I play an acoustic bass that I can plug in to an amp. So I bought this real cheap amp for £35.

I should have just thrown my money away or given it to a travelling circus or something because the amp is the most awful thing ever on the entire planet!
It just picks up real nasty sounds from the fret board and totally destroys all the nice sounds that I get when I play acoustically. If I play on a nice big bass amp, we have at work, it sounds ok.
I don’t know what amp you have but it could be worth checking out. I’m looking to buy a new big lovely sounding bass amp and paying real cash for it because it’s not the kind of thing you can save on.
Good luck