Vibration Management

[TonyW]

One last video showing music not affecting the amps. One thing to note, the floor space between the speakers is pretty quiet so I had to crank up the sensitivity of the accelerometer.

IMG_3984.MOV

drive.google.com

Amp iso music.MOV

drive.google.com

2nd video has more bass.

 

[Holmz]

One last video showing music not affecting the amps. One thing to note, the floor space between the speakers is pretty quiet so I had to crank up the sensitivity of the accelerometer.

IMG_3984.MOV

drive.google.com

Amp iso music.MOV

drive.google.com

2nd video has more bass.

Guten Tag Herr Kommissar,

I see you have 100 Hz sample rate, which has Nyquist at 50 Hz.
And a few posts up you mention spring rates and the natural, or resonant, frequency.
It may be interesting to use higher sampling rates, and a stiffer spring should transfer more of the high frequency vibration up into the amps.
I suspect it is not much, and the amps are heavy, so it it mostly academic… but it would be somewhat of a reason to go with a softer spring.
Probably resonant frequency under the audible range, (<15 Hz) would be fine, and I doubt that the microphonics are really a problem when the frequency is low, but… that is a guess.

 

[Opabin]

I have a couple of new videos. First one shows my amp isolation- as before, with vibration data...
The other video shows my cable risers.

Amp isolation.MOV

drive.google.com

Cable isolation.MOV

drive.google.com

Neat and effective-looking cable isolator design. Could you share a link for the ceramic isolators?
I’ve enjoyed your posts in this thread.

 

[TonyW]

Neat and effective-looking cable isolator design. Could you share a link for the ceramic isolators?
I’ve enjoyed your posts in this thread.

Thank you.
I got these insulators from Tractor Supply. I like them because they cradle the cables in their radius.

https://www.tractorsupply.com/tsc/product/american-farmworks-10-pack-large-corner-post-ceramic-insulators

Maybe this link works.