Sub and top mismatch ?

T

Tommy Stone

Freshman
May 16, 2011
25
0
0
Here's what I got pair of EV SXA 360s with Live X ELX118Ps which the subs are weak and need more muscle under the 360s.
The matching SBA 760s have been discontinued and cost more then the JBL 18XLF I've been spying on and concern about about the long term product support on a discontinued product. Plus the XLF weighs less. My concern is the mismatching and the 360 manual state to HPF the 360s at 100HZ and the XLF has fixed 90HZ and would I lose SPL on the 360s ? and would the combo even work?

Since 2 different brands which has different DSP processing that I'm gusssing they have ?
I have a rock cover band that covers old and new rock. Room sizes vary from 100-200 ppl and occassion outdoor on the patio deck but don't need concert level.
I just need more muscle under the 360s and don't have room to add more Live X.

Which my plan was to start with the XLF subs for the time being to go with the 360s then save up more nickles and dimes then buy matching tops and move the 360s to monitor duty to replace the passive YX12s
 
Re: Sub and top mismatch ?

Tommy Stone said:
Here's what I got pair of EV SXA 360s with Live X ELX118Ps which the subs are weak and need more muscle under the 360s.
The matching SBA 760s have been discontinued and cost more then the JBL 18XLF I've been spying on and concern about about the long term product support on a discontinued product. Plus the XLF weighs less. My concern is the mismatching and the 360 manual state to HPF the 360s at 100HZ and the XLF has fixed 90HZ and would I lose SPL on the 360s ? and would the combo even work?

Since 2 different brands which has different DSP processing that I'm gusssing they have ?
I have a rock cover band that covers old and new rock. Room sizes vary from 100-200 ppl and occassion outdoor on the patio deck but don't need concert level.
I just need more muscle under the 360s and don't have room to add more Live X.

Which my plan was to start with the XLF subs for the time being to go with the 360s then save up more nickles and dimes then buy matching tops and move the 360s to monitor duty to replace the passive YX12s
Click to expand...

You may not be "loosing" the freq you think you are. Yes there would be a"hole" int he response-but that "assumes" that both have a flat response around crossover AND you run the subs at the same level as the tops.

In most cases the subs are run hotter, which means the ACOUSTICAL crossover (which is all you are concerned with anyway) will be higher than you think it is.

In most cases the electrical and acoustical crossovers are not the same.

So the "hole" may be filled in.

OF course the only real way is to hook them up and measure and "see what you got".
 
Re: Sub and top mismatch ?

Thanks Ivan but I'm in small town and no place round to try them out so basically I'm buying sight unseen or should I say unheard and rather not have to mess with return shipping.
I got the EVs at bargain deal and I really happy with their performance because plenty loud and crstal clear and yet to clip them unlike my subs runs out of gas to keep up with them.
 
Re: Sub and top mismatch ?

My 2 cents, I bought one of those JBL PRXS-XLF subs and liked it so much I bought two more. Have paired with PRX615s, RCF Art 325As, Peavey SP-2Gs, pretty much whatever I'm carrying as tops at the time. The sub has never been the weakest link.

(Also, if you are worried about a frequency hole, why not run the tops full range?!)
 
Re: Sub and top mismatch ?

There is no crossover in the EV SXA360's. There is a crossover in the subs, which high passes to the top speaker. The JBL sub has a fixed crossover point of 90hz. This means that compared to your existing setup, the tops now have to also produce the sound in the 90-100hz range that they weren't responsible for previously. The speakers are rated down to 60hz, so there will be no 'hole' in the sound to worry about. The only concern is the added work load to the tops. But in reality, there may not be much more load on the tops. The JBL uses a pretty steep 48dB/octave slope, so the tops aren't going to be doing much work below 90hz. The slope of the crossover for the EV's isn't specified, but if it wasn't a steep slope, the tops were likely producing some sound in that range and the net difference of work load would be little to none.
 
Re: Sub and top mismatch ?

Thanks everybody really appreciate the responses and just wanted make sure the subs would work since read it's not wise to use a mismatched system.
 
Re: Sub and top mismatch ?

Tommy Stone said:
Thanks everybody really appreciate the responses and just wanted make sure the subs would work since read it's not wise to use a mismatched system.
Click to expand...
I am still waiting for somebody to show proof that a particular sub is "designed" (beyond physical size) to "match" a particular full range cabinet.

I am open to any manufacturer or system.

Once you start using filters/delay etc-then almost any sub can be adjusted to "match" the full range cabinet- just using different settings.

Obviously output level is a big issue-but even that "falls apart". Lets say a "system" is 1 top and 1 sub. So is that combination good for ALL types of uses?

Does speech need the sub? maybe not. Lighter material may be fine with 1 sub per top, but heavy dance material may need 4-6 subs per top. So is it still "matched"?

Just yet another "myth" that floats around--------------------
 
Re: Sub and top mismatch ?

X subs to x tops is kinda akward.

Today I have 12 subs + 46 top boxes. Plenty of subs for 5000 people. Number of top boxes dictated by coverage requirements, number of subs by output. No need to bring 46 subs, don't need the output and haven't got space for it :)
 
Re: Sub and top mismatch ?

Ivan Beaver said:
I am still waiting for somebody to show proof that a particular sub is "designed" (beyond physical size) to "match" a particular full range cabinet.
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It's like saying you can't mix Kmart chips with Target tomatoes and Safeway steak :razz:
 
Per Søvik said:
It's like saying you can't mix Kmart chips with Target tomatoes and Safeway steak :razz:
Click to expand...

The whole "matched subs/tops" exists for 3 reasons in favor-
1- basic users who don't have the capabilities to design/integrate a coherent system from dissimilar pieces
2 - advanced users looking for consistency and fast setup
3 - manufacturers wanting to sell larger, complete systems.

Whether it's good or bad depends on which camp you fall into. The dissenting camp is advanced users looking for the best use of available resources; or the best possible total outcome that is higher than any one prepackaged system.
 
Re: Sub and top mismatch ?

Ivan Beaver said:
But don't you realize it would be "better" if you had Kmart everything-after all-they are "designed" that way-----------------------------
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Nah, I realize it would be quicker in terms of shopping, but I really like the brand of chips they sell at Kmart, the tomatoes at Target are tastier and the Safeway beef is more value for money ;)~;-)~:wink:
 
Re: Sub and top mismatch ?

Per Søvik said:
Nah, I realize it would be quicker in terms of shopping, but I really like the brand of chips they sell at Kmart, the tomatoes at Target are tastier and the Safeway beef is more value for money ;)~;-)~:wink:
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God forbid you're like me and go to a local butcher for your meat. No one ever respects local any more...
 
Re: Sub and top mismatch ?

Max Warasila said:
God forbid you're like me and go to a local butcher for your meat. No one ever respects local any more...
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I'm afraid that the butcher shop, along with the cobbler's shop and the record store are all long gone. Not that there are many Kmarts, Targets or Safeways around here either. To stay completely off topic, I've got deer grazing in my garden if I should ever get hungry for fresh meat :twisted:
 
Re: Sub and top mismatch ?

per søvik said:
i'm afraid that the butcher shop, along with the cobbler's shop and the record store are all long gone. Not that there are many kmarts, targets or safeways around here either. To stay completely off topic, i've got deer grazing in my garden if i should ever get hungry for fresh meat :twisted:
Click to expand...

Quick- to the crossbow!
 
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