Short answer: the ELAC DB63 for the higher ranking, the Polk Monitor XT20 for the lower price. The ELAC DB63 ranks #20 of 47 bookshelf speakers at $500. The Polk Monitor XT20 ranks #35 at $279, $221 cheaper.
On the ELAC DB63 side: 1” aluminum dome tweeter with a distinctive partial-lens waveguide design paired with a 6.5” third-generation aramid fiber cone woofer. The catch: A dip in the lower midrange (300-600Hz, about 1.5dB) reduces vocal warmth and can make voices sound slightly hollow.
The case for the Polk Monitor XT20: Two-way bookshelf design with a 1” tweeter and 6.5” woofer. Set against that: Notably bright treble, elevated roughly 1-5dB above the midrange depending on frequency - a characteristic shared across the whole Polk XT.
Buy the ELAC DB63 if the ranking matters more than the price. Buy the Polk Monitor XT20 if the price matters more than the ranking.
Specifications Side By Side
| ELAC DB63 | Polk Monitor XT20 | |
|---|---|---|
| Price | $500 | $279.00 |
| Ranked | #20 of 47 in Large Size Bookshelf Speakers | #35 of 47 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 40Hz | 50Hz |
| Bass Extension (-3dB) | 76Hz | 75Hz |
| Dimensions | 13.3"H x 7.7"W x 11.7"D (337.8 x 195.6 x 297.2 mm) | 13"H x 7.5"W x 11"D (330.2 x 190.5 x 279.4 mm) |
| Impedance | 6 ohms | 8 ohms |
| Sensitivity | 86dB | 87dB |
| Drivers | 6.5" Aramid Fiber woofer, 1" soft dome tweeter | 6.5" bilaminate paper cone woofer, 1" Terylene dome tweeter |
| Weight | 17.2 lbs / 7.8 kg each | 11.9 lbs / 5.4 kg each |
| Woofer Cabinet | Rear ported | Ported |
The Two Speakers In Full
ELAC DB63: $500 Crutchfield Amazon
Pros: 1” aluminum dome tweeter with a distinctive partial-lens waveguide design paired with a 6.5” third-generation aramid fiber cone woofer, in a robustly built cabinet for the price. Shallow bass rolloff (F3 76Hz, F10 40Hz) allows placement close to a wall without excessive boominess, useful for smaller living rooms. Solid measured performance for the price: on-axis linearity within about 2.5dB, impedance dipping only to about 4.4 ohms (easily AVR-driven), and roughly 20-26dB of usable dynamic range. A clear improvement over its sibling ELAC DB62, which has a sibilance issue tied to the crossover that can’t be fixed with EQ. Wide horizontal radiation of about ±60°, giving a spacious soundstage. Distortion looks good at a moderate 86dB and still reasonable at 96dB. Takes well to EQ correction - the reviewer provides a specific filter set (a low-shelf boost at 650Hz plus peaking cuts/boosts at 550Hz, 660Hz, and 3kHz) that meaningfully smooths out its known deviations.
Cons: A dip in the lower midrange (300-600Hz, about 1.5dB) reduces vocal warmth and can make voices sound slightly hollow. A high-Q resonance around 650-750Hz shows up clearly in measurements, though the reviewer couldn’t reliably hear it in his own A/B testing. A dip around 2-3kHz (roughly 1-2dB) slightly reduces speech intelligibility and attack in the upper midrange. Directivity droops above about 2kHz as the midwoofer narrows toward its beaming frequency while the tweeter’s pattern behaves differently - an inherent trade-off of physically separated drivers that can’t be fully corrected without introducing other issues. Multitone distortion crosses the reviewer’s 3% threshold in the 200Hz-1kHz range, and adding a subwoofer at an 80Hz crossover only modestly reduces it. Toeing the speaker away from the listener loses noticeable top-end air and cymbal energy, giving a softer upper register. Practical loudness ceiling is around 90dB at typical listening distance before midrange distortion and bass attack begin to degrade. Still needs a subwoofer for extension below about 40Hz.
| Bass Extension (-10dB) | 40Hz |
|---|---|
| Bass Extension (-3dB) | 76Hz |
| Dimensions | 13.3"H x 7.7"W x 11.7"D (337.8 x 195.6 x 297.2 mm) |
| Drivers | 6.5" Aramid Fiber woofer, 1" soft dome tweeter |
| Impedance | 6 ohms |
| Sensitivity | 86dB |
| Weight | 17.2 lbs / 7.8 kg each |
| Woofer Cabinet | Rear ported |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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- Links
Polk Monitor XT20: $279.00 Crutchfield Amazon
Pros: Two-way bookshelf design with a 1” tweeter and 6.5” woofer, part of Polk’s budget-friendly XT lineup (spanning roughly $200-700 across the series). Measures more linear and has fewer/smaller cabinet resonances than its smaller sibling, the XT15, making it - by the reviewer’s own assessment - probably the better of the two based on data alone. Reasonably good bass output for the price and size, with an F3 of 63Hz. Horizontal radiation of about ±50° gives a respectable, enjoyable soundstage width. Takes well to EQ correction - the early-reflections directivity trend is decently linear, meaning tonal adjustments can meaningfully improve the sound. Provides usable, respectable volume when paired with a subwoofer crossover, even though it isn’t intended to play extremely loud on its own.
Cons: Notably bright treble, elevated roughly 1-5dB above the midrange depending on frequency - a characteristic shared across the whole Polk XT lineup, requiring either EQ or toe-out to tame. Small resonances appear around 300Hz and 800Hz, with some of that energy leaking from the port area. Vertical listening window is narrow - best kept close to the tweeter axis, with only a couple of degrees of tolerance above or below before the sound changes. Still needs a subwoofer for real low-end extension despite the decent F3. Overall linearity isn’t state-of-the-art flat, and while the reviewer found it pleasant, some artificial brightness remains even after basic EQ correction in the crossover region.
| Bass Extension (-10dB) | 50Hz |
|---|---|
| Bass Extension (-3dB) | 75Hz |
| Dimensions | 13"H x 7.5"W x 11"D (330.2 x 190.5 x 279.4 mm) |
| Drivers | 6.5" bilaminate paper cone woofer, 1" Terylene dome tweeter |
| Impedance | 8 ohms |
| Sensitivity | 87dB |
| Weight | 11.9 lbs / 5.4 kg each |
| Woofer Cabinet | Ported |
- Reviews, Comparisons and Sound Samples
- Links
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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.