With high impedance pickups, the fundamental of a low E is poorly reproduced, depending on the pickup. The more windings, the more trouble the pickup has reproducing the fundamental of the low E. Not a problem as many cabinets and amps have problems doing that as well. Our ears and brains hear the 2nd and 4th harmonics and produce the fundamental in our heads. A feature of the mighty SVT, touted in advertising copy when the amp first came out that the SVT would not produce the fundamental of a low E and how that was a great thing.
With 5 string, this is even more the case. Perhaps the popularity of active pickups, which use far fewer windings, is partly because of their ability to actually reproduce the fundamentals of the lowest notes...piezos too.
As far as the B string...I'd rather give up the G string, than my low B. I certainly use it more. But since I don't have to give up either, I'm a happy boy.
Are active pickups even very popular?
None of my fives and only one of my sixes (an MTD 635) have active pickups. I don't find pickups to be the main issue with low B reproduction. It's the player.
