Here is the start of Negatron 2 HT

Update on new setup.
We have a new LG 86" 4K FP, 6 amp has been reconfigured to 6 ICEPOWER 125ASX2BTL modules (to power all 3 pairs of woofers for the front 3 channels), Celestion woofers have replaced the Kappa 15c woofers (currently for the left and right channels, but after the new year all will be replaced with Celestions), All of my DIY electronics are receiving a face-lift of Mahagony inlays or replacing the aluminum faceplate with solid Mahagony. I also have been working on sanding my MEH copper plates for the MEHs. Acoustic panels are now up...except for the center one (which will becinstalled Friday).New curtain valances have also been installed.

I will be making 2 Mini MEHs out of MDF/Plywood, and covering with Mahagony veneer. In addition I still have a spare k402 horn and I will be making another full size MEH (duplicate of my center channel). The center channel and the duplicate will be moved to my surrounds. The MINI MEHs will most likely be moved to rear surrounds (unless the sound and look of them is preferred to the original MEHs...in which case they will become my mains). I also am planning on making, a full size k402 MEH out the same materials as the MINI MEHs.

I have to say that the performance with the Celestions is better than the Kappa 15Cs by far on mid to lower bass, but I still need to get a proper tune (since I am using the same tune as the Kappa currently)

The 2nd image is my Cisco switch with a 1/8" overlay of Mahagony... I still need to do one more sanding and then spray it.

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That's some fantastic work. Nice system!
 
A little update. Yesterday we CND`d some mahogany wood for modification to all my amp cases. Here are a couple of pics of the modifications for the big amp. I still have more work to do on ir....drill mounting holes, sand, clearcoat, 43 brackets for holding the amp modules on their sides (for the center modu l es). The amp will now be used as a 7 channel amp. It will power the woofers for the front 3 channels and also my 3 height channels.1643939726196_0_received_3754532968104158.webp
 
Been awhile...so here is the update:
We are still working on a all wood full size K402MEH, and 2 all wood mini K402 (square). In addition I now have a Lumin U1 Mini streamer, Denafrips Pontis ii DAc, and I am waiting for my Denafrips Athena preamp.
 
Update: I have come up with a new design for a rack inside of a cabinet. The new design will keep all the equipment concealed, free of dust (I know it will not be 100% free of dust, but it will be considerably better than my current setup), and will provide cooling . The rack shelves are made of 1 1/4" wide steel plate that has been cut, welded, and painted with charcoal grey metallic automotive paint by a body shop. The rack shelves are completed and each of the metal rack shelves will be supported by 7 1 1/4" Parota wood rods. each of the rods has a 1/4' 3" long piece of allthread, attached via threaded inserts on each end of the rods. 1st step for assembly will be to attach each of the 7 rods the topside of the bottom of the cabinet via 7 1/4" allthread and then 7 hockey pucks swill be attached to the bottom of the cabinet. once this is done, I will lay 1 metal shelf on top of the 7 Parota rods, and then lay a 1" thick Parota wood shelf on top of the metal shelf. Next, I will screw the next 7 rods through the metal shelf to the 1st layer of 7 Parota wood rods... then I will keep doing this until all 4 shelves and the top and bottom Parota is completed. Then we will measure the distance from the top of the bottom piece of the cabinet to the bottom of the top piece of the cabinet (for the construction ofslatted panels).. The front and sides will be made of 1 Parota wood frame that has black grill cloth attached to it, and then 1x1 strips of Perota wood will be run vertically with each piece separated by approximately 1". I have not decided if i want the rear to also have slats or just a frame with grill cloth, yet. The cabinet will be a bit over 6' wide x 4' high, by 28" deep. I will also be installing LED lighting facing downward from the top of the cabinet.

The end of the month we will be building a pair of Joseph Crowe subwoofers. The cabinets will be made of plywood and then wrapped with 1" Parota wood. Sometime next moth they subs should be ready for testing, and then the cabinets will be sent to my carpenter to mod with Parota wood.

Then the long awaited MEH wood horns will be started. The first 1 or 2 will be made of MDF stacked layers, and if they come out as expected, I will try 2 or 3 of them out of stacked Parota wood. The MDF versions will be painted to match the charcoal grey shelves. The last part of the the horns will be to try them cabinet less, and if i like them that way they will be complete...if not I will make cabinets out of MDF for the 2 MDF horns and paint them to match the MDF MEH. Then I will look at how the Parota horns look with a mdf cabinet. If the contrast looks nice I will most likely stop there.
 
first shelf for the rack being finalized on design, I should have all 6 pieces this weekend, ready to bring home and trial fit. If all is well, then my carpenter will come over and measure for the cabinet sides, doors, and rear vented panel. Next he will sand, oil, seal, top coats, and sand to finish. The large slot in the wood is the rear of the shelf and is for wire routing.shelf combo 1.webpshelf combo 2.webpshelf combo 3.webp
 
Here is the mockup with 3 shelves... I am going to get some 7" rods and make the rack just a bit taller....should be around 4' tall when completed. Next we make the doors, side panels, and rear panel...then disassemble, finish modifications to the shelves, sand more, oil, seal, and top coat for everything. Once that id done I will move it to inside the house, reassemble and start transferring equipment to the new rack.

rack end.webpRack 1.webprack rear.webp
 
Been a long time waiting.... I have new progress, and will post pictures soon. The rack portion of the cabinet has changed, and it will be starting as a flexirack with carbonfiber tubes and aluminum ends. The k402 horns are now cabinetless with Mesquite woofer pads and a similar wood for a mount/stand. The k402 stand is similar to the rack with carbonfiber tubing and allthread. All speaker and amp wiring is with chinese clone wires. Lastly we have 2 f20 subs that are being used with the k402MEH as a 3 way.
 
Here is the new orientation of my ht, and my f20 subs...along with my k402MEHs. I am running the MEHs as cabinetless, and in the near future I will return to the k402s eing run vertical and the f20 vertical too. Updated pics show the new woofers and compression driver along with the Mesquite woofer boards.20240610_165843.webp20240610_165815.webp20240610_165452.webp
 
New front configuration with horn/amp stands. I know it is not a preferred setup layout, but until I get a dedicated room... I am doing the best I can for setup. With a dedicated room... I would have the speakers spaced from the walls for optimum sound. Currently I am pushing the limits with WAF in our living room.20240712_185156.webpreceived_1002086891925972.webp
 
New Fosi v3 amps for the compression drivers...pic is with my copper bottom sinks and copper/orange anodized aluminum feet.
 

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My wife said the room was to dark with the black grills and acoustic panels,, so...

Temporary grill holders. I have them now mounted with stainless steel "J" brackets and they are easily removed (not as easy as magnets, but the grills were to heavy for the magnets).



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