| subs that SNAP instead of FLAP [message #381610] |
Thu, 27 November 2008 06:13  |
 Cliff Adams
Messages: 10
Registered: November 2008 |
Here Often |
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I am assembling a new PA rig: I have 4 EV Sx300s and a Crown Xti 2000 to drive them. Need a pair of subs that are not horrendously heavy! I want to maintain a healthy volume so that people can converse as they enjoy the music, BUT feel motivated to dance. The point is - I care!
Personally, I've always liked the sound of bass guitar speakers on a PA, because you get lots of warm tone. But many consumers/dancefloor pedestrians seem to want piled-up bass frequencies that loosen building mortar and chase older audience members - my beloved Baby Boomers - out of the joint.
Group is bass, drums, guitar, synth, boy singer, girl singer. Volume 110db-ish.
Let's do the physically impossible; have bass that snaps instead of flaps, with a pair of compact subs, with power for my synths and kick to support my vocalists. Suggestions? 
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| Re: subs that SNAP instead of FLAP [message #381857 is a reply to message #381610 ] |
Fri, 28 November 2008 12:28  |
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Andy Peters
Messages: 6825
Registered: April 2004
Location: Tucson, AZ |
Has No Life
Contrarian |
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| Cliff Adams wrote on Thu, 27 November 2008 05:13 |
I want to maintain a healthy volume so that people can converse as they enjoy the music
Volume 110db-ish.
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I suppose this makes sense, if by "converse" you mean "scream into the ear of the person standing next to you."
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Let's do the physically impossible; have bass that snaps instead of flaps
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Bass doesn't "snap." "Snap" comes from the top boxes.
-a
"It is pitch black. You are likely to be eaten by a grue."
"On the Internet, nobody can hear you mix a band."
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| Re: subs that SNAP instead of FLAP [message #381916 is a reply to message #381879 ] |
Fri, 28 November 2008 16:12 |
Winston Gamble
Messages: 544
Registered: April 2004
Location: Utah |
Has No Life |
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| Jeff Babcock wrote on Fri, 28 November 2008 19:07 |
| Winston Gamble wrote on Fri, 28 November 2008 13:07 |
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I call bull on some of those specs. For instance compare SRX718 to LS608. Both have an 18" driver. The LS608 also is partially horn-loaded AND does not go as low, but the JBL is still claiming to have more output. Sure.... 
I happen to trust Danley measurements since they are done by a 3rd party and they actually try to be accurate within the intended usable frequency range. I'd bet some of the other numbers you see are from a frequency you'd rather not hear a subwoofer produce.
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I think it's pretty healthy habit to question most specs you see.
However, seeing as I enjoy playing the devil's advocate I'll point out that the SRX is rated 800w continuous 1600w program and publishes a measured frequency response that pretty closely backs up its sensitivity rating. While Yorkville tells us that the 608 has a sensitivity of 103dB, they give us zero information as to how or where that rating was attained. As for it's power handling, we get "LF program power 800w". I probably should have noted that for my list in an attempt to have apples to apples comparisons, I normalized the SPL ratings to half space numbers in addition to program power. While I tried to be careful, I wouldn't be at all surprised to learn of a mistake I made in collecting/calculating the numbers.
I've never measured what either sub will actually do at program power, but the math basicaly works and it makes sense to me that double the power might just make up for the efficiency gains of semi horn loading.
Having never heard any Yorkville products outside of an ancient pair if Traynor tops that one of the local Coffee House concert series uses, I included them in my consideration mostly based on their favorable reputation here on PSW despite their IMO inadequate spec sheets.
YMMV, Winston.
http://www.myspace.com/sisterwives
http://www.sisterwivesband.com
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95-98dBa at FOH in small venues is about our usual.
