I insure all of the gear I take out when I play professionally. My home owners does not cover musical instruments used commercially and, what they cover at home if stolen would have the same $1000 deductible as the rest of my home owners. I have been using Clarion and there is no deductible (at least that is what my policy is). I provide a schedule of the instruments and gear with serial numbers and I insure them for the value I want, not what someone else says they are worth. They apply a rate per $1000 of stated value. I have never had a claim and I hope I don't but I sure feel better about taking some nice instruments, amps and sound gear out to some low life places now.
If you play out a lot (or a little) and you have nice gear you need to have separate insurance on it. Your homeowners may not be enough and you could end up pretty unhappy. Just my opinion. Maybe someone else has a better experience with homeowners.