Like the Fishman Matrix, the Highlander iP-1 is another “all in one” active system, with the preamp built into the elongated output jack and no major modification is required to your guitar, simply a very small hole under the saddle for the transducer wire and feed the preamp through the endpin hole. This is a rare model that also includes a factory volume control which can be installed in several fashions, including drilling a hole in the top or side, or simply tape mounting it. The iP-1 is an excellent design and there are loads of accolades on their site. The iP-1 “hears” the tonal properties of the wood and design, not just the dry sound of pressure against the thin transducer under the saddle. Check out Highlander’s site here and the iP-1 here. This one’s just $109, or $135/installed on any guitar in stock.