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View Full Version : new speakwrs to support myu new DHC80.1



lgvenable
12-12-2009, 10:05 PM
I want to build some custom front drivers into killer cabinents; driven my mon-triamplifiers (made by ab systems at 250 >150>150 wpc 8ohm).

The 713's have active crossovers: http://www.abamps.com/713a.pdf;
these were a rare find at the Chicago Museum of Science and Industry; and I'd like to configure my older L00T system using the w new DIY speakers:
with

2202H mid bass (as mid bass horns?)
2445J compression drivers wit 2385A horns (as mid horns)
and 2404H Baby Cheeks as my HF drivers.

I need suggestions to build a mid bass driver box (horn loaded?), then set the amps for the proper x-over points to get an even flat response.

Alternately: I'm willing to get dBX drivereack 260 to help time align the output on each channel will have its own set of amplifiers for every two speakers

All of these were part of the museums electronics before they went IMAX.

lgvenable
12-14-2009, 07:40 PM
I was hoping one of the members who could help with design of a set of custom front speakers>

I wanted to use
mid-bass.........12" drivers...2202H (8ohm)
mid horn.........compression driver with horn:2445J/2385A (16 ohm)
HF Horn:.........2404H (8 ohm) baby cheeks

all driven by an AB Systems 713 mon-triamp all @ 8 ohm:
250 watts....bass
150 watts....mids
150 watts....HF

The 713 has an active crossover, which allows you to control the crossover points from the amp. Alternately, I'm also considering using a dBX driver rack 260 to control the x-over points, as well as time aligning the mid bass with the horns.

I was looking for suggestions for a cabinet, and crossover points for each driver to use. Should I use one 2202 or two/channel etc?

Right now I'm using a set of L100T's as my front left-right, and two L100A's as my front-center. I wanted to build three speakers, all identical. While I might have to pick up some 2202H/2204H's...

>> I have 2 x 2202H and 2 x 128H 12" drivers to start...but wanted to use identical 12 drivers in the project)
>> I have 8 x 2245J's with 5 x 2385A horns,
>> I also have 8 x 2404 HF drivers.

Can anyone help me on the type bass cabinet? I had considered a single 2202H in a folded horn design (like a 4663).

Any help is appreciated.;)

Larry

lgvenable
12-14-2009, 08:08 PM
or perhaps a version of the 4704 w/2404H HF drivers?

lgvenable
12-14-2009, 09:35 PM
or exactly like the SR4732N except a single 12" driver