[HAL]

To go with the MG10/QR DSP Crossover project, worked with folks to develop a modular 8in Servo Sub OB H-Frame 4x8 stack.  These are for the GR-Research 8in servo subs from the latest design.  These will work below the 80Hz cutoff of the planars down to 30Hz. 

These are the flat packs being test fitted before glue-up and then off to be painted.

Getting them ready for CAF2023.

[kd4ylq]

Please keep us informed as this product is developed and brought to market - with pictures and data along the way!

[Early B.]

Please keep us informed as this product is developed and brought to market - with pictures and data along the way!

Yes, please do so. I'm also interested in these. Will these cabinets fit the old 8" OB drivers as well?
 

[HAL]

You would need to ask Danny, but I believe they are the same size as the original 8in servo sub drivers.

[HAL]

Checked out the grill frames that insert into the OB H-Frame module face.

Then glued and clamped the first module to do a test fit of the 8in servo woofer.

Will wire up the driver connections before installing.  It is a tight fit in the module.

[nlitworld]

Rich, I'm super excited to see how these turn out. Could you elaborate to the outside dimensions of the modules?

[rollo]

  Hal, is there anything you cannot make. One talented Man.

charles

[HAL]

Rich, I'm super excited to see how these turn out. Could you elaborate to the outside dimensions of the modules?

nlitworld,
The outer dimensions are approximately 12.25inW x 12.25inD x 11.5inH.  For when they stack the tops and bottoms of each module are 1/2 thickness of the sides. 

Charles,
I know talented people that can do great work.  I just come up with some ideas.

Rich

[HAL]

Two of the 8in OB H-Frames with the sub drivers installed and wired.

Time for some testing.

[HAL]

Building two more of the 8in sub modules today and install the servo drivers tomorrow.

Waiting on more Neutrik connectors to arrive today to be ready for the next 4x8 stack being done.

[Tyson]

Can you run 3 of them stacked and use them as stands for bookshelf sized speakers?

[HAL]

Tyson,
That would be a 5.3 Ohm load and fine for any Rythmik Audio servo amp.

With the bass and top would be about 38in high.   

[HAL]

Finished the 4th sub module and the rest of the wiring for the 8in servo subs.

Once the 4th module glue has set, then install the next two servo woofers and wire them up.

[HAL]

The first 4x8 H-Frame stack is complete.  The glue for module#4 will be dry by tonight to install the last 8in servo woofer.

The 3x8 H-Frame stack is either 36.75" tall or 35.75" tall depending on if the top cap is installed.  A bit lower for putting a small 2-way monitor on to add extension to 30Hz.

[HAL]

Assembling the last 2 modules this week and then getting a finishing estimate for the two 4x8in stacks.

Will be testing them soon with hopefully the latest generation Rythmik Audio HX series amps customized for these drivers. 

[HAL]

Last sub module assembled and drying overnight. 

Also received the reworked Magna Risers for the larger bolts in the MG10/QR's with the new stainless steel machine screws.

[HAL]

Both 4x8in servo sub towers are complete.

This is the idea with the MG10/QR's with the Magna Risers stands installed.

Now for some measurements to see what is needed for the DSP crossover.

[Tyson]

Very cool.  Are you running the MG10's active, or just the subs?

[HAL]

The system will be entirely active with the dspNexus 2x8 as the control system.  The MQ10/QR's will be driven from 80Hz up with a pair of Orchard Audio Starkrimson Monos as 2-way active.

Even the sub crossovers are being modified in the DSP for better response to crossover with the MG10/QR's.  Did this with the Magnetar II speakers and 3x12 servo subs.  Made a big difference using the AVR input setting.   

Then time delay the mains to match the subs in their best locations. 



 

[Tyson]

Oh man, that's gonna be nice!