Can I put receiver and CD player on top of my sub?

Chad...okay, your guilt trip worked...you are right that my response was not "helpful" and that I should just stick to answering the question. I apologize to Eighthcircuit...But my initial impression was that this question sounded like a tongue-in-cheek question...(like whether I should rub vaseline on the outer jacket of interconnects to keep moisture from penetrating), but now that I re-read it, I realize that Eighthcircuit was asking a sincere question, and deserves a meaningful response.

So, my opinion is in line with all others...that putting your amp and especially your source on top of a sub is not a good idea, because the vibrations, while not harming your equipment, will make your system sound like a common car stereo.

The above statements are wrong. If your components fit well, why not. After all it is wasted space on top of that subwoofer. Just one more thing, while playing these components leave the subwoofer off.

Chadnliz says: I think some here are not being helpful, just answer this guys question.

Like you did? :-)

>>Just one more thing, while playing these components leave the subwoofer off.<<

Then why have the subwoofer? Enlighten me.

If you really want to set the receiver on top of the sub, then do it. I suggest that you try some simple (and cheap) isolation tricks to keep the vibrations from the sub from rattling your receiver.

First, try filling 4 zip-lock sandwich bags half full with sandbox sand. Set them on the sub and then set the receiver's feet right in the middle of the bags.
Next, get a larger zip-lock bag and fill it half full of sand and set it on top of the receiver. Tap on the top cover with your finger to see if makes anything but a dull thunk when struck. You might need more than one bag.

If you want better and are handy with a power tools, then buy some 3/4" MDF and make a 3 inch deep box about 1 inch larger on all sides than footprint of the receiver (if the receiver is 18" x 15" then make it 20" x 17"). Seal the four sides and corners with caulk so that the sand doesn't leak out. Fill the box with sand 2-1/4" deep. Make the top so that it has about an 1/8" gap on all sides and it "floats" on the sand. Use 4 large sorbothane feet on the bottom of the box.
Again, use the large zip-lock sand bag on the top of the receiver.

If you want better yet (but it isn't cheap), then invest in the Brightstar Air Mass that is the right size for your receiver.