Which hits harder, two 12s or one?

The Rockville's two 12s have more cone area and will move more air if fed properly. The catch is its 500W amp, so the CT Sounds single 12 with a matched 700W amp often sounds cleaner and nearly as loud.

Which is better for a first bass setup?

The CT Sounds. It arrives pre-wired at 1 ohm with a matched amp, so there is little to tune. The Rockville needs gain set carefully because the amp is smaller than the subs.

The CT Sounds has the sturdier enclosure and a properly sized amp, and its larger review base shows fewer failures. The Rockville has one reported basket failure, though that is a single case.

Is the Rockville worth stepping up to for the extra sub?

Only if you plan to add a stronger amp. As shipped, the second sub is underfed, so the extra cone area does not translate into much more output.

Do both include a wiring kit?

Yes. Both include a 4-gauge amplifier wiring kit, and the Rockville adds a bass remote and a birth sheet with tested power.

Will either fit a small car?

The CT Sounds box is 20" wide with 13.05" mounting depth, which fits most trunks and hatchbacks. The Rockville's dual-12 enclosure is much larger, so measure your space first.

Rockville DK512 Dual 12" Sub and Amp Package vs CT Sounds TROPO-1X12D2 Bass Package

The CT Sounds package is the better-engineered buy. Its 700W RMS amp matches the 650W RMS sub, the 1.25" front baffle and kerf port are stiffer than the Rockville's 3/4" MDF, and 223 ratings at 4.9 back it up. The Rockville DK512 pairs two 12s with a 500W amp that is underpowered for 700W subs, and one owner reported a basket failure after about a year. Pick Rockville only if you want dual-sub output and a bass remote in one box.

Choose the Rockville DK512 if you want two 12s and maximum cone area from a single loaded enclosure, and you accept adding a stronger amp later.
Choose the CT Sounds TROPO-1X12D2 if you want a matched amp, sub and box that drops in and plays correctly from day one.

Prices

Rockville DK512 Dual 12" Sub and Amp Package: $349.95 at Rockville (checked today)
CT Sounds TROPO-1X12D2 Bass Package: $399.97 at CT SOUNDS (checked today)
Difference: the Rockville DK512 Dual 12" Sub and Amp Package is $50.02 cheaper than the CT Sounds TROPO-1X12D2 Bass Package today

	Rockville DK512 Dual 12" Sub and Amp Package	CT Sounds TROPO-1X12D2 Bass Package
Subwoofer count	Two 12" subs in one enclosure	One 12" sub
Amp-to-sub power match	500W RMS amp against 700W RMS subs	700W RMS amp against 650W RMS sub
Enclosure build	3/4" MDF, bonded, stapled and braced	MDF with a 1.25" front baffle and kerf port
Final impedance	2 ohm	1 ohm
Tuning frequency	35 Hz	34 Hz
Bass remote	Included	Not listed
Owner feedback	4.7 from 15 ratings; one basket failure reported	4.9 from 223 ratings; complaints limited to install effort
Install complexity	Full kit, but you must set gain to protect the subs	Pre-wired plug-and-play at 1 ohm

Spec	Rockville DK512 Dual 12" Sub and Amp Package	CT Sounds TROPO-1X12D2 Bass Package
Subwoofer size	12"	12"
RMS power	700W RMS	650 Watts
Peak power	2800W	—
Enclosure material	MDF	—
Wiring kit gauge	4-gauge	—
Tuning frequency	35Hz	—
Amplifier power	2000W	—
Amplifier class	Class D	—
Amplifier RMS at 2-Ohm	500W RMS at 2-Ohm	—
Enclosure thickness	3/4" MDF	—
Voice coil	2" 4-layer aluminum	—
Power cable length	17'	—

Spec	Rockville DK512 Dual 12" Sub and Amp Package	CT Sounds TROPO-1X12D2 Bass Package
color	Black	—
size	12"	—
Number of subwoofers	—	1
Max power	—	1300 Watts
Amplifier RMS power	—	700 Watts RMS at 1 Ohm
Final impedance	—	1 Ohm
Included amplifier	—	CT-700-1D
Included wiring kit	—	AMPKIT-4GA-PRO
Box style	—	Kerf Port
Front baffle thickness

Rockville DK512 Dual 12" Sub and Amp Package vs CT Sounds TROPO-1X12D2 Bass Package

Prices

Rockville DK512 Dual 12" Sub and Amp Package vs CT Sounds TROPO-1X12D2 Bass Package

Prices

CT Sounds TROPO-1X12D2 Bass Package

What separates them

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