What do the power ratings actually mean?

The 8400W MAX is a peak marketing figure. Real continuous output is 4 x 700W RMS at 4 ohms, 4 x 1000W RMS at 2 ohms, or 2 x 1700W bridged at 4 ohms.

Will it work with my factory radio?

Yes. It has high-level 2–4 channel inputs, so it can take speaker-level signal from a stock head unit without a separate line-out converter.

Yes. Bridged at 4 ohms it gives two channels of 1700W RMS, and the low-pass filter lets you limit those channels to bass.

It is full range. The crossover can be set to full range, high-pass or low-pass per the controls, so it can drive door speakers and subs.

You need a power and ground wiring kit sized for the current draw, RCA cables or speaker-level taps, and a suitable mounting location with airflow.

At Best Buy, for $157.39, as of our latest check.

Rated 4.8 out of 5 from 4 ratings.

16 stores we checked sell it, including Elite Auto Gear, Factory Direct Car Audio, DB's Car Audio, Best Buy, Crutchfield.

$157.39at Best BuyChecked 1 h ago

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

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