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Permalink Reply by Paul Craig on January 19, 2019 at 7:54am

The more expensive preamp models often provide a magnetic pickup hook up. You may need to go to their website and look through their models or contact them to find out.

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Permalink Reply by B W on January 19, 2019 at 9:06am

The Cherub preamp that I have has two solder terminals off the piezo jack socket but wasn't sure if it was for connecting a piezo (that doesn't have a jack fitted) or a magnetic pickup - I didn't want to cook the preamp!

I emailed Cherub USA but never got a reply.

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Permalink Reply by Paul Craig on January 20, 2019 at 9:30am

All the info I found on that preamp was for piezo only. Heres a diagram for wiring the piezo to the preamp and magnetic pickup separate to a 3-way switch, but you could substitute the switch with a blender knob.

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Permalink Reply by David L. on January 19, 2019 at 10:41am

Been a while since I built a CBG, but I used to always mix piezo and magnetic (magnetic/both/piezo options using a 3 way switch for example) and send the output through a cheap onboard preamp.  Always worked for me.

Did a poor sound quality video a while back - turn your volume up and if your device program shows a volume on the video screen turn that up too ;0) 

https://cigarboxnation.com/video/comparing-cbg-pickups

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Permalink Reply by Taffy Evans on January 19, 2019 at 2:21pm

Hi, low impedance magnetic pickups use a preamp, the high gain high impedance pickup do not normally need a preamp due to their high output. 

In the low impedance pick ups I have installed one does not have to earth the circuit to the strings due to their low noise caperbility, a good safety feature. I used EMG pickups where the preamp is built into the pickup itself. They used normal pots but of different ratings and of course a battery.

Here's a guitar I built using them.

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