In peninsula, there's only two shops you should go to for set-ups and that would be Sound Alchemy or TYMusic. Other than that, you can go to other people like Beez(Roxy Square Level 1) and Mike (Standard Value @ Woodlands). I don't have Mike's contact.
If you would like Beez contact number, PM me. From what I heard, he does set-up in front of you "live" and chats with you too. Friendly guy.