GZHW 20SPL

1500 Watts SPL

8″ high quality SPL subwoofer with alumiunum cast basket and reinforced paper cone

8″ high quality SPL subwoofer
Klippel® optimized
Reinforced paper cone
Long stroke compound surround
Solid aluminum cast basket
63 mm / 2.5″ copper voice coil
2-layer Polycot spider
IMPP dust cap with 3D structure logo

Model	High-Quality SPL Subwoofer
Diameter	20 cm / 8″
Power handling (RMS/SPL)	700 / 1500 Watts
Impedance	2x 1 Ohms
Efficiency	80 dB
Power recommendation	500 -1500 Watts
Voice coil	63 mm / 2.5″ copper
Cone	Reinforced paper
Max. Excursion (Xmax)	40 mm
Mounting depth	145 mm
Resonance frequency (Fs)	38.3 Hz
Damping ratio (Qts)	0.381
Equiv. air volume (Vas)	4.77 L

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GZUW 8SQX

22. November 2022 / Ground Zero Audio

Magnifier

GZUW 8SQX

20 cm / 8″ sound quality subwoofer

300 Watts RMS

8″ sound quality subwooferwith aluminum cast basket ans pressed paper cone

8″ sound quality subwoofer
Klippel® optimized
Scooped and pressed paper cone
U-shape foam surround
Solid aluminum cast basket
50 mm / 2″ copper voice coil
Audiophile Polycot spider
Coated paper dust cap

Model	High-Quality SQ Subwoofer
Diameter	20 cm / 8″
Power handling (RMS)	300 Watts
Impedance	2x 2 Ohms
Efficiency	83.5 dB
Power recommendation	200 – 400 Watts
Voice coil	50 mm / 2″ copper
Cone	Scooped paper
Max. Excursion (Xmax)	20 mm
Mounting depth	108 mm
Resonance frequency (Fs)	56.4 Hz
Damping ratio (Qts)	0.68
Equiv. air volume (Vas)	5.9 L

Data Sheet

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GZIW 250

22. November 2022 / Ground Zero Audio

Magnifier

GZIW 250

25 cm / 10″ high quality subwoofer

250 Watts RMS

10″ high quality subwoofer with solid 3D HQPP cone

10″ subwoofer
Klippel® optimized
3D HQPP cone
Long stroke rubber surround
Solid aluminum cast basket
50 mm / 2″ copper voice coil
Polycot spider
IMPP dust cap with 3D structure logo

Model	High-Quality subwoofer
Diameter	25 cm / 10″
Power Handling (RMS)	250 Watts
Impedance	4 Ohms
Efficiency	87 dB
Power recommendation	200 – 300 Watts
Voice coil	50 mm / 2″ copper
Membran	HQPP cone with 3D-structure
Max. Excursion (Xmax)	25 mm / 0.98″
Mounting depth	129 mm / 5.08″
Resonance frequency (Fs)	27 Hz
Overall quality (Qts)	0.44
Equiv. air volume (Vas)	49.3 L / 1.74 cu.ft.

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GZIW 250X-II

22. November 2022 / Ground Zero Audio

Magnifier

GZIW 250X-II

25 cm / 10″ subwoofer

250 Watts RMS

10″ high quality subwoofer with solid IMPP cone

10″ subwoofer
Klippel® optimized
IMPP cone
Long stroke rubber surround
Solid aluminum cast basket
50 mm / 2″ copper voice coil
Polycot spider
IMPP dust cap with 3D structure logo

Model	High-Quality subwoofer
Diameter	25 cm / 10″
Power Handling (RMS)	250 Watts
Impedance	4 Ohms
Efficiency	87 dB
Power recommendation	200 – 300 Watts
Voice coil	50 mm / 2″ copper
Max. Excursion (Xmax)	20 mm / 0.79″
Mounting depth	129 mm / 5.08″
Equiv. air volume (Vas)	35 L / 1.24 cu.ft.

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GZUW 8SQ-D2

22. November 2022 / Ground Zero Audio

Magnifier

GZUW 8SQ-D2

20 cm / 8″ sound quality subwoofer

300 Watts RMS

8″ sound quality subwooferwith aluminum cast basket ans pressed paper cone

8″ sound quality subwoofer
Klippel® optimized
Scooped and pressed paper cone
U-shape foam surround
Solid aluminum cast basket
50 mm / 2″ copper voice coil
Audiophile Polycot spider
Coated paper dust cap

Model	High-Quality SQ subwoofer
Diameter	20 cm / 8″
Power Handling (RMS)	300 Watts
Impedance	2x 2 Ohms
Efficiency	83 dB
Power recommendation	200 – 400 Watts
Voice coil	50 mm / 2″ copper
Cone	Scooped paper
Max. Excursion (Xmax)	20 mm / 0.79″
Mounting Ø	181 mm / 7.13″
Mounting depth	108 mm / 4.25″
Resonance frequency (Fs)	56.9 Hz
Damping ratio (Qts)	0.69
Equiv. air volume (Vas)	4.8 L / 0.17 cu.ft.

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GZIW 10SPL

22. November 2022 / Ground Zero Audio

Magnifier

GZIW 10SPL

25 cm / 10″ high quality SPL subwoofer

700 Watts SPL

10″ high quality SPL subwoofer with reinforced paper cone

10″ high quality SPL subwoofer
Klippel® optimized
Reinforced paper cone
Long stroke compound surround
Solid aluminum cast basket
63 mm / 2.5″ copper voice coil
2-layer Polycot-Conex spider
IMPP dust cap with 3D structure logo

Model	High-Quality SPL Subwoofer
Diameter	25 cm / 10″
Power handling (RMS/SPL)	500 / 700 Watts
Impedance	2x 2 Ohms
Efficiency	84 dB
Power recommendation	400 – 700 Watts
Voice coil	63 mm / 2.5″ copper
Cone	Reinforced paper
Max. Excursion (Xmax)	25 mm
Mounting depth	147 mm
Resonance frequency (Fs)	40.8 Hz
Damping ratio (Qts)	0.62
Equiv. air volume (Vas)	22.8 L

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GZHW 25X

22. November 2022 / Ground Zero Audio

Magnifier

GZHW 25X

25 cm / 10″ high quality subwoofer

600 Watts RMS

10″ high quality subwoofer with alumiunum cast basket and aluminum cone

10″ high quality subwoofer
Klippel® optimized
Aluminum cone
Rubber surround
Solid aluminum cast basket
50 mm / 2″ round wire voice coil
Conex spider
Aluminum dust cap

Model	High-Quality Street Subwoofer
Diameter	25 cm / 10″
Power handling (RMS/max.)	600 / 900 Watts
Impedance	2x 1 Ohms
Efficiency	84 dB
Power recommendation	400 – 800 Watts
Voice coil	50 mm / 2″ copper
Cone	Aluminum
Max. Excursion (Xmax)	25 mm
Mounting depth	149 mm
Resonance frequency (Fs)	27.1 Hz
Damping ratio (Qts)	0.37
Equiv. air volume (Vas)	27 L

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GZRW 8XSPL

22. November 2022 / Ground Zero Audio

Magnifier

GZRW 8XSPL

20 cm / 8″ high quality SPL subwoofer

1000 Watts SPL

8″ high quality SPL subwoofer with reinforced paper cone

8″ high quality SPL subwoofer
Klippel® optimized
Reinforced paper cone
Long stroke compound surround
Resonance free steel basket
50 mm / 2″ copper voice coil
Polycot spider
IMPP dust cap with 3D structure logo

Model	High-Quality SPL subwoofer
Diameter	20 cm / 8″
Power handling (RMS/SPL)	500 / 1000 Watts
Impedance	2x 2 Ohms
Efficiency	84.6 dB
Power recommendation	400 – 1000 Watts
Voice coil	50 mm / 2″ copper
Cone	Reinforced paper
Max. Excursion (Xmax)	22 mm / 0.866″
Mounting Ø	182 mm / 7.17″
Mounting depth	133 mm / 5.24″
Resonance frequency (Fs)	45.8 Hz
Overall quality (Qts)	0.36
Equiv. air volume (Vas)	7.4 L / 0.26 cu.ft.

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GZRW 6XSPL

22. November 2022 / Ground Zero Audio

Magnifier

GZRW 6XSPL

16.5 cm / 6.5″ high quality SPL subwoofer

700 Watts SPL

6.5″ high quality SPL subwoofer with reinforced paper cone

6.5″ high quality SPL subwoofer
Klippel® optimized
Reinforced paper cone
Long stroke compound surround
Resonance free steel basket
50 mm / 2″ copper voice coil
Polycot spider
IMPP dust cap with 3D structure logo

Model	High-Quality SPL subwoofer
Diameter	16.5 cm / 6.50″
Power handling (RMS/SPL)	350 / 700 Watts
Impedance	2x 2 Ohms
Efficiency	79 dB
Power recommendation	250 – 700 Watts
Voice coil	50 mm / 2″ copper
Cone	Reinforced paper
Max. Excursion (Xmax)	22 mm / 0.866″
Mounting Ø	147 mm / 5.79″
Mounting depth	99 mm / 3.90″
Resonance frequency (Fs)	49.5 Hz
Overall quality (Qts)	0.621
Equiv. air volume (Vas)	2.2 L / 0.078 cu.ft.

GZRW 6XSPL Read More »

GZRW 10XSPL

22. November 2022 / Ground Zero Audio

Magnifier

GZRW 10XSPL

25 cm / 10″ high quality SPL subwoofer

1200 Watts SPL

10″ high quality SPL subwoofer with reinforced paper cone

10″ high quality SPL subwoofer
Klippel® optimized
Reinforced paper cone
Long stroke compound surround
Solid aluminum cast basket
63 mm / 2.5″ copper voice coil
2-layer Polycot spider
IMPP dust cap with 3D structure logo

Model	High-Quality SPL Subwoofer
Diameter	25 cm / 10″
Power handling (RMS/SPL)	800 / 1200 Watts
Impedance	2x 2 Ohms
Efficiency	82 dB
Power recommendation	600 – 1200 Watts
Voice coil	63 mm / 2.5″ copper
Cone	Reinforced paper
Max. Excursion (Xmax)	30 mm
Mounting depth	150 mm
Resonance frequency (Fs)	44.3 Hz
Damping ratio (Qts)	0.749
Equiv. air volume (Vas)	9.0 L

GZRW 10XSPL Read More »

GZHW 25XSPL-D2

22. November 2022 / Ground Zero Audio

Magnifier

GZHW 25XSPL-D2

25 cm / 10″ high quality SPL subwoofer

2500 Watts SPL

10″ high quality SPL subwoofer with alumiunum cast basket and reinforced paper cone

10″ high quality SPL subwoofer
Klippel® optimized
Reinforced paper cone
Long stroke compound surround
Solid aluminum cast basket
63 mm / 2.5″ copper voice coil
2-layer Polycot spider
IMPP dust cap with 3D structure logo

Model	High-Quality SPL subwoofer
Diameter	25 cm / 10″
Power handling (RMS/SPL)	1200 / 2500 Watts
Impedance	2x 2 Ohms
Efficiency	83 dB
Power recommendation	800 – 2500 Watts
Voice coil	63 mm / 2.5″ Copper
Cone	Reinforced paper
Max. Excursion (Xmax)	45 mm / 1.77″
Mounting Ø	238 mm / 9.37″
Resonance frequency (Fs)	41.8 Hz
Overall quality (Qts)	0.487
Equiv. air volume (Vas)	8.53 L / 0.30 cu.ft.

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GZHW 25SPL

22. November 2022 / Ground Zero Audio

Magnifier

GZHW 25SPL

25 cm / 10″ high quality SPL subwoofer

2500 Watts SPL

10″ high quality SPL subwoofer with alumiunum cast basket and reinforced paper cone

10″ high quality SPL subwoofer
Klippel® optimized
Reinforced paper cone
Long stroke compound surround
Solid aluminum cast basket
63 mm / 2.5″ copper voice coil
2-layer Polycot spider
IMPP dust cap with 3D structure logo

Model	High-Quality SPL Subwoofer
Diameter	25 cm / 10″
Power handling (RMS/SPL)	1200 / 2500 Watts
Impedance	2x 1 Ohms
Efficiency	83 dB
Power recommendation	800 – 2500 Watts
Voice coil	63 mm / 2.5″ copper
Cone	Reinforced paper
Max. Excursion (Xmax)	45 mm
Mounting depth	178 mm
Resonance frequency (Fs)	41.8 Hz
Damping ratio (Qts)	0.487
Equiv. air volume (Vas)	8.53 L

GZHW 25SPL Read More »

GZHW 25SPL Green Edition

22. November 2022 / Ground Zero Audio

Magnifier

GZHW 25SPL Green Edition

25 cm / 10″ high quality SPL subwoofer

2500 Watts SPL

8″ high quality SPL subwoofer with alumiunum cast basket and reinforced paper cone

10″ high quality SPL subwoofer
Klippel® optimized
Reinforced paper cone
Long stroke compound surround
Solid aluminum cast basket
63 mm / 2.5″ copper voice coil
2-layer Polycot spider
IMPP dust cap with 3D structure logo

Model	High-Quality SPL Subwoofer
Diameter	25 cm / 10″
Power handling (RMS/SPL)	1200 / 2500 Watts
Impedance	2x 1 Ohms
Efficiency	83 dB
Power recommendation	800 – 2500 Watts
Voice coil	63 mm / 2.5″ copper
Cone	Reinforced paper
Max. Excursion (Xmax)	45 mm
Mounting depth	178 mm
Resonance frequency (Fs)	41.8 Hz
Damping ratio (Qts)	0.487
Equiv. air volume (Vas)	8.53 L

GZHW 25SPL Green Edition Read More »

GZHW 25XSPL-D1

22. November 2022 / Ground Zero Audio

Magnifier

GZHW 25XSPL-D1

25 cm / 10″ high quality SPL subwoofer

2500 Watts SPL

10″ high quality SPL subwoofer with alumiunum cast basket and reinforced paper cone

10″ high quality SPL subwoofer
Klippel® optimized
Reinforced paper cone
Long stroke compound surround
Solid aluminum cast basket
63 mm / 2.5″ copper voice coil
2-layer Polycot spider
IMPP dust cap with 3D structure logo

Model	High-Quality SPL subwoofer
Diameter	25 cm / 10″
Power handling (RMS/SPL)	1200 / 2500 Watts
Impedance	2x 1 Ohms
Efficiency	83 dB
Power recommendation	800 – 2500 Watts
Voice coil	63 mm / 2.5″ Copper
Cone	Reinforced paper
Max. Excursion (Xmax)	45 mm / 1.77″
Mounting Ø	238 mm / 9.37″
Resonance frequency (Fs)	41.8 Hz
Overall quality (Qts)	0.487
Equiv. air volume (Vas)	8.53 L / 0.30 cu.ft.

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GZUW 10SQ-D2

22. November 2022 / Ground Zero Audio

Magnifier

GZUW 10SQ-D2

25 cm / 10″ sound quality subwoofer

450 Watts RMS

10″ sound quality subwooferwith aluminum cast basket ans pressed paper cone

10″ sound quality subwoofer
Klippel® optimized
Scooped and pressed paper cone
U-shape foam surround
Solid aluminum cast basket
50 mm / 2″ copper voice coil
Audiophile Polycot spider
Coated paper dust cap

Model	High-Quality SQ subwoofer
Diameter	25 cm / 10″
Power Handling (RMS)	450 Watts
Impedance	2x 2 Ohms
Efficiency	86 dB
Power recommendation	300 – 600 Watts
Voice coil	50 mm / 2″ copper
Cone	Scooped paper
Max. Excursion (Xmax)	20 mm / 0.79″
Mounting Ø	236 mm / 9.29″
Mounting depth	148 mm / 5.83″
Resonance frequency (Fs)	40.2 Hz
Equiv. air volume (Vas)	21.8 L / 0.77 cu.ft.

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GZHW 10SPL-D2 FLAT

22. November 2022 / Ground Zero Audio

Magnifier

GZHW 10SPL-D2 FLAT

25 cm / 10″ high quality flat SPL subwoofer

1000 Watts SPL

10″ high quality flat SPL subwoofer with alumiunum cast basket

10″ high quality flat SPL subwoofer
Klippel® optimized
Sandwich paper cone
Durable U-shape rubber surround
Solid aluminum cast basket
63 mm / 2.5″ copper voice coil
4-layer copper voice coil
Push terminal

Model	High-Quality Flat SPL Subwoofer
Diameter	25 cm / 10″
Power handling (RMS/SPL)	600 / 1000 Watts
Impedance	2x 2 Ohms
Efficiency	85 dB
Power recommendation	400 – 1000 Watts
Voice coil	63 mm / 2.5″ Copper
Max. Excursion (Xmax)	29 mm / 1.14″
Mounting Ø	238 mm / 9.37″
Mounting depth	103 mm / 4.06″
Resonance frequency (Fs)	35.5 Hz
Overall quality (Qts)	0.434
Equiv. air volume (Vas)	19.7 L / 0.70 cu.ft.

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GZPW 10SPL

22. November 2022 / Ground Zero Audio

Magnifier

GZPW 10SPL

25 cm / 10″ high power SPL subwoofer

6500 Watts SPL

10″ high power SPL competition subwoofer with aluminum cast basket and reinforced paper cone

10″ high power SPL subwoofer
Klippel® optimized
Paper-glassfiber-kevlar cone
V-shape foam surround
Solid aluminum cast basket
75 mm / 3″ round wire voice coil
4-layer Conex spider
IMPP dust cap

Model	High-Power SPL subwoofer
Diameter	25 cm / 10″
Power handling (RMS/SPL)	3000 / 6500 Watts
Efficiency	89.7 dB
Power recommendation	2000 – 6500 Watts
Voice coil	75 mm / 3″ aluminum
Cone	Paper-glass fiber-kevlar
Max. Excursion (Xmax)	30 mm / 1.18″
Mounting Ø	235 mm / 9.25″
Resonance frequency (Fs)	51.7 Hz
Overall quality (Qts)	0.40
Equiv. air volume (Vas)	6.9 L / 0.24 cu.ft.

GZPW 10SPL Read More »

GZCW 12.1200-PRO

22. November 2022 / Ground Zero Audio

Magnifier

GZCW 12.1200-PRO

30 cm / 12″ high power Copetition subwoofer

1200 Watts max

12″ high end competition subwoofer with aluminum cast basket and pressed paper cone

12″ high power competition subwoofer
Klippel® optimized
Fiber reinforced paper cone
W-shape long stroke surround
Solid aluminum cast basket
75 mm / 3″ copper voice coil
Fibre reinforced paper dust cap

Model	High-Power Competition Midwoofer
Diameter	30 cm / 12″
Power handling (RMS/max.)	800 / 1200 Watts
Impedance	4 Ohms
Efficiency	96 dB
Voice coil	100 mm / 4″ copper
Cone	Fiber reinforced paper
Mounting depth	117 mm
Resonance frequency (Fs)	56.2 Hz
Damping ratio (Qts)	0.26
Equiv. air volume (Vas)	29.9 L

GZCW 12.1200-PRO Read More »

GZPW Reference 250

22. November 2022 / Ground Zero Audio

Magnifier

GZPW Reference 250

25 cm / 10″ high end subwoofer

500 Watts RMS

10″ high end sound quality subwoofer with aluminum cast basket and coated paper cone

10″ high end subwoofer
Klippel® optimized
3-layer sandwich cone
Leightweight rubber surround
Solid aluminum cast basket
50 mm / 2″ copper voice coil
2-layer Bimax spider
Coated paper dust cap

Model	High-End SQ subwoofer
Diameter	25 cm / 10″
Power Handling (RMS)	500 Watts
Impedance	2x 2 Ohms
Efficiency	87 dB
Power recommendation	300 – 600 Watts
Voice coil	50 mm / 2″ copper
Max. Excursion (Xmax)	40 mm / 1.57″
Mounting depth	128 mm / 5.04″
Resonance frequency (Fs)	31 Hz
Overall quality (Qts)	0.53
Equiv. air volume (Vas)	31.47 L / 1.11 cu.ft.

GZPW Reference 250 Read More »

GZIW 300

22. November 2022 / Ground Zero Audio

Magnifier

GZIW 300

30 cm / 12″ high quality subwoofer

350 Watts RMS

12″ high quality subwoofer with solid 3D HQPP cone

12″ subwoofer
Klippel® optimized
3D HQPP cone
Long stroke rubber surround
Resonance free steel basket
50 mm / 2″ copper voice coil
Polycot spider
IMPP dust cap with 3D structure logo

Model	High-Quality subwoofer
Diameter	30 cm / 12″
Power Handling (RMS)	350 Watts
Impedance	4 Ohms
Efficiency	88 dB
Power recommendation	200 – 400 Watts
Voice coil	50 mm / 2″ copper
Cone	HQPP cone with 3D structure
Max. Excursion (Xmax)	28 mm / 1.10″
Mounting Ø	287 mm / 11.30″
Mounting depth	149 mm / 5.87″
Resonance frequency (Fs)	30 Hz
Overall quality (Qts)	0.58
Equiv. air volume (Vas)	69.3 L / 2.45 cu.ft.