Short answer: the Polk Signature Elite ES60 on measured sound quality, the Rockville RockTower 68B on price. The Polk Signature Elite ES60 ranks #187 of 228 floorstanding speakers, rated 3.4/5, at $1,198. The Rockville RockTower 68B ranks #223, rated 2.2/5, at $234.90, $963.10 cheaper.
The Polk Signature Elite ES60 is the more accurate, deeper-bass option. A value tower with three 6.5 inch woofers for strong output and deep bass, easy to drive. Its measured preference score, a predictor of how neutral it sounds, is 3.69 against 0.96 for the Rockville RockTower 68B. Its bass reaches about 51.3Hz before falling 3dB, against 60.1Hz for the Rockville RockTower 68B. Watch for: The measured data show enough directivity and response unevenness to keep it below the strongest neutral towers, and its large cabinet needs room.
What the Rockville RockTower 68B does well: A very inexpensive three way tower with twin woofers and a dedicated midrange, sold direct with free shipping. The catch: Objective performance is weak: its preference score is only 0.96 without a subwoofer and 3.42 with one, placing it near the bottom of the measured floorstanders.
Buy the Polk Signature Elite ES60 if sound quality is the priority over the price, or the Rockville RockTower 68B if the price is the priority over sound quality.
Want more options? Browse the full Passive Home rankings.
Measured Differences
- Bass depth: the Polk Signature Elite ES60 reaches 51.3 Hz (3 dB down) against 60.1 Hz for the Rockville RockTower 68B, about half an octave deeper. You hear more of the lowest bass notes and kick drums.
- Tonal accuracy above the bass: with a subwoofer taking the low end, the Polk Signature Elite ES60 scores 5.6 against 3.4 for the Rockville RockTower 68B on the Spinorama preference scale. Its frequency response and off-axis sound are smoother, so voices and instruments sound closer to the recording.
- Efficiency: the Polk Signature Elite ES60 is rated at 90 dB sensitivity against 87 dB for the Rockville RockTower 68B, so it plays as loud with roughly half the amplifier power.
Prices on this page were last checked November 14, 2026 at 6:17 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| Polk Signature Elite ES60 | Rockville RockTower 68B | |
|---|---|---|
| Price | $1,198 per pair | $234.90 per pair |
| Ranked | #187 of 228 in Large Size Floorstanding Speakers | #223 of 228 in Large Size Floorstanding Speakers |
| Enclosure | 2-way floorstander with Power Port | Passive 3-way vented floorstander |
| Drivers | 1” Terylene tweeter, three 6.5” woofers | 1-inch silk-dome tweeter, 6.5-inch midrange, dual 6.5-inch woofers |
| Frequency Response | 32Hz-40kHz (manufacturer) | 30Hz-20kHz (manufacturer specified) |
| Sensitivity | 90dB specified; 89.5dB measured | 87dB |
| Impedance | 8 ohms compatible | 8 ohms |
| Dimensions | 44.5H x 8.5W x 15.7D in | 41.7”H x 7.9”W x 10.4”D (1060 x 200 x 265 mm) |
| Weight | 52 lbs (23.6 kg) each | 55.1 lbs (25.0 kg) each |
| Spinorama Preference Score | 3.69 | 0.96 |
| Spinorama Preference Score with Perfect Sub | 5.57 | 3.42 |
| Bass Extension (-3dB) | 51.3Hz (measured, ASR via spinorama.org) | 60.1Hz (measured, Erin’s Audio Corner via spinorama.org) |
| Bass Extension (-10dB) | 37.1Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) | 43.1Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
| DIY Kit | No | No |
| Bass Extension (-6dB) | - | 54Hz (measured, Spinorama) |
| Power Handling | - | 125W RMS / 500W peak |
Where the Ratings Come From
- Polk Signature Elite ES60: Spinorama.org measurements.
- Rockville RockTower 68B: Spinorama.org measurements.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
Related Speaker Comparisons
More top alternatives to Polk Signature Elite ES60: