Quote Originally Posted by LICORNE View Post
From the little documentation found on the 1653. This unit is a professional single channel
EQ. The low pass and high pass can be put in the off position. The { high pass} is adjustable form off ,20 ,40 ,80, 160 hz and { low pass } off, 5, 8 ,12.5, and 20 khz .

You need 2 1653 for 2 channels operating system.
Ok thanks, I have (2) 1653 and (2) channels of (2) way speakers with (2) 500 Hz crossovers. I suppose the filters on the equalizers could be used if I added more amps and a sub (below) and tweeter (above) the frequency settings of the filters.

Or as someone said to prevent rumbling (lows) and ringing (highs) or just to protect the capabilities of the drivers.

I see now! Thanks

Still wish I could find documents on these.