CONNECTING TO THE POWER AMPLIFIER
The subwoofer should be connected to an external power amplifier in every case. This
can provide the required electrical power and create corresponding dynamic reserves.
The relevant instructions also contain the customized connection diagram for the
operation of a subwoofer.
The basic equipment of a power amplifier also includes an active crossover switch (low-
pass) to keep undesirable mid-tone ranges away from the subwoofer.
ADDITIONAL PASSIVE FILTERS
Should you not have any active filter switching available (e.g. use of a mono-block or tri-
mode two-channel power amp), this function has to be performed by a passive crossover.
Please select your subwoofer’s cutoff frequency and wire the components as follows.
Cutoff frequency Subwoofer Coil L / min. Capacitor C /
cable diameter electric strength
60 Hz 380 mm 15 mH / 1.5 mm² 470uF / 100Vdc
80 Hz 380/300 mm 12 mH / 1.0 - 1.5 mm² 330uF / 100Vdc
90 Hz 300 mm 10 mH / 1.0 mm² 330uF / 100Vdc
110 Hz 300/250 mm 8.2 mH / 0.7 - 1.0 mm² 220uF / 100Vdc
130 Hz 250 mm 6.8 mH / 0.7 mm² 220uF / 100Vdc
160 Hz 250/200 mm 5.6 mH / 0.5 - 0.7 mm² 150uF / 100Vdc
FIG. 3
The use of subwoofers leads to a multiple increase in the dynamics of your audio system.
To safeguard your tweeter systems, we recommend protecting these with an additional
protective condenser (100 - 200uF series-connected in front of the overall mid-tweeter
system).
