Hafler 9130 power amp

If you're in Northern Colorado, I would be more than happy to install it for free for you.  Would take about 5-10 minutes or so.

Remove the top plate and you’ll find the switch’s wiring has double-crimp disconnects. Possibly- a capacitor(.01uF), across two of the terminals, to minimize turn-on transients. Before removal, annotate the wiring and switch orientation(ie: LED on the bottom of the rocker). Once you remove the wires, you’ll find expanding retainers on the switch body. Compress those, and the switch should easily push out, through the front plate. Reverse that order, to reassemble.

The expanding retainers are on the side of the switch.  Just push relatively hard and the like rodman stated, it pushes out from the faceplate (push from the inside out).  The new just snaps back into the faceplate from the outside in. 

Here is a picture of the power switch. The retainers are on the top and bottom as the switch sits vertical in the faceplate.

http://livedoor.blogimg.jp/taken81/imgs/6/b/6b8faaba.jpg

http://livedoor.blogimg.jp/taken81/imgs/5/7/57eb6f12.jpg

If I had a professional amp, that I intended to use for home audio, bypassing those would be my first tweak.

+1

Great information rodman!  

You're welcome hooznwif!  Have a great "sounding" weekend.