Artec PP-407 Under Bridge Saddle Piezo Pickup for Mandolin. This pickup features 4 separate string sensors and is 2.0mm thick. The Artec PP pickup series has a variety of design for any string instruments. It's solid construction provides wide range of frequency response from the high frequency to low bass tone. And also It provides the high output.

Specifications:

• Length: 33mm
• Width: 2.6mm
• Thickness: 2.0mm
• Plug: 2.5mm Diameter

Artec Piezo Pickups are made by Piezoelectric material - Lead Zirconate Titanate (PZT) - piezo ceramic that has shown exceptional mechanical and electrical properties with very stable energy conversion efficiency, good temperature stability and uniform sensitivity. They are constructed by individual piezo ceramic sensors for each string to improve string to string balance. Ceramics are coated with the finest material, which supports piezo electric effects and excellent frequency characteristics for deliver natural acoustic sounds.

Each piezo ceramic sensors sit on a Contact board with the suitable string pitch. The contact board is used as a "+" connector because of it's high electric transmitting efficiency foil is used for good shield against electronic interference and easy to be soldered. Ceramic, Contact board and Foil can be firmly fixed together, as the foil is highly extensible and easy for glue with high conductivity. Case made from Bronze and Nickel can greatly transmit electricity and is highly extensible. It works to make good shield and ground connection. The case offers the most stable installation in a saddle slot.

Teflon shielded cable enhances the capability to endure high and low temperature and works greatly for ground connection. Special shielding alloy protects electric interference effectively. It is also good insulator offers excellent conductivity and high frequency characteristics.