SMB-5DHotter pickup. Recommended for classic rock, heavy rock, funk, punk, R&B, and metal. This hum-canceling pickup offers a balanced, highly musical tone contour with a richly articulated bottom, lots of midrange, and biting treble. It's got a nice, mild "bark" without being overly brash, and it's not at all harsh in the mid-range. The low end is full and strong without being mushy or foggy.complete setup Generally used together with STC-3M3 and -3M4 Tone Circuits for optimal tonal control.basses Replacement for 5-string Music Man StingRay basses up to 1992. For post-'92 5-string basses, see three-coil version.STC-3M4On board Tone Circuits for adding tremendous tonal versatility. Enables the player to add to subtract EQ at center frequencies voiced specifically for electric bass. They feature low noise, low distortion and high headroom. Useful for all musical styles and genres. Three bands of active EQ, plus the proprietary Slap Switch. The lows are deep, clear, and tight. The mids range from ultra-smooth to punchy and all points in between. The treble control can produce a very wide, very usable response that is brilliant, yet smooth without any brittleness. Pulling up on the volume knob engages the proprietary Slap Switch, a special EQ contour made just for slap-style playing. See website for frequency response charts.complete setup Use together with Basslines' replacement pickup for Music Man bass. Includes all necessary mounting hardware: high-quality potentiometers on pre-wired harness; battery clip; stereo jack; and black anodized, knurled, dome-style knobs.basses For Music Man StingRay basses and other basses with a single passive pickup. Will not work with 3-coil pickup.