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In Reply to: RE: Wrong, again.... posted by Dave_K on December 02, 2014 at 07:36:41
- Most modern, high-quality, two-way mini monitors will produce fairly flat bass response down to at least 80 hz, the maximum crossover point recommended when using a subwoofer...- If crossing over from the mains to the subwoofer at a point higher than 80 hz, where bass starts to become unidirectional, it is better to use two subwoofers (or one per speaker and each sub in close proximity to the main speaker) in order to preserve stereo separation and imaging. Otherwise (for example), you'll be listening to a bass or baritone vocalist recording and all of a sudden, the vocal imaging will switch from the 3' high level of the mains speakers down to the level of the floor where the subwoofer is located, as the singer traverses the lower depths of his vocal range.
Edits: 12/02/14 12/02/14Follow Ups:
Genungo, you're basically on the right track, but your specifics are wrong.
The scientific literature shows that at about 80 Hz, we are able to discern the source direction of a sound. Given this, an 80 Hz crossover to a single sub is inappropriate for a stereo high fidelity system. 50 Hz is about the max for the crossover point.
However, as has been noted here by Duke and a couple of others, an even better solution is to have multiple subs in multiple locations. As an added bonus, you could put two of them toward the left side and two toward the right side, thus maintaining stereo separation and reducing the room issues while still being able to cross over at higher than 80 Hz.
:)
I understand that a crossover setting below 80 hz is often helpful because the rolloff rates of both subwoofers and mains speakers must meet and combine, effectively, at 80 hz or below. So, if the mains speaker start rolling of at 80 hz, we might need to set the sub crossover as low as 40 or 50 hz.My mains standmount speakers start rolling off about 80hz, and I've always found that using the 40 hz crossover setting on my subwoofers makes for the best sub/mains bass integration. I like to use the lowest possible subwoofer crossover setting combined with the highest possible subwoofer volume setting so that I get maximum grunt from way down below with less risk of excessive sub/mains overlap.
Edits: 12/02/14
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