Streamliner rack mount question

I've done a number of "rack mounts" by using a rack shelf and the feet mounting holes on the bottom of the gear.
Be sure the screws aren't too long and protrude up into a circuit board or something else inside the amp.
If you need shorter screws you should be able to find them at most hardware stores.
Take one of the screws with you.
Be sure, you get metric or "American" screws the originals.
Sometimes mixing these might seem to work but could damage threads or not fit tightly.

 

That works too. Especially good idea if there are any bottom vents.

 

Be sure the screws are not too long, very important.

 

It's fine as long as the screws are not too long. IIRC, there are PCB clearance issues to be aware of on the preamp board and maybe the back of the power module.