Unless you have shielded it from acoustic energy that is created as you play, it is not fully isolated, not matter the 'bricks and brac'. Moving it to another isolated room is generally the best way.
is turntable isolation required?
I have read opinions saying that solid plinth turntables absolutely require some kind of isolation platform to sound their best. Would you say this is correct?
my Thorens TD-850 weighs 21 kg, very solid plinth, sits on spiked feet that have a small, built-in layer of what appears to be viscoelastic material (presumably providing a very small amount of isolation), on a Billy Bags stand. Solid floor. I had it on a Bright Star (sandbox-type) platform, but couldn't really hear much difference, if any, with or without it.
If I'm likely to hear a real benefit an HRS S-1 platform looks appealing. Other recommendations welcome.
that it be cost-effective might be too much to ask, in this hobby.
my Thorens TD-850 weighs 21 kg, very solid plinth, sits on spiked feet that have a small, built-in layer of what appears to be viscoelastic material (presumably providing a very small amount of isolation), on a Billy Bags stand. Solid floor. I had it on a Bright Star (sandbox-type) platform, but couldn't really hear much difference, if any, with or without it.
If I'm likely to hear a real benefit an HRS S-1 platform looks appealing. Other recommendations welcome.
that it be cost-effective might be too much to ask, in this hobby.