Technical Highlights

  • Power 350 Watts RMS, Impedance 4 Ohms, Wooden enclosure.
  • Bass reflex enclosure, 30 cm Subwoofer, Clamp connection.
  • Subwoofer GZIW 30, EFP Front channel, 37 L volume.
  • More technical details
Regular price €199.00
Regular price €199.00 selling price €199.00
2% discount with credit card

Your price match offer

ProductIridium GZIB 30BR

including VAT
Estimated delivery: Sep 16–Sep 21.
x piece
  • 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
Regular price €199.00
Regular price €199.00 selling price €199.00

Iridium GZIB 30BR from Ground Zero is a 12 inch 30 cm Enclosed Subwoofer with a passive bass reflex enclosure, angled rear wall, and EFP front channel. The integrated Subwoofer GZIW 30 with a diameter of 30 cm operates at 4 Ohms. The power handling is 350 Watts RMS. The net volume is 37 L. The enclosure is made of wood and utilizes a front bass reflex tunnel. The connection is made via terminals. The dimensions are 460 x 320 x 327/255 mm W x H x D1/D2.

Features
  • 12 inch Enclosed Subwoofer
  • Passive bass reflex enclosure
  • EFP front channel
  • Angled rear wall
  • Front bass reflex tunnel
  • Wood enclosure
  • Terminal connection
  • 30 cm Iridium Subwoofer GZIW 30
Technical Specifications
  • Diameter 30 cm
  • Power handling RMS 350 Watts
  • Impedance 4 Ohms
  • Net volume 37 L
  • Dimensions W x H x D1/D2 460 x 320 x 327/255 mm

Frequently Asked Questions about Iridium GZIB 30BR


What is the power rating of the Iridium GZIB 30BR Subwoofer?

The Iridium GZIB 30BR from Ground Zero has an RMS power handling of 350 watts at an impedance of 4 ohms. These power characteristics allow this Enclosed Subwoofer to produce deep and powerful bass frequencies. Thanks to the angled rear wall and an EFP front channel, the sound output and bass performance are further optimized. This device can deliver an undistorted sound image even at high volumes, making it ideal for music lovers who value detailed bass reproduction.

What are the features of the enclosure of the Iridium GZIB 30BR?

The Iridium GZIB 30BR Subwoofer is housed in a passive bass reflex enclosure that includes a 30 cm Iridium Subwoofer. With a front bass reflex tunnel and a sturdy wooden enclosure, exceptionally precise and powerful bass reproduction is ensured. The wooden material helps minimize enclosure resonances, thereby improving sound quality. Additionally, the enclosure, with a net volume of 37 liters, provides optimal airflow for generating powerful bass. The angled rear wall supports systematic placement in the vehicle.

What are the dimensions of the Iridium GZIB 30BR Subwoofer?

The Iridium GZIB 30BR has dimensions of 460 mm in width, 320 mm in height, and a depth of 327 mm at the top and 255 mm at the bottom. These dimensions allow for flexible integration into various vehicle models without significant loss of trunk space. The angled rear wall is particularly practical during installation, as it supports installation in sloped trunk areas. The precise design of the enclosure significantly enhances the sound performance of the Subwoofer.

Which Subwoofer is integrated into the Iridium GZIB 30BR?

The Subwoofer inside the Iridium GZIB 30BR is the GZIW 30. This 30 cm Subwoofer is known for its excellent sound capability and robustness. With an impedance of 4 Ohms and a power handling of 350 Watts, it offers remarkable sound power. The interaction with the enclosed bass reflex housing allows for the generation of deep, rich bass that fully captivates the listener. In particular, the front bass reflex tunnel included in the housing improves the efficiency of the bass reflex opening, further enhancing pressure and sound power.

How is the connection of the Iridium GZIB 30BR designed?

The Iridium GZIB 30BR is equipped with a clamp connection that allows for a secure and stable connection to the vehicle's audio system. Such a clamping mechanism not only ensures a smooth connection process but also provides a firm fit for the cables, minimizing sound losses. This type of connection also helps to minimize interference, as the cable routing is firmly fixed. This ensures reliable signal transmission, which is particularly important at high bass frequencies to avoid distortion.

How does the net volume of the Iridium GZIB 30BR affect the sound?

The net volume of the Iridium GZIB 30BR is 37 liters, which significantly contributes to sound quality. This carefully tuned enclosure volume enables efficient airflow, which is essential for precise and effective bass reflex action. Such a housing construction is not only crucial for sound performance but also enhances the depth and clarity of low-frequency reproduction. Thus, the Subwoofer delivers powerful bass performance that rounds out even demanding music playback.

What influence does the EFP front channel have on bass performance?

The EFP (Enhanced Function Port) front channel of the Iridium GZIB 30BR has a significant influence on bass performance by optimizing airflow within the enclosure. This front-mounted port reduces distortions that can arise from the bass reflex opening and increases the efficiency of sound output. This results in powerful and clear bass lines that remain intact even at high volumes. Especially in music genres with a pronounced bass component, the excellent performance of the EFP channel is evident, making the sound more powerful and providing a full, rich sound depth.

Are there any restrictions on the placement of the Iridium GZIB 30BR?

Due to the angled rear wall of the enclosure, the Iridium GZIB 30BR offers flexible placement options, especially in vehicles with sloping trunk floors. The installation dimensions are: 460 mm width, 320 mm height, and 327/255 mm depth, which should fit most common car types. However, installation should be done in a way that does not cover the bass reflex opening to avoid impairing acoustic performance. Additionally, it is important to ensure that the Subwoofer is securely installed to maintain stability while driving.

What materials were used for the enclosure of the Iridium GZIB 30BR?

The enclosure of the Iridium GZIB 30BR is made of high-quality wood, which is crucial for the robustness and stability of the Subwoofer. Wood is an excellent material for reducing enclosure resonances that could negatively affect sound reproduction. The use of sturdy wooden structures ensures that structural integrity is maintained even at high volume levels, while also allowing for a more natural-sounding bass reproduction. Furthermore, the wooden construction contributes to the durability of the enclosure, even under demanding conditions and vibrations in the car.

How does the front bass reflex tunnel of the Iridium GZIB 30BR support bass sound?

The front bass reflex tunnel of the Iridium GZIB 30BR is responsible for efficiently directing the airflows generated by the Subwoofer. This helps produce powerful deep bass with minimal distortion. The tunnel acts as a channel that releases air pressure in front of the enclosure while reducing excessive vibrations that could affect the sound. This design allows the Subwoofer to deliver significantly enhanced output performance, which is particularly effective with electronic music or cinematic projections that benefit from deep bass.

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