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500W 8" APMB Series Indoor/Outdoor Midrange Driver

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500W 8" APMB Series Indoor/Outdoor Midrange Driver


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Pro Audio Quality in Your Car

The Audiopipe APMB series speakers were designed to produce pro audio quality sound in your car. These outstanding speakers thoughtfully engineered to handle significant amounts of amplified power, resulting in clean, crisp sound reproduction. Ideal for virtually any application, the APMB series is meant to let you take your music with you and show off your system in any kind of environment and each speaker in the series has it's own unique purpose. Hear more than just bass with the APMB series pro audio speakers!

Survive the Elements Durable Carbon Fiber Cone for Outdoor Use

Audiopipe want's you to be able to use your car's sound system in any kind of environment, and the 8CF Indoor/Outdoor speakers are perfect for showing your system off at the beach, park or any other outdoor setting. The lightweight, durable carbon fiber cones are designed for linear movement and to prevent cone fluctuation for the highest quality sound possible.

Classic Sound Dust Cap Sound Quality and Protection

Utilizing the classic dust cap design, the 8CF speaker retains the original shape and form of a loudspeaker while providing the overall most impressive and best sounding of all speaker types. The durable carbon fiber dust cap also keeps the internal components of your speaker free of dust and other sound diminishing particles, ensuring your sound will stay in peak form.

Item Condition: Like New

  • Like new Damaged Package:
    • General Features:

      • 8" APMB Series Midrange Driver
      • Power Handling:
        • Peak: 500 watts
        • RMS: 250 watts
      • Low mid frequency loudspeaker
      • Loudspeaker design provides pro audio quality sound in your car
      • Carbon fiber cone allows you to open up your car and play music outdoors
        • Ideal for use at the beach, park or any other outdoor gathering
      • Corrugated surround
      • Classic dust cap design to protect the internal speaker components
      • Heavy duty 38 oz. magnet
      • Durable 1.5" KSV voice coil
      • 8 ohms impedance
      • Frequency Response: 60-15,000 Hz
      • Top-mount Depth: 3-21/32"
      • Mounting Diameter: 7-1/4"
      • Sensitivity: 92.6dB
      • Authorized Internet Dealer
      • 1-year Manufacturer's Warranty


      • FS (Free Air Resonance): 67 Hz.
      • RE (DC Resistance): 6.3 ohms
      • Le (Voice Coil Inductance): 0.36 mH
      • QMS (Mechanical Q Value): 3.3
      • QES (Electrical Q Value): 0.48
      • QTS (Total Speaker Q Value): 0.42
      • VAS (Equivalent Compliance): 16 L (0.56 cu ft.)
      • Xmax (One-Way Linear Excursion): 1.5mm (0.06")
      • F3 (for Sealed Enclosure):
        • 0.5 cu ft.: 78 Hz
        • 0.8 cu ft.: 72 Hz
      • F3 (for Vented Enclosure):
        • 0.6 cu ft.: 62 Hz

      Priced Per Speaker

    Speaker Specifications

    This is the manufacturer product line of speakers.
    APMB (Audiopipe)
    Priced Per
    Car Speakers are typically sold in pairs so you will receive 2 speakers for each speaker purchase on speakers marked "Priced Per Pair". If a speaker is marked "Priced Per Each" then the speaker is sold individually and each purchase you make will result in 1 speaker. High-powered tweeters, midrange and full-range pro audio for car speakers are typically sold per each speaker.
    Each Speaker
    Speaker Size
    Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
    The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
    Midrange (Midwoofer)
    Woofer Composition
    Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
    Carbon Fiber
    Woofer Surround
    A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
    Peak Power Handling
    Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
    500 watts
    RMS Power Handling
    The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
    250 watts
    An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
    Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
    92.6 dB
    Frequency Response
    The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
    60 - 15000 Hz
    Impedance (Per Voice Coil)
    The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
    8 ohms
    Top-Mount Depth
    The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
    Cutout Dimensions
    Refers to the dimensions of the hole, measured in inches, required to contain the speaker.
    Hi-Res Audio Compatible
    This feature refers to if the product is capable of Hi-Res Audio (HRA) playback.
    Speaker Grilles
    A grating or screen of metal or plastic bars or wires, mounted in front of a speaker as protection. If yes, the speakers will include matching speaker grilles. If no, there are no grilles included.
    Number of Speakers
    This is the number of speaker that is included in the package. Each purchase will result in receiving the number of speakers indicated here. Please note that some items will have multiple woofers in the same enclosure. For sets of component speakers, this number will refer to the number of sets of speakers (For example, 2 would indicate the purchase includes 2 woofers and 2 tweeters).

    Please refer to the product image and description for further details about the speaker.

    Warranty and Return Policy

    Parts Warranty Duration
    1 year
    Labor Warranty Duration
    1 year
    Warranty Provider

    Summary of Customer Ratings & Reviews

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    Product Summary


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    Sonic Electronix Wiring Guide

    Wiring Diagram Legend

    Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.