Pair of MB Quart FKB108 3.5 inch coaxial speakers, front view
Pair of MB Quart FKB108 3.5 inch coaxial speakers, front view
Side view of an FKB108 showing the frame, red magnet ring and tweeter
Side view of an FKB108 showing the frame, red magnet ring and tweeter
Rear of an FKB108 with the MB Quart Formula label on the magnet
Rear of an FKB108 with the MB Quart Formula label on the magnet
Single FKB108 3.5 inch speaker front on
Single FKB108 3.5 inch speaker front on
FKB108 rear magnet label on a light stone background
FKB108 rear magnet label on a light stone background
FKB108 front view on a timber background
FKB108 front view on a timber background
Two FKB108 speakers on a dark grey surface
Two FKB108 speakers on a dark grey surface
Side profile of an FKB108 in a workshop setting
Side profile of an FKB108 in a workshop setting
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MB Quart FKB108 Formula 3.5" 2 Way Coaxial Speakers

SKU: MBQFKB108
Price
$69
Inc. GST. Most orders ship Australia wide for a flat $15.95. Larger or heavier items may cost more.
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Shipping information

Australia wide flat rate shipping is $15.95. Larger or heavier items may cost more; we will confirm when your order is processed. In stock items are dispatched within 1 to 2 business days. Report transit damage within 24 hours with photos so we can lodge a freight claim.

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Pair of MB Quart FKB108 3.5 inch coaxial speakers, front view

MB Quart FKB108 Formula 3.5" 2 Way Coaxial Speakers

$69

Product features

Small 3.5 inch dash speakers in many cars are thin paper cones that buzz on vocals. The MB Quart FKB108 replaces them with a 2 way coaxial using an aluminium dome tweeter and butyl rubber surround.

Problems it solves

  • Tinny dash speakers. A separate aluminium dome tweeter carries the top end.
  • Frames that flex and buzz. Heavy gauge progressive die stamped steel frames keep the speaker rigid.
  • Tight space behind the dash grille. The ferrite motor is small enough for most 3.5 inch spots.

FKB108 specifications

  • Size: 3.5 inch, 2 way coaxial
  • Sensitivity: 88dB
  • Frequency response: 80Hz to 20kHz
  • Crossover: 6kHz at 12dB
  • Cut out: 3.41 inch
  • Outside diameter: 5.39 inch
  • Mounting depth: 1.5 inch
  • Colour: black

Fitment and compatibility

Suits 3.5 inch dash or door locations with a 3.41 inch cut out and 1.5 inches of depth. Check your factory mount tabs line up before fitting.

What is in the box

MB Quart does not publish a carton list for the FKB108. Ring Albion Park Rail on (02) 4257 2636 if you want the box contents checked.

Install notes

Use spade connectors or solder the leads directly, as MB Quart suggests. Tinsel leads stay flexible if the speaker moves.

Warranty

This comes with the manufacturer's warranty through the Australian distributor. See the manufacturer's terms for details, plus our guarantees under the Australian Consumer Law.

FKB108 FAQs

How deep can the FKB108 go behind a dash grille?

1.5 inches of mounting depth.

What material is the FKB108 tweeter dome?

Aluminium, crossed over at 6kHz with a 12dB slope.

How do I connect FKB108 speakers?

Spade connectors or solder straight to the terminals.