A project log for Muffsy Phono Preamp PP-3

DIY Hifi Phono Stage

skrodahlskrodahl 06/16/2015 at 15:490 Comments

You can pretty much build the Muffsy Phono Preamp into any enclosure you can imagine. This will not cover all possibilities, instead I'll show you how I mounted my phono stage in a B-0905 enclosure that I found on eBay.

The way I found it was simply by searching for "0905 enclosure" on eBay. A couple of weeks later, this showed up:

These are the dimensions of my enclosure:

The nice thing about this enclosure is that it has grooves on each side for mounting PCBs, and both the Muffsy Phono Preamp and the Muffsy Power Supply slides right into them. No need for drilling or special mounting.

Assemble the Parts

I have prepared the phono stage, power supply and the back panel (click on the links for instructions).

Notice that I have the holes in the screw terminals facing inwards, to make sure no cables are touching the cabinet walls:

Insert the PCBs

From here it's just a matter of sliding the PCBs in place:

Fasten the Back Panel

With the PCBs in place, just fasten the back panel:

...and We're Done!

Mount the top piece of the enclosure, and you've got yourself a phono stage: