Shadow SH-SB1 Double Bass Pickup

I use these on all my acoustic gypsy guitars - you can slide the button under the bridge between the feet, and once you have the correct pressure, the resulting signal is excellent. For the money, this is a superb pickup for gypsy jazz guitars. I fitted one to my vintage EKO fretless bass too, and again, the sound is excellent.
The only slight negative is that Shadow changed the design for the attachment point for the 1/4 inch socket. It's now flimsy velcro, which has a habit of coming off and pulling the cable - not good at all. The remedy is to build a little plastic box and glue the socket into it. Then you use strong double sided tape to stick the box to the guitar. Come on Shadow, bring back the old plastic mount!!!
It's still an excellent pick up and totally worth 5 stars

Great item for the price. I’m new to double bass playing so I didn’t want to spend loads of money. Can’t beat the price of this item for what it does. I’ve played two gigs with it so far. Without a preamp it sound very harsh and treblely. This is because of the impedance mismatch between the peizo and the input on the amp or desk. Using a preamp it sounds good. It picks up the frequencies of my bass evenly. Sometimes I can hear a flanger type sound coming from it but this may be because of the way I mounted it.
I fitted the pickup into the side of the bridge below the e string. Initially it would not fit but used a shim of wood to push it into the side of the bridge. I’ve had no feedback problems, although I haven’t played at high volumes with it.