Rockford Fosgate RFA-514 - Manual (Page 6)

◆ 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
.
◆ 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.
Midrange Features
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