Markbass Super Booster bass pedal with vintage loudspeaker emulator will lift your tone to just where you need it. The Super Booster is a smart piece of kit with both VLE (Vintage loudspeaker Emulator), and VPF (Variable Pre-shape) filters. The VLE filters out high frequencies for a more mellower vintage sound, whilst the VPF boosts your lows and highs as well as cutting the mids.
This effect is really cool for slap-style and pick playing. The Markbass Super Booster also produces clean boost which drives your solos right out front for attention, it also has true-bypass and buffered-bypass circuitry as well as active DI features.