BK Electronics XLS200-DF MK2 vs Polk Audio Signature Elite ES8 Subwoofer

Short answer: a tie on sound quality. Both are rated 3.2/5 (#192 and #195 of 212 subwoofers), so choose on features and fit.

Why pick the BK Electronics XLS200-DF MK2: Compact sealed 10-inch with 275W delivers deep extension and bogglingly potent output for size.

What the Polk Audio Signature Elite ES8 Subwoofer does well: The smallest subwoofer in Polk’s Signature Elite range, matching the ES speakers in style. The catch: No independent measurements yet, so its output can’t be compared directly with ranked subwoofers; the rating is estimated from the measured Polk Audio HTS 10, the 10” sub this range replaces (114.8dB in the 40 to 80Hz CEA-2010 bands).

Buy the BK Electronics XLS200-DF MK2 or the Polk Audio Signature Elite ES8 Subwoofer on features: they are rated the same for sound quality at close to the same price.

Worth knowing: the Polk Audio Signature Elite ES8 Subwoofer has not been measured yet. Its rating is estimated from related models, with a likely range of 2.8 to 3.5, so treat this verdict as provisional.

Still deciding? The full Subwoofers rankings cover every ranked option.

Specifications Side By Side

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• Monoprice SW-15 vs BK Electronics XLS200-DF MK2
• Monoprice Monolith M-10 V2 vs BK Electronics XLS200-DF MK2
• Klipsch R-12SW vs BK Electronics XLS200-DF MK2
• RSL (Rogersound Labs) Speedwoofer 10E vs BK Electronics XLS200-DF MK2
• BK Electronics XLS200-DF MK2 vs MartinLogan Abyss 10

Prices on this page were last checked October 11, 2026 at 4:59 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.

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The Two Speakers In Full

BK Electronics XLS200-DF MK2: £412.95 B&K Electronics eBay

Pros: Compact sealed 10-inch with 275W delivers deep extension and bogglingly potent output for size. Beautiful black ash finish with excellent build quality. Downward-firing design aids room integration and positioning.

Full BK Electronics XLS200-DF MK2 review and specifications →

Amplifier Power	275W RMS
CEA-2010-A Average (40-80Hz)	105.7 dB
Cabinet Color	black, white, wood, grey
Country	United Kingdom
Dimensions	14”H x 11.4”W x 13.4”D (354.8 x 289.8 x 339.9 mm)
Drivers	10” (254mm) driver
Enclosure	sealed
Frequency Response	17Hz -6dB+
Measurement Source	Ilkka Rissanen
Output SPL at 15 Hz	84.2 dB
Output SPL at 20 Hz	89.3 dB
Output SPL at 25 Hz	94.6 dB
Output SPL at 31.5 Hz	99.4 dB
Output SPL at 40 Hz	103.1 dB
Output SPL at 50 Hz	105.4 dB
Output SPL at 63 Hz	106.9 dB
Output SPL at 80 Hz	107.5 dB
Warranty	2
Weight	38.6 lbs (17.5 kg)

• Links
  • BK Electronics XLS200-DF MK2 Website
• Reviews, Comparisons and Sound Samples
  • Independently measured by Ilkka Rissanen; the published figures above come from this ASR subwoofer measurement thread.
• Head-to-Head Comparisons
  • BK Electronics XLS200-DF MK2 vs MartinLogan Abyss 10
  • BK Electronics XLS200-DF MK2 vs Klipsch Reference R-101SW
  • BK Electronics XLS200-DF MK2 vs RSL (Rogersound Labs) Speedwoofer 10E
  • BK Electronics XLS200-DF MK2 vs Klipsch R-12SW
  • BK Electronics XLS200-DF MK2 vs Monoprice Monolith M-10 V2
  • BK Electronics XLS200-DF MK2 vs Monoprice SW-15

Polk Audio Signature Elite ES8 Subwoofer: $359.00 Estimated Amazon eBay

Same family: the Polk Signature Elite ES10 (smallest bookshelf, estimated 3.1/5), the Polk Signature Elite ES15 (bookshelf, rated 3.5/5), the Polk Signature Elite ES20 (largest bookshelf, rated 3.7/5), the Polk Signature Elite ES50 (smallest floorstanding, estimated 3.8/5), the Polk Signature Elite ES55 (floorstanding, estimated 4/5), the Polk Signature Elite ES60 (largest floorstanding, rated 3.4/5), the Polk Audio Signature Elite ES30 (smaller center, estimated 3.5/5), the Polk Audio Signature Elite ES35 (larger center, estimated 3.4/5), the Polk Audio Signature Elite ES10 Subwoofer (larger subwoofer, ranked higher, estimated 3.7/5) and the Polk Audio Signature Elite ES12 Subwoofer (larger subwoofer, ranked higher, estimated 3.8/5). See every Polk Signature generation.

Pros: The smallest subwoofer in Polk’s Signature Elite range, matching the ES speakers in style. An 8” mineral-filled polypropylene woofer and twin Power Ports are driven by a 100W amplifier with DSP and Polk’s Time-Smart phase control, rated to 32Hz.

Cons: No independent measurements yet, so its output can’t be compared directly with ranked subwoofers; the rating is estimated from the measured Polk Audio HTS 10, the 10” sub this range replaces (114.8dB in the 40 to 80Hz CEA-2010 bands). With a smaller woofer and a third of the newer models’ power, it is suited to small rooms.

Full Polk Audio Signature Elite ES8 Subwoofer review and specifications →

Released	2024 (2 years ago)
Amplifier Power	100W
Country	United States
Dimensions	15.2”H x 12.8”W x 17.2”D (385 x 326 x 437 mm)
Drivers	8” mineral-filled polypropylene woofer
Enclosure	ported
Frequency Response	32-180Hz (manufacturer specified)
Warranty	5/3
Weight	39 lbs (17.7 kg)

• Reviews, Comparisons and Sound Samples
  • No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
• Head-to-Head Comparisons
  • Polk Audio Signature Elite ES8 Subwoofer vs Klipsch Reference R-101SW
  • Polk Audio Signature Elite ES8 Subwoofer vs Polk Audio Monitor XT12
  • Polk Audio Signature Elite ES8 Subwoofer vs RSL (Rogersound Labs) Speedwoofer 10E