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<blockquote data-quote="Guy Graham" data-source="post: 91660" data-attributes="member: 1944">Re: Aux feed subs?When using aux-fed subs, whether as an addition to a full-range system or as the only sub-bass reinforcement in that passband, do you have to ensure all the processing used for crossover across the whole system is the same - eg proprietary L&#039;Acoustics LA series, DBX, XTA or LG PLM Lake and so forth.Or can a different brand of processor be used for the subs, as long as matching appropriate types of filter (eg LR 24dB at X freq slope) are used in line with the existing processing being used for the main array such subs might be added to?My thoughts are instinctively that the same type of processor should be used across the whole system, since measurements have shown that the same type crossover slope from different manufacturers are not always measured identically.&nbsp; My query specifically is concerned with how folks such as Evan K. deal with this issue, when bringing extra subs to be fed from an aux to add to an existing system in a hypothetical venue ... in such circumstances is ita) essential to match your aux subs&#039; processing to the rig they are being added tob) &#039;ideal&#039; but not essentialc) can different processors be mixed without issue, as long as crossover slopes and types are matched?</blockquote>

[QUOTE="Guy Graham, post: 91660, member: 1944"] Re: Aux feed subs? When using aux-fed subs, whether as an addition to a full-range system or as the only sub-bass reinforcement in that passband, do you have to ensure all the processing used for crossover across the whole system is the same - eg proprietary L'Acoustics LA series, DBX, XTA or LG PLM Lake and so forth. Or can a different brand of processor be used for the subs, as long as matching appropriate types of filter (eg LR 24dB at X freq slope) are used in line with the existing processing being used for the main array such subs might be added to? My thoughts are instinctively that the same type of processor should be used across the whole system, since measurements have shown that the same type crossover slope from different manufacturers are not always measured identically. My query specifically is concerned with how folks such as Evan K. deal with this issue, when bringing extra subs to be fed from an aux to add to an existing system in a hypothetical venue ... in such circumstances is it a) essential to match your aux subs' processing to the rig they are being added to b) 'ideal' but not essential c) can different processors be mixed without issue, as long as crossover slopes and types are matched? [/QUOTE]

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