have no problems with amp practicaly just behind 15" woofer in same volume, but it is "encased" in heatsink as all smd are on bottom heatsink side and there is thermal pad for full pcb size except cutout where tpa chip is located, tht parts are dense so small bit of glue holds it all together, and there is no microphonics issue with ceramics. it is bit of nervous breakdown to fit it as there is little room for error and tht parts pins need to be trimmed almost flush , but it is very solid when mounted.
on topic, with that bodge wire to reset from dvdd and without mcu for startup beware of weird problems at turn on/off, even bit of dc is not uncommon, if speakers are expensive please at least use relay on outputs.
also note this, cp from datasheet:
In BTL modes, to accommodate bootstrap charging prior to switching start, asserting the reset input low enables
weak pulldown of the half-bridge outputs.
.... A rising-edge transition on reset input allows the device to resume operation after a fault. To ensure
thermal reliability, the rising edge of reset must occur no sooner than 4 ms after the falling edge of FAULT.
