How to isolate bookshelf speakers on a bookshelf


Yes, I know that bookshelf speakers should never be placed in a bookshelf. My situation is a bit limiting. I temporarily need to place my Triangle Titus 202 speakers on the top of a 30-inch high wood credenza/bookshelf, which runs the entire length of the wall.

So they are surrounded by air on the top and sides, and are about 8 inches from the wall.

What is the best way to improve the sound? Should I isolate the speakers from the base using bits of Blu-Tack, or use isolation cones?

Since this set-up will only last a year or so, I don't want to invest too much $$$, but do need to improve the sound.

Also, what are the acoustic reasons why placing the speakers on the top of a shelf degrades the sound versus using quality speaker stands? Is it that there is room for the sound waves to move more freely, or that the speaker cabinet needs to be isolate from resonant objects? Or both?

Thanks.
kixo

Showing 1 response by swanny76109

I had a setup at my old house with Von Schweickert VR1s in my built in bookshelves. I used a quasi blu-tack product I got at my hardware store (it is blue and can't remember the name but you find it where they have the picture frame hooks)and it worked great. It comes in flat strips. I just cut 4 squares for each speaker and stuck them on the speaker, then positioned the speaker where I wanted. It tightened and warmed the bass at the same time. No issues of marking speaker or shelf, or paint peelup.