Tube XO Schematics*
30-april-2012
Heath XO-1
Marantz
Audio Research
TubeCAD
aricle on
tube XOs
Larson & Cretien
(bessel 2
nd
order) -- 7 kHz
Larson & Cretien
(bessel 4
th
order) -- 5 kHz
1
st
order Butterworth
3
rd
order Butterworth
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