Short answer: the JBL 4309. It ranks #167 of 222 bookshelf speakers by sound quality, rated 3.3/5, at $1,299.99. The Polk R200 ranks #178, rated 3.2/5, at $799, $500.99 cheaper, a saving that is not big enough to make up the sound-quality gap.
The JBL 4309 is the deeper-bass choice. A compact JBL studio style bookshelf speaker with a horn loaded compression tweeter, solid bass extension and an adjustable treble control. Its bass reaches about 60.1Hz before falling 3dB, against 74Hz for the Polk R200. The catch: Measured preference is modest for a roughly $1300 pair, and the four-ohm load needs solid amplification.
The Polk R200 is the more accurate choice. A Polk bookshelf speaker with a 6.5 inch woofer and a ring radiator tweeter, sized for a medium room. Its measured preference score, a predictor of how neutral it sounds, is 5.09 against 3.32 for the JBL 4309. The tradeoff: A resonance and associated distortion increase around 800Hz-1kHz creates a “tinny,” occasionally glaring quality on certain instruments and vocals, confirmed both by ear and in the frequency-response and distortion measurements.
Buy the JBL 4309. It is rated higher for sound quality, and saving $500.99 with the Polk R200 does not make up for the sound-quality gap.
Still deciding? The full Passive Home rankings cover every ranked option.
Prices on this page were last checked November 7, 2026 at 7:34 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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Specifications Side By Side
| JBL 4309 | Polk R200 | |
|---|---|---|
| Price | $1,299.99 per pair | $799.00 per pair |
| Ranked | #167 of 222 in Large Size Bookshelf Speakers | #178 of 222 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | about 37.1Hz (measured, Audio Science Review) | 50Hz (measured, Erin’s Audio Corner) |
| Enclosure | 2-way front-ported | - |
| Drivers | 1-inch compression driver on HDI horn, 6.5-inch pulp woofer | 25mm soft dome + 165mm woofer |
| Frequency Response | 42Hz-30kHz (-6dB) | - |
| Sensitivity | 87dB | 85dB |
| Impedance | 4 ohms | 4 ohms nominal, 3.8 ohms minimum (measured, Erin’s Audio Corner) |
| Dimensions | 16.5H x 10.25W x 9D in | 14.1”H x 7.5”W x 13.9”D (359.0 x 190.0 x 353.8 mm) |
| Weight | 24.3 lbs (11 kg) each | 31.3 lbs (14.2 kg) |
| Spinorama Preference Score | 3.32 | 5.09 |
| Spinorama Preference Score with Perfect Sub | 5.33 | 7.61 |
| Bass Extension (-3dB) | 60.1Hz (measured, ASR via spinorama.org) | 74Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No | No |
| Woofer Cabinet | - | ported, rear |
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