Here’s a nice utility box for home recording or even live application (if you’ve run into a sound guy who hates guitar amps 😠). It’s a direct box but also a cab sim (4×12). It won’t run off phantom power, so just power it with a 9v wall wart or a battery. Also, connected to the Speaker In pad should be another jack for “speaker through” (so you don’t blow up your amp). Here’s the schematic and original user manual for reference.
Update Nov. 15:
I removed the extra components for ground lift application as most reported it not working and they had better success with placing an on/off switch between XLR pin 1 and ground. YMMV
I removed the extra components for ground lift application as most reported it not working and they had better success with placing an on/off switch between XLR pin 1 and ground. YMMV