Bass Optimizer Speakers The unit comes with a

The unit comes with a free 91 Hz module

the VTF-TN1 stands as the pinnacle of performance in the HSU lineup

The most common set is 60 Hz and 80 Hz

Most people take the volume knob controlled line-level output from their Preamp and run that into the High End Crossover

Easier to handle – this two-piece system is the only super powerful subwoofer on the market that is simple to install and move

Bass Optimizer Speakers The unit comes with aSpecial Note: The Bass Optimizer is only meant for our older passive cylindrical subwoofers. This is no longer necessary on our current powered subwoofers. 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. They also need infrasonic filtering to keep bass frequencies they cannot handle out of them. To date, you need to get our amplifiers or