Author Topic: The Monolith open baffle planar array  (Read 8383 times)

Offline HAL

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Re: The Monolith open baffle planar array
« Reply #30 on: November 09, 2017, 12:30:32 PM »
The weather was good today, so did measurement tests with the moded GR Neo3 and new production BG Neo10 on my test baffle. 

These were far field gated time measurements on tweeter center axis using Pocket CLIO and calibrated mic.

Now to build a digital crossover and see what happens. 

Offline HAL

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Re: The Monolith open baffle planar array
« Reply #31 on: November 14, 2017, 02:32:53 PM »
The two modular 2x12 open baffle H-Frame flat packs arrive Friday.  Will start glue-up this weekend.

Will be talking to the paint finishing group on Friday as well and see a test finish on a modular cabinet.

The new planar test baffles are looking good and now to wait for the flat packs to be done.

Offline HAL

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Re: The Monolith open baffle planar array
« Reply #32 on: November 16, 2017, 02:12:30 PM »
Just to document the wiring scheme for the Rythmik HX300 servo amp wiring:

Wire with heat shrink is the driver coil connections to Speakon, 1- Yellow = -, and 1+ Black = +

Wire without heat shrink is the servo coil connections to Speakon, 2 - Yellow = -, and 2 + Black = +

Have the TRS to miniXLR cables ready to try with the dspMusikLCD.

Wiring to the 8 dspMusikLCD DAC's to the amp channels will be:

Outputs 1 = GR Neo3 tweeter, 3 = BG Neo10 midrange, 5 = GR servo sub are left channel connections (top TRS connectors)

Outputs 2 = GR Neo3 tweeter, 4 = BG Neo10 midrange, 6 = GR servo sub are right channel connections(bottom TRS connectors)

Outputs 7 left and 8 right are direct wired input to DAC channels for use with a headphone amp or extra subs if time delay is added.

If you need RCA connectors, then TRS to dual RCA connectors can be used and the right channel (red) output is the + polarity for each channel.

Offline HAL

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Re: The Monolith open baffle planar array
« Reply #33 on: November 21, 2017, 05:48:35 AM »
The 4 - GR-Research SW-12-16FR servo drivers will be here today.  All the rest of the parts are here, so will be time to start building them over the holidays. 

Will see what these sound like with the OB Neo3/Neo10 baffles.  Already wired and ready to go with two of the ChipAmp style balanced input amps with the dspMusikLCD driving them.


Offline HAL

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Re: The Monolith open baffle planar array
« Reply #34 on: November 22, 2017, 04:25:51 AM »
Got the 4 servo drivers yesterday and now everything is in storage until after the holidays.

Will post pictures of the build process as it goes on.

Offline HAL

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Re: The Monolith open baffle planar array
« Reply #35 on: November 22, 2017, 06:41:21 PM »
The Monolith build will be on hold to late January, 2018 as it is time to start working on the next update to The Megaliths with the 16 channel dspMusikLCD arriving early Dec. 

Now off to doing the next version of the digital crossover.

Offline HAL

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Re: The Monolith open baffle planar array
« Reply #36 on: January 02, 2018, 11:39:55 AM »
Starting the build of the two 2x12 modular H-Frame servo sub flatpack builds.

The shipping box contains parts for one 2x12 and extremely well packed to protect against shipping gorillas. The flat packs have all the parts and very well packed from Jay and Don. Just supply glue and clamps.

New bottle of Titebond III glue like I used on the 6x12's awhile back.

Unpacked and time to let the Medex come to room temperature before gluing.

The first set of GR-Research SW-12-16FR servo sub drivers are unboxed from the main box for the individual boxes for protection.

Wiring for the Rythmik Audio HX300 servo amps are done, Just have to wire the drivers to Speakon connectors..

Offline HAL

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Re: The Monolith open baffle planar array
« Reply #37 on: January 04, 2018, 10:56:04 AM »
First 2x12 H-Frame modules built and test fit with the top and bottom. 

Once snomageddon is over will get the other box out of storage and build it up.


Offline HAL

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Re: The Monolith open baffle planar array
« Reply #38 on: January 06, 2018, 03:52:11 AM »
Modules #3 and #4 are complete.  Will be time today to test fit the drivers and setup the wiring.


Offline HAL

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Re: The Monolith open baffle planar array
« Reply #39 on: January 06, 2018, 04:47:34 AM »
The two 2x12 H-Frames are completed.  Time for driver install and wiring harness.  Then some testing.

Offline HAL

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Re: The Monolith open baffle planar array
« Reply #40 on: January 06, 2018, 02:24:53 PM »
Drivers installed in one 2x12 and wiring started.

Offline HAL

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Re: The Monolith open baffle planar array
« Reply #41 on: January 07, 2018, 06:22:46 AM »
Drivers installed and wiring for the speakers is done. Now for some testing.

Will be using a dspMusikLCD 2x8 for both measurements and testing for the digital crossover for The Monoliths.

Offline richidoo

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Re: The Monolith open baffle planar array
« Reply #42 on: January 07, 2018, 11:46:37 AM »
What's the difference between monoliths and megaliths?

This 2 driver bass module goes with the monoliths, right?
Will the monolith tops go on top of it, or separate like megaliths?

Offline HAL

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Re: The Monolith open baffle planar array
« Reply #43 on: January 07, 2018, 11:56:28 AM »
The Monoliths are the single GR Neo3 and BG Neo10 in an open baffle top that sits on the 2x12 servo subs.  Will post a picture of the prototype shortly.

The Megaliths are the open baffle planar/ribbon line arrays with the 6x12 servo subs. 

Offline HAL

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Re: The Monolith open baffle planar array
« Reply #44 on: January 07, 2018, 01:47:45 PM »
Setup the new measurement system for the 2x12 servo subs using Room EQ Wizard driving the dspMusikLCD from my PC Netbook. This is very similar to me running it with the MS-3 Music Server. 

REW's latest beta software added ASIO drivers running at 24bit/192KHz that work correctly with the dspMusikLCD.  Nice easy setup for the system.

Using the Earthworks M550 calibrated Omni and 1021 mic preamp for input to the dspMusikLCD.  Works very well with an extremely short impulse response for a measurement mic. 

Tried a ground plane measurement with success and next some nearfield measurements to compare.