NYE party, 2 OT12's and 4 T30's

Post your reviews and pictures here.
Message
Author
commander_dan
Posts: 461
Joined: Sun Feb 16, 2014 7:19 pm
Location: Perth, Western Australia

NYE party, 2 OT12's and 4 T30's

#1 Post by commander_dan »

Today we are setting up for a house party with the above configuration, in a friends backyard. Pics and review to follow :cowboy:
Happy New Year everyone! Stay safe!
Built:
6 T30 (24", 3012LF)
2 OT12 (MA, 3012HO)
2 T24 (18", 3010LF)

Running:
DCX2496
XTi 2002
XTi 4002
TRAKTOR Z2
TECHNICS 1210 Mk5's

User avatar
Radian
Posts: 2028
Joined: Tue Jul 29, 2008 12:56 pm
Location: Tucson, AZ

Re: NYE party, 2 OT12's and 4 T30's

#2 Post by Radian »

Happy New Year! Here's to a great party and a smooth evening! :hyper:
Good food, good people, good times.

4 - AT
1 - TT
1 - THT Slim
2 - SLA Pro 4x6 Alphalite

User avatar
safebet
Posts: 143
Joined: Sat Apr 24, 2010 5:14 pm
Location: Southern Maine

Re: NYE party, 2 OT12's and 4 T30's

#3 Post by safebet »

Awesome! Have fun, and Happy New Year!

commander_dan
Posts: 461
Joined: Sun Feb 16, 2014 7:19 pm
Location: Perth, Western Australia

Re: NYE party, 2 OT12's and 4 T30's

#4 Post by commander_dan »

Some photos of the setup before the party started. Very much overkill for a house party, we didn't use much more than 1/3 volume (and that was getting loud) but it was a lot of fun! System sounds so good outside.

One comment on the melded arrays, building on my first impression of them a few months back. As I noticed before, they still have a very narrow "sweet spot" when standing dead in line with them. I'm not as impressed with the off-axis dispersion as everyone else here seems to be. Take one step to the side from that central sweet spot, and those super crisp highs are gone. Surely someone else on here notices this? It's pretty hard to miss.

Has anyone ever tried modifying the diffuser to try and even out the dispersion a bit?

Anyways, the party was a hit and everyone was blown away by how good the system was. Love it! Hope you all had a safe one. Happy new year!
Attachments
IMAG0066.jpg
IMAG0070.jpg
IMAG0071.jpg
Built:
6 T30 (24", 3012LF)
2 OT12 (MA, 3012HO)
2 T24 (18", 3010LF)

Running:
DCX2496
XTi 2002
XTi 4002
TRAKTOR Z2
TECHNICS 1210 Mk5's

commander_dan
Posts: 461
Joined: Sun Feb 16, 2014 7:19 pm
Location: Perth, Western Australia

Re: NYE party, 2 OT12's and 4 T30's

#5 Post by commander_dan »

More pics..
Attachments
IMAG0072.jpg
IMAG0076.jpg
IMAG0077.jpg
IMAG0078.jpg
Built:
6 T30 (24", 3012LF)
2 OT12 (MA, 3012HO)
2 T24 (18", 3010LF)

Running:
DCX2496
XTi 2002
XTi 4002
TRAKTOR Z2
TECHNICS 1210 Mk5's

User avatar
safebet
Posts: 143
Joined: Sat Apr 24, 2010 5:14 pm
Location: Southern Maine

Re: NYE party, 2 OT12's and 4 T30's

#6 Post by safebet »

Shorts and an outdoor lawn party on NYE. Love it!
commander_dan wrote: As I noticed before, they still have a very narrow "sweet spot" when standing dead in line with them. I'm not as impressed with the off-axis dispersion as everyone else here seems to be. Take one step to the side from that central sweet spot, and those super crisp highs are gone.
Hopefully the off-axis dispersion is consistent to where you can equalize the system to that condition. I built my custom tops specifically to obtain a very consistent response in the horizontal plane from about 400 Hz up, including through crossover region. As the listening position moves off-axis the affect is similar to simply turning down the volume. They don't have advantages of line arrays though, but my intended use is typically small to medium size venues, or large areas when extreme volume is not necessary. The point is, perhaps maybe you could consider something like the SLA Pro smaller venues.

Hope everyone had a great time.
2 x T30 23" -3012LF v-plate
2 x Econowave Deluxe HO (awesome custom tops using 3012HO and B&C DE250 on QSC horn)
1 x T39 25" -3012LF
1 x Autotuba -Tang Band


"No Toby, I said a PHILLIPS screwdriver..." (Used Cars, 1980)

User avatar
DJPhatman
Posts: 5412
Joined: Mon Aug 14, 2006 5:08 am
Location: Warren, MI
Contact:

Re: NYE party, 2 OT12's and 4 T30's

#7 Post by DJPhatman »

commander_dan wrote:One comment on the melded arrays, building on my first impression of them a few months back. As I noticed before, they still have a very narrow "sweet spot" when standing dead in line with them. I'm not as impressed with the off-axis dispersion as everyone else here seems to be. Take one step to the side from that central sweet spot, and those super crisp highs are gone. Surely someone else on here notices this? It's pretty hard to miss.
Without an RTA, all we can do is guess. My 1st instinct says the the arrays are incorrectly wired, possibly out-of-phase. Do you have Bill's piezo filter installed? For the component cost, it gives a significant smoothing of the piezos and tames the mid-range.

Play a 2.5kHz pink noise, and listen to each individual piezo, to rule out bad drivers. If you can, RTA them in a wide open are, then post the results.
I know money often seals the deal, but seriously, quality is an investment, not an expense... Grant Bunter
Accept the fact that airtight and well-braced are more important than pretty on the inside. Bill Fitzmaurice

User avatar
safebet
Posts: 143
Joined: Sat Apr 24, 2010 5:14 pm
Location: Southern Maine

Re: NYE party, 2 OT12's and 4 T30's

#8 Post by safebet »

DJPhatman wrote: My 1st instinct says the the arrays are incorrectly wired, possibly out-of-phase.
Phase issues from a defective piezo or incorrect wiring certainly would wreak havoc on response and delivery angle consistency.
2 x T30 23" -3012LF v-plate
2 x Econowave Deluxe HO (awesome custom tops using 3012HO and B&C DE250 on QSC horn)
1 x T39 25" -3012LF
1 x Autotuba -Tang Band


"No Toby, I said a PHILLIPS screwdriver..." (Used Cars, 1980)

commander_dan
Posts: 461
Joined: Sun Feb 16, 2014 7:19 pm
Location: Perth, Western Australia

Re: NYE party, 2 OT12's and 4 T30's

#9 Post by commander_dan »

DJPhatman wrote:
Without an RTA, all we can do is guess. My 1st instinct says the the arrays are incorrectly wired, possibly out-of-phase. Do you have Bill's piezo filter installed? For the component cost, it gives a significant smoothing of the piezos and tames the mid-range.

Play a 2.5kHz pink noise, and listen to each individual piezo, to rule out bad drivers. If you can, RTA them in a wide open are, then post the results.
These melded arrays were bought pre constructed by Leland, as were the crossovers, and yes they have the piezo filter installed. I assumed everything would have come tested with Leland's seal of approval which is why I spent the extra money on that option. I suppose I should test them though. To do that pink noise test, do I have to un-solder each piezo and test one at a time? (They are wired up correctly in series/parallel).

The closest thing I have to an RTA is the Dayton audio imm-6 with audio tool..
Built:
6 T30 (24", 3012LF)
2 OT12 (MA, 3012HO)
2 T24 (18", 3010LF)

Running:
DCX2496
XTi 2002
XTi 4002
TRAKTOR Z2
TECHNICS 1210 Mk5's

User avatar
DJPhatman
Posts: 5412
Joined: Mon Aug 14, 2006 5:08 am
Location: Warren, MI
Contact:

Re: NYE party, 2 OT12's and 4 T30's

#10 Post by DJPhatman »

Run them as they are, in cab, running pink sweeps from 2kHz to ~8kHz or so. This will check the filter and piezos. You can isolate just the piezos by unplugging them from the filter board. You don't need a lot of power for the piezos, either. A headphone amp is plenty.

As long as you can get some decent resolution from Audio Tools, you are fine. We just need to see how everything interacts. Take measurements on- and off-axis.
I know money often seals the deal, but seriously, quality is an investment, not an expense... Grant Bunter
Accept the fact that airtight and well-braced are more important than pretty on the inside. Bill Fitzmaurice

CoronaOperator
Posts: 1648
Joined: Wed Mar 25, 2009 7:07 pm
Location: Medicine Hat, Alberta, Canada

Re: NYE party, 2 OT12's and 4 T30's

#11 Post by CoronaOperator »

commander_dan wrote: The closest thing I have to an RTA is the Dayton audio imm-6 with audio tool..
My testing showed no significant difference between the imm-6 mic/audiotools and a DBX mic/REW measurement rig:
http://billfitzmaurice.info/forum/viewt ... +6#p252472
The only issue with audiotools is the low resolution of the bass frequencies as in it doesn't display very many points on the graph.
Built:
17" width 10" driver Autotuba
2 x 29" width dual Lab12 Tuba60
6 x DR250 2510/asd1001
In progress:
2 x DR250 2510/asd1001
For best results, point the loud end of the array towards the audience

User avatar
LelandCrooks
Posts: 7244
Joined: Thu May 04, 2006 9:36 am
Location: Midwest/Kansas/Speaker Nirvana
Contact:

Re: NYE party, 2 OT12's and 4 T30's

#12 Post by LelandCrooks »

Hey Dan, if it's not too hard pull one and take a pic of the backside and send it to me. I haven't made a mistake on arrays in years, but that does not mean it could not happen. Also show where you connected + and - to the array. It's easy to get them backwards. You can either post it here or send it to me directly. webmaster@speakerhardware.com
If it's too loud, you're even older than me! Like me.
http://www.speakerhardware.com

User avatar
Chris_Allen
Posts: 3355
Joined: Wed Jul 11, 2007 2:43 pm
Location: Huddersfield, UK

Re: NYE party, 2 OT12's and 4 T30's

#13 Post by Chris_Allen »

LelandCrooks wrote:Hey Dan, if it's not too hard pull one and take a pic of the backside and send it to me. I haven't made a mistake on arrays in years, but that does not mean it could not happen. Also show where you connected + and - to the array. It's easy to get them backwards. You can either post it here or send it to me directly. webmaster@speakerhardware.com
I took an old array out of a Jack 110 and put it in something else and it sounded like it was knackered. Turned out I had attached the initial + and - to the wrong end.
Built:
6xDR200, 2xT39, 2xT48, 2xJack110, 1xOmni10.5, 1xAutotuba, 1xT18, 1xSLA Pro, 1xW8, 1xW10

commander_dan
Posts: 461
Joined: Sun Feb 16, 2014 7:19 pm
Location: Perth, Western Australia

Re: NYE party, 2 OT12's and 4 T30's

#14 Post by commander_dan »

LelandCrooks wrote:Hey Dan, if it's not too hard pull one and take a pic of the backside and send it to me. I haven't made a mistake on arrays in years, but that does not mean it could not happen. Also show where you connected + and - to the array. It's easy to get them backwards. You can either post it here or send it to me directly. webmaster@speakerhardware.com
Leland, photos as requested. The first 2 are a zoomed out and zoomed in shot of what I've connected to the +ve on the crossover, and the 2nd 2 are of the -ve side.
Attachments
Pos side.jpg
piezo + to crossover +.jpg
neg side.jpg
piezo - to crossover -.jpg
Built:
6 T30 (24", 3012LF)
2 OT12 (MA, 3012HO)
2 T24 (18", 3010LF)

Running:
DCX2496
XTi 2002
XTi 4002
TRAKTOR Z2
TECHNICS 1210 Mk5's

commander_dan
Posts: 461
Joined: Sun Feb 16, 2014 7:19 pm
Location: Perth, Western Australia

Re: NYE party, 2 OT12's and 4 T30's

#15 Post by commander_dan »

Chris_Allen wrote:I took an old array out of a Jack 110 and put it in something else and it sounded like it was knackered. Turned out I had attached the initial + and - to the wrong end.
I'm hoping that's what I've done Chris, although the arrays in their current wiring sound far from knackered; they sound amazing! Super clean, crisp and crazy loud while retaining that clarity.
Built:
6 T30 (24", 3012LF)
2 OT12 (MA, 3012HO)
2 T24 (18", 3010LF)

Running:
DCX2496
XTi 2002
XTi 4002
TRAKTOR Z2
TECHNICS 1210 Mk5's

Post Reply