You first have to know what a good system sounds like. You do that by auditioning the very top performing loudspeakers and equipment. Find the sound you like, then move down the product line until you can afford the product and still gives you a taste of the best systems.
How do you know when a stereo sounds good?
When do you know your system is pleasing to listen to? How do you conclusively prove to yourself that your system sounds good to you? How do you determine that you enjoy listening to music through your stereo? Do you have a suite of measurements that removes all shadow of a doubt that you are getting good sound, sound that you enjoy? Please share.