Seven-string guitars are hard to amplify. Most players tune the seventh string to a low “B” (or even “A”), and it's a real trick to get a big, solid tone from the other strings without the seventh turning to mud. The Blaze™ Middle single-coil is exceptionally tight, and is designed to be a match for the Blaze™ humbuckers in split mode. Both lows and highs are bright and clean.
14K ohms may seem like a lot of resistance for a single-coil, but the Blaze™ is not at all muddy — it's bright and even-sounding through the entire 7-string frequency range.