Rockford Fosgate AudioPhile 2X-4, Owner'S Manual

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Punch AUDIOphile 2x-4
The 2x-4 Crossover is designed to be the "link" between
tweeters, and mid-bass and mid-range speakers. This com-
pact 2-way crossover is designed to conform to the following
criteria:
• 2-Way Crossover network centered at 4kHz
• Uses Linkwitz-Riley 2nd order transfer function (12dB/
octave)
• Additional tweeter filtering uses a series notch filter cen-
tered at 1500Hz to minimize the tweeter's resonant peak
• Also included is an impedance compensation network
(Zobel) that flattens out the gradual impedance rise above
10kHz
• Tweeter protection provided through a special compres-
sion circuit
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