... Amazing sound! Very woody and natural sounding, and plenty of output with no preamp! I bought a K&K "Ultra Pure Bass" transducer and preamp rig from our very own Bob Gollihur . Unfortunately, the onboard preamp wouldn't fit in my Tacoma due to the small size of the paisley soundhole and the arrangement of the top braces, so I did a straight passive installation - the transducers come prewired to a quality endpin jack. Luckily, my Tacoma came predrilled for a endpin jack, so that part was easy. My arms are too big to fit through that little soundhole, so I bribed my guitarist to do the inside work. Installation involves supergluing the two transducers to the inside of the bridgeplate. He only glued a transducer to his fingers once, and lost minimal skin. Afterwards, we first plugged into his SWR California Blonde acoustic amp. Wow! Very natural tone, with passive output equivalent to his active Ibanez acoustic guitar. We then plugged into my G-K 400RB / Peavey 1516 practice rig with good results. I'm going to exchange the Ultra Pure preamp for a K&K external preamp, which will allow volume and tone control. I have to say I'm very impressed with the sound of the K&K pickup - minimal piezo quack, and the quality of the sound is equivalent to a well-miked acoustic guitar. The price was right, too!