Verified answer

What defines a good speaker is how you like how it sounds.

Go to your local shop and grab a listen. Your ears will thank you.

As far as what defines a good brand, that's all up to what you think sounds good to you. Everyone has different tastes in what sounds good to them.

Some of my personal favorite brands are:

Pioneer, especially the kevlar cones but it's recommended that you use an amp with these. go with some g-series if you're just wanting factory replacements.

JL Audio, the evolution-c5, again amp is recommended.

Memphis is also a brand you could look in to.

Infinity seem to do ok.

Some that i don't personally car for:

Audiobahn

Sony

JBL

Dual

Jenson

Again, these are just personal preferences and it all depends on what sounds good to you. Hope this gives you an idea of where to start.

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