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GZHW 25SPL
GROUND ZERO GmbH – Erlenweg 25, 85658 Egmating, Germany
GroundZeroAudioCom
www.ground-zero-audio.com
info@ground-zero-audio.com
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TECHNICAL SPECIFICATIONS
Product name GZHW 25SPL
Product type Subwoofer driver
Outer diameter 272 mm / 10.71“
Mounting diameter 240 mm / 9.45“
Mounting depth 155 mm / 6.10“
Magnet dimension (3x) 170 x 20 mm
Total weight 10.9 kg
Voice coil diameter 63 mm / 2.5“ round wire
Voice coil winding height
Voice coil wire material Copper
Voice coil former material Aluminum
Top plate / height 10 mm / 0.39“
Linear excursion (one direction) 14 mm / 0.55“
Effective Xmax 45 mm / 1.77“
Top Plate and T-Yoke color Black machined
Basket material Aluminum cast
Basket color Yellow
Spider material (2x) progressive POLYCOT
Surround type High-roll sandwich foam
Cone material Reinforced paper
Dustcap material Convex IMPP with 3-D logo
Magnet cover PVC
35 mm / 1.38“
Gasket material Foam
Terminal type Black-chromed push terminal
Power handling 2500 WSPL (1200 WRMS)*
Impedance 2x 1 ohms
R
e (Serial)
R
es
F
S
Q
ms
Q
es
Q
ts
Rms 8.805 kg/s
Cms 0.054 mm/N
Mms 267.6 gr
BL 16.1 N/A
SPL (1w/1m) 83.0 dB
V
AS
L
e
S
d
Recommended frequency range 10 – 100 Hz
Recommended amplifier power 800 – 2500 WRMS (
* max. power handling is only for recommended enclosure applicable
1.92 ohms
29.45 ohms
41.8 Hz
7.98
0.519
0.487
8.53 L / 0.3 cu.ft
1.92 mH
333,29 cm²
@ 2 / 0.5 ohms)
A
E
A 272 mm / 10.71“
C
B
C 155 mm / 6.1“
D 175 mm / 6.89“
E 10 mm / 0.39“
240 mm / 9.45“
D
B
GROUND ZERO GmbH – Erlenweg 25, 85658 Egmating, Germany
GroundZeroAudioCom
www.ground-zero-audio.com
info@ground-zero-audio.com
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POWER RECOMMENDATION
WIRING OPTIONS
GROUND ZERO GmbH – Erlenweg 25, 85658 Egmating, Germany
GroundZeroAudioCom
www.ground-zero-audio.com
info@ground-zero-audio.com
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ENCLOSURE RECOMMENDATION
Bassreflex /
(Grün / green)
Port (dimensions)
Portlänge / port length
F3(-3 dB)
Bandpass 4thorder
(Blau / blue)
Port (diameter)
Portlänge / port length
Fb(tuning frequency)
Bandbreite /
bandwidth (-3dB)
Geschlossen /
(rot / red)
Qtc / F3(-3 dB)
Geschlossen /
(violett / violet)
Qtc / F3(-3 dB)
vented
sealed
sealed
40 Liter netto / 1.412 cu.ft. net
Recommended enclosure !
100 mm / 4”
250 mm / 9.84”
34 Hz
14 Liter netto geschlossen / 0.49 cu.ft. net sealed
28 Liter netto ventiliert / 0.99 cu.ft. net vented
limited frequency range
100 mm / 4”
180 mm / 7.09”
58 Hz
37 – 87 Hz
20 Liter netto / 0.706 cu.ft. net
0.58 / 63 Hz
7 Liter netto / 0.247 cu.ft. net
Minimum enclosure volume
0.73 / 60 Hz
GROUND ZERO GmbH – Erlenweg 25, 85658 Egmating, Germany
GroundZeroAudioCom
www.ground-zero-audio.com
info@ground-zero-audio.com
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