entertainment · 60W typical
Running a powered subwoofer costs about $0.89/month.
That's the typical powered subwoofer at 60W, run 3 hours a day at the US-average rate of 16.5¢/kWh. Change any of those and the number moves — use the calculator below to see yours.
Estimated cost
Full-power draw for 3 hours at 16.5¢/kWh.
How you use it
Cost shifts with how long it's on.
The same powered subwoofer can cost very different amounts depending on usage patterns. Three common scenarios, at the US-average rate.
movie night
$0.89
per month
active low-frequency output during movies
standby
$6.24
per month
auto-on standby is 3-8W
Where you live
$1.61 spread between the cheapest and priciest states.
Same appliance, same hours of use, different zip code — the monthly cost varies this much.
| State | Rate | Monthly | Yearly |
|---|---|---|---|
| Hawaii | 41.2¢ | $2.22 | $27.07 |
| California | 31.4¢ | $1.70 | $20.63 |
| Massachusetts | 30.8¢ | $1.66 | $20.24 |
| Connecticut | 28.7¢ | $1.55 | $18.86 |
| Rhode Island | 27.9¢ | $1.51 | $18.33 |
| New Hampshire | 24.6¢ | $1.33 | $16.16 |
| Alaska | 24.3¢ | $1.31 | $15.97 |
| New York | 22.3¢ | $1.20 | $14.65 |
| Maine | 22.1¢ | $1.19 | $14.52 |
| Vermont | 21.5¢ | $1.16 | $14.13 |
| Michigan | 19.3¢ | $1.04 | $12.68 |
| New Jersey | 19.1¢ | $1.03 | $12.55 |
| Maryland | 18.4¢ | $0.99 | $12.09 |
| Pennsylvania | 18.1¢ | $0.98 | $11.89 |
| District of Columbia | 17.8¢ | $0.96 | $11.69 |
| Wisconsin | 17.4¢ | $0.94 | $11.43 |
| Delaware | 17.2¢ | $0.93 | $11.30 |
| Illinois | 16.9¢ | $0.91 | $11.10 |
| Ohio | 16.6¢ | $0.90 | $10.91 |
| Nevada | 16.3¢ | $0.88 | $10.71 |
| Indiana | 15.8¢ | $0.85 | $10.38 |
| Virginia | 15.7¢ | $0.85 | $10.31 |
| Minnesota | 15.6¢ | $0.84 | $10.25 |
| Colorado | 15.4¢ | $0.83 | $10.12 |
| Alabama | 15.2¢ | $0.82 | $9.99 |
| West Virginia | 15.2¢ | $0.82 | $9.99 |
| Florida | 15.1¢ | $0.82 | $9.92 |
| New Mexico | 14.8¢ | $0.80 | $9.72 |
| Texas | 14.8¢ | $0.80 | $9.72 |
| Arizona | 14.7¢ | $0.79 | $9.66 |
| South Carolina | 14.7¢ | $0.79 | $9.66 |
| Kansas | 14.6¢ | $0.79 | $9.59 |
| Georgia | 14.2¢ | $0.77 | $9.33 |
| Iowa | 14.1¢ | $0.76 | $9.26 |
| North Carolina | 13.9¢ | $0.75 | $9.13 |
| Missouri | 13.6¢ | $0.73 | $8.94 |
| Oregon | 13.4¢ | $0.72 | $8.80 |
| Tennessee | 13.3¢ | $0.72 | $8.74 |
| Kentucky | 13.2¢ | $0.71 | $8.67 |
| Mississippi | 13.1¢ | $0.71 | $8.61 |
| Oklahoma | 13.1¢ | $0.71 | $8.61 |
| South Dakota | 12.7¢ | $0.69 | $8.34 |
| Montana | 12.4¢ | $0.67 | $8.15 |
| Nebraska | 12.2¢ | $0.66 | $8.02 |
| Arkansas | 12.1¢ | $0.65 | $7.95 |
| Washington | 12.1¢ | $0.65 | $7.95 |
| Louisiana | 11.9¢ | $0.64 | $7.82 |
| Wyoming | 11.6¢ | $0.63 | $7.62 |
| North Dakota | 11.5¢ | $0.62 | $7.56 |
| Utah | 11.4¢ | $0.62 | $7.49 |
| Idaho | 11.3¢ | $0.61 | $7.42 |
Efficient vs. inefficient
A $48.78/year difference across the wattage range.
Swapping a high-draw model for an efficient one pays for itself. Here's what that looks like annually at typical usage.
Most efficient
30W
$0.45 per month
$5.42 per year
Typical
60W
$0.89 per month
$10.84 per year
High draw
300W
$4.46 per month
$54.20 per year
When it hits hardest
winter peak
Heavier winter movie-watching.
Ways to cut the cost
- 1
Use smart plug to fully kill 'auto-standby' draw
Saves 25-60 kWh/year
- 2
Enable 'auto-off after X min' if available
Cuts phantom active mode
- 3
Lower volume and use bass management at receiver
Sub runs cooler and more efficient
Real-world wattages
Pulled from actual spec sheets.
| Brand | Model | Watts |
|---|---|---|
| Klipsch | R-100SW | 150W |
| SVS | PB-1000 Pro | 325W |
| Polk Audio | PSW10 | 50W |
Picks that actually move the needle
Three products worth comparing if you're thinking about upgrading or supplementing what you have.
Some links below are affiliate links. If you buy, we may earn a small commission — it never changes the price you pay, and we only recommend picks we would stand behind.
See also
Related appliances
Sources: www.energy.gov · www.energystar.gov
Last updated: 2026-04-13