I bought this to put on a Stagg EUB. I used to record my Stagg with a microphone as it doesn't sound like a double bass when using the inbuilt electronics. With the David Gage it now sounds great. It sounds good live through my Mark Bass acoustic amp too.
I recorded it with the pickup for the first time here: https://soundcloud.com/markbuck/reverbarashun
My thanks to the various home pages and Bass Forum for recommending this Double Bass Pick Up. Easy to install and yes, the many comments mentioned regarding a small rubber piece between the bridge and the actual pick-up is true. The sound gets more smooth. Playing on a fully carved Bass through a GK MB150 the sound is just like my bass only louder. So the WOW in the headline is my initial response first time i heard it. Feedback dosen?t seem to be a problem.