Thanks in advance for clearing up some confusion for me. I am in the market to buying a new DMM to replace a 15 year old Radio Shack model.

I use the Resistance functions and check for AC Voltage and DC voltage. I have learned to check the DCR of a speaker too.

I see so many different features in addition to standard like Diode checking; capacitance, inductance; frequency etc.

I have 0 experience or knowledge of these features and if they would be helpful or beneficial to an amateur speaker builder. I get the feeling that hose feature are for things like HVAC work etc.

So my question is:
Do I need any of the other features, and if so which ones??