 306 mm (12 in.)
B 279 mm (11 in.)
C 132 mm (5.2 in.)
D 120 mm (4.7 in.)
A 257 mm (10.2 in.)
B 234 mm (9.2 in.)
C 116 mm (4.6 in.)
D 104 mm (4.1 in.)
A 306 mm (12 in.)
B 279 mm (11 in.)
C 134 mm (5.3 in.)
D 122 mm (4.8 in.)
E 295 mm (11.6 in.)
F 312 mm (12.3 in.)
G 14 mm (0.6 in.)
H 41 mm (1.6 in.)
A 257 mm (10.2 in.)
B 234 mm (9.2 in.)
C 118 mm (4.7 in.)
D 106 mm (4.2 in.)
E 245 mm (9.7 in.)
F 263 mm (10.4 in.)
G 12 mm (0.5 in.)
H 38 mm (1.5 in.)
G
H
F
E
G
H
F
E
DS 300
1k50020010050201010 1kHz
50.0
Ohm
40.0
30.0
20.0
10.0
0.0
DS 250
1k50020010050201010 1kHz
50.0
Ohm
40.0
30.0
20.0
10.0
0.0
DS 30
1k50020010050201010 1kHz
50.0
Ohm
40.0
30.0
20.0
10.0
0.0
DS 25
1k50020010050201010 1kHz
50.0
Ohm
40.0
30.0
20.0
10.0
0.0
GRILLE