What would be a good JBL or Altec horn loaded midbass cabinet to use with a JBL 4520 cabinet with the crossover set at 90Hz?
Thinking about the Altec 816 unless the JBL 4560A or 4550A would be better.
Will be used for a skating rink.
The 90Hz crossover point was determined so that the midbass horns reproduce the kick drum which the 4520 cabinets don't do very well.