BillFitzmaurice.info

what the baby of the line can do. Here's just a quick shot of what a four high stack of DR200s can do at 250'. The sound is crisp and clear, I also walked down the road, and it was 85db down the hills and through the trees... lost a little HF, but still quite audible at 650' line of sight. At about 10' in front of the stack, the meter was reading 126db and flashing, indicating it was over range.

Is that what you guys mean when you use the smiley?

Nice! Those sound great.

The is usually used in the company of skull crushing bass or anything relating to the THT or T60.

loud and clear man

That is so cool!

Turn around so we can see the stack behind you

loudsubz wrote:Turn around so we can see the stack behind you

Still running the ribbons?

Greg Plouvier wrote:Still running the ribbons?

Of course. It's amazing what they can do.

Yeah, so I found out today that the neighbor through the woods called later that evening to find out what the fuss was. Apparently she liked the music, but was startled by the sudden appearance thereof.

BrentEvans wrote:Yeah, so I found out today that the neighbor through the woods called later that evening to find out what the fuss was. Apparently she liked the music, but was startled by the sudden appearance thereof.

+1
I wish my neighbors were nice enough to call.

I wish I had more big gigs to use 4 perside Well i'll keep bothering my neighbors then.

Thanks for sharing, this was curios, I had a good time watching!

Just ran the math on that. For the uninitiated, 99 dB SPL sustained vocals at 250 feet out is well above large venue rock concert level. All on less than 100 watts.

Radian wrote:Just ran the math on that. For the uninitiated, 99 dB SPL sustained vocals at 250 feet out is well above large venue rock concert level.

I should have taken some video in the deafness zone... it was so loud my meter was peaked out... so that puts it somewhere above 127db...

All on less than 100 watts.

Well... not quite 100 watts. My DR200s are biamped... all of an IPR3000 into the LF and an IPR1600 into the HF, plus 2x1000w amps for the subs... I didn't measure voltages going to the speakers, but given that the DDT limiters were flashing, it was probably more than 100RMS.

1 IPR3000 @ 840w x 2 (4 ohm loads)
1 IPR1600 @ 300w x 2 (8 ohm loads)
2 Dayton SPA1000 @ 940w (4 ohm loads)

If you add all that up, it's 4160W of "theoretical" amp power available. Perhaps it was getting that on some of the peaks. However... given that this was running on a 15A circuit and 150' of 12/3 (along with the well), voltage was drawing down to about 90-95 on the AC circuit. Therefore, it probably wasn't drawing more than 10A out of the outlet... hat's also in line with the 1/3 power duty ratings of the amps... 4160/3=1386W.

Anyway, whether it's 100, 1386, or 4160... it's still stupid loud, and crazy fun.

BrentEvans wrote:My DR200s are biamped...

Forgot about that.

Definitely wasn't including the subs in that figure.