Short answer: the Revel M126Be for better sound quality, the Klipsch RP-600M II for the lower price. The Revel M106 ranks higher than the Klipsch RP-600M II (#9 vs #124 of 223 bookshelf speakers) but is discontinued. Its replacement, the Revel M126Be, is rated 4.3/5 at $4,400; the Klipsch RP-600M II is rated 3.7/5 at $449.99, $3,950.01 cheaper.
Why pick the Klipsch RP-600M II: Bookshelf speakers with a large horn tweeter, wide soundstage, high efficiency and bi-amp ready terminals. The catch: On-axis, the treble runs notably hot (even hotter than the original Klipsch RP-600M in some respects) and needs about 20° of toe-out or the grille installed to sound balanced.
The Revel M106 is the better-sounding, deeper-bass option. A highly accurate bookshelf speaker with smooth, natural in-room sound and low distortion, now discontinued but worth buying used. Its bass reaches about 60Hz before falling 3dB, against 70Hz for the Klipsch RP-600M II. The catch: Some directivity error and response variation shows up in the crossover region.
Buy the Klipsch RP-600M II if price matters most. For better sound quality, the Revel M126Be, the replacement for the discontinued Revel M106, is rated higher but costs $4,400.
Want more options? Browse the full Passive Home rankings.
Bookshelf speakers with a large horn tweeter, wide soundstage, high efficiency and bi-amp ready terminals.
A highly accurate bookshelf speaker with smooth, natural in-room sound and low distortion, now discontinued but worth buying used.
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Specifications Side By Side
| Klipsch RP-600M II | Revel M106 | |
|---|---|---|
| Price | $449.99 per pair | $2,000 per pair Discontinued |
| Ranked | #124 of 223 in Large Size Bookshelf Speakers | #9 of 223 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 41Hz (measured, Erin’s Audio Corner) | 43Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 70Hz (measured, Erin’s Audio Corner) | 60Hz (measured, Audio Science Review) |
| Dimensions | 15.7”H x 8”W x 12.5”D (398.8 x 203.2 x 317.5 mm) | 15”H x 8.3”W x 11”D (381.0 x 210.8 x 279.4 mm) |
| Impedance | 8 ohms nominal (3.5 ohms minimum above 80Hz, measured by Erin’s Audio Corner) | 4 ohms |
| Sensitivity | 86dB (measured, Erin’s Audio Corner) | 86dB (measured, Audio Science Review) |
| Drivers | 6.5” Cerametallic cone woofer, 1” titanium LTS vented tweeter with Tractrix horn | 6.5” (16.5 cm) Aluminum Cone, Cast-frame Woofer, 1” (2.5 cm) Aluminum Tweeter with Acoustic Lens Waveguide |
| Weight | 13 lbs (5.9 kg) each | 9.9 lbs (4.5 kg) |
| Woofer Cabinet | ported | ported, rear |
| Spinorama Preference Score | 5.64 | 5.62 |
| Spinorama Preference Score with Perfect Sub | 7.77 | 7.87 |
| DIY Kit | No | No |
Frequency Response Compared
Both speakers’ spinorama measurements, overlaid. A flatter line is more neutral: peaks sound forward or harsh, dips sound recessed. Each curve is shifted so its average from 300 Hz to 3 kHz sits at 0 dB, so loudness differences between the two are removed and only the shape is compared. The two were measured by different sources, so small differences, especially in the bass, can come from the measurement setup rather than the speakers.
Measurement data: Klipsch RP-600M II (measured by Erin’s Audio Corner) and Revel M106 (measured by Audio Science Review), via spinorama.org.
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