Unfortunately, this is no longer available, but perhaps the Related offers may be of interest.
huendeskes 4 Pots, Active/Passive switch (push/pull on volume pot) Balance control with no volume loss at center position Treble in active mode +/- 18 dB @ 18 KHz Bass +/- 14 dB @ 40 Hz Mid +/- 9 dB @ 550 Hz Battery: 9V No difference between active and passive sound at the center position of the pots Includes a chrome mounting plate for Jazz Bass pots