Gainclone building contest details (from BrianGT group order)

Status
Not open for further replies.
Jump to Latest
#182
Ropie said:
Lovely case work, CJD 😎
Click to expand...

Thanks! It was a lot of fun, believe it or not. And, or course, if I did it again (er... when) I would do this and that differently. 😀 I really would have liked to do handcut dovetails since you can do some things with that you can't otherwise (including some through-face details with otherwise half-blind joints). Plenty of time for that. :smash: :smash: :smash: More practice first. And a better jig for any more machine-assisted dovetails in the future!

C
 
#183
Re: My gainclone monoblocks are finished!

MIB said:
Finally I finished mine......

An externally hosted image should be here but it was not working when we last tested it.

This pic shows the initial testing (in the kitchen 😀) using an iPod as source. I built the clone as power-amp without volume pot, so I took the only device with volume control I had :clown: .

Some pictures of the two together and the internals of the boxes:

An externally hosted image should be here but it was not working when we last tested it.


An externally hosted image should be here but it was not working when we last tested it.


An externally hosted image should be here but it was not working when we last tested it.


An externally hosted image should be here but it was not working when we last tested it.


An externally hosted image should be here but it was not working when we last tested it.


As to sound, I am pretty impressed up to now. The sound is detailled, bass is deep, and the clones do a fine job driving my 91 db efficient speakers. Loud enough for me!!!

The DC offset was nice allready from the start (11 mV and 20 mV resp.), but for safety I added the zobel network, it might go lateron.

On the downside: the amps are very sensitive towards mains peaks/dips, so that even switching of a light causes a tick in the sound. The spikes caused by my fridge are simply horrible :bigeyes:, time for some thorough mains conditioning overhere. Connected to my home cinema receiver as pre-amp, I also hear a slight humming through the speakers, audible only when the volume is low. When volume is increased, hum stays constantly on a low level. Any idea what this could be? Grounding? I will check for ground loops etc.....

Rob
Click to expand...


MIB those cases are really nice i like them a lot.. Good job. OH LOOK IPOD NICE!!!
 
#184

Attachments

  • amp.jpg
    amp.jpg
    67 KB · Views: 452
#185
I have just completed a integrated GainClone BrianGT kit using the V2 boards. (Thanks Peter)

I had some 3/8" aluminum plate I had cut up from work (it was free) so I assembled and added 3/4" solid oak front & side pieces.

I used a series resistor (MK132) with a shunted Noble Pot and used a single pair of inputs.

There is minimal DC offset and no audible hum. There is no series cap on the input and sounds more natural than my heavily moddified Linn LK-1 & LK-260 preamp/power amp combination.

I am posting some attachments in the following posts.

Thanks,
 

Attachments

  • ampangle.jpg
    ampangle.jpg
    52.5 KB · Views: 516
#195
Sheldon,

Loooks fantastic. Shows the potential and versitility of that chassis. Looks like a "lever action" 😉volume control. Quite clever.....one could link 2 mono volume controls in the same fashion.

This also shows that there is room for some mods in those cases.
looks like you are running out of room though!


Karma:

I like the "machine aesthetic" of yours. I think my monoblocks will look similar . Thanks for some ideas...

MArk
 
Status
Not open for further replies.
Top Bottom