The K&K Banjo Twin is designed to reproduce the true banjo sound with very natural tone quality. The Banjo Twin works well in passive mode, especially if acoustic amps are used. If you're plugging directly into a soundboard (especially an analog one), a preamp can be really handy.
While it doesn't affect the EQ and dynamic feel of your acoustic tone, it can subtly reduce the overall volume of your banjo (which isn't always a bad thing). That's why it's nice that it's not a permanent installation—the Banjo Twin does not require any alteration to your instrument. All the components are installed with special double-sided tape or self-adhesive fasteners. These will not harm the finish of your instrument and residue can be removed with WD-40.
The two transducers are installed on the inside of the banjo head using a removable self-adhesive fastening system, specially designed for the installation on the banjo head. This adhesive is affixed to the two outer edges of the pickups only, which keeps the center portion of the pickup free-floating. This enhances response while reducing the adhesive surface by about 40% to help minimize the effect on your acoustic feel and EQ.
The Banjo Twin system is equipped with a multi-use endpin jack. This jack can be mounted three ways: on the outside of the banjo (see photo), mounted with internal drill-through installation, or installed in a slot of the outer rim. For the external-mount, the jack is attached with K&K's self-adhesive dual-lock system (similar to Velcro but much stronger). It can be indefinitely opened and closed without wear and tear and guarantees super holding power with absolutely no mechanical noise. This way, the jack can be temporarily removed to fit your instrument into a carrying case.