GZCA 3000X.M2

High-power class D amplifier

1-channel 1-ohm stable SPL high power amplifier with class D circuit, integrated active crossover and bass boost

SPL high power amplifier
High-efficient class D technology
Variable active crossover and bass boost
Particularly qualified for SPL and SQL applications
Stabilized high voltage power supply
Large terminals
Flat heatsink design in classic GZ style
Wired bass level remote control included

Model	Competition SPL amplifier
Channels	1
Output Power (@ 4Ω)	1825 Watts RMS
Output Power (@ 2Ω)	3180 Watts RMS
Output Power (@ 2Ω)	4500 Watts max
Frequency Response	10 Hz – 18 kHz
HPF / LPF / BPF	● / ● / ●
Bass Boost / Phase switch	● / ○
High level input / Auto-on	○ / ○
Remote	●
BIAS Setting	○
Linkmode	○
Dimensions (W x L x H)	277 x 150 x 58 mm / 10.91″ x 5.91″ x 2.28″

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Product Info

Technical Data

GZNW 25C

4. September 2026 / groundzero

Magnifier

GZNW 25C

25 cm / 10″ high performance subwoofer

Additional Information

3000 Watts

10″ high performance subwoofer with airflow optimized aluminum cast basket

10″ high performance subwoofer
Klippel® optimized
Carbon-fiber cone
Airflow optimized aluminum cast basket
75 mm / 3″ copper voice coil
2-layer Polycot spider
Carbon-fiber dust cap
Massive push terminals

Ausführung	High-Performance SPL Subwoofer
Durchmesser	25 cm
Belastbarkeit (RMS/SPL)	1500 / 3000 Watt
Impedanz	2x 2 Ohm
Wirkungsgrad	83 dB
Leistungsempfehlung	1000 – 3000 Watt
Schwingspule	75 mm Kupfer
Membran Ausführung	Carbon
Max. Auslenkung (Xmax)	45 mm
Einbau Ø	238 mm
Einbautiefe	216 mm
Resonanzfrequenz (Fs)	42 Hz
Gesamtgüte (Qts)	0,5
Äquiv. Luftvolumen (Vas)	6.8L

GZCM 10XSPL

26. August 2026 / groundzero

Magnifier

GZCM 10XSPL

250 mm / 10″ high power midrange speaker

450 Watts max

250 mm / 10″high efficient midrange speaker with reinforced paper cone and short CCAW voice coil

10″ high power midrange speaker
50 mm / 2″ CCA voice coil
Fiber reinforced paper cone
Ferrite motor
Resonance free steel basket
Dual cone paper dust cap
1 pair / package

Model	High power midrange speaker
Diameter	250 mm / 10″
Power handling (RMS/max.)	150 / 450 Watts
Impedance	4 Ohms
Efficiency	96 dB
Frequency Response	150 Hz – 10 kHz
Voice coil	50 mm / 2″ CCA
Mounting Ø	231 mm / 9.09″
Mounting depth	103 mm / 4.06″
Resonance frequency (Fs)	68 Hz

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GZCK 165XSPL-II

8. July 2026 / groundzero

Magnifier

GZCK 165XSPL-II

165 mm / 6.5″ SPL midwoofer

250 Watts max

165 mm / 6.5″ high efficient SPL midwoofer with stiff reinforced paper cone and long stroke CCAW voice coil, incl. grill

6.5″ SPL midwoofer
38 mm / 1.5″ voice coil
Fiber reinforced paper cone
Long stroke foam surround
Resonance free steel basket
Paper dust cap
Incl. protection grill
Soldering terminal
1 pair / package

Model	SPL midwoofer
Diameter	165 mm / 6.50″
Power handling (RMS/max.)	100 / 250 Watts
Impedance	4 Ohms
Frequency Response	50 Hz – 10 kHz
Voice coil	38 mm / 1.5″ CCA
Mounting Ø	145 mm / 5.71″
Mounting depth	71,5 mm / 2.81″
Resonance frequency (Fs)	56.8 Hz

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Info Sheet (EN)

Data Sheet (EN)

GZCK 200XSPL-II

8. July 2026 / groundzero

Magnifier

GZCK 200XSPL-II

200 mm / 8″ SPL midwoofer

300 Watts max

200 mm / 8″ high efficient SPL midwoofer with stiff reinforced paper cone and long stroke CCAW voice coil, incl. grill

8″ SPL midwoofer
38 mm / 1.5″ voice coil
Fiber reinforced paper cone
Long stroke foam surround
Resonance free steel basket
Paper dust cap
Incl. protection grill
Soldering terminal
1 pair / package

Model	SPL midwoofer
Diameter	200 mm / 7.87″
Power handling (RMS/max.)	150 / 300 Watts
Impedance	4 Ohms
Efficiency	93 dB
Frequency Response	50 Hz – 6 kHz
Voice coil	38 mm / 1.5″ CCA
Mounting Ø	183 mm / 7.20″
Mounting depth	86 mm / 3.39″
Resonance frequency (Fs)	54.3 Hz

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Info Sheet (EN)

Data Sheet (EN)

GZPW 18C

23. April 2026 / groundzero

Magnifier

GZPW 18C

46 cm / 18″ high power subwoofer

6000 Watts RMS

18″ high power subwoofer with aluminum cast basket

18″ high power subwoofer
Klippel® optimized
Carbon-fiber cone
75 mm / 3″, 8-layer flat wire CCA voice coil
7-layer 10” spider
Carbon fiber dust cap

Type	High-Power Subwoofer
Diameter	46 cm / 18″
Power handling (RMS)	6000 Watts
Impedance	2x 1 Ohm
Efficiency	88 dB
Power recommendation	4000 – 6000 Watts
Voice coil	75 mm / 3″ CCA
Cone	Carbon-fiber
Max. excursion (Xmax)	80 mm / 3.15″
Mounting Ø	428 mm / 16.85″
Mounting depth	310 mm / 12.2″
Resonance frequency (Fs)	34 Hz
Damping ratio (Qts)	0.375
Equiv. air volume (Vas)	29.44 L / 1.03 cu.ft.

GZRM 80SQX

10. April 2026 / groundzero

Magnifier

GZRM 80SQX

80 mm / 3.15″ sound quality midrange speaker

80 Watts max

3.15″ sound quality midrange speaker with aluminum cone

80 mm / 3.15″ sound quality midrange speaker
25 mm / 1″ CCA voice coil
Anodized aluminum cone
Neodymium motor
Resonance free aluminum basket
Incl. protection grill
Soldering terminal
1 pair / package

Model	Sound quality midrange speaker
Diameter	80 mm / 3.15″
Power handling (RMS/max.)	50 / 80 Watts
Impedance	3 Ohms
Efficiency	89 dB
Frequency Response	140 Hz – 4 kHz
Voice coil	25 mm / 1″
Cone	anodized aluminum
Magnetmaterial	Neodymium
Mounting Ø	77 mm / 3.03″
Mounting depth	37 mm / 1.46″
Resonance frequency (Fs)	138 Hz

Owner’s manual

Info Sheet

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GZCM 8.0N-PROC

16. March 2026 / groundzero

Magnifier

GZCM 8.0N-PROC

200 mm / 8″ high power midrange speaker with neodymium motor

500 Watts max

200 mm / 8″ high end SPL midrange speaker with neodymium motor and aluminum cast basket

8″ high power midrange speaker with neodymium motor
63 mm / 2.5″ CCA voice coil
Carbon cone
Neodymium motor
Aluminum cast basket
Push terminal
1 piece / package

Model	High end midrange speaker with neodymium magnet
Diameter	200 mm / 8″
Power handling (RMS/max.)	300 / 500 Watts
Impedance	4 Ohm
Efficiency	96 dB
Frequency response	100 Hz – 9 kHz
Voice coil	63 mm / 2.5″ CCA
Cone	carbon fiber
Mounting Ø	181 mm / 7.13″
Mounting depth	82 mm / 3.23″
Resonance frequency (Fs)	81 Hz
Damping ratio (Qts)	0.23
Equiv. air volume (Vas)	11.3 L / 0.4 cu.ft.

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Info Sheet

GZCM 6.5N-PROC

16. March 2026 / groundzero

Magnifier

GZCM 6.5N-PROC

165 mm / 6.5″ high power midrange speaker with neodymium motor

400 Watts max

165 mm / 6.5″ high end SPL midrange speaker with neodymium motor and aluminum cast basket

6.5″ high power midrange speaker with neodymium motor
38 mm / 1.5″ CCA voice coil
Carbon cone
Neodymium motor
Aluminum cast housing
Push terminal
1 piece / package

Model	High end midrange speaker with neodymium magnet
Diameter	165 mm / 6.5″
Power handling (RMS/max.)	200 / 400 Watts
Impedance	4 Ohm
Efficiency	94 dB
Frequency response	150 Hz – 12 kHz
Voice coil	38 mm / 1.5″ CCA
Cone	carbon fiber
Mounting Ø	147 mm / 5.79″
Mounting depth	63 mm / 2.48″
Resonance frequency (Fs)	125 Hz
Damping ratio (Qts)	0.45
Equiv. air volume (Vas)	4 L / 0.14 cu.ft.

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Info Sheet

GZCF 165NEO-PROC

26. February 2026 / groundzero

Magnifier

GZCF 165NEO-PROC

165 mm / 6.5″ High-power full range loudspeaker for active use

300 + 100 Watts max

165 mm / 6.5″ 2-way coaxial speaker system with paper cone and 25 mm / 1″ PEI compression tweeter

2-way high-power coaxial loudspeaker system
Carbon cone
Wave shaped textile surround
High-efficient neodymium motor
Aluminum cast basket
High efficiency (SPL)
25 mm / 1″ compression tweeter
High-efficient neodymium motor
For active use
Hexagon style protection grill available separately

Model	2-way coaxial speakers for active use
Diameter	165 mm / 6.5″
Power handling (RMS/max.)	150+50 / 300+100 Watts
Impedance	4 + 4 ohms
Efficiency	94 dB
Tweeter	25 mm / 1″ PEI
Cone	carbon fiber
Mounting Ø	147 mm / 5.79″
Mounting depth	86 mm / 3.39″
Xmax (p2p)	8 mm / 0.31″

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GZCF 200NEO-PROC

26. February 2026 / groundzero

Magnifier

GZCF 200NEO-PROC

200 mm / 6.5″ High-power full range loudspeaker for active use

400 + 100 Watts max

200 mm / 8″ 2-way coaxial speaker system with coated paper cone and 25 mm / 1″ compression tweeter

2-way high-power coaxial loudspeaker system
Carbon cone
Wave shaped textile surround
High-efficient neodymium motor
Aluminum cast basket
High efficiency (SPL)
25 mm / 1″ compression tweeter
High-efficient neodymium motor
For active use
Hexagon style protection grill available separately

Model	2-way coaxial speakers for active use
Diameter	200 mm / 8″
Power handling (RMS/max.)	250+50 / 400+100 Watts
Impedance	4 + 4 ohms
Efficiency	96 dB
Tweeter	25 mm / 1″ PEI
Cone	carbon fiber
Mounting Ø	181 mm / 7.13″
Mounting depth	104 mm / 4.09″
Xmax (p2p)	12 mm / 0.47″

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GZCF 7104XSPL PINK EDITION

20. February 2026 / groundzero

Magnifier

GZCF 7104XSPL PINK EDITION

7×10″ 4-way coaxial speaker system
– Available in selected countries –

300 Watts max

7×10″ 4-way high power coaxial speaker system with fiber reinforced paper cone and an impedance of 4 ohms

4-way coaxial speaker system
Fiber reinforced paper con
Foam surround
Push terminal
Resonance free steel basket
Universal 4 ohms version
13 mm / 0.51″ PEI tweeter
50 mm / 2″ paper cone midrange speaker
13 mm / 0.51″ Piezo super tweeter
Incl. protection grill

Model	4-way coaxial speakers
Diameter	7×10″
Power handling (RMS/max.)	200 / 300 Watts
Impedance	4 Ohms
Efficiency	93 dB
Frequency Response	35 Hz – 25 kHz
Tweeter	13 mm / 0.51″ PEI tweeter
Midrange Speaker	50 mm / 2″ paper dipole
Super Tweeter	13 mm / 0.51″ Piezo
Mounting Ø	165 x 239 mm / 6.50″ x 9.41″
Mounting depth	86 mm / 3.39″

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GZW 10-30A

20. February 2026 / groundzero

Magnifier

GZW 10-30A

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
carbon dustcap
aluminum shortening ring

Model	High-Quality SQ Subwoofer
Diameter	25 cm / 10″
Power handling (RMS)	450 Watts
Impedance	2x 2 Ohm
Efficiency	86 dB
Power recommendation	300 – 600 Watt

Info Sheet (EN)

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GZFK 165

19. February 2026 / groundzero

Magnifier

GZFK 165

165 mm / 6.5″ Kick- / Midwoofer
– Available in selected countries –

90 Watts max

High-quality 6.5″ kickwoofer / midwoofer

Klippel® optimized
HQPP cone with 3D structure
Rubber surround
Resonance free steel basket
Universal 4 ohms version
Ferrite motor

Model	High-quality kickwoofer / midwoofer
Diameter	165 mm / 6.50″
Power handling (RMS/max.)	70 / 90 Watts
Impedance	4 ohms
Efficiency	86 dB
Frequency Response	70 Hz – 5 kHz
Cone	HQPP
Mounting Ø	143.5 mm / 5.65″
Mounting depth	60 mm / 2.36″
Resonance frequency (Fs)	82 Hz

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GZFC 165.2

19. February 2026 / groundzero

Magnifier

GZFC 165.2

165 mm / 6.5″ 2-way component speaker system
– Available in selected countries –

150 Watts max

6.5″ 2-way component speaker system with lightweight HQPP cone

2-way component speaker system
HQPP cone
Rubber surround
Euro-DIN basket
Resonance free steel basket
Universal 4 ohms version
19 mm / 0.75″ soft dome tweeter
Ferrite motor
12 dB/oct high pass filter

Model	2-way component speakers
Diameter	165 mm / 6.5″
Power handling (RMS/max.)	100 / 150 Watts
Impedance	4 Ohms
Efficiency	91 dB
Frequency Response	50 Hz – 20 kHz
Tweeter	19 mm / 0.75″ soft dome
Cone	HQPP
Mounting Ø	143,5 mm / 5.65″
Mounting depth	60 mm / 2.36″
Crossover	12 dB/oct – high pass filter
Crossover frequency	5000 Hz

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GZFC 130.2

19. February 2026 / groundzero

Magnifier

GZFC 130.2

130 mm / 5″ 2-way component speaker system
– Available in selected countries –

140 Watts max

5″ 2-way component speaker system with lightweight HQPP cone

2-way component speaker system
HQPP cone with 3D structure
Rubber surround
Resonance free steel basket
Universal 4 ohms version
19 mm / 0.75″ soft dome tweeter
Ferrite motor
12 dB/oct high pass filter

Model	2-way component speakers
Diameter	130 mm / 5.12″
Power handling (RMS/max.)	90 / 140 Watts
Impedance	4 Ohms
Efficiency	90 dB
Frequency Response	60 Hz – 20 kHz
Tweeter	19 mm / 0.75″ soft dome
Cone	HQPP
Mounting Ø	114 mm / 4.49″
Mounting depth	50 mm / 1.97″
Crossover	12 dB/oct – high pass filter
Crossover frequency	5000 Hz

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GZFA 4.150

19. February 2026 / groundzero

Magnifier

GZFA 4.150

4-channel high quality class A/B amplifier
– Available in selected countries –

High-Quality amplifier

4-channel amplifier with class A/B circuit, integrated active crossover and black anodized heatsink

4-channel amplifier
Class AB technology
Variable active crossover
Black anodized heatsink with Ground Zero lettering
High-level input with auto-on function

Type	High power class A/B amplifier
Channels	4
Output Power (@ 4Ω)	4x 100 Watts RMS
Output Power (@ 2Ω)	4x 125 Watts RMS
max. Output Power (CEA-2006A / 10%THD+N)	2x 300 Watts
Output power (@ 4Ω) bridged	2x 250 Watts RMS
Frequency Response	15 Hz – 22 kHz
HPF / LPF / BPF	● / ● / ●
Bass Boost / Phase Shift	○ / ○
High-Level Input / Auto-on	● / ●
Remote Control	○
BIAS Setting	○
Linkmode	○
Dimensions (w x l x h)	192 x 367 x 53 mm / 7.56″ x 14.45″ x 2.09″

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GZFA 4.100

19. February 2026 / groundzero

Magnifier

GZFA 4.100

4-channel high quality class A/B amplifier
– Available in selected countries –

High-Quality amplifier

4-channel amplifier with class A/B circuit, integrated active crossover and black anodized heatsink

4-channel amplifier
Class AB technology
Variable active crossover
Black anodized heatsink with Ground Zero lettering
High-level input with auto-on function

Type	High power class A/B amplifier
Channels	4
Output Power (@ 4Ω)	4x 65 Watts RMS
Output Power (@ 2Ω)	4x 85 Watts RMS
max. Output Power (CEA-2006A / 10%THD+N)	2x 200 Watts
Output power (@ 4Ω) bridged	2x 170 Watts RMS
Frequency Response	15 Hz – 22 kHz
HPF / LPF / BPF	● / ● / ●
Bass Boost / Phase Shift	○ / ○
High-Level Input / Auto-on	● / ●
Remote Control	○
BIAS Setting	○
Linkmode	○
Dimensions (w x l x h)	192 x 337 x 53 mm / 7.56″ x 13.27″ x 2.09″

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GZFA 2.100

19. February 2026 / groundzero

Magnifier

GZFA 2.100

2-channel high quality class A/B amplifier
– Available in selected countries –

High-Quality amplifier

2-channel amplifier with class A/B circuit, integrated low pass filter and black anodized heatsink

2-channel amplifier
Class AB technology
Variable low pass filter and bass boost
Black anodized heatsink with Ground Zero lettering
High-level input with auto-on function

Type	High power class A/B amplifier
Channels	2
Output Power (@ 4Ω)	2x 65 Watts RMS
Output Power (@ 2Ω)	2x 85 Watts RMS
max. Output Power (CEA-2006A / 10%THD+N)	200 Watts
Output power (@ 4Ω) bridged	170 Watts RMS
Frequency Response	15 Hz – 22 kHz
HPF / LPF / BPF	○ / ● / ○
Bass Boost / Phase Shift	● / ○
High-Level Input / Auto-on	● / ●
Remote Control	●
BIAS Setting	○
Linkmode	○
Dimensions (w x l x h)	180 x 237 x 53 mm / 7.09″ x 9.33″ x 2.09″

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GZFA 1.550D

19. February 2026 / groundzero

Magnifier

GZFA 1.550D

1-channel high quality class D amplifier
– Available in selected countries –

High-Quality amplifier

1-channel subwoofer amplifier with class D circuit, integrated active crossover and black anodized heatsink

Mono amplifier
Class D technology
Variable active crossover and bass boost, phase shift
Black anodized heatsink with Ground Zero lettering
Bass remote control included
High-level input with auto-on function

Model	High quality class D amplifier
Channels	1
Output Power (@ 4Ω)	185 Watts RMS
Output Power (@ 2Ω)	280 Watts RMS
Output Power (@ 1Ω)	350 Watts RMS
max. Output Power (CEA-2006A / 10%THD+N)	550 Watts
Frequency Response	15 – 250 Hz
HPF / LPF / BPF	● / ● / ●
Bass Boost / Phase switch	● / ●
High level input / Auto-on	● / ●
Remote	●
BIAS Setting	○
Linkmode	○
Dimensions (W x L x H)	180 x 277 x 53 mm / 7.09″ x 10.91″ x 2.09″