Here's where Dean smiled on the piezo transducer lovers. He took the same great high performance Barstow Passive piezo transducer pickup and built into it a discrete Class A Pre-amp. This allows the Barstow Active to beautifully enhance acoustical reproduction while adding more headroom and boosting the bottom end. And incredibly it is hidden in the beautiful 24Kt Gold-Plated Gold River Accelerator Jack. Beautiful jack, beautiful sound. Outstanding Features of the Barstow Active Transducer: • 24Kt Gold-Plated Gold River Accelerator Jack • Discrete Class A preamp—hidden in the jack • Adds more great acoustic reproduction by boosting the Barstow signal. • Gold River Accelerator Jack gives guitar more headroom and boosts bottom end • Stereo End-Pin Jack allows adding a passive magnetic pickup (such as Tahoe or ProMag) for true stereo capabilities when using stereo cable.