3. Mid-woofers for beginners
  5. Radioactive GZRK 165SQX

Radioactive GZRK 165SQX

120 Watt

Radioactive GZRK 165SQX

Technical Highlights

  • Highly efficient 3 Ohm version, 25 mm voice coil, clear sound.
  • Anodized aluminum diaphragm, low-resonance steel basket, 165 mm size.
  • Nomex centering spider, gold-plated solder terminals, including protective grille.
  • More technical details
€113.05
-5% €119.00 €113.05
2% discount with credit card

Your price match offer

ProductRadioactive GZRK 165SQX

Reply within 1–3 working days · Mon–Fri. Outside the EU, we are happy to review an individual offer.

Privacy

This website is protected by hCaptcha. The privacy policy and terms of service of hCaptcha apply.
including VAT
Estimated delivery: Sep 15–Sep 18.
x pair
  • American Express
  • Apple Pay
  • Bancontact
  • BLIK
  • EPS
  • Google Pay
  • iDEAL Wero
  • Maestro
  • Mastercard
  • MobilePay
  • PayPal
  • Shop Pay
  • Twint
  • Union Pay
  • Visa

Delivery & availability

The selected variant is not currently in stock at Masori and is sourced from the supplier. Refer to the estimated delivery window above.

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.

Email us the product, car, existing system and budget. We will offer an alternative available sooner.

Ask for an alternative available sooner

Reply in 1–3 working days · Mon–Fri

1 year extra warranty

Every product purchased from Masori includes an additional year of warranty in the third year after purchase (months 25–36). We cover repair or replacement free of charge for covered warranty claims. Automatic and free – exclusively for Masori customers. Your statutory rights remain unaffected.

Warranty terms
datasheet
Ground Zero-Radioactive GZRK 165SQX-6.5" (16,5cm) Tiefmitteltöner-masori-kaufen
€113.05
€119.00 €113.05

The Radioactive GZRK 165SQX from Ground Zero is a 6.5-inch midrange speaker with a high-power design measuring 165 mm. The model features a black anodized aluminum diaphragm and a 25 mm voice coil. A resonance-optimized steel basket forms the basis of the construction, which also includes a Nomex spider and a linearized drive. The power handling is rated at 110 watts RMS and reaches a maximum of 160 watts. The impedance is specified in a highly efficient 3-ohm version. The delivery includes a pair of these speakers with matching protective grilles. Gold-plated solder terminals are used for connecting the components.

Features
  • 6.5-inch (16.5 cm) midrange speaker
  • Black anodized aluminum diaphragm
  • 25 mm voice coil
  • Nomex spider
  • Resonance-optimized steel basket
  • Linearized drive
  • Includes protective grilles
  • Gold-plated solder terminals
  • Packaging unit: 1 pair
Technical Specifications
  • Power handling: 110 watts RMS
  • Power handling: 160 watts maximum
  • Impedance: 3 ohms
  • Efficiency: 89 dB
  • Frequency response: 35 Hz – 4 kHz
  • Mounting diameter: 142.5 mm
  • Mounting depth: 68 mm
  • Resonance frequency: 60.1 Hz

Frequently Asked Questions about Radioactive GZRK 165SQX

What characterizes the anodized aluminum membrane of the Radioactive GZRK 165SQX?

The anodized aluminum membrane of the Ground Zero Radioactive GZRK 165SQX delivers excellent sound performance due to its rigid structure, which minimizes vibrations and allows for clear, precise tones. The black anodization not only provides an elegant look but also contributes to durability by protecting the membrane from corrosion. This combination offers powerful performance with minimal distortion, ensuring that even the finest nuances of the music are reproduced accurately.

How does the resonance-optimized steel basket affect the performance of the Radioactive GZRK 165SQX?

The resonance-optimized steel basket of the Radioactive GZRK 165SQX from Ground Zero enhances the stability of the entire system by reducing unwanted resonances that could distort the sound. This robust construction stabilizes the woofer, especially at intense bass frequencies, resulting in clean sound reproduction that showcases the full performance spectrum. Efficiency is improved as sounds are reproduced with less distortion and greater dynamics.

What role does the 25 mm voice coil play in the Radioactive GZRK 165SQX?

The 25 mm voice coil of the Radioactive GZRK 165SQX is crucial for the high-power output of this speaker. This larger voice coil allows for greater thermal capacity, meaning the speaker remains stable even at higher power levels. The precise winding around the drive ensures linear movement of the membrane, minimizing distortion and achieving clean sound at impressive volume levels. This is particularly important for demanding applications or in hi-fi environments.

What technical advantages does the Nomex spider provide in the Radioactive GZRK 165SQX?

The Nomex centering spider in the Radioactive GZRK 165SQX ensures stable and precise alignment of the oscillation system. Nomex is known for its heat resistance and exceptionally high strength, guaranteeing reliability in demanding operating environments. This spider allows the voice coil to remain precisely in position even during intense power peaks, which not only extends the lifespan of the speaker but also ensures consistently high sound quality.

How does the linear drive support sound quality in the Radioactive GZRK 165SQX?

The linear drive of the Radioactive GZRK 165SQX ensures uniform, rapid responses of the speaker to the audio input. This design minimizes distortion, especially at low frequencies, providing a clean, clear sound across the entire frequency spectrum. The drive allows the speaker to deliver stable performance even under high load by controlling and precisely moving the diaphragm, which is particularly beneficial for dynamic music playback.

What impact does the high-efficiency 3 Ohm version have on the Radioactive GZRK 165SQX?

The high-efficiency 3 Ohm version of the Radioactive GZRK 165SQX enables improved output performance, as the speaker interacts more efficiently with amplifiers typically designed for 4 or 8 Ohm. This lower impedance ensures that more power from the amplifier is utilized, leading to increased volume and better sound quality. Especially if you enjoy listening to music loudly, you will find that performance is maximized without loss of quality.

How is the installation of the Radioactive GZRK 165SQX in the car done?

The installation of the Radioactive GZRK 165SQX can be easily accomplished due to its dimensions of 165 mm in most standard door openings of mid-range vehicles. The speaker comes with a protective grille that provides additional safety during installation. When installing, attention should be paid to the gold-plated solder connections to ensure a durable electrical connection. Additionally, the resonance-optimized steel basket ensures a stable mounting that minimizes vibrations.

What advantages do the gold-plated solder connections offer in the Radioactive GZRK 165SQX?

The gold-plated solder connections of the Radioactive GZRK 165SQX ensure a durable and corrosion-free connection that optimizes signal transmission. Gold is an excellent conductor and enhances the electrical connection, leading to a clean transmission of audio signals. This is essential to minimize potential sound loss, thereby guaranteeing the best possible sound quality. Additionally, this also brings the advantage that the connections have a longer lifespan, even under demanding conditions.

Can the Radioactive GZRK 165SQX be used in all vehicles?

The Radioactive GZRK 165SQX, with its dimensions of 165 mm, is relatively universally applicable for most vehicle doors. It is important to check the speaker openings of your specific vehicle before installation to ensure they support the design. Due to its highly efficient 3 Ohm configuration and gold-plated solder connections, the speaker is particularly suitable for high-quality audio systems or Hi-Fi upgrades in various vehicle models with standardized speaker cutouts.

What makes the protective grille of the Radioactive GZRK 165SQX special?

The protective grille that comes with the Radioactive GZRK 165SQX provides physical protection for the diaphragm against damage from external impacts. It is especially useful for protecting the delicate speaker during installation or everyday use. The grille design is crafted to allow sound to pass through unobstructed while simultaneously ensuring stability and safety. This combination maximizes both the sound quality and the lifespan of the speaker.

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

  • Price guarantee

    Your price advantage

  • Pay in instalments

    Klarna & PayPal

  • Customer reviews

    Real experiences

  • An upgrade for your car and budget

    Advice by email

Recently viewed products