Гарантирам ти, че ще се чува долу! Не ударите по падовете, ами тропането от педалите. Самите вибрации, които се предават механично, не звук, който се предава по въздуха.
Над мен живеят някакви комшии, които имат 4-5 годишни внученца. Като дойдат на гости се чува все едно пет велосираптъра гонят стадо носорози. Някой ако свири на барабани директно на пода няма как да е по-тихо.
Една тема за изработка на дръм платформа:
https://digistar.cl/Forum/viewtopic.php?f=6&t=9
Още малко инфо:
"I started with the tennis ball thing like you did and found it very poor in isolation. It did almost nothing. Then I got rid of that and did a riser with 5" of high-density foam and a layer of 1/2" OSB, it was way better, but nowhere near good enough. Then another level of Dacron pillows on top of that and two layers of OSB on top, better. Then 1 lb mass loaded vinal, 2" of terry cloth towels, then another level of OSB, four levels in total. That actually works for my drum riser inside a booth I made. It takes 11" of height of various sound absorption materials to actually absorb the low frequency impacts of the foot pedals.
The situation is ridiculous, but if I want to use an electronic drum set in a Condo environment, that's what it took. 1/2" OSB has a STC rating of 26, similar to drywall, due to the high glue ratio - heavy weight - of the product. Multi levels of that, with absorption materials between is the ticket. It appears as the impulses penetrate each level of OSB, a percentage rebound into the absorption materials between each level till it gets to the 5" foam spacer at the lowest level, where the remaining impulse is low enough not to penetrate at any significant DB level."