Ischell, the french maker of contact microphones, offers a special promotion for readers of the DoubleBassGuide.com: save 8% on any order at the Ischell webshop site, using the voucher code “JONASLOHSE”.
The Ischell microphones mount to the double bass top by means of putty. It’s an active system that runs on phantom power (provided by a preamp or XLR).