Electrical says alot, when rusty had the 7 kinetik 16v he was seeing roughly 6500watts per 9.0, once he switched to the 12 Xs xp1000s he was then seeing close to 11k per 9.0.
Nothing I guess, if that's your thing, personally I've never took my 2 10.0s below 11.8, and that lower then I'd like. Only because setting the amp while idle at 14.8-14.9, dropping down in the 11 volt range will have some distortion present.
.....sooooo how do they compare at lower voltages?
Why would you wanna run an amplifier like this at low voltage? Although its been done, ea time it just shortens the life just a little by more
^^^^this is the reason you need to do simple math and go by what the manufacturer tells you it will handle. Every rating is listed on the web site. 2 lvl 3s, 900x2. = 1800. Tht what you should use a few hundred watts +/- is ok, but NOT 2,000. If you wanna gamble and willing to except the fact you void your warranty by using well beyond the rating that's on you.
Pull the batt, fully charger it then let it it over nite and check voltage. If its low like you explain then its bad. Running a battery in a car that have a low charge is useless, as the vehicle isn't a charger, and wont put the deep charge on a battery