IF you do try one, make sure it's their EVO line.
From the SD distributor i have talked with (we talk with many companies from Brazil), warranty status for Soundigital in the US seems fair-
They will/should warranty unconditionally the First time if something were to fail.
IF sent in a second time within warranty period and the reason is/could have been caused from any type of abuse outside of manufacture defect, customer pays for repair.
Pricing on SD seems to be fair in the US in line with it's competition's pricing.
Follow the same guidelines as Taramp's.
SD actually publicly lists this as well.
Stay below 14.5v, especially if clipping at that voltage.
Do not wire to 0.5ohm on 1ohm version, etc..
Due to light weight, ensure mounting location is secured and free of cyclic vibration.