GZ ULTRA 80-GRILL

GZ ULTRA 80-GRILL

Precisely machined massive aluminum mounting ring

  • Precisely machined massive aluminum mounting ring
  • High-gloss polished surface
  • GZ-design hexagon style NRG (Non-resonant grill) protection grill
  • Compatible with many GROUND ZERO midrange speakers*
  • *e.g. GZ ULTRA M-80, GZPM 80SQ-C, GZNM 80SQ-K, GZUM 80SQ, GZHM 80
Typealuminum mounting ring
Outer Ø105 mm / 4.13”
Mounting Ø100 mm / 3.94”
Mounting depth  7 mm / 0.28”
Bolt circle Ø 86 mm / 3.39” (4x)

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GZ ULTRA M-80

GZ ULTRA M-80

Ultra-high-end 80 mm / 3.15” midrange speaker

110 watts max

80 mm / 3.15″ ultra-high-end midrange speaker with airflow-optimized basket and high-tech Kevlar® cone

  • 80 mm / 3.15″ Ultra-high-end midrange speaker
  • Tightly-tolerated technical parameters
  • High-tech Kevlar® cone
  • Linear moving NBR surround
  • Vented voice coil former reducing distortion
  • Round CCA wire voice coil increasing power handling
  • Optimized motor and voice coil ventilation
  • Documented final technical inspection
  • Wooden box packaging / in matching pairs
  • Incl. high-quality mounting ring
TypeUltra-high-end midrange speaker
Diameter80 mm / 3.15″
Power handling (RMS/max.)70 / 110 Watts
Impedance4 Ohms
Efficiency 88 dB
Frequency response150 Hz – 15 kHz
Voice coilCCA
ConeKevlar® 
Mounting Ø76.5 mm / 3.01″
Bolt circle Ø87 mm / 3.43″
Mounting depth42 mm / 1.65″
Resonance frequency (Fs)127 Hz

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GZRC 165.2SQ-IVX

GZRC 165.2SQ-IVX

165 mm / 6.5″ 2-way SQ component speaker system

190 Watts max

6.5″ 2-way SQ component speaker system with aluminum cone and 3-ohms impedance

  • 2-way SQ component speaker system
  • Black anodized aluminum cone
  • Rubber surround
  • Nomex spider
  • Resonance free steel basket
  • High efficient 3 ohms version
  • GZRT 25SQ
  • Ferrite motor
  • Separated high pass and low pass filter
  • Incl. protection grill
Type2-way SQ component speakers
Diameter165 mm / 6.5″
Power handling (RMS/max.)120 / 190 Watts
Impedance3 Ohms
Efficiency90 dB
Frequency response35 Hz – 25 kHz
TweeterGZRT 25SQ
MidwooferGZRK 165SQ
Mounting Ø142.5 mm / 5.61″
Mounting depth68 mm / 2.68″
Crossover12/12 dB/Okt.
Crossover frequency4600 Hz

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GZCS 100.2MB

GZCS 100.2MB

Car specific 100 mm / 4″ 2-way speaker system

Plug´n´play installation

Car specific 100 mm / 4″ 2-way speaker system for Mercedes

  • 2-way speaker for Mercedes
  • Suitable for various vehicles
  • Glas fiber cone
  • neodymium motor
  • GZ design aluminum cast basket
  • 25 mm / 1″ silk dome tweeter
  • Car specific connection
  • 1 pair / package
ModelCar specific 2-way speakers
Diameter100 mm / 4″
Power handling (RMS/max.)70 / 110 Watts
Impedance4 Ohms
Efficiency87 dB
Frequency Response70 Hz – 24 kHz
Voice coil25 mm / 1″ copper
MidwooferGlass fiber cone

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GZCS F-4.0MB

GZCS F-4.0MB

Car specific 100 mm / 4″ 2-way coaxial speaker system

Plug´n´play installation

Car specific 100 mm / 4″ 2-way coaxial speaker system

  • 2-way center coax-speaker for MERCEDES
  • Suitable for various vehicles
  • Glas fiber cone
  • neodymium motor
  • GZ design aluminum cast basket
  • Aluminum adaptor-bolts for Mercedes
  • 20 mm / 0.79″ silk dome tweeter
  • Car specific connection
  • 1 pair / package
ModelCar specific 2-way coax-speaker
Diameter100 mm / 4″
Power handling (RMS/max.)60 / 100 Watts
Impedance4 Ohms
Efficiency87 dB
Frequency Response70 Hz – 22 kHz
Voice coil25 mm / 1″ copper

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GZCW 10SPL

GZCW 10SPL

25 cm / 10″ High-Power midwoofer

1000 Watts max

10″ High-Power midwoofer with fiber reinforced paper cone

  • 10″ midwoofer
  • Klippel® optimized
  • Non-pressed paper cone
  • W-shape long stroke surround
  • GZ-design aluminum cast housing
  • 75 mm / 3″ copper voice coil
  • Reinforced paper dust cap
  • Compact screw terminals
  • 1 piece / package
ModelHigh-Power SPL midwoofer
Diameter25 cm / 10″
Power handling (RMS/max.)500 / 1000 Watts
Impedance4 Ohms
Efficiency91 dB
Frequency response30 Hz – 2400 Hz (F-3 in recommendet enclosure)
Voice coil75 mm / 3″ Copper
ConeNon-pressed paper
Mounting Ø227 mm / 8.94″
Mounting depth122 mm / 4.80″
Resonance frequency (Fs)33 Hz
Overall quality (Qts)0.22
Equiv. air volume (Vas)50 L / 1.77 cu.ft.

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GZNW 15NEO-EXTREME

GZNW 15NEO-EXTREME

38 cm / 15″ high performance SPL subwoofer

6000 Watts SPL

15″ high performance SPL subwoofer with aluminum cast basket

  • 15″ high performance SPL subwoofer
  • Klippel® optimized
  • Coated carbon-fiber cone
  • Multi-piece neodymium motor
  • Solid aluminum cast basket
  • 75 mm / 3″ CCA round wire voice coil
  • 2×2 layer Nomex spider
  • Carbon-fiber dust cap
ModelHigh-Performance SPL Subwoofer
Diameter38 cm / 15″
Power handling (RMS/SPL)3000 / 6000 Watts
Impedance2x 1 Ohms
Efficiency91 dB
Power recommendation2500 – 6000 Watts
Voice coil75 mm / 3″ CCA
ConeCarbon-fiber
Max. Excursion (Xmax)65 mm / 2.56″
Mounting Ø358 mm / 14.09″
Mounting depth300 mm / 11.81″
Resonance frequency (Fs)36.6 Hz
Damping ratio (Qts)0.16
Equiv. air volume (Vas)35 L / 1.24 cu.ft.

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GZNW 12X-D2

GZNW 12X-D2

30 cm / 12″ long excursion subwoofer

2000 Watts SPL

12″ long excursion subwoofer with aluminum cone

  • 12″ long excursion subwoofer
  • Klippel® optimized
  • Aluminum Cone & dust cap
  • High-roll surround
  • Solid, blue aluminum cast basket
  • 75 mm / 3″ copper round wire voice coil
  • 4-layer polycotton spider
ModelLong excursion Subwoofer
Diameter30 cm / 12″
Power handling (RMS/SPL)2000 / 3500 Watts
Impedance2x 2 Ohms
Efficiency83 dB
Power recommendation1500 – 3500 Watts
Voice coil75 mm / 3″ copper
ConeAluminum
Max. Excursion (Xmax)62 mm / 2.44″
Mounting Ø282 mm / 11.1″
Mounting depth210 mm / 8.27″
Resonance frequency (Fs)21.8 Hz
Damping ratio (Qts)0.33
Equiv. air volume (Vas)35 L / 1.24 cu.ft.

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GZPM 80SQ-C

GZPM 80SQ-C

80 mm / 3.15″ high end midrange speaker

110 Watts max

3.15″ high end midrange speaker with ceramic coated aluminum cone

  • 80 mm / 3.15″ high end midrange speaker with supreme sound quality
  • Klippel® optimized
  • Ceramic coated cone
  • High-efficient, linearized neodymium motor
  • GZ-design aluminum cast basket
  • GZ-design hexagon style NRG protection grill
  • Goldplated soldering terminal
  • 1 pair / package
ModelHigh end midrange speaker
Diameter80 mm / 3.15″
Power handling (RMS/max.)70 / 110 Watts
Impedance4 Ohms
Efficiency89 dB
Frequency Response150 Hz – 4000 Hz
Voice coil20 mm / 0.79″
ConeCeramic coated aluminum
Magnet materialNeodymium
Mounting diameter77 mm / 3.03″
Mounting depth39 mm / 1.54″
Resonance frequency (Fs)100 Hz

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GZHM 80

GZHM 80

80 mm / 3.15″ SQ midrange speaker

80 Watts max

3.15″ sound quality midrange speaker with paper-cone

  • 80 mm / 3.15″ sound quality midrange speaker
  • Klippel® optimized
  • Paper-cone
  • Neodymium motor
  • GZ design aluminum cast basket
  • 25 mm / 0.79″ copper voice coil
  • Durable rubber surround
  • GZ-design hexagon style NRG protection grill
  • 1 pair / package
ModelSound quality midrange speaker
Diameter80 mm / 3.15″
Power handling (RMS/max.)50 / 80 Watts
Impedance4 Ohms
Efficiency89 dB
Frequency Response170 Hz – 5 kHz
Voice coil20 mm / 0.79″
ConePaper
Magnet materialNeodymium
Mounting diameter77 mm / 3.03″
Mounting depth41 mm / 1.61″
Resonance frequency (Fs)106 Hz

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GZTC 165.3X-ACT

GZTC 165.3X-ACT

165 mm / 6.5″ 3-way component speaker system for active use

200 Watts max

6.5″ 3-way component speaker system with structured HQPP cone for active use

  • 3-way component speaker system
  • HQPP cone with 3D structure
  • Rubber surround
  • Euro-DIN basket
  • Resonance free steel basket
  • For active use
  • 19 mm / 0.75″ silk dome tweeter
  • Ferrite motor
  • Incl. hexagon style protection grill
Model3-way component speakers
Diameter165 mm / 6.50″
Power handling (RMS/max.)150 / 200 Watts
Impedance3 ohms each
Frequency Response50 Hz – 22 kHz
Tweeter19 mm / 0.75″ silk dome
ConeHQPP cone with 3D structure
Midrange speakerGZTM 100NEO
Mounting Ø142.5 mm / 5.61″
Mounting depth68 mm / 2.68″
Crossover frequency430/6000 Hz

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GZUT 28SQX

GZUT 28SQX

28 mm / 1.1″ silk dome tweeter

130 Watts max

1.1″ sound quality silk dome tweeter

  • 28 mm / 1.1″ silk dome tweeter
  • Flush mount housing
  • Coated silk dome
  • Gold plated connectors
  • Neodymium motor
  • Connection wires
  • 1 pair / package
ModelSilk dome tweeter
Diameter28 mm / 1.10″
Power handling (RMS/max.)80 / 130 Watts
Impedance4 Ohms
Efficiency90 dB
Frequency Response2500 Hz – 25 kHz
Recommended high pass filter3000 Hz @ 12 dB/oct
Voice coil28 mm / 1.1″
ConeCoated silk dome
Mounting Ø48 mm / 1.89″
Mounting depth18 mm / 0.71″
Resonance frequency (Fs)1300 Hz

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GZCS F-4.0BMW

GZCS F-4.0BMW

Car specific 100 mm / 4″ 2-way coaxial speaker system

Plug´n´play installation

Car specific 100 mm / 4″ 2-way coaxial speaker system

  • 2-way center coax-speaker for BMW
  • Suitable for various vehicles
  • Glas fiber cone
  • neodymium motor
  • GZ design aluminum cast basket
  • GZ design aluminum mounting frame for BMW
  • 20 mm / 0.79″ Mylar tweeter
  • Car specific connection
ModelCar specific 2-way coax-speaker
Diameter100 mm / 4″
Power handling (RMS/max.)60 / 90 Watts
Impedance4 Ohms
Efficiency87 dB
Frequency Response70 Hz – 22 kHz
Voice coil25 mm / 1″ copper

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GZUA 6SQ

GZUA 6SQ

High-performance 6-channel SQ amplifier

High-performance SQ amplifier

6-channel sound quality amplifier with class A/B circuit, integrated active crossover and BIAS adjustment

  • 6-channel SQ amplifier
  • Variable BIAS setting
  • Class AB technology
  • Variable active crossover with bypass function
  • Gold-plated connectors
  • Massiv heatsink with engraved Ground Zero lettering
  • Suitable for high quality SQ setups
ModelSound quality amplifier
Channels6
Output Power (@ 4Ω)4x 110 + 2x 160 Watts RMS
Output Power (@ 2Ω)4x 175 + 2x 280 Watts RMS
max. Output Power (CEA-2006A / 10%THD+N)2x 425 + 650 Watts
Ouput power (@ 4Ω) bridged (CH1-4)2x 340 Watts RMS
Frequency Response10 Hz – 70 kHz
HPF / LPF / BPF● / ● / ●
Bass Boost / Phase Shift○ / ○
High-Level Input / Auto-on○ / ○
Remote Control
BIAS Setting
Linkmode
Dimensions (w x l x h)209 x 550 x 48 mm / 8.23 x 21.65 x 1.89″

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GZUA 4SQ

GZUA 4SQ

High-performance 4-channel SQ amplifier

High-performance SQ amplifier

4-channel sound quality amplifier with class A/B circuit, integrated active crossover and BIAS adjustmenq

  • 4-channel SQ amplifier
  • Variable BIAS setting
  • Class AB technology
  • Active crossover with bypass function
  • Soft delayed remote turn-on
  • Gold-plated connectors
  • Massiv heatsink with engraved Ground Zero lettering
  • Suitable for high quality SQ setups
ModelSound quality amplifier
Channels4
Output Power (@ 4Ω)4x 115 Watts RMS
Output Power (@ 2Ω)4x 185 Watts RMS
max. Output Power (CEA-2006A / 10%THD+N)2x 440 Watts
Ouput power (@ 4Ω) bridged2x 350 Watts RMS
Frequency Response10 Hz – 70 kHz
HPF / LPF / BPF● / ● / ●
Bass Boost / Phase Shift○ / ○
High-Level Input / Auto-on○ / ○
Remote Control
BIAS Setting
Linkmode
Dimensions (w x l x h)209 x 360 x 48 mm / 8.23 x 14.17 x 1.89″

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GZUA 2SQ

GZUA 2SQ

High-performance 2-channel SQ amplifier

High-performance SQ amplifier

2-channel sound quality amplifier with class A/B circuit, integrated active ecrossover and BIAS adjustment

  • 2-channel SQ amplifier
  • Variable BIAS setting
  • Class AB technology
  • Variable active crossover with bypass function
  • 2 ohms stable in bridged mode
  • Soft delayed remote turn-on
  • Gold-plated connectors
  • Massiv heatsink with engraved Ground Zero lettering
  • Bass remote control included
  • Suitable for high quality SQ setups
ModelSound quality amplifier
Channels2
Output Power (@ 4Ω)2x 175 Watts RMS
Output Power (@ 2Ω)2x 300 Watts RMS
Output Power (@ 1Ω)2x 485 Watts RMS
max. Output Power (CEA-2006A / 10%THD+N)1180 Watts
Ouput power (@ 2Ω) bridged1000 Watts RMS
Frequency Response10 Hz – 70 kHz
HPF / LPF / BPF● / ● / ●
Bass Boost / Phase Shift● / ●
High-Level Input / Auto-on○ / ○
Remote Control
BIAS Setting
Linkmode
Dimensions (w x l x h)209 x 360 x 48 mm / 8.23 x 14.17 x 1.89″

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GZCM 8.0N-PROX

GZCM 8.0N-PROX

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
  • Fiber reinforced paper cone
  • Neodymium motor
  • Aluminum cast basket
  • Aluminum phase plug
  • water repellend cone
  • Incl. protection grill
  • Push terminal
  • 1 piece / package
ModelHigh end midrange speaker with neodymium magnet
Diameter200 mm / 8″
Power handling (RMS/max.)300 / 500 Watts
Impedance4 Ohms
Efficiency98 dB
Frequency Response120 Hz – 7 kHz
Voice coil63 mm / 2.5″ CCA
Mounting Ø181 mm / 7.13″
Mounting depth82 mm / 3.23″

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GZRW 300-D2 FLAT

GZRW 300-D2 FLAT

30 cm / 12″ high quality subwoofer

450 Watts RMS

12” subwoofer with shallow installation depth

  • 12″ flat subwoofer
  • Efficient ferrite motor
  • Paper sandwich cone
  • Durable rubber surround
  • Shallow GZ-design steel basket
  • 50 mm / 2″ copper voice coil
  • Polycot spider
  • Aluminum dust cap
ModelHigh-Quality SPL Subwoofer
Diameter30 cm / 12″
Power handling (RMS)450 Watts
Impedance2x 2 Ohms
Efficiency84 dB
Power recommendation200 – 800 Watts
Voice coil50 mm / 2″ copper
ConePaper sandwich cone
Max. Excursion (Xmax)30 mm / 1.18″
Mounting diameter278 mm / 10.94″
Mounting depth93 mm / 3.66″
Resonance frequency (Fs)23.5 Hz
Damping ratio (Qts)0.44
Equiv. air volume (Vas)60,2 L / 2.13 cu.ft.

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GZRW 250-D2 FLAT

GZRW 250-D2 FLAT

25 cm / 10″ high quality SPL subwoofer

400 Watts RMS

10” subwoofer with shallow installation depth

  • 10″ flat subwoofer
  • Efficient ferrite motor
  • Paper sandwich cone
  • Durable rubber surround
  • Shallow GZ-design steel basket
  • 50 mm / 2″ copper voice coil
  • Polycot spider
  • Aluminum dust cap
ModelHigh-Quality SPL Subwoofer
Diameter25 cm / 10″
Power handling (RMS)400 Watts
Impedance2x 2 Ohms
Efficiency84 dB
Power recommendation200 – 800 Watts
Voice coil50 mm / 2″ copper
ConePaper sandwich cone
Max. Excursion (Xmax)22 mm / 0.87″
Mounting diameter232 mm / 9.13″
Mounting depth85 mm / 3.35″
Resonance frequency (Fs)28 Hz
Damping ratio (Qts)0.54
Equiv. air volume (Vas)35.8 L / 1.26 cu.ft.

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