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Aloha F5 v3 part 2, console build
Aloha F5 v3 part 2, console build
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Old 6th November 2017, 03:18 AM   #31
Coasttocoast is offline Coasttocoast  United States
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Continued working on the amps today. Switched the door swing and latch from top/bottom to the sides. Finished bolting the second channel heat sinks together and got them mounted to the doors. When I mount the heat sinks to the doors for the last time I will space the heatsinks off the doors about 3/16. This will be the exit path for the air pushed in by the fan. Hopefully this will keep some of the heat from transferring to the chassis and then into the console.

33A1EC58-5278-44FE-8B96-8F657B593D26.jpegg

So far exactly 100 tapped/bolted points.

80625E38-1FD4-4F6A-8649-9D941A101AD4.jpeg

Then, using the cutout pieces from the doors, I made patch panels for the existing holes. Cut the holes for the fans and drilled the hole to bolt the transformer.

15F5CD72-5817-4E90-8375-D8D691198423.jpeg

Now that the heavy duty work is done I can start locating the rest of the power supply.
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Babelfish J as Aleph 2, McIntosh C2300, RAKK DAC Mark IV Extreme, Oppo UDP-203 DVD/CD, Custom SP10 MKII/SME 312s/Koetsu Urushi Black, Magna Mano streamer, Ekta Grande speakers, DIY 13" ScanSpeak sub's w/REL amp boards, Transparent Super cables.
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Old 7th November 2017, 03:47 AM   #32
Coasttocoast is offline Coasttocoast  United States
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A slow work week, so got to spend the day drilling and tapping, yay!

First monoblock complete ready for wire

C4A367C0-0275-47A3-99F8-6C5A186C5D88.jpeg

0A2F7897-4B15-48AD-91E2-A429EA3BB0C0.jpeg

I know, ugly industrial chassis. But after it is slipped into the rear of the console only the edge of the heatsink will be visible. But due to the weight of the transformer and heat sinks this heavy duty enclosure is great. And its already powder coated!
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Babelfish J as Aleph 2, McIntosh C2300, RAKK DAC Mark IV Extreme, Oppo UDP-203 DVD/CD, Custom SP10 MKII/SME 312s/Koetsu Urushi Black, Magna Mano streamer, Ekta Grande speakers, DIY 13" ScanSpeak sub's w/REL amp boards, Transparent Super cables.
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Old 7th November 2017, 11:36 AM   #33
MASantos is offline MASantos  Portugal
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Not ugly at all! It fits the requirements perfectly!

What the PSU in the bottom of the picture for?

Regarding the vibration management for the turntable you can always make a spring loaded sub base or better yet, you could "float" the turntable above the console with a wall mounted shelf.
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Old 7th November 2017, 01:12 PM   #34
Coasttocoast is offline Coasttocoast  United States
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Quote:
Originally Posted by MASantos View Post
Not ugly at all! It fits the requirements perfectly!

What the PSU in the bottom of the picture for?

Regarding the vibration management for the turntable you can always make a spring loaded sub base or better yet, you could "float" the turntable above the console with a wall mounted shelf.
Thanks for your post.

That is a 12v supply to run the fan, the relay’s that drop out the MS35’s on delay after startup, and the “power on” relay. My preamp sends out a 5v signal that I take advantage of to turn the amps on, no independent power switch.

Turntable isolation. So I’m trying out an idea on this console. I don’t think I have read about consoles with mass. And a “typical” turntable has low weight, so springs are a good solution. But my turntable weighs over 65lbs, springs to carry that weight would also transfer vibrations and may even pick up some?

So my first try is overbuild the cabinet section for the drivers, and the rest with mass. Right now just the console bottom weighs about 120 lbs, when complete I estimate the cabinet itself will weigh 180 lbs. then the amps probably weigh close to 100lbs each. So the turntable will be sitting on a mass of over 380lbs. The shelving that will be holding up the turntable inside the cabinets has some sound isolation ideas and the turntable itself has Stillpoint isolation feet.

If that doesn’t work, I designed the amount of shelves and spacing to accommodate a Minus K.
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Babelfish J as Aleph 2, McIntosh C2300, RAKK DAC Mark IV Extreme, Oppo UDP-203 DVD/CD, Custom SP10 MKII/SME 312s/Koetsu Urushi Black, Magna Mano streamer, Ekta Grande speakers, DIY 13" ScanSpeak sub's w/REL amp boards, Transparent Super cables.
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Old 8th November 2017, 09:04 AM   #35
Coasttocoast is offline Coasttocoast  United States
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Twins

2136A2A4-843D-4C2B-BDE0-D1F1483F54D9.jpeg
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Old 8th November 2017, 11:01 AM   #36
MASantos is offline MASantos  Portugal
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All that mass will be affected by the 8inch bass drivers. You might not feel the console vibrating or moving, but there will be micro vibrations moving all around. Since you have many different materials the resonance frequencies should be broad and not affect any particular range. Experimentation will certainly be needed! Fun times ahead!

ps: thanks for the info on the minus k, never heard of them and the products really seem interesting!
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Old 8th November 2017, 03:07 PM   #37
Coasttocoast is offline Coasttocoast  United States
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Quote:
Originally Posted by MASantos View Post
All that mass will be affected by the 8inch bass drivers. You might not feel the console vibrating or moving, but there will be micro vibrations moving all around. Since you have many different materials the resonance frequencies should be broad and not affect any particular range. Experimentation will certainly be needed! Fun times ahead!

ps: thanks for the info on the minus k, never heard of them and the products really seem interesting!
Thanks for commenting. Yes I looking forward to see how its plays out.

Here is a pic of the turntable stand I built for a friend of mine. Made of stainless steel, Mahogany w/Stillpoints for his Artisan Fidelity modified SP10 M3. That turntable plinth was CNCd out of a solid block of aluminum, and weighs over 100 lbs.

Behind the wood panels hides the Minus K. There is a 3/16 gap between the Mahogany top platform and the SS rack, the Mahogany platform is actually sitting on the Minus K. Just the weight of an album closes that gap by 1/16 its so sensitive.

Good way to hide the ugly Minus K!

AFE536CC-8161-4A0C-87B7-8A1212C85C71.jpeg
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Babelfish J as Aleph 2, McIntosh C2300, RAKK DAC Mark IV Extreme, Oppo UDP-203 DVD/CD, Custom SP10 MKII/SME 312s/Koetsu Urushi Black, Magna Mano streamer, Ekta Grande speakers, DIY 13" ScanSpeak sub's w/REL amp boards, Transparent Super cables.
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Old 8th November 2017, 08:21 PM   #38
MASantos is offline MASantos  Portugal
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Awesome build!!!
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Old 11th November 2017, 02:14 AM   #39
Coasttocoast is offline Coasttocoast  United States
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Amp progress has been on delay, waiting for wire order to arrive. Last build was kind of a mish mash of what I had on hand. This time I ordered all sliver plated copper stranded with Teflon insulation. Gauges 22, 20, 16, and 14. The 22 and 20 is coming from an industry guy and made by Beldon. The 16 and 14 is made by Alpha off of eBay. Should be here Monday.

So a couple nights this week I went over to the cabinet shop. Laid up the veneers on 3/4 shop ply one night and this afternoon went over and made the rough cuts for the main outside cabinet and then the doors. This is my first time laying up plywood/veneer, way more work and harder than I thought, and this with all the right tools. The cabinet body is Wenge and when finished should look like this;

1F197733-BD4F-40F2-BA07-D4685B9FB342.jpeg

The 3 doors are Teak, here is a pic of them as they will be on the cabinet. If you look close you can see the joint between them;

59B9F2F0-0B6F-4303-B3DF-D5E6DF424620.jpeg

Tomorrow I hope to make some good progress on assembly.
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Old 11th November 2017, 09:59 AM   #40
Zen Mod is offline Zen Mod  Serbia
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Aloha F5 v3 part 2, console build
damn admirable process , from very start
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