Polk Audio XT70 vs JBL Stage 2 280F

Last updated: September 29, 2026

Short answer: the Polk Audio XT70. It ranks #58 of 73 floorstanding speakers by sound quality, rated 3.6/5, at $698; the JBL Stage 2 280F ranks #63, rated 3.4/5, and costs $1,319.90, so there is not much of a tradeoff to weigh.

Polk Audio XT70 vs JBL Stage 2 280F

What the Polk Audio XT70 does well: The flagship tower in Polk’s current Monitor XT lineup, sitting above the XT60 and XT15 in the same series, adding a second 6.5” woofer and dual 8” passive radiators for more low-end output. Watch for: On-axis smoothness (0.274) and listening-window smoothness (0.303) are unremarkable for a tower this size, with a pronounced +0.28dB per octave upward tonal tilt giving it a brighter-leaning balance and a predicted in-room smoothness of just 0.31.

What the JBL Stage 2 280F does well: Genuinely impressive output capability and low compression/distortion for the price, courtesy of the dual 8” woofers: the reviewer’s standout praise for this pair. Watch for: Explicitly called out as disappointing relative to expectations for the JBL name and this price point: lacks native linearity compared to similarly-priced alternatives like the Polk Reserve R500, which the reviewer recommends instead for anyone who doesn’t want to rely on EQ.

Buy the Polk Audio XT70. It is rated higher for sound quality than the JBL Stage 2 280F and costs less, so only choose the other one for a particular feature it does better.

Still deciding? The full Passive Home rankings cover every ranked option.

Specifications Side By Side

Polk Audio XT70 JBL Stage 2 280F
Price$698 per pair$1,319.90 per pair
Ranked#58 of 73 in Large Size Floorstanding Speakers#63 of 73 in Large Size Floorstanding Speakers
EnclosurePorted, critically-braced MDF-
Drivers1” Terylene dome tweeter, 2x 6.5” Dynamic Balance woofers, 2x 8” passive radiators1” anodized aluminum dome tweeter with HDI waveguide, dual 8” polycellulose woofers
Dimensions40.4H x 9.25W x 12.5D in43.8” x 14.1” x 16.5” (1113 x 358 x 419 mm)
Weight35.1 lbs (15.9 kg) each55.1 lbs (25 kg) each
Sensitivity89dB @ 1W/1m89.5dB (2.83V/1m, measured by Erin’s Audio Corner)
Impedance4/8 ohm compatible6 ohms nominal, 3.9 ohms minimum (measured, Erin’s Audio Corner)
CountryChina-
Spinorama Preference Score5.164.69
Spinorama Preference Score with Perfect Sub7.106.14
Bass Extension (-3dB)43.9Hz (measured, Erin’s Audio Corner via spinorama.org)48Hz (measured, Erin’s Audio Corner)
Bass Extension (-10dB)37.7Hz (derived, sustained-crossing interpolation, Erin’s Audio Corner via spinorama.org)30Hz (measured, Erin’s Audio Corner)
DIY KitNoNo
Crossover Frequency-1.1kHz, 2.1kHz
Power Handling-125W RMS
Woofer Cabinet-ported, rear

How Polk Audio XT70 compares with other leading options:

Prices on this page were last checked September 29, 2026 at 3:43 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

Polk Audio XT70: $698 per pair Amazon eBay

Polk Audio XT70 ranking card

Pros: The flagship tower in Polk’s current Monitor XT lineup, sitting above the XT60 and XT15 in the same series, adding a second 6.5” woofer and dual 8” passive radiators for more low-end output. Rated for both 4 and 8 ohm operation. Measured bass extension of 43.9Hz (-3dB).

Cons: On-axis smoothness (0.274) and listening-window smoothness (0.303) are unremarkable for a tower this size, with a pronounced +0.28dB per octave upward tonal tilt giving it a brighter-leaning balance and a predicted in-room smoothness of just 0.31. Directivity-index standard deviation of 3.33 is unremarkable either way.

Bass Extension (-10dB)37.7Hz (derived, sustained-crossing interpolation, Erin’s Audio Corner via spinorama.org)
Bass Extension (-3dB)43.9Hz (measured, Erin’s Audio Corner via spinorama.org)
CountryChina
DIY KitNo
Dimensions40.4H x 9.25W x 12.5D in
Drivers1” Terylene dome tweeter, 2x 6.5” Dynamic Balance woofers, 2x 8” passive radiators
EnclosurePorted, critically-braced MDF
Impedance4/8 ohm compatible
Sensitivity89dB @ 1W/1m
Spinorama Preference Score5.16
Spinorama Preference Score with Perfect Sub7.10
Weight35.1 lbs (15.9 kg) each

JBL Stage 2 280F: $1,319.90 per pair Amazon eBay

JBL Stage 2 280F ranking card

Pros: Genuinely impressive output capability and low compression/distortion for the price, courtesy of the dual 8” woofers: the reviewer’s standout praise for this pair. High sensitivity (89.5dB measured) and low impedance make it easy to drive. Decent bass extension (F3 48Hz, F10 30Hz) reaches about 50Hz in-room. Horizontal dispersion is reasonably consistent (~55 degrees), meaning the speaker takes reasonably well to EQ correction. Measured bass extension of 48Hz (-3dB), with a measured sensitivity of 89.5dB.

Cons: Explicitly called out as disappointing relative to expectations for the JBL name and this price point: lacks native linearity compared to similarly-priced alternatives like the Polk Reserve R500, which the reviewer recommends instead for anyone who doesn’t want to rely on EQ. Treble falls off a cliff above about 10-12kHz, giving a notable lack of air/space that needs real correction (a wide +Q0.5 boost from 10-20kHz) to fix. A sharp impedance resonance around 900Hz-1.1kHz is nearly impossible to EQ out cleanly even with narrow filters. Elevated multitone distortion in the 600Hz-2.5kHz range, tied to the midwoofer rather than the tweeter. Compared to the similarly-priced Klipsch RP-6000F II/RP-8000F II, this JBL is less directive and native-flat but does extend roughly 20Hz deeper in the bass: a real tradeoff either way, not a clean win.

Bass Extension (-10dB)30Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)48Hz (measured, Erin’s Audio Corner)
Crossover Frequency1.1kHz, 2.1kHz
DIY KitNo
Dimensions43.8” x 14.1” x 16.5” (1113 x 358 x 419 mm)
Drivers1” anodized aluminum dome tweeter with HDI waveguide, dual 8” polycellulose woofers
Impedance6 ohms nominal, 3.9 ohms minimum (measured, Erin’s Audio Corner)
Power Handling125W RMS
Sensitivity89.5dB (2.83V/1m, measured by Erin’s Audio Corner)
Spinorama Preference Score4.69
Spinorama Preference Score with Perfect Sub6.14
Weight55.1 lbs (25 kg) each
Woofer Cabinetported, rear