High Pass Filter subwoofer to use as a speaker

to use as a speaker stand

The reason for the bass optimizer is that TN series tube subwoofers are all overdamped bass reflex systems that need special equalization for flat extended bass

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

and more placement options for optimal sound

High Pass Filter subwoofer to use as a speakerWe 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