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In Reply to: RE: Am I damaging my Mini Maggies? posted by gracky on September 06, 2016 at 01:12:04
@gracky (A)
My jury-rigged system has an awful lot of variables -- frequency but also, volume. From the preamp the identical volume (xxV RMS) is sent to one amp (75W) and to the Rane MX 22 active crossover.
That amp drives the bass panel. I presume that the passive crossover in that panel cuts the higher frequencies off.
I've set the Rane active crossover to accept whatever volume the preamp is generating. I only use the high level side of the crossover. To balance the bass panel and the satellites I use the crossover's high frequency volume control -- cut way back. I'm at 2 on a scale of 10 (Nigel Tufnel would surely be dissatisfied). That reduced volume is sent to a 50W amp which drives the satellites.
I've set the Rane crossover's LOW/HIGH FREQUENCY at 200Hz. I like it there but I'm not sure the exact setting is critical for the reason that I'm not using the active crossover to send the bass signal on. I have no idea at what frequency the mid-level panels in the satellites begin to contribute. It may be a good deal higher than 200Hz.
As to slope. The published slope of the MX 22 is "24 dB per Octave." But for my setup the crossover's roll-off is probably not just irrelevant but at 200Hz probably unheard.
Follow Ups:
You are probably going to be fine with the high pass at anything over 100 hz since the slope is very steep. Feel free to experiment with other settings.
How does the sound through the Rane come off in the mids and treble vs without or via the crossover in the DWM?
@ Satie (A)
Since I can't A/B the two setups (Magnepan/Ellen), it's hard to answer the question.
I can say that I don't think the Rane adds any color, and I am confident it isn't distorting the sound. I don't think satellites connected via the bass panel were any smoother than via the Rane, and to my ear hi-hats' shimmer is just as clean, smooth, and airy.
My Rane sounded very transparent and just a tad thin. But better resolving than stock speaker level parts. You just need to take the HP as low as it can go to keep the phasey part of the XO transition out of the critical portion of the spectrum. Hopefully below 150hz
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