Great suggestions by the SSO people. I'll add one not mentioned already from my personal experience the Omega Cerberus. I have it in a guitar in drop C and combines the attributes of being tight but without feeling congested and also sounding quite bright without being ear piercing. It's also not over the top high output. Another suggestion is the Seymour Duncan Alternative 8 that Lure mentioned. Tight, bright and articulate but quite musical at the same time.