Low-Pass Choke Coil  (400-1326)    Installation       Faxback Doc. # 14186

CONNECTING THE CHOKE COIL

Before you connect the coil, insert a wood screw (not supplied) through
the coil's center hole.  Then, if the speaker has an enclosure, mount the
coil to the enclosure's inside wall.

Caution:  Be sure the screw does not go all the way through the wall.
          This can create an air hole and reduce the speaker's sound
          quality.

You can connect two coils in series to lower the cutoff frequency of the
woofer or subwoofer.  The following chart shows the cutoff frequencies for
different configurations.

   ┌───────────────┬───────────────┬───────────────┐
   │  Speaker      │   Number of   │    Cutoff     │
   │  Impedance    │   Coils       │    Frequency  │
   ├───────────────┼───────────────┼───────────────┤
   │  8 Ohms       │     1         │    300 Hz     │
   │  8 Ohms       │     2         │    150 Hz     │
   │  4 Ohms       │     1         │    150 Hz     │
   │  4 Ohms       │     2         │     75 Hz     │
   └───────────────┴───────────────┴───────────────┘

Note: Be sure the coils are at least 10 inches apart.

(ALL-03/15/95)