EVM 15B pro line speaker. Had this reconed around 1990 by an EV authorized shop. used foe 2yrs with a 50 watt guitar amp then stored.The reconer asked if I wanted to use the L type ribbed cone which would have more extended high BUT the same bass as the bass cone. SO this can be used for bass or guitar or Keyboards. If you want a clean sounding  15" guitar speaker than it dont get any better than this. 15" 400 watts 8 ohms