johnnycamp5 Messages: 354 Registered: June 2015 Location: NJ
Grand Master
Anyone familiar with the Harrison Labs FMOD inline rca crossovers/filters?
Ive got an extra amp and attenuator that Id like to use for a pair of flanking subs, so Im considering trying the inline passives instead of an electronic crossover.
johnnycamp5 Messages: 354 Registered: June 2015 Location: NJ
Grand Master
Thanks Wayne.
Is your experience with the rca filters using them for a flanking subs configuration to blend with your 3pi's or 4pi's?
Ill be trying them with your 3 pi subs (flanking my 4pi's), and was wondering what crossover frequency you used (100z, 120hz, 150hz) if you did indeed use them for subs to flank your large 3pi or 4pi designs.
Or is the roll off frequency I choose mostly room dependent (how the speakers measure in my room)?
Wayne Parham Messages: 18793 Registered: January 2001
Illuminati (33rd Degree)
I used them with both models. I have both in my home, so I live with each system daily.
I've run all three of those crossover frequencies. While we want blending to ~150Hz, I find the 150Hz low-pass to be too high. The slope is low, so there's still a lot of energy an octave above the knee frequency. For that reason, I like the 100Hz filter best.
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