The BTS System HZ is a complete control system for passive pickups or
EMG HZ bass pickups. It includes an Active Balance Control which
features buffered inputs for a higher impedance pickups. The additional
Controls are a 2-band equalizer for bass and treble that features
single-pole filters for broadband equalization. Often the broader
single-pole filters are preferred for musical instruments because they
are less selective, easier on the ear, and sound more musical. One of
the features of the BTS Control is a 2-position dip-switch that controls
the slope of the high frequency response. By choosing one of the four
combinations the high frequency response can be tailored to your liking.
Bass and Treble controls are mounted on separate shafts and knobs. Also
included are a Master Volume control, output jack, battery buss and
clip.