The Monolith open baffle planar speakers

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HAL

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Re: The Monolith open baffle planar speakers
« Reply #20 on: 21 Oct 2017, 08:38 pm »
The Monolith test baffle with the new GR Neo3 and BG Neo10 installed.  Next for some wiring and checkout.



HAL

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Re: The Monolith open baffle planar speakers
« Reply #21 on: 22 Oct 2017, 02:17 pm »
The planar mid and tweeter are wired and ready for testing. The 14awg polyolefin insulated wiring has been very easy to work with for the drivers.

Now to connect up to the Parasound A23 and see if we let out any magic smoke. If not, measurements.

Next is wire up the two 3x8" servo sub arrays and HX300 amps.



HAL

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Re: The Monolith open baffle planar speakers
« Reply #22 on: 22 Oct 2017, 07:47 pm »
The open baffle planar top sitting on the 3x8" H-Frame for the servo subs.  Getting ready for measurements.



HAL

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Re: The Monolith open baffle planar speakers
« Reply #23 on: 23 Oct 2017, 12:53 am »
Pocket CLIO and calibrated mic running with the Parasound Halo A23 amp for GR Neo3 and BG Neo10 measurements in the OB is alive and well! :)

Now to find a good spot in the room with low reflections to make some far field measurements.

HAL

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Re: The Monolith open baffle planar speakers
« Reply #24 on: 24 Oct 2017, 12:15 pm »
Second test baffle with original GR Neo3-PDR and BG Neo10 planars installed and wired.  Working with the Parasounds Zamp V.3 for testing.



HAL

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Re: The Monolith open baffle planar speakers
« Reply #25 on: 24 Oct 2017, 01:44 pm »
Talked to Danny and the 8" servo subs are all gone.  Time to go back to the pair of 2x12 H-Frame servo subs.  Will get some and run them from the HX300's I have.  Works well for this setup from past trials.

Or I can just use the two 6x12" servo subs for some fun. :)

HAL

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Re: The Monolith open baffle planar speakers
« Reply #26 on: 24 Oct 2017, 09:22 pm »
Weather was good today so tried the measurement setup outside on the deck.  Still some bugs to work out, so more tomorrow more trials if the weather is good.



THROWBACK

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Re: The Monolith open baffle planar speakers
« Reply #27 on: 24 Oct 2017, 10:21 pm »
We don't have any bugs on our deck in Colorado, Rich . . .

HAL

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Re: The Monolith open baffle planar speakers
« Reply #28 on: 24 Oct 2017, 10:25 pm »
Luckily most of those types of bugs were not out.   :D

HAL

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Re: The Monolith open baffle planar speakers
« Reply #29 on: 25 Oct 2017, 12:12 pm »
Discovered something I had forgotten.

The tweeters in these baffles are BG Neo3-PDR's not the GR versions.  The pair of GR versions went to a person wanting to build another GR speaker system that needed those. 

Weather looks good so will try another round of measurements today.  Found out the connection terminals on the Neo3-PDR were to close to the rivets and shorting out.  Dropped the tweeter level way down, so now insulation is on the rivets to stop that from happening. 

Just got the msg that the second Parasound Halo A23 amp arrives today to power the system.  :)

HAL

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Re: The Monolith open baffle planar speakers
« Reply #30 on: 26 Oct 2017, 01:07 am »
Did a BG Neo10 comparison of an original and new production planar on the mirror image open baffles.  Had to swap baffles around, so expected some variation.  Looks very close to me with the range expanded to 5dB/Div.



HAL

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Re: The Monolith open baffle planar speakers
« Reply #31 on: 30 Oct 2017, 01:41 pm »
Time for some yarn install on the GR Neo3 planar tweeter for testing.  Will be following the instructions Danny posted. 

Will go slow and see what happens.   :o

HAL

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Re: The Monolith open baffle planar speakers
« Reply #32 on: 30 Oct 2017, 09:39 pm »
In the mean time the connectors and wire to build up the servo subs are here.  Wiring up the HX300 servo amps for use.

Getting two 2x12 modular H-Frame open baffle servo sub cabinet flatpacks for build-up.  Will setup a second system for trials.

studiotech

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Re: The Monolith open baffle planar speakers
« Reply #33 on: 30 Oct 2017, 10:00 pm »
Did a BG Neo10 comparison of an original and new production planar on the mirror image open baffles.  Had to swap baffles around, so expected some variation.  Looks very close to me with the range expanded to 5dB/Div.



I'm thinking these drivers are all N.O.S. from before the buyout by Christie.  Do you know for certain that  they are newly made?

Greg

HAL

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Re: The Monolith open baffle planar speakers
« Reply #34 on: 30 Oct 2017, 10:10 pm »
Yes, they are new production when I asked PE. 

HAL

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Re: The Monolith open baffle planar speakers
« Reply #35 on: 31 Oct 2017, 10:45 am »
Pictures of the modular 2x12 open baffle H-Frames cabinets dry fitted before packing and shipment for glue-up and speaker install.  Will use the time delay capabilities of the dspMusikLCD to time align the planars to the servo subs for the correct wavefront launch at the front. 

Connectors and wire are here, so will be doing this after CAF2017 this week.

Hope to see folks at the show in Rockville, MD 3-5 Nov at the Hilton.




« Last Edit: 31 Oct 2017, 11:51 am by HAL »

HAL

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Re: The Monolith open baffle planar speakers
« Reply #36 on: 31 Oct 2017, 08:34 pm »
Made some new measurements of a baffle with the new planars today to check a baffle modification out.

Should be interesting to hear the difference.

Still need to put the yarn in the GR Neo3 tweeter.  Now time to try that.

HAL

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Re: The Monolith open baffle planar speakers
« Reply #37 on: 8 Nov 2017, 07:05 pm »
Modified the first GR Neo3 planar tweeter today for the Monolith speakers.

Next will be measurements once the rain is passed and dried up for an outside setup.


HAL

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Re: The Monolith open baffle planar speakers
« Reply #38 on: 9 Nov 2017, 07:55 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. 



HAL

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Re: The Monolith open baffle planar speakers
« Reply #39 on: 14 Nov 2017, 03:10 am »
Looks like the two modular 2x12 ob H-frame servo sub flat packs arrive Friday.   Then to do the glue-up and be ready for servo subs to be installed and wired. 

Neutrik Speakon connectors and Belden wire are here.  Have the two Rythmik HX300 servo amps wired to the mating Speakon 4-wire connectors ready to go.

Found a finishing group and working on a 1x12 module now.  Should have the first one done by Friday.  The test color is gloss Hot Rod black.