Short answer: the Klipsch RP-600M II, if you are buying new. The Monolith Encore B6 ranks higher than it (#99 vs #123 of 222 bookshelf speakers, 3.9/5 vs 3.7/5) but is discontinued, so only consider it used; the Klipsch RP-600M II is still sold new at $449.99.
The Klipsch RP-600M II is the more accurate pick. Bookshelf speakers with a large horn tweeter, wide soundstage, high efficiency and bi-amp ready terminals. Its measured preference score, a predictor of how neutral it sounds, is 5.64 against 4.67 for the Monolith Encore B6. The tradeoff: 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.
Why pick the Monolith Encore B6: Budget bookshelf speakers with punchy midbass, smooth wide dispersion and an unusually solid braced cabinet for the price. The tradeoff: Erin measured 85.3dB sensitivity and a 3.4-ohm minimum, so this is not an easy load despite its modest output ceiling.
Buy the Klipsch RP-600M II new; the Monolith Encore B6 is no longer sold new, so it only makes sense as a used find.
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.
Budget bookshelf speakers with punchy midbass, smooth wide dispersion and an unusually solid braced cabinet for the price.
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Specifications Side By Side
| Klipsch RP-600M II | Monolith Encore B6 | |
|---|---|---|
| Price | $449.99 per pair | $360 per pair Discontinued |
| Ranked | #123 of 222 in Large Size Bookshelf Speakers | #99 of 222 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 41Hz (measured, Erin’s Audio Corner) | 37Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 70Hz (measured, Erin’s Audio Corner) | 68Hz (measured, Erin’s Audio Corner) |
| Dimensions | 15.7”H x 8”W x 12.5”D (398.8 x 203.2 x 317.5 mm) | 15.7H x 7.9W x 9.9D inches |
| Impedance | 8 ohms nominal (3.5 ohms minimum above 80Hz, measured by Erin’s Audio Corner) | 4 ohms nominal; 3.4 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 86dB (measured, Erin’s Audio Corner) | 85.3dB/2.83V/1m (measured, Erin’s Audio Corner) |
| Drivers | 6.5” Cerametallic cone woofer, 1” titanium LTS vented tweeter with Tractrix horn | 6.5-inch pulp woofer; 25mm waveguided silk dome |
| Weight | 13 lbs (5.9 kg) each | 15.4 lbs (7.0 kg) each |
| Woofer Cabinet | ported | - |
| Spinorama Preference Score | 5.64 | 4.67 |
| Spinorama Preference Score with Perfect Sub | 7.77 | 6.93 |
| DIY Kit | No | No |
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