AudioCircle
Industry Circles => Spatial Audio => Topic started by: Manolo on 28 Oct 2019, 11:18 am
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Upon reading the M3 crossover mod thread, I checked my M4 TM xover and there are 2 resistors in the network. Measured these without disconnecting them, and the values are 10 ohm and 0.5 ohm. I wonder if these values are the same as in M3 TM and if I needed to disconnect them from the circuit for the measurement. Thanks for looking.
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In my M3 triode masters the are 2 resistors which are a 30 ohm and a 3 ohm. But the M3 and M4 have a different crossover point I believe. There is a third resistor in the M3TM's that is part of a Zobel Network as well which may not be in the non TM models.
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In the M3TM The first resistor is part of a parallel notch filter that appears to create a 10db dip at 2,6kz the second one appears to reduce the tweeter output to bring it into balance with the woofers