In need of serious bass for DJ rig.

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#21
wg_ski said:
18" mains should only be considered if you are limited on power and running subless. Crossing over at 80-100, two 12's will do the job. My smaller rig has four TH18 and a single pair of 2x12 tops. For dance music it's about right. When arraying you have to consider pattern control - if you don't it just sounds like mush. You want no holes, but minimal overlap in the HF if you're arraying horizontally. The right HF horn, and a 2" compression driver help here - because you can lower the crossover frequency and let the HF horn do its job down to that lower frequency. 3 ways don't array well horizontally unless they are all horn loaded and have pattern control over their entire frequency range. With a typical 15" 3 way with a cone mid, the mids are just too far apart and the horn is crossed too high. You move side to side and get that weird phasey sound. The other really good reason to use 12's is that 12's and 2"HF drivers are really good building blocks for building a proper line array... later. Less wasted money on intermediate steps.
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This was my concern, thanks for clarification there.

So I should be looking at pursuing a 2x12 solution for the mains and a larger horn driver? How baout horn selection, any suggestions ?

THanks,
-Zphere
 
#22

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#30
nigelwright7557 said:
As a mobile DJ I have struggled with cabinets with one 18 inch sub in them.
So unless you have a fork lift truck handy you will need to stick with single 18" drivers in cabinets.
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Most any sub with built in casters can be moved by one person. Even 240 pound labhorns. Stairs, on the other hand do pose a challenge. The solution is real simple: Tell the client that either he provides freight elevator access or "we'll be bringing the little subs". Many times the keys will magically appear.
 
#31
wg_ski said:
Most any sub with built in casters can be moved by one person. Even 240 pound labhorns. Stairs, on the other hand do pose a challenge. The solution is real simple: Tell the client that either he provides freight elevator access or "we'll be bringing the little subs". Many times the keys will magically appear.
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I have been moving big things in excess of 200 Lbs up and down stairs for a while now, and none of those items were even remotely as exciting as a sound system. I don't mean hefting stuff around if I have too. I have some decent hand trucks and other essentials already for this reason.

Anyways, as for the low end I've decided that I am going to start by building 8 Othorns loaded with the B&C 18TBW100 driver which is essentially the 18" version of the B&C 21SW152-4.

It was between that or building 4 with the 21" driver. I finally am getting the hang of HOrnResp and the 18" driver models almost identically to the 21" driver with a slightly higher roll off (32Hz vs 30Hz). For the same amount of amplifier power and driver cost I can have twice as many cabinets which means I can move more air for about the same cost (outside of cabinet construction and cost) without sacrificing the Othorn's capabilities.

I feel this is a happy medium for what I personally desire.

Thoughts?
-Zphere
 
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