I know this is an older post, but I'ma answer it for you...I find it weird that the Itech has a higher stereo wattage per channel at 4 ohms than the bridged output. (5000 stereo vs 4000 bridged and I've seen it as low as 3600 bridged)Like you suggested, the 2 4 ohm loads is the best bet. The DBH 218 has two NL4 inputs and can be run using 2 4 ohm loads instead of a single 2 ohm load. It would be 1800 per driver. It's simple division.While the Danley is considered 3600, its program is 7200. I'd suggest trying to have 7200 so you have some headroom but the box has very high sensitivity so anywhere after 1000 is gonna be insanely loud. 5000 should work nicely though. I'd just go with the Itech 9000HD instead, as it'd get you 7000.Is that Itech a 20/30 amp plug? Or a 15 (I highly doubt a 15 but if it is, then the 5000 would definitely be the one to go for).. I'd think the 9000/12000 would at least a 20 and most likely a 30.. But I'm not familiar with that series, mostly QSC amps being used on my end.
would this be advisable?Power Ratings 2-ohm Dual (per ch), 20mS burst: 3,000W 2-ohm Dual (per ch), 20Hz-20kHz: 2,000W 2-ohm Dual (per ch), 1kHz: 2,000W 4-ohm Dual (per ch): 2,500W 8-ohm Dual (per ch): 1,250W 4-ohm Bridge: 4,000W 8-ohm Bridge: 5,000WI would run it in stereo @ 4ohm driving each 18 at 4ohmLooks like the Danley is 3600 watts and can be ran mono at 2 ohm or to each speaker seprately at 4ohm so I'm guessing that's 1800 watts per driver. Is my math correct?
I much prefer this setup over TH812's, however output per $ wins with TH812...by a substantial amount.
Why so, if you don't mind me asking?
Can I add my observations as well?Tapped horns compared to more traditional folded horns, aren't quite as smooth in the time domain across the frequency spectrum. A folded horn sounds to me at least to have better impulse response, and "hits" better. My favorite subs, especially in quantity, are th he DBH, DBH LC, and BC218. For us with med/larger installs, having clean, deep, max impact bass is the goal. We're willing to sacrifice physical size and weight. For us, using something between one DBH and 8+ BC218 or LC, covers nearly every application. We fly the subs wherever possible. Tapped horns aren't bad by any stretch. They seem to shine when one needs lots of output from a small physical box.For output per dollar, If using outdoor weatherized subs, yes the 812 is better. For normal applications, the regular DBH is slightly better.Caleb
My favorite subs, especially in quantity, are th he DBH, DBH LC, and BC218. Caleb
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