Blktiger0

First off, I think your advice is good, but a little cloudy, so let me clear it up:

You cabinet certainly dictates a good portion of your sound, but the speakers are the integral part here. I've never really heard of speakers that are "better for cleans", but speakers certainly have headroom, just like an amp. For example, the classic Celestion Greenback is a 25w speaker that was often used with cranked 100w heads in a 4x12 (so that cabinet would be rated at 100w also) meaning that the speaker would start breaking up, which gives a certain character to the sound. Now, does that mean you need 300w speakers on a 30w amp to get a good clean tone? Definitely not. Many people use a 60w Celestion V30 for a 60w amp and maintain fine cleans, but they also aren't cranking the amp like would have been the case with the Greenback.

Now, speakers certainly have a specific frequency response to them, which is kinda like a set EQ for the speaker. Vintage 30's have a big upper-mid spike, whereas T75's are a bit more "scooped" in the mids. Now, that means that you might like your cleans more with certain speakers, due to their response, but it's not going to give you a more clean tone.

Also, he's correct in saying that closed back cabinets give more bass response. They also generally have a tighter bass end than open back cabs.

__________________
My Rig:
Moser Bastard V
- Pups: Bridge
Epi Les Paul Standard
- Pups: Bridge Neck
Egnater Vengeance
- JCA24S w/WGS Retro 30s
- ZW-45 Crybaby
- MXR 10-Band EQ
- ISP Decimator
(^Those are links^ )