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BrianDonegan 1st June 2006 01:24 AM

My Integrated X-Bosoz and A30
So, I have been building an A30 for about a year. A little bit here, and a little bit there. I also have an X-Bosoz built, but not in a case. I decided a few weeks ago to get these things going to power my Klipsche's. About time I think.

So, I made up a frame out of some 3/8" aluminum bar stock (two 12x12.75 rectangles) and will bolt the heatsinks to it. Front and rear panels will be .090 aluminum, but the front piece will sit inside a 1.25" think piece of walnut. Top will be again, aluminum sheet with walnut on top of it. Large rectangular vent holes will be covered inside with heavy brass screen. Bottom will be brass screen. The circuit boards will ride on cross members running across the frame, and the various trafos (2 - 400VA 16Vx2 for A30) will ride on vertical members behind the front panel.

Anyway, I was test fitting the A30 bits, looked over at the x-bosoz, and bing. No seperate case for the x-bosoz. Also included will be a balanced darwin source selector and a joshua tree balanced attenuator.

I won't need the dual outs of the darwin, so just two knobs on the walnut front, volume and source. Will have 6 sets of XLR inputs. Will also use MaxHawk's soft power switch (red led).

Should be done in a few weeks!! Finally ;)

some pics....

hifimaker 1st June 2006 03:41 AM

Hi Brian,

Very cool indeed! I'm surprised tha more DIYer's have not build an integrated unit.

Besure to post the final assembly pictures.

I like the big copper spreaders. I imagine it took a lot of heatsink compound to cover that surface area.


maxw 1st June 2006 04:14 AM

I love solid metal cases! keep the pics coming ;)

BrianDonegan 1st June 2006 11:07 AM

I shoudl point out that the only non-wood working tool I have used so far is a hacksaw to rough cut the copper, as it doesn;t play too well with the tablesaw.

The aluminum frame was cut on a chopsaw and the panels will be cut on my tablesaw. I think if people knew how easy it was, more would be making metal cases.

EDIT: well, i did use a milling machine to face mill the copper, but didn;t really have to ;)

BrianDonegan 1st June 2006 01:44 PM

...also, forgot to mention (beer) that I am using Peter Daniel's A30 boards and BrianGT's PowerSupply board. Might add a second PS, even though the one I have uses 6 - 22,000uF caps ;)

Zen Mod 1st June 2006 02:10 PM


steenoe 1st June 2006 03:19 PM

Looks good Brian, keep it going while the spirit is there;)
Great idea going integrated, never crossed my mind. Always had my hands full keeping the poweramp cool enough;)


BrianDonegan 1st June 2006 06:00 PM


Thanks! :)

Zen Mod 1st June 2006 09:22 PM


Originally posted by BrianDonegan

Thanks! :)

you are more than welcome!

angchuck 1st June 2006 09:34 PM

Ahhhh...... reminds me of a dream i had last night of a X-bosoz and Sussy!

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