As An Experiment I Stuck A Few Things Under My Pre-Amp And Am Now On A Quest


My system is built out, got the pieces I want in place, and struggled a bit with how it sounds. With certain recordings it was sublime and with others it could be a bit sterile or mechanical sounding. These are all solid state components in a Salamander cabinet, and up to this point I have never been a fan of isolation devices with SS gear. Now with tube components I did use spike type devices under amps and preamps, so I have had a bit of experience.

Last night I rounded up a few wayward isolation devices I had from previous systems and thought I would experiment a bit. The pre-amp contains the DAC also, so I thought I would start here. Put in some Wagner type pads, and got a different sound with some improved focus but the bass was lean and a bit odd. But things changed. I tried some magnetic pods I had, no change with them.

Then as a whim I cut two sections of foam pool noodle I had laying around and put it under the front and back of the preamp. I oriented them lengthwise. Something fantastic happened here! I got spooky precise focus to instruments, the bass response became impactful, the sound is more relaxed...perhaps a bit too smooth but I will take this over that mechanical presentation any day. This is sounding very nice.

So, after dinner I decide to cut a third one and perhaps the bass gets better. I put it in and all the gains are gone, it sounds worse than the first set of Wagner pads I put in. The bass literally vanishes and the soundstage collapses. Pull it out and things are good again. I listen to disc after disc last night and am pleased with the sound. I am spinning vinyl this morning and still feel the same way.

So now I have a plan of action. On one hand I am content to leave the noodles in place and roll with that for awhile. It would be nice to have a permanent solution though. It seems like I am looking for a compliant solution. I remember Brightstar used to build a little shelf that housed a bike inner tube in it, and I think Townshend Audio also had a bladder type platform.

It would be interesting to know what products folks have used that functioned in a similar manner.

Thanks for sharing any thoughts or experiences.

neonknight

I use IsoAcoustics for speakers and Symposium bases and roller-blocks for everything else. Details in my profile. 

Sorbathane is no bueno. 

(I had no footfall issues to solve; goals were isolation and vibration dissipation)

Sorbothane or any singular material is "no so  bueno" by itself alone  ...

Only a sandwich mix to assure some coupling/decoupling set was efficient for me ...

For example feet of copper or any material is not good but with a sandwich plates including sorbothane plate , and granite, bamboo and cork and quartz  over them they work ...

The secret of the "sauce" is many ingredients together ...

Springs for example alone are not efficient enough the secret here is tuning the load of the compressive force under and above the speakers with springs compressed differently above and under with distinct damping load...

Sorbathane is no bueno.

check out Mapleshade, maple boards and brass cones...I pretty much used them under everything, and sometimes on top too...

I use platforms and footers under everything. Sand platforms, mdf/foam platforms, IsoAcoustics feet,Primacoustic platforms under speakers and subs.Sorbathane never worked well for me.When I had mono block amps on the floor they rested on  slices of gray foam pipe insulation, sort of like pool noodles.

Isoacoustics Oreas work just fine for me.
Made a noticeable difference. 

I guess that's why lots of recording studios use them. There's also Audite Acoustics which offer suspension platforms and constrained layer damping at reasonable prices compared to Townshend. I haven't tried them so I can't vouch for them, but they may be worth a look.

All the best,
Nonoise