Originally Posted by satchboogeyman
I have been thinking alot lately about 7 strings. I have played one. The korn model(dont ask). Whats the difference between the 1527,7620 and 7420. I really want a Universe but am not willing to shell out the money for something that I might not stick with.
Good decision - I love my PWH, but I'd never have spent that kind of cash on a seven if I didn't already know I actually prefer the feel of a seven string neck.
the 7420 and 7620 are both out of production, but widely available used. The 7420 has Ibanez pickups and a Lo-TRS7 trem (which, while no Edge, seems to be a bit more well made and hold tune better than the six string lo-TRS, for some reason. It makes no sense, but I've heard it from too many people who I trust to discount). The 7620, meanwhile, has Dimarzio New7's (which actually aren't bad pickups - I'm pretty sure they're the same as the custom-wound Dimarzios for the CST, and are voiced the same as the six string Ibanez/Dimarzio customs in production now. A lot of people really like the neck, but to be fair the bridge is happier in mahogany than basswood) and a Lo-Pro Edge 7 trem.
The 1527 is currently in production - it's basically a 7620 without the Dimarzios and with the Edge Pro 7.
The 7620 is arguably the best buy, as they're rather affordable secondhand, and it's a totally pro-quality guitar (original list was $1300). However, you can't get them new and it's becoming harder to find them for sale (most people with them aren't selling, and they've been the basis of a lot of seven string project guitars), so the still relatively affordable 1527 might be easier to grab. However, by that point ($800 new), you're almost to what you can grab a player UV777BK or 7BK for if you get lucky.
If you just want to see if you like sevens or not, maybe a 7321? They're cheap (I've seen them used for less than $300) and I found the neck surprisingly comfortable. The pickups aren't exactly inspiring, but that's an easy fix and again if you find you're getting hooked on the added range and low end crunch of a seven, you can just look to upgrade when the time comes. It doesn't have a trem, but...