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Cadence Beast Series BT12D4 12" 800W RMS Dual 4-Ohm Subwoofer

Cadence Beast Series BT12D4 12" 800W RMS Dual 4-Ohm Subwoofer

Last price we saw

$299.00at BigJeffOnline, last seen Nov 3

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Our take on the Cadence Beast Series BT12D4 12" 800W RMS Dual 4-Ohm Subwoofer

The Cadence Beast BT12D4 is a 12-inch car subwoofer with dual 4-ohm voice coils, rated at 800W RMS and 1600W peak. The dual 4-ohm coils let you wire to a 2-ohm or 8-ohm final load, which suits mono amps that make their power at 2 ohms. It is sold as a single driver, and the best new price is $299 at BigJeffOnline as of November 3, 2026, with only one store listing it new.

Best forBass-heavy daily driversSpl or competition builds on a budgetOwners with a 2-ohm-stable mono ampDIY box builders who want a single 12
Pros
  • Dual 4-ohm coils wire to 2 ohms or 8 ohms
  • 800W RMS is real headroom for a single 12
  • 1600W peak rating leaves room for dynamic peaks
  • Standard 12-inch size fits common prefab and custom boxes
Cons
  • Only one store lists it new, so price shopping is limited
  • Needs a stout amp and wiring to use 800W RMS
  • No enclosure included
  • Heavy power demands can expose weak electrical systems

Cadence Beast Series BT12D4 12" 800W RMS Dual 4-Ohm Subwoofer prices at every store

  • BigJeffOnlineCheck price at BigJeffOnline

Cadence Beast Series BT12D4 12" 800W RMS Dual 4-Ohm Subwoofer price history

Lowest price we've seen: $299.00 on Nov 3 at BigJeffOnline. Tracked across 1 store since Nov 3.

Specifications

CASE QUANTITY
2
Application Type
Car
Power Handling
800W RMS / 1600W

Questions and answers

Is the Cadence Beast BT12D4 worth $299?
At $299 it is priced like a mid-tier 800W 12. Whether it is worth it depends on your amp: if you already run a 2-ohm-stable mono amp, it is a reasonable single-sub option. With only one new listing, there is little price competition to push it lower.
What amp should I pair with it?
Look for a mono amp rated around 800W RMS at 2 ohms, since the dual 4-ohm coils wire in parallel to 2 ohms. An amp rated at 800W at 1 ohm will be underused unless you buy two subs.
Can I wire it to 1 ohm?
No. Two 4-ohm coils give either 2 ohms in parallel or 8 ohms in series. For a 1-ohm load you would need two of these subs, each wired to 2 ohms, then paralleled.
What size box does it need?
It is a standard 12-inch driver, so it fits common 12-inch cutouts. Cadence publishes recommended sealed and ported volumes for the Beast line; match the box to your tuning goal rather than guessing.
What comes in the box?
The listing is for the subwoofer driver itself. Expect the woofer and mounting hardware; enclosures, grilles and wiring are typically sold separately.
When is it cheapest?
With one new listing at $299 as of November 3, 2026, there is no competing new price to compare. Watch for seasonal car-audio sales at that store rather than expecting a broad price war.

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