Midrange Features

Nitrile Rubber Surround

The nitrile material is resilient to temperature variations and provides a consistent support necessary of the linear motion of the speaker cone, In addition, the inherent damping capabilities eliminates the transmission of sonic disturbances between the cone and the frame of the speaker. This greatly improves the clarity of the speaker's midrange frequency response.

THE RESULT: Improves speaker's frequency response.

Flat Spider

The speaker's linear compliance is balanced through the use of a “proprietary” flat spider design. A flat spider provides symmetrical control of the voice coil through its cone excursion. Linear cone excursion reduces harmonic distortion for improved sound quality.

THE RESULT: Reduces mechanical distortion for better sound quality

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High Temperature Voice Coil

The voice coil is of a high temperature copper wire construction. The wire is wound in two layers on a black, anodized, aluminum voice coil former. The voice coil former dissipates heat away from the voice coil improving the speaker's thermal stability and improving the reliability of the speaker.

THE RESULT: Improves reliability by dissipating generated heat.

Vented Pole Piece

The vented pole piece by design, ensures proper ventilation to cool the voice coil and maintain lower operating temperatures. The vent on the rear of the magnet reduces back pressure and allows cool air to circulate in the voice coil gap. The air circulation increases the thermal power handling of the speaker.

THE RESULT: Improves power handling by cooling the voice coil.

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Rockford Fosgate RFA-514, RFA-414, RFA-614 manual Nitrile Rubber Surround