Why do so many 5-string basses have a flappy low B? | eBass
The Importance Of The Low B On A Bass Guitar – FuelRocks
D'Addario NS Electric Traditional Bass Single Low B String, 3/4 Scale, Medium Tension | Reverb
Warwick Black Label 4-String Low B Nickel Bass Strings - Walmart.com
D'Addario NS Electric Bass Trad Low B
Clifton Guitars - Presenting the 5-String Clifton P-Bass, get the fat classic tone of a pbass and the expanded tonal reach by adding an extra low B string as the thickest string