Is this my imagination?


Hello,

I was happy with sound stage until yesterday. Before SLI-80 and cd player was on the floor. Put SLI-80 integrated amp and CD player on the table yesterday ( about 2 feet table). Seem to me that the sound stage is not the same, seem like not big and solid sound stage like before. Nothing change but the table. Do you think is that my imagination or that table high have something to do with the sound.

Thank you,
eddy1
It is entirely possible that this table could have some affect on your soundstage (and tonal balance as well). It will change, to some small degree, the sound radiating off the back wall.

I have a bigger console between my speakers and  even the distance it is placed from the wall makes a difference.

FWIW though, I agree with highfiman5. You will get a much better sound stage if you pull those speakers out into your room more. Also, play with toe in order to minimize side wall reflections.

This could be related to Speaker Boundary Interference Response (SBIR):

http://www.gikacoustics.com/speaker-boundary-interference-response-sbir/

It's good reading.   I have had this problem as well when a speaker is too close to a side wall or when a speaker is "planning" from the table that it is sitting on.

Room acoustics! It's not so much vibrations, it's reflections. Throw a blanket on top of it all (not permanently)

Best,

E
And no, it is not your imagination, this is why I repeatedly encourage listeners to play with pillows and blankets on the floor, and between the speakers.

It is a MUCH bigger deal than cables.
It's funny how everyone is responding to questions you didn't ask.

It's not strange that putting the amp and cd player on the table has changed the sound. This is why people pay good money for equipment racks. I just use an Ikea console which I spiked to the floor and then isolation platforms or springs directly under the component. You can find all kinds of isolation footers and platforms on the internets, as well as many threads here on the topic.

Here's my view: you need to isolate or couple the table, then you need to isolate the components. You can go DIY like me or find a variety of products to purchase. Remember though, you want to isolate the components from the table, not couple them. So don't get cones or spikes for the components and place them on the table. Spikes or cones are great, but only to couple the component to an isolation platform.

I hope that makes sense. The changes you hear are from vibrations induced in the table, both seismically and airborne, which are seemingly greater than those the amp and cd player were subjected to on the ground.

Apparently they are not the good vibrations