The Best Way to Use Teenage Engineering Manuals If you own a Teenage Engineering device, you've probably tried to use the official PDF manual. The EP-133 manual is 144 pages. The OP-1 manual is 100+ pages. The OP-XY manual is even longer. These are dense technical documents that assume you'll read them cover-to-cover, but in reality you just need quick answers to specific questions. There's a…