Competition GZCK 165XSPL-II

Competition GZCK 165XSPL-II

Technical Highlights

  • Nominal impedance 4 Ohm, continuous power handling 100 W RMS, 250 W Max.
  • Speaker type: high-power, frequency response: 50 Hz – 10 kHz.
  • Efficiency 93 dB, voice coil 38 mm, resonant frequency: 56.8 Hz.
  • More technical details
Regular price €109.65
Regular price -15% €129.00 selling price €109.65
2% discount with credit card
including VAT
3 pair in stock This quantity is ready to ship. Extra units follow within the stated delivery time at no extra shipping cost.
Estimated delivery: Sep 14–Sep 15.
x pair
  • American Express
  • Apple Pay
  • Bancontact
  • BLIK
  • EPS
  • Google Pay
  • iDEAL Wero
  • Maestro
  • Mastercard
  • MobilePay
  • PayPal
  • Shop Pay
  • Twint
  • Union Pay
  • Visa

Right for your project?

What does this product offer?

Discover the Competition GZCK 165XSPL-II from Ground Zero, a 6.5" (16.5 cm) midbass driver that offers high-power performance. With a nominal impedance of 4 Ohm and an impressive continuous power handling of 100 W RMS, it is suitable for various audio applications. The frequency response of 50 Hz to 10 kHz and an efficiency of 93 dB (1W/1m) ensure clear, powerful sound. The stable voice coil made of copper-coated aluminum...

Will it fit my car?
  • Installation dimensions

Compare installation dimensions and connections with your car and existing system. Vehicle-specific products may also be limited to certain years or equipment versions.

Which variant do I need?

No other variant is offered for this product. Check your system requirements before buying.

What is included?

The offer is for the named product in the selected variant. The available information does not clearly list all included accessories. Check required accessories with us before buying.

What else do I need?

Check mounting depth, cutout, fixings and connectors. Speaker rings or adapters may be required for your car; tweeters and component systems need suitable crossovers.

What does installation involve?

Effort depends on the car, existing wiring and installation position. A reliable installation time cannot be stated generally. Check connections, mounting and space before buying; use a qualified installer if unsure.

Advice by email

Reply in 1–3 working days · Mon–Fri

Delivery & availability

The selected variant is in stock at Masori. The delivery estimate above applies to the shown selection and destination country.

Learn more

Orders ship together based on the item with the longest lead time. If you need something sooner, ask by email about a possible partial shipment beforehand.

Shipping costs and options depend on the destination. Check the shipping calculator; final costs are shown before placing the order.

datasheet
Regular price €109.65
Regular price €129.00 selling price €109.65

Discover the Competition GZCK 165XSPL-II from Ground Zero, a 6.5" (16.5 cm) midbass driver that offers high-power performance. With a nominal impedance of 4 Ohm and an impressive continuous power handling of 100 W RMS, it is suitable for various audio applications. The frequency response of 50 Hz to 10 kHz and an efficiency of 93 dB (1W/1m) ensure clear, powerful sound. The stable voice coil made of copper-coated aluminum wire and the resonance-optimized steel basket, combined with a reinforced paper diaphragm, provide reliability and durability. The installation depth is 72 mm, offering versatile installation options.

Technical specifications

  • Model: GZCK 165XSPL-II
  • Speaker type: High-Power Kickwoofer / Midbass driver
  • Nominal impedance: 4 Ohm
  • Continuous power handling: 100 W RMS
  • Peak power handling: 250 W Max
  • Frequency response: 50 Hz – 10 kHz
  • Efficiency: 93 dB (1W/1m)
  • Voice coil: 38 mm (copper-coated aluminum wire)
  • Basket material: Resonance-optimized steel basket
  • Surround material: Foam (W-shape)
  • Diaphragm material: Reinforced paper

Electro-acoustic parameters (TSP)

  • Resonance frequency (Fs): 56.8 Hz
  • Equivalent volume (Vas): 16.2 l
  • Total quality (Qts): 0.31
  • Electrical quality (Qes): 0.32
  • Mechanical quality (Qms): 9.12
  • Force factor (BL): 6.9 Tm
  • DC resistance (Re): 3.3 Ohm
  • Voice coil inductance (Le): 0.29 mH
  • Moving mass (Mms): 12.7 g
  • Compliance of the suspension (Cms): 0.62 mm/N

Installation dimensions

  • Nominal diameter: 165 mm
  • Outer diameter: 169 mm
  • Installation diameter (mounting hole): 145 mm
  • Installation depth: 72 mm

Frequently Asked Questions about Competition GZCK 165XSPL-II


What power does the Competition GZCK 165XSPL-II offer?

The Competition GZCK 165XSPL-II from Ground Zero features a continuous power handling of 100 Watts RMS and a peak power handling of 250 Watts. With a nominal impedance of 4 Ohm, it allows for optimal power output. The frequency response of 50 Hz to 10 kHz ensures comprehensive sound reproduction, while the efficiency of 93 dB (1W/1m) enables high volume levels. The 38 mm voice coil made of copper-coated aluminum wire contributes to the efficient conversion of electrical energy into sound. These technical parameters make it a powerful high-power kickwoofer and Mid-woofers.

What materials are used in the Competition GZCK 165XSPL-II?

The Competition GZCK 165XSPL-II is equipped with high-quality materials, including a resonance-optimized steel basket that provides rigidity and durability. The diaphragm is made of reinforced paper, giving the sound depth and stability. The W-shaped foam surround ensures precise control of diaphragm movement, while the copper-coated aluminum wire voice coil is responsible for the efficient operation of the speaker. This combination of materials allows for optimal sound quality and ensures that the speaker is both robust and powerful.

What are the electro-acoustic parameters of the Competition GZCK 165XSPL-II?

The electro-acoustic parameters of the Competition GZCK 165XSPL-II include a resonance frequency (Fs) of 56.8 Hz and an equivalent volume (Vas) of 16.2 liters. The total quality factor (Qts) is 0.31, indicating a balanced ratio of electrically and mechanically induced damping. The electrical quality (Qes) is 0.32 and the mechanical quality (Qms) is 9.12. The force factor (BL) is 6.9 Tm, and the DC resistance (Re) is 3.3 Ohm. Additionally, the voice coil inductance (Le) is 0.29 mH. Together, they provide accurate sound reproduction.

What are the installation dimensions of the Competition GZCK 165XSPL-II?

The Competition GZCK 165XSPL-II has a nominal diameter of 165 mm and an outer diameter of 169 mm. The installation diameter or mounting hole has a diameter of 145 mm, which must be considered when preparing for installation. The installation depth is 72 mm, which is important for integration into different enclosures to ensure sufficient space. These dimensions are essential to guarantee a smooth installation and not impair acoustic performance.

How can the Competition GZCK 165XSPL-II be mounted in the car?

For mounting the Competition GZCK 165XSPL-II in the vehicle, you should pay close attention to the installation dimensions. The nominal diameter is 165 mm and the installation diameter is 145 mm, while the installation depth is 72 mm. These dimensions require precise fitting in the vehicle, especially in limited space. Ensure that the installation area provides enough room to prevent resonances and achieve clear sound reproduction. Flawless installation and perfect sealing significantly improve sound quality and minimize vibrations.

How does the voice coil affect the performance of the Competition GZCK 165XSPL-II?

The voice coil in the Competition GZCK 165XSPL-II, made from copper-coated aluminum wire with a diameter of 38 mm, plays a crucial role in the speaker's performance. It affects the conversion of electrical energy into mechanical movement, which is directly correlated with sound radiation. A larger voice coil design means higher load capacity and efficiency, especially at higher volumes. It also ensures thermal stability, which is essential at high frequencies and during intense use. This specific voice coil maximizes sound quality and reliability.

What frequency range is covered by the Competition GZCK 165XSPL-II?

The Competition GZCK 165XSPL-II covers a wide frequency range from 50 Hz to 10 kHz. This allows for detailed and comprehensive audio reproduction, clearly representing both deep bass and high frequencies. The frequency response is crucial for the versatility of the speaker across various music genres and listening situations. Such a range ensures that you can experience both deep drums and the high sounds of instruments like violins or guitars authentically and without distortion.

What is the equivalent volume of the Competition GZCK 165XSPL-II?

The equivalent volume (Vas) of the Competition GZCK 165XSPL-II is 16.2 liters. This parameter is a crucial component in the development of a loudspeaker, as it indicates how much air the speaker would need to displace to produce the same acoustic pressure. A correctly calculated Vas helps determine the optimal enclosure volume for cabinet construction, thus achieving the best sound. It is a critical factor in developing the right enclosure for the speaker, significantly affecting sound quality.

What role does the mechanical quality play in the Competition GZCK 165XSPL-II?

The mechanical quality (Qms) of the Competition GZCK 165XSPL-II is 9.12, indicating the ability of the speaker's mechanical structure to dampen vibrations. A high Qms value may indicate a well-constructed mechanical suspension that minimizes unwanted movements and improves sound reproduction accuracy. In combination with the electrical quality factor (Qes), Qms influences the total quality (Qts), which is crucial for the speaker's behavior in the enclosure. Optimal tuning ensures minimized distortion and maximized sound fidelity.

What compatibility does the Competition GZCK 165XSPL-II offer with common car models?

Since no specific car brands are mentioned in the description of the Competition GZCK 165XSPL-II, the compatibility assessment focuses on the installation dimensions. With a nominal diameter of 165 mm and an installation diameter of 145 mm, the speaker is suitable for standard speaker openings in many modern vehicles. However, the installation depth of 72 mm requires that this depth is adequately accommodated in the car. Vehicle manufacturers are looking for solid and compatible retrofit solutions, so they should check the dimensions before installation to ensure an optimal fit.

Manufacturer information/responsible person

Ground Zero GmbH
Erlenweg 25
85658 Egmating, Germany

Tel +49 (0)8095 873 830

E-Mail: info@ground-zero-audio.com

Your advantages with Masori


  • 3-year warranty

    Exclusive to Masori

    Extra reassurance with the Masori warranty. See the warranty terms for coverage, requirements and exclusions.

    Learn more
  • Price guarantee

    Your price advantage

    Found a comparable offer for less? Our price guarantee explains when and how we match the price.

    Learn more
  • Pay in instalments

    Klarna & PayPal

    Spread your payments where this option is offered for your country and purchase. The provider shows availability, terms and any costs.

    Learn more
  • Customer reviews

    Real experiences

    Other customers’ experiences can help you decide. Store reviews and reviews of this product are shown separately.

    Learn more
  • An upgrade for your car and budget

    Advice by email

    We consider your car, existing sound system and budget to help you choose suitable components. If fitment is unclear, ask us by email.

Recently viewed products