LA4 Mods: Hot Rodding the LA-4 Limiter | Tape Op Magazine | Longform candid interviews with music producers and audio engineers covering mixing, mastering, recording and music production.
Vintage Original UREI Model LA4 Compressor Limiter Instruction Manual schematics | eBay
At Auction: Dual UREI LA-4 Compressor/ Limiters, Rack Mount