Short answer: the Klipsch RP-500M II unless you need the lowest price. It ranks #27 of 179 bookshelf speakers at $389.99 with about a 5dB fill-in between 1-3kHz over the original RP-500M, though its 92-93dB sensitivity uses an in-room-based rating rather than the standard anechoic measurement. The Neumi Silk 4 costs $199.99, but its measured 82.6dB sensitivity means it isn’t suited to large rooms, far-field listening or high volumes.
Buy the Klipsch RP-500M II. It is rated higher for sound quality, and the $190 saving on the Neumi Silk 4 is not enough to make up the difference.
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
| Klipsch RP-500M II | Neumi Silk 4 | |
|---|---|---|
| Price | $389.99 per pair | $199.99 per pair |
| Ranked | #27 of 179 in Medium Size Bookshelf Speakers | #58 of 179 in Medium Size Bookshelf Speakers |
| Bass Extension (-10dB) | 53Hz (measured, Erin’s Audio Corner) | 55Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 67Hz (measured, Erin’s Audio Corner) | 83Hz (measured, Erin’s Audio Corner) |
| Crossover Frequency | 1530Hz | - |
| Dimensions | 13.6”H x 6.8”W x 10.6”D (344.4 x 173 x 270.5 mm) | 8.9”H x 5.5”W x 8.2”D (226.1 x 139.7 x 208.3 mm) |
| Impedance | 8 ohms nominal, 3.3 ohms minimum (measured, Erin’s Audio Corner) | 6 ohms nominal, 5.7 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 85dB (measured, Erin’s Audio Corner) | 82.6dB (measured, Erin’s Audio Corner) |
| Drivers | 5.25” Cerametallic™ cone woofer with Faraday rings, 1” LTS Titanium diaphragm tweeter with Hybrid Cross-Section Expanded Tractrix® horn | 4” treated paper cone, rubber surround, cast aluminum basket, vented pole woofer, 1” silk dome, dispersion-optimized waveguide, neodymium magnet tweeter |
| Weight | 13 lbs (5.9 kg) each | 6.2 lbs (2.8 kg) each |
| Woofer Cabinet | ported, rear | ported, rear |
| Spinorama Preference Score | 5.22 | 4.44 |
| Spinorama Preference Score with Perfect Sub | 7.84 | 7.10 |
| DIY Kit | No | No |
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