Is the 2550-watt rating RMS or peak?

It is a max (peak) rating. Expect lower continuous output, especially at 1 ohm where the amp works hardest.

Can I run it at 1 ohm daily?

The amp is rated stable at 1 ohm, but that draws heavy current. You need upgraded wiring and a charging system that can keep up.

Yes. It has speaker-level high-level inputs, so it can take signal from a stock head unit without a separate line-out converter.

Yes, a wired remote bass level control is included.

It is a single-channel monoblock, so it drives one sub or several wired together to a 1- or 2-ohm load.

The amp has its own crossover and bass-boost controls, so a separate processor is optional for basic setups.

At Audiosavings, for $149.95, 21% under what the other stores charge, as of our latest check.

16 stores we checked sell it, including Audiosavings, Cybervalue, Audio Watt Store, Cyberoverstockk, Amazon.

$149.95at AudiosavingsChecked 9 h ago

21% under what the other stores charge

Compared across 16 stores. Prices are checked against each store and labelled with when.

It checks today's price at every store, compares the alternatives and answers in about a minute.