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I51-2 Two-Way Component and Coaxial System

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Availability: In stock


Quick Overview

Midbass Parameters:

Parameter - 5 .-inch Midbass
Overall Diameter - 6-inch (150 mm)
Mounting Depth - 2.75-inch (70 mm)
Mounting Hole - 4.85-inch (123 mm)
Recommended Minimum Crossover Frequency - 65 Hz
Pnom Rated Power Input (No Crossover) - 25 watts (AES Standard)
Pmax Rated Power Input (No Crossover) - 50 watts (AES Standard)
Pmax (With Recommended Minimum Crossover) - 175 watts
Frequency Range - 55 . 11,000 Hz +/- 4.5 dB
Sensitivity - 91 dB at 2.83 V/1meter
Mms - 8.9 g
Cms - 489 ƒÊM/N
BL - 5.5 T*m
Voice Coil Diameter - 25 mm (1-inch)
Impedance - 4 R
DC Resistance - 3.4 S
Fs - 76 Hz
Qms - 3.3
Qes - 0.468
Qts - 0.424
Xmax - 9 mm (two way)
Vas - 5.2 L
Sd - 8.659 mM2

I51-2 Two-Way Component and Coaxial System

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welcome to the world of Hybrid Audio Technologies, where high-end mobile audio loudspeaker development is our passion! When installed and set-up properly, the Imagine component system you have purchased will make a remarkable improvement in the sound quality of virtually any mobile audio sound system and give years of superior performance. The I51-2 is a 5.25" two-way coaxial and convertible component set. All of the Imagine products boast a unique coaxial and convertible component set design allowing for wide-variety of installations where the end user can choose between coaxial mounting and component set mounting. The Imagine kits also all have our proprietary cone treatment that makes the Imagine products the only truly water-proof paper cones on the market. Midbass Speakers (Imagine I5): Frame - Cast ABS plastic: The basket is a high-quality cast ABS design, which plays a critical role in aligning the voice coil in the magnetic circuit. Additionally, the cast ABS frame allows for better clamping strength verses typical stamped steel frames, and ensures that the voice coil remains centered in the former. Cone - Pressed paper: with water proof treatment, Hybrid Audio Technologies believes that the pressed paper cone is the best marriage of lightness, stiffness, and ability of the cone to damp unwanted cone and edge modes and resonances (read: distortion). All of our designs use pressed paper cones. The paper cone, known for its excellent sonic attributes, is water proof, thanks to a polymer developed exclusive and is proprietary to Hybrid Audio Technologies. The treatment does not change the look and parameters of the driver like old-fashioned “glossy” polymers which added an appreciable amount of moving mass and significantly colored the sound. No, the Imagine cones look like any “normal” paper cone, but in reality are likely the only high-performance water proof paper cone car audio speaker systems on the market. The treatment protects the cone from periodic drips (such as inside a door panel), as well as accidental splashes to the front of the cone. Phase Plug - Cast ABS plastic: When using the midbass in component set mode, the tweeter pole piece is replaced with an ABS extended phase plug pole piece. The extended phase plug pole piece is critical for focusing high-frequency information at the center of the cone. This design ensures the speaker’s response remains linear into the lower- to mid-treble frequencies. Surround - Inverted high-loss rubber surround: The inverted high-loss rubber surround (in concert with the spider, detailed below), helps to provide the compliance and “restorative force” needed for the Imagine drivers to play effectively into the lower midbass, and even upper subbass frequencies (depending on in-car cabin gain and other factors). You'll also know a Hybrid Audio midrange and midbass design by its inverted surround; this design feature allows for the use of a smaller height grille, better clearance with OEM panels, and more flexibility in mounting options. Spider - Phenolicized fabric and tinned tinsel leads: The spider is the brownish/yellow corrugated (rippled) fabric that attaches the cone and voice coil. The spider for the Imagine designs was the subject of a considerable amount of our research and development. The spider is a phenolic symmetrically-rolled fabric which provides excellent restorative force during excursion. The spider is vented courteous of the speaker frame; a design element not typically found in this price range of speaker system. The spider venting increases the thermal power handling of the I5 driver. The tinsel leads are connected to real epoxy PCB, not flimsy cardboard Voice Coil and Motor System - 25mm Complimentary design: The voice coil used in the I5 midbass is a 2-layer aluminized copper wire coils on a round former. An “overhung” voice coil was selected to improve sensitivity while still keeping distortion to a minimum.

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