The MBX138 is a professional-grade 8-inch midbass loudspeaker designed to deliver powerful, punchy low-mid frequencies crucial for a full-bodied audio experience. Featuring a massive 3-inch voice coil, a durable cast aluminum basket, and a substantial 1100 Watts MAX power capacity, this speaker excels in high-output systems, providing deep midbass without sacrificing clarity.
Technical Specifications:
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Nominal Diameter: 8" (203 mm) Octagonal Design.
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Benefit: Ideal size for dedicated midbass installations and the octagonal frame ensures structural rigidity.
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Power Handling: 550 Watts RMS / 1100 Watts MAX / 2200 Watts Peak.
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Benefit: High power capacity guarantees robust and reliable performance, handling intense audio signals with ease.
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Voice Coil: 3" (76.2 mm) diameter with CCAW wire on a Kapton® former.
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Benefit: Oversized, high-temperature voice coil significantly increases power handling and long-term durability.
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Nominal Impedance: 4 Ohm.
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Benefit: Standard impedance simplifies integration with most common car audio amplifiers.
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Sensitivity (1w/1m): 94.5 dB.
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Benefit: High sensitivity efficiently converts amplifier power into loud sound, achieving high volume levels.
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Frequency Response: 105Hz - 7.5KHz.
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Benefit: Optimized range for impactful midbass frequencies and clean lower midrange, adding depth to music.
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Magnet Material: Ferrite Y30 with a weight of 65 Oz.
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Benefit: Heavy-duty magnet assembly ensures superior motor force and precise cone control for dynamic sound.
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Cone/Surround Material: Paper Cone, Cloth Surround, and Paper Dust Cap.
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Benefit: Lightweight yet robust materials provide quick transient response and controlled excursion for accurate midbass reproduction.
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Basket Material: Cast Aluminum.
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Benefit: Rigid frame minimizes structural flexing and resonance, ensuring cleaner, distortion-free output.
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Mounting Depth: 3.78 in (96 mm).
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Benefit: Manageable depth for an 8" professional driver, facilitating custom installations.
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Recommended High Pass Crossover: 136Hz (12dB/Oct.).
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Benefit: Protects the driver from extremely low, damaging frequencies, maximizing longevity and optimizing performance.
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Thiele-Small Parameters (Fs: 87 Hz, Qts: 0.356):
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Benefit: Indicates strong performance in vented or sealed enclosures, allowing for advanced tuning options.
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