midrange depends on the mix of magnet, type of wire and windings. A higher output pickup carries more mids. A classic low wind pickup is rather scooped, especially in the neck position, especially, though not exclusively, on telecasters. Most tele players have had bass issues w the classic neck pickup when playing in a live setting. No cutting mid-highs around 1 kHz. Turning your (Fender) brown-/blackface amp's volume up and you make it worse. You have to chose your amp's settings to either your telecaster's neck or bridge pickup. As the tele bridge pickup is more even in frequency response it's clearly the best to set up yr amp with that. Then the classic neck pickup will sound very bassy w not enough highs. The other way around will make the bridge pickup sound thin. Answer: an EQ pedal. Or a different neck pickup..