FOCAL ISUB BMW 8 Subwoofer User Manual

August 13, 2024
FOCAL

FOCAL ISUB BMW 8 Subwoofer

Product Usage Instructions

The speaker driver is designed for faithful sound reproduction. Follow these rules for optimal performance:

  • Place the speaker drivers in the dedicated OEM locations.
  • Refer to illustrations for proper positioning.
  • Installation details may vary by model. Watch online assembly tutorials for guidance. Use Focal B.A.M. acoustic insulation kit for better system performance and sound quality.
  • Door Trims: Place removed door trims on a protective surface to avoid damage.
  • Maintenance: Dust with a dry cloth; use a damp cloth if the grille is marked. Avoid solvents, detergents, alcohol, scrapers, or scouring utensils.
  • Running-in Period: Operate speaker drivers for about 20 hours at moderate volume for optimal performance.

FAQ

  • How do I register my product for the Focal-JMlab warranty?
  • To register your product online, visit www.focal.com/garantie and follow the instructions provided.
  • What is the purpose of the running-in period for the ISUB BMW 8 speaker drivers?
  • The running-in period allows the complex mechanical components to operate at their best by stabilizing their characteristics. It is recommended to run the speaker drivers for about twenty hours at a moderate volume to achieve optimal performance.
  • Can I clean the speaker drivers with solvents or alcohol?
  • No, it is advised not to use solvents, detergents, alcohol, or corrosive products to clean the speaker drivers. Simply dust with a dry cloth and use a damp cloth if necessary.

Specifications

ISUB BMW 8

  • Type: Subwoofer
  • Max. power: 180W
  • Nom. power: 90RMS
  • Sensitivity (2.83V/1m): 89dB
  • Frequency response: 35Hz – 200Hz
  • Impedance:
  • Woofer: 8″ (200mm)
  • Depth: 1 1/8″ (29mm)
  • Cone: Polyglass
  • Motor: Neodymium
  • Surround: Butyl

Package Content

Overview

BMW, BMW i4, and Serie 4 are registered trademarks of Bayerische Motoren Werke Aktiengesellschaft.

IMPORTANT SAFETY INSTRUCTIONS

Warning symbol. This symbol is designed to warn the user of the presence of important instructions mentioned in the user manual and relating to the handling, operation and maintenance of the device.

  1. Read these instructions.
  2. Keep these instructions.
  3. Heed all warnings.
  4. Follow all instructions.
  5. Do not use this device near water.
  6. Only clean with a dry cloth.
  7. Do not install or store the amplifier in the engine compartment or near a heat source.
  8. If the product is installed in the boot of a vehicle, make sure the boot is watertight.
  9. The device should not be exposed to temperatures above 55°C.
  10. Ensure you leave a 2cm space around the device to allow heat exchange.
  11. If the product emits smoke or an unusual smell, immediately turn off the power supply (turn off the ignition and remove the key) and stop using it. Contact your retailer as soon as possible.
  12. Do turn on any function likely to distract you when driving. Any actions or adjustments that require more in-depth attention must only be made when the vehicle is at a complete stop. There is a risk of an accident.
  13. Do not listen to the loudspeakers at a high volume, so that you can hear external noise when driving.
  14. If cords or connectors are supplied, use them properly as described in the user manual without substituting them or modifying them.
  15. If the kit or connector includes a fuse, it must only be replaced by a fuse of the same rating.
  16. Do not attempt to repair this device yourself. Opening the device may be dangerous. Contact a qualified professional for all work on the device.
  17. Refer all servicing to qualified service personnel. Servicing is required when the device does not operate normally or has been damaged in any way, for example: the power cable or plug has been damaged, liquid has been spilled onto the device, objects have fallen into the device, the device has been exposed to rain or moisture or has been dropped.
  18. When replacement components are needed, only use the components specified by the manufacturer or components with identical specifications to the original. Using non-compliant components could cause fires, electric shocks or other risks.
  19. After any maintenance or repair work on the device, test it to check that it is working safely.
  20. If a subwoofer is installed in the vehicle, it is essential to secure it by attaching it solidly. We recommend attaching the enclosure to the floor or chassis of the vehicle for safety. If it is not properly secured, it could become a projectile in the event of an accident. This is even more important if the subwoofer is installed in a hatchback, a station wagon, a utility vehicle or a van.
  21. After removing the product from its packaging, keep the packaging out of children’s reach. It could present a suffocation risk.
  22. Some users who are not self-sufficient enough to use the product on their own without danger. In particular, children under 14 or people with some types of disabilities must be supervised and/or accompanied when using the device.
  23. To avoid damaging your hearing, do not listen to loudspeakers at high volumes for long periods. Listening to loudspeakers at an excessive volume can cause damage to the user’s ears and may lead to hearing problems (temporary or permanent deafness, buzzing in the ears, tinnitus, hyperacusis). Exposing your ears to a volume higher than 85dB SPLLAeq for several hours can irreversibly damage your hearing.

The methods of installing and mounting loudspeakers to any surface (vehicle floor or chassis) depend on the conditions and standards of installation, refurbishment, safety and cabling in force and applicable to the surfaces and/or brackets involved. In addition, the products may vibrate and damage the brackets onto which they are mounted. For this reason, the installation operations must be performed by a qualified professional who is familiar with installation and safety standards.
Focal does not provide any end-of-use warranty for a given bracket or installation, as installing the loudspeakers is the customer’s sole responsibility. Focal is therefore not liable in any capacity whatsoever in the event of an incident, accident and/or any other result or damage of any kind related to the installation of loudspeakers.

To facilitate the Focal-JMlab warranty, it is now possible to register your product online at: www.focal.com/warranty

Thank you for purchasing a Focal product. Welcome to our High-Fidelity world. Innovation, tradition, excellence and pleasure are our values; our only aim is to bring you a sound that is rich, pure and true. To get the most out of your product, we recommend that you read the instructions in this booklet, and then store it in a safe place to refer to in the future.
For your safety, follow the assembly instructions provided in this user manual.

Equipment required

  • 3/8” (10mm) hex socket wrench or T10 Torx screwdriver;
  • T20 Torx screwdriver;
  • PH1 x 100 Phillips screwdriver;
  • T50 ratchet wrench;

Important recommendations
This speaker driver has been designed to be fitted in the factory location. Check that there is sufficient space between the speaker driver and the protective grille.

  • Keep the speaker driver clear of any metal shavings and dust particles during the cutting process.
  • Clean thoroughly before fitting the speaker driver.
  • Ensure that nothing is covering the grille, as this could damage the speaker driver.
  • For the electrical disconnection, use the connector. Do not pull on the wires.
  • Unclipping and reclipping the various parts must be done carefully.
  • Excessive force may damage them.

Product positioning
The speaker driver has been designed to deliver the most faithful sound reproduction for any style of music. Nonetheless, a few simple rules should be followed to optimize their performance and to guarantee good tonal balance and a realistic sound image. We recommend placing the speaker drivers from the kit in the dedicated OEM locations (see illustrations).

Installation

  1. Identify the location of the speaker driver within the vehicle.
  2. Carefully disconnect and disassemble the original speaker driver.
  3. Fit the Focal speaker driver into the vehicle’s factory locations then connect it.

Installation details may vary depending on the model. We recommend watching our online assembly tutorials. To improve the performance of your system and eliminate parasitic sounds, we advise you to use the Focal B.A.M. acoustic insulation kit. Focal.

SPECIAL PRECAUTIONS

Door trims

  • Once the door trim has been removed, be sure to place it on a protective surface to avoid damaging it or the cables.

Maintenance

  • To look after the ISUB BMW 8 speaker drivers, simply dust them using a dry cloth. If the grille is marked, use a damp cloth. Never use solvents, detergents, alcohol or corrosive products, scrapers or scouring utensils to clean the surface of the speaker drivers.

Running-in period
The ISUB BMW 8 speaker drivers are complex mechanical components that require a running-in period to operate at their best. This running-in period varies depending on the conditions in question and may take several weeks. To reduce this time, we recommend operating the speaker drivers for about twenty hours at a moderate volume. Once the speaker drivers’ characteristics have fully stabilised, you will be able to enjoy the performance of your products to the fullest.

For improvement or to take into account any legal or regulatory changes, FOCAL-JMLab reserves the right to modify the technical specifications of its products without prior notice. Where required, any images shown are for illustrative purposes only, and may differ slightly from the products sold.

Warranty terms and conditions
All Focal loudspeakers are covered by a warranty drawn up by the official Focal distributor in your country. Your distributor can provide all the details concerning the conditions of a warranty. Warranty cover extends at least to that granted by the legal warranty in force in the country where the original purchase invoice was issued.

Correct elimination of this product.
This marking indicates that within the EU this product should not be disposed of with other household wastes. To prevent any risk to the environment or human health, please recycle them responsibly to encourage the reuse of material resources. To return your used device, please use the return and collection systems available, or contact the retailer where you purchased the product. They can recycle this product safely.

CONTACT

  • Focal-JMlab® – BP 374 – 108, rue de l’Avenir – 42353 La Talaudière cedex – France – www.focal.com
  • Tel. (+33) 04 77 43 57 00 – SCCV – 27/05/2023 – v1

References

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