new line-preamp

[kuroguy]

started work on a new line-preamp. here's the front and rear panels that I made from 2" aluminum bar stock. the front panel is also machined on the back to add a recess for the LCD and indexing holes for the rotary switch.

 

[ammel68]

Very nice work on those panels!

Were all the holes cut by a CNC machine?

I see what looks like a box of Mouser goodies in the background. Did the rear panel RCA's come from them?

 

[kuroguy]

the only thing I had to do manually is to polish the panels. My machine did all the cutting. The rear panel RCAs were from my parts box. I got them on ebay about 15 years ago. the front panel RCAs are new from mouser.

 

[kuroguy]

here it is sitting on top of the matching power amp I made a few months ago. After this component comes a media player based on the beaglebone black.

 

[kuroguy]

almost done wiring it.

 

[Zero D]

Hi, neat CNC job 🙂 That transformer is a meaty looking beast !

I can't tell if the phono sockets are isolated from the case ? If they are not, you "could" get less favourable results due to ground loop issues.

Regards

 

[maxw]

Nice. What linestage are you using in there?

 

[kuroguy]

Analog inputs are passive. This has 3 analog, 3 coax digital, and 2 fiber digital inputs on the rear. The front has one of each plus 1/8" stereo phone input. Just need to make the top and program the microcontroller so it displays the name of the selected input, but at this point, it works wonderfully and i'm pretty happy with it.

 

[kuroguy]

Here's the inside. It's pretty tight in this 10" wide x 8" deep x 2" tall case.

 

[kuroguy]

everything is working. just need to finish the programming.

 

[kuroguy]

This one's done. Now on to the cd player for this diy component stereo system.

 

[Jsixis]

really nice I want one but couldn't afford it