Rockford Fosgate PWR-54/58 - Manual (Page 6)

The following section has suggestions for use of the Punch Power
Midrange Speakers in popular system designs. The information pro-
vided includes our model numbers for 6dB and 12dB per octave
passive crossovers and the crossover frequency to use with active
crossovers. These recommendations all offer a satisfactory level of
performance; however, since individual tastes vary, your Authorized
Rockford Fosgate Dealer can help tailor the system to your individual
needs.
PWR-34/44 – Best used for midrange in a 3-way system with a woofer
and tweeter. Model C-100 is the 6dB per octave crossover at 400Hz.
Model MX-124 is the 12dB per octave crossover and allows use down
to 275Hz.
PWR-38/48 – Best used for midrange in a 3-way system with a woofer
and tweeter. Model C-47 is the 6dB per octave crossover at 400Hz.
Model MX-128 is the 12dB per octave crossover and allows use down
to 275Hz.
PWR-54/64 – Can be used as a woofer in a 3-way system or a woofer/
midrange in a 2-way system. The crossover point for use as a woofer/
midrange is determined by the tweeter crossover. Select a crossover
that allows the two speakers to work together without overlapping.
For use as a woofer, use Model TT-2.5 6dB per octave low-pass
crossover at 250Hz.
PWR-58/68 – Can be used as a woofer in a 3-way system or a woofer/
midrange in a 2-way system. The crossover point for use as a woofer/
midrange is determined by the tweeter crossover. Select a crossover
that allows the two speakers to work together without overlapping.
For use as a woofer, use Model TT-5.0 6dB per octave low-pass
crossover at 250Hz.
PWR-408/808 – Best used as midbass speakers in a 4-way system or
as woofers in a 3-way system. In either instance, they require an
enclosure in order to achieve optimum performance. To use for
midbass a 0.25 cubic foot, sealed enclosure will fulfill the high-pass
crossover function at around 100Hz. Use a passive low-pass cross-
over to establish the upper operating limit (usually near 275Hz.)
Woofer operation depends upon a ported enclosure of 1 cubic foot
(for each speaker) using a three inch diameter port, seven inches long
for a 45Hz tuning. This is generally used with a 6dB per octave low-
pass crossover at 100Hz.
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