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In Reply to: RE: Digital Crossover for 1.7's - Needed? posted by Radiohead on June 27, 2020 at 17:50:14
Thanks for the comments - my mistake. The crossover would not need to be digital. I would agree that converting to digital and back to analog would not be helpful, this is why I was not impressed with the Mini DSP for this specific application.
I was not aware that the Loki was a crossover and will research it. I thought it was limited to EQ. The other one I was considering was a used DBX 234.
What I am most interested in is the discussion of whether this is actually necessary and useful. Are uses rolling off their low end signal to the Maggies?
Follow Ups:
The Loki is an inexpensive and very clean EQ. If you put in the path of your Maggies only (between the preamp out that goes to the Maggies amp and the Maggies's amp input) you can turn down the low bass control and effectively roll off the bass to the Maggies. The sub has its own crossover controls for its low pass.
In my system I got better bass integration, the Maggies' amp does not have to reproduce as much low bass and my LRS seem happier without the low bass content.
Gsquared
G Squared,
What is the frequency range covered by the first band on the loki? I know it has 4 bands and you use the first one of 20hz. But up to what frecuency does it work, 50? 100?
Thanks.
I use only the lowest band. I am not sure about the bandwidth.
Gsquared
There's two schools of thought on this. Much depends upon the subwoofer(s) you're using and how the low-pass filter scheme works and how low the cutoff frequency is.
1.7's are a speaker you could let run full range and then match the subwoofer low-pass to the natural 1.7 roll-off. If your subwoofer can do that. That would be a second-order roll-off.
If your subwoofer is limited to fourth-order roll-off, then I think it would be preferable to roll-off the 1.7's to match that.
DSP crossovers allow to implement just about anything for this integration. Analog crossovers are much more limited.
Dave.
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