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Old 6th October 2019, 09:27 AM   #101
Zen Mod is offline Zen Mod  Serbia
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F5 V3
clever move , removing bulb tester

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Old 6th October 2019, 11:08 PM   #102
flamethrower1 is offline flamethrower1  United States
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Had to switch gears as my metric tap set only goes to 4 x.70.
Ordered one from Mcmaster Carr.
Some progress anyway
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Old 9th October 2019, 03:11 AM   #103
flamethrower1 is offline flamethrower1  United States
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Just wondering if anybody could point me in a good DIY design that would pair with this amp?
The cabinets I can handle.
Budget for drivers 500 or so.
Room size is basically 13 ft wide 10 ft deep ( it is actually a loft on the second floor of my house).
Looking for clean, not loud.
Something with a little low end though.
Anyway, just sking.
Thanks. Greg
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Old 9th October 2019, 11:31 PM   #104
flamethrower1 is offline flamethrower1  United States
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Ok, that was a little vague.
I am going to be using this amp in a dedicated 2 channel listening room.
Want to build a folded horn full range design.
I personally like 8 inch drivers verses the smaller drivers.
Tang Band W8-1772 or maybe Scanspeak drivers?
Just wondering if anybody else has gone down this road and has some input?
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Old 10th October 2019, 12:08 AM   #105
dBel84 is offline dBel84  United States
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Have you considered OB design. Something along the lines of PAP audio Trio. I use an 8" Moth driver with a pair of bass drivers.
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Old 10th October 2019, 01:14 AM   #106
flamethrower1 is offline flamethrower1  United States
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Actually open to anything at this point.
Open baffle is a road not ventured for me yet.
Checked out the website as I have not heard of them.
Interesting designs, thanks for the heads up.
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Old 10th October 2019, 04:25 AM   #107
Mrshazbot is offline Mrshazbot  United States
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Check out Mark Audio full rangers and the Pensil plans -

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I have the 10p drivers and they sound really good and they are fairly sensitive. I used one of Planet10’s custom designs because I have a smallish room.

I think they sound great. I’ve built some other DIY speaker kits but they dont sound as nearly as good. Perhaps I just enjoy full rangers more or something.
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Old 13th October 2019, 02:47 AM   #108
flamethrower1 is offline flamethrower1  United States
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Progress so far.
Got one board quasi mounted.
The standoffs were ordered from Amazon as the DIY store had the kit back ordered.
Ordered two taps from MC, had to turn one into a bottoming tap and still had to file some of the threads off to get the shoulders to seat.
I used the shortest stand offs so the screws in the kit were a little long, that is why I used the nylon spacers on top of the boards.
Anyway, before I solder the Mosfets, do I put the Ktherms under them and have them secured?
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Old 13th October 2019, 08:17 AM   #109
tooppy is offline tooppy  France
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Get enough space between the Mosfet and the board otherwise they may get in contact with some other soldering.
The keratherm "only" has been reported creating problem, being too thin the mosfet get in contact with the heatsink. That's why I placed ceramic pads + keratherm, doing so I needed to elevate the PCB of, at least, the thickness of the ceramic pad.
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Last edited by tooppy; 13th October 2019 at 08:21 AM.
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Old 13th October 2019, 12:54 PM   #110
dBel84 is offline dBel84  United States
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Keratherm alone is the generally recommended path , only problem when using keratherm is not to be too heavy handed and tear through the pad making contact with the heatsink below. Be sure to gently burr out the rim of the hole that you drill and tap. I use very fine sand paper to clean up the spot first too ( just in case there are small somethings sticking up )

I would recommend a fitting them to the heatsinks with keratherm in place prior to soldering - making sure your alignment is good before soldering.

with all that said - my M2X gave me major issues while sissy and aleph did not (from a heatsink shorting perspective. )
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