Boss PQ-3B Bass Parametric Equalizer
The PQ-3B is a three-band bass parametric equalizer that features Low, Middle and High bands. Each band allows you to set the...
Boss GE-7B Bass Equalizer
The GE-7B is a 7 band Equalizer for Bass guitar. The design is very similar to the GE-7 but the frequency bands...
BE-5 Guitar Multiple Effects
Boss Guitar Effects Guide Book Vol 7 (1991):
Integrates five high-quality effects indispensable for guitarists
BOSS SP-1 Spectrum
SP-1 Spectrum
the SP-1 is a parametric equalizer with one frequency band only. The spectrum knob sets the...
BOSS PQ-4 Parametric Equalizer
THE PQ-4 is quite rare. It was never a big seller and as Boss doesn't make any parametric equalizers today (2004) they...
