As a diy musician who plays trash blues i could give a rat s heiney about the fine minutiae of frequencies and tube bias.
Diy guitar amp floor isolation.
I m using a 26 inch kick drum case and some car insulation to build a isolation cabinet.
A couple of concrete paving slabs with some layers of closed cell foam rubber like a camping bedroll works well for large vibrating transformers or motors and stuff.
Such stands will typically also allow you to adjust the amp height and angle great for gigging too.
The layering technique that s described definitely works but i d replace the acoustic foam with some rockwool or owens corning 703.
Speaker isolation box for marshall jcm 2000 tsl cab and shure sm57 with mini mic stand.
What about a combination eg an amp frame where floor contact is minimal and where eg a 1 2 thick rubber mat or even a piece of rubber backed carpet underneath the feet will absorb any remaining vibration.
Bill i understand about the 4x12 s but it s is used as 2 2x12 s one side for guitar the other for a guitar synth with a separate amp not used at the same time of course either way the other guitar player uses a 2x12 avatar and getting the issue also of course it would be much easier to get his off the ground.
Beware this is the opposite of almost every other guitar world guitar amp review.
The actual tubes and or amp head need air or you could be dealing with an actual fire.
Thanks for the answers.
A few things to keep in mind when building your guitar iso cab.
You should probably use some heavier wooden construction around it a.
Mike ralph s diy speaker cabinet isolation box fits a 2x12 cab.
Mike ralph wrote the following.
What you really need is an isolation box to keep the level from waking up the baby next door.
Please don t put your pristine matchless chieftan combo in a completely enclosed box.
Here s a pretty good video on how to make a guitar amp isolation box with some caveats.
The method outlined here works for separate amp head isolation cabinets.