The Boss PQ-3B Bass Parametric Equalizer features a three-band bass parametric equalizer with Low, Middle, and High bands. Each band allows users to set the frequency and level for more precise control over the bass frequencies. The pedal switch and level indicators provide easy operation and monitoring. The dimensions of the PQ-3B are 70(W) x.. This is a pretty rare pedal from boss and fetches some pretty high prices on the used market. Unlike the graphic EQs that carve notches out, this is much more dramatic and flexible. The Q is much wider and will have more overall impact on the sound than the the narrow frequencies on a graphic EQ. It also sounds more natural than graphic.
The Boss PQ-4 Parametric Equalizer brings together a unique arrangement of Boss features like sweepable mid and high frequencies with matching level control, an autonomous low control with present and 18dB cut or boost, and an overall level control with the same 18dB cut or boost. One of the shorter-lived Boss pedals of the '90s because some.. The Boss RPQ-10 2 Band parametric eq with pre-amp - Part of the classic Boss Micro-rack series which graced a huge amount of home studio's back in the 1980's. The unit has 2 bands - LOW (40Hz - 1kHz) & HIGH (600Hz - 15kHz) both of which can be boosted or cut by up to +/-15dB - Each freq also has a 'Q' width control..