Is 300W RMS enough for a subwoofer?

It suits most single 10- or 12-inch subs rated around 250 to 400W RMS. Larger subs or dual-sub setups will want more power.

What sub impedance can it drive?

Monoblock Class D amps in this class typically run at 2 or 4 ohms, and some are 1-ohm stable. Confirm the rated load in the manual before wiring.

Can I use it to power door speakers?

No. It is a monoblock, single-channel amp built for subwoofers. Door speakers need a multi-channel amp.

Expect the amplifier, mounting hardware and an owner's manual. Power and speaker wiring are usually sold separately.

Car audio amps tend to drop during holiday sales and end-of-season clearances. Track the price history before buying.

Cadence Q3001D 300W RMS Monoblock Class D Car Amplifier

Last price we saw

$279.00at BigJeffOnline, last seen Nov 1

Prices change often: ask the agent below to check today's price at every store.

Prices are checked against each store and labelled with when.

Ask our shopping agent

Our take on the Cadence Q3001D 300W RMS Monoblock Class D Car Amplifier

The Cadence Q3001D is a Class D monoblock car amplifier rated at 300W RMS. Class D design keeps it small and efficient, so it suits subwoofer duty in tight installs. It is a single-channel amp, so it powers one sub or a set of subs wired to a final load the amp can handle. No current price was supplied, so check the latest listing before buying.