Optimum driver impedance for the Crack amp

Josh P. · 1072

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Offline Josh P.

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on: February 24, 2018, 09:44:44 AM
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.
« Last Edit: February 24, 2018, 10:03:14 AM by Josh P. »


Offline Paul Birkeland

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Reply #1 on: February 24, 2018, 11:23:47 AM
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.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline Josh P.

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Reply #2 on: February 24, 2018, 11:33:29 AM
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.
« Last Edit: February 24, 2018, 02:06:34 PM by Josh P. »


Offline Paul Birkeland

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Reply #3 on: February 24, 2018, 05:45:11 PM
The higher the impedance the better I suppose!

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

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