Re: Bass on a guitar amp?
Not the amp, the speaker(s). Bass speakers are generally designed to handle more power and lower frequencies. Remember, at standard pitch, the E on a bass is around 40 hz.
Generally speaking, the only way you'll mess up the amp running bass through it is if you have an impedance mismatch (like running 4 ohms on something that wants to see 16 or going under 2 ohms for most any amp) and running the amp too hard. Bass freqs take a lot of power.