
Rockville W65K9D4 6.5" 1000W Peak / 250W RMS Dual 4-Ohm Car
Audio Subwoofer, CEA-Rated, OFC 2" Voice Coils, Double 66oz Magnet, Cast Aluminum Basket, for Car Audio…
Price as of 2026-06-03. Check Amazon for the current price.
Quick Decision
Price Intelligence
- Budget:$65–$108← You are here
- Mid-range:$108–$201
- Premium:$201+
Is This Right For You?
- •Budget-conscious shoppers — priced below 97% of Car Subwoofers
- •Those who want a top-rated option — in the top 13% of Car Subwoofers by rating
- •Rockville loyalists — the brand spans 26 products in our database
- •Skar Audio SDR-10 D4 10" 1200 Watt Max Power Dual 4 Ohm Car — higher rated at 4.7/5 ($95)
📊 Based on data analysis of 31 products in this category.
Mubboo Score: A
How we calculate the Mubboo Score
Quality (45%): customer rating, normalized to a 10-point scale
Popularity (35%): review volume vs the category leader, log-scaled
Value (20%): price position vs other Car Subwoofers
Computed from live Amazon rating, review count, and price across 31 Car Subwoofers available to US consumers · last refreshed 2026-06-03.
How It Compares
This Product Rockville W65K9D4 6.5" 1000W Peak / 250W RMS Dual 4-Ohm Car | Most Popular Skar Audio SVR-12 D2 12" 1600 Watt Max Power Dual 2 Ohm Car | Best Rated PIONEER A-Series TS-A2500LS4 10” Subwoofer | Best Value Skar Audio SDR-10 D4 10" 1200 Watt Max Power Dual 4 Ohm Car | |
|---|---|---|---|---|
| Price | $64.95 | $144.49 | $113 | $95.19 |
| Rating | 4.6/5 | 4.5/5 | 4.6/5 | 4.7/5 |
| Reviews | 825 | 1,639 | 500 | 1,473 |
| Mubboo Score | A | A | A | A+ |
Quick Specs
- Color
- Black
- Impedance
- 4 Ohms
- MP3 player
- No
- Unit Count
- 1.0 Count
- Item Weight
- 12 Pounds
- Manufacturer
- Rockville
- Model Number
- W65K9D4
- Power Source
- Corded Electric
What People Say
Synthesized from 40 reviews · 100% verified purchases.
Pair with a quality amplifier and properly tuned enclosure for the best sound, and break them in slowly. Be cautious with power levels as some units have failed under rated power; conservative gain settings are recommended.
- Value for Money
- Powerful Bass Output
- Clean Sound Quality
- Build Quality
- Voice Coil Failure
- Misleading Power Ratings
- Mounting Depth Issues
Key Features
- ✦POWERFUL BASS OUTPUT: 1000W peak, 500W program, and 250W RMS (CEA-rated) deliver deep, distortion-free low frequencies for impactful car audio.
- ✦PREMIUM VOICE COILS: 2" 4-layer ASV coils wound with OFC wire (USA-made) handle high heat up to 180 degree C for stable, reliable performance.
- ✦HEAVY-DUTY MAGNET: Double-stacked 66 oz magnet with high BL motor gap ensures strong output and tight bass response.
- ✦DURABLE DESIGN: Black non-pressed paper cone with black stitching, thick foam surround, and polypropylene dustcap for strength and accuracy.
- ✦ENGINEERED FOR PERFORMANCE: Cast aluminum basket with vented T-yoke for heat dissipation, 82.1dB sensitivity, 52Hz-800Hz frequency response, and 4.17" mounting depth.
Source: product listing on Amazon.
About Rockville
- 26 products in our database
- Average rating: 4.3/5 across all products
- Price range: $19.50 – $369.95
- Categories: Bookshelf Speakers, Car Subwoofers, home-theater-systems, marine-electronics, speakers
If not the W65K9D4 6.5" 1000W Peak / 250W RMS Dual 4-Ohm Car, consider these


Bottom Line
Rockville W65K9D4 6.5" 1000W Peak / 250W RMS Dual 4-Ohm Car earns Mubboo Score A. Priced at $65 — a budget-friendly option, below the category average of $172. Rated 4.6/5 from 825+ reviews. Strong buy if: budget-conscious shoppers, those who want a top-rated option.
Frequently Asked Questions
Is the Rockville W65K9D4 6.5" 1000W Peak / 250W RMS Dual 4-Ohm Car worth buying in 2026?
It earns a Mubboo Score of A, with a 4.6/5 rating from 825 reviews — better than 87% of Car Subwoofers we track.
How much does the Rockville W65K9D4 6.5" 1000W Peak / 250W RMS Dual 4-Ohm Car cost?
It is currently $64.95 — budget-tier pricing for Car Subwoofers.
How does the W65K9D4 6.5" 1000W Peak / 250W RMS Dual 4-Ohm Car compare to other Car Subwoofers?
The category's most-reviewed alternative is the Skar Audio SVR-12 D2 12" 1600 Watt Max Power Dual 2 Ohm Car (4.5/5, 1,639 reviews, $144.49). The W65K9D4 6.5" 1000W Peak / 250W RMS Dual 4-Ohm Car carries a Mubboo Score of A vs A.
Sources & References
Products available through US retailers. Prices in USD. Sales tax varies by state and is not included.
Mubboo may earn a commission on purchases made through affiliate links. This does not affect our Mubboo Score, product rankings, or editorial judgments. Prices are accurate as of the last sync (2026-06-03) and may change.