Short answer: the Klipsch RP-500M II for the higher ranking, the Neumi Silk 4 for the lower price. The Klipsch RP-500M II ranks #7 of 21 bookshelf speakers at $389.99. The Neumi Silk 4 ranks #15 at $199.99, $190 cheaper.
On the Klipsch RP-500M II side: Major mid-range clarity improvement over the original RP-500M: about a 5dB fill-in between 1-3kHz in the estimated in-room response. The tradeoff: Klipsch’s quoted sensitivity (around 92-93dB) uses an unconventional in-room-based rating rather than the standard anechoic measurement.
The case for the Neumi Silk 4: A 4” midwoofer paired with a 1” dome tweeter and waveguide, with a second-order crossover. Set against that: Very low sensitivity (measured 82.6dB), meaning it isn’t suited for large rooms, far-field listening, or high volume.
Buy the Klipsch RP-500M II if the ranking matters more than the price. Buy the Neumi Silk 4 if the price matters more than the ranking.
Specifications Side By Side
| Klipsch RP-500M II | Neumi Silk 4 | |
|---|---|---|
| Price | $389.99 | $199.99 |
| Ranked | #7 of 21 in Medium Size Bookshelf Speakers | #15 of 21 in Medium Size Bookshelf Speakers |
| Bass Extension (-10dB) | 53Hz | 55Hz |
| Bass Extension (-3dB) | 67Hz | 83Hz |
| Crossover Frequency | 1530Hz | - |
| Dimensions | 13.56"H x 6.81"W x 10.65"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 | 6 ohms |
| Sensitivity | 85dB | 82.5dB |
| 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 | Rear ported | - |
The Two Speakers In Full
Klipsch RP-500M II: $389.99 Amazon
Pros: Major mid-range clarity improvement over the original RP-500M: about a 5dB fill-in between 1-3kHz in the estimated in-room response, giving a noticeably more resolved, detailed midrange. More neutral and linear overall than its sibling RP-600M II, which carries about 2-3dB more high-frequency energy and a touch more bass but less overall balance. Very precise soundstage imaging and instrument placement. Distortion through the midrange is cleaner than the previous generation.
Cons: Klipsch’s quoted sensitivity (around 92-93dB) uses an unconventional in-room-based rating rather than the standard anechoic measurement; on an anechoic basis it measures closer to about 85dB, in line with typical bookshelf speakers this size, so it isn’t the outlier in efficiency the spec sheet implies. Horizontal dispersion of about ±40-50° is narrower and more directive than the reviewer’s preference for a wider, more enveloping soundstage. Toeing the speaker out to widen the soundstage or soften on-axis brightness comes at some cost to imaging precision. Slightly less clean in the tweeter region than the midrange, likely tied to crossover placement, though not considered a dealbreaker. Low-frequency output is limited - measured around 95dB at 4 meters for the pair before the woofers started to unload, so a subwoofer is recommended for anyone wanting real bass rather than stepping up to a larger model.
| Bass Extension (-10dB) | 53Hz |
|---|---|
| Bass Extension (-3dB) | 67Hz |
| Crossover Frequency | 1530Hz |
| Dimensions | 13.56"H x 6.81"W x 10.65"D (344.4 x 173 x 270.5 mm) |
| Drivers | 5.25" Cerametallic™ cone woofer with Faraday rings, 1" LTS Titanium diaphragm tweeter with Hybrid Cross-Section Expanded Tractrix® horn |
| Impedance | 8 ohms |
| Sensitivity | 85dB |
| Weight | 13 lbs / 5.9 kg each |
| Woofer Cabinet | Rear ported |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Links
Neumi Silk 4: $199.99 Amazon
Pros: A 4” midwoofer paired with a 1” dome tweeter and waveguide, with a second-order crossover, achieving an impressively high preference score of 4.4 for the price. Distortion stays below 1% up to about 120Hz and below 3% above roughly 50-60Hz at 86dB. High-frequency compression is surprisingly good - better than some speakers costing 2-3x as much - and at 96dB/1m for a pair, output still reaches about 93dB at 3 meters, plenty loud for most listeners. F3 of 83Hz and F10 of 55Hz with in-room extension to about 70Hz. Takes very well to EQ correction, and the reviewer provides a specific fix (a notch around 650Hz, Q of about 6) that cleans up its main resonance.
Cons: Very low sensitivity (measured 82.6dB), meaning it isn’t suited for large rooms, far-field listening, or high volume. A resonance around 650Hz (likely port- or cabinet-related) creates an audible 1-2dB midrange thickness/boxiness on certain tracks, tied to a probable baffle-step compensation shortfall - about 1dB more energy in the midrange from the factory would likely have resolved it. Multitone distortion becomes audible around the same 600Hz-1kHz region at 96dB. Horizontal radiation narrows to about ±50° with the waveguide, on the narrower side of what the reviewer prefers. A diffraction-related dip around 5kHz at 5° below the tweeter axis creates a small hole in the response if placed on a desk below ear level. Nominal impedance of about 6 ohms with a low sensitivity means it benefits from a subwoofer pairing (the reviewer suggests an 80Hz crossover) for a complete small-room or surround setup.
| Bass Extension (-10dB) | 55Hz |
|---|---|
| Bass Extension (-3dB) | 83Hz |
| Dimensions | 8.9"H x 5.5"W x 8.2"D (226.1 x 139.7 x 208.3 mm) |
| Drivers | 4" treated paper cone, rubber surround, cast aluminum basket, vented pole woofer, 1" silk dome, dispersion-optimized waveguide, neodymium magnet tweeter |
| Impedance | 6 ohms |
| Sensitivity | 82.5dB |
| Weight | 6.2 lbs / 2.8 kg each |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- 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.