High Pass Filter subwoofer if you use a preamp

if you use a preamp without a crossover

Larger ports at a lower tuning than the VTF-3 MK5 HP

Fast forward to 2025

designed for the ultimate home theater experience

High Pass Filter subwoofer if you use a preampWe will customize the Bass Optimizer box to become a 2nd order (12 dB Oct) high pass filter for keeping bass from your main speakers. This prevents the main speakers from straining to do the subwoofer's job in situations where you cannot program your mains to "small" on a surround sound receiver or processor. You may specify a separate frequency for each of the two positions of the EQ switch (up to 150 Hz). In this way, this box can be used with our