Optimum driver impedance for the Crack amp

[Josh P.]

I know the Crack amp does well with 600 ohm headphones and higher, but what would be the optimum impedance for the crack to be at it's best? I am building a speaker array just for fun to see what it can do (I know, 3/4 of a watt...). I am planning on 1200 ohms per speaker array box, series on drivers per box, boxes wired in parallel.

 

[Paul Birkeland]

1200 Ohms is more than enough for what you're planning to do.  You could get away with 300, but you would have to adjust your enclosure tuning a bit.

 

[Josh P.]

Thanks Paul, should I go with 1200 ohms per speaker then maybe for 600 ohm total to the amp with speaker boxes in parallel? They are near field boxes, 2 1/2" arrays @64 ohms per driver.

 

[Paul Birkeland]

The higher the impedance the better I suppose!