Short answer: the Perlisten R4b if sound quality matters most, the Klipsch RP-600M II if price matters most. The Perlisten R4b ranks #21 of 222 bookshelf speakers, rated 4.5/5, at $5,390. The Klipsch RP-600M II ranks #123, rated 3.7/5, at $449.99, $4,940.01 cheaper.
The case for 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 Perlisten R4b is the better-sounding pick. A THX certified sealed three way bookshelf speaker with smooth, fairly neutral sound and excellent value for its class. The tradeoff: Sealed acoustic-suspension loading trades reach for control: the measured -3dB point is 80.3Hz, shallow bass extension for a standmount this size.
Buy the Klipsch RP-600M II if the price matters more than sound quality. Buy the Perlisten R4b if sound quality matters more than the price.
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 THX certified sealed three way bookshelf speaker with smooth, fairly neutral sound and excellent value for its class.
Prices on this page were last checked November 1, 2026 at 7:43 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-600M II | Perlisten R4b | |
|---|---|---|
| Price | $449.99 per pair | $5,390 per pair |
| Ranked | #123 of 222 in Large Size Bookshelf Speakers | #21 of 222 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 41Hz (measured, Erin’s Audio Corner) | 45Hz (manufacturer specified) |
| Bass Extension (-3dB) | 70Hz (measured, Erin’s Audio Corner) | 80.3Hz (manufacturer spinorama data) |
| Dimensions | 15.7”H x 8”W x 12.5”D (398.8 x 203.2 x 317.5 mm) | 15”H x 9.1”W x 9.3”D (382 x 230 x 236 mm) |
| Impedance | 8 ohms nominal (3.5 ohms minimum above 80Hz, measured by Erin’s Audio Corner) | 4 ohms nominal, 3.8 ohms minimum |
| Sensitivity | 86dB (measured, Erin’s Audio Corner) | 84.6dB @ 2.83V/1m |
| Drivers | 6.5” Cerametallic cone woofer, 1” titanium LTS vented tweeter with Tractrix horn | 3x 26mm silk dome (tweeter + 2 midrange), 165mm (6.5”) HPF woofer |
| Weight | 13 lbs (5.9 kg) each | 20.9 lbs (9.5 kg) each |
| Woofer Cabinet | ported | - |
| Spinorama Preference Score | 5.64 | 5.76 |
| Spinorama Preference Score with Perfect Sub | 7.77 | 8.63 |
| DIY Kit | No | No |
| Enclosure | - | 3-way, sealed (acoustic suspension) |
| Power Handling | - | 50-200W RMS recommended amplifier power |
| Frequency Response | - | 80Hz-20kHz +/-1.5dB |
| Frequency Response (-10dB) | - | 45Hz-32kHz (manufacturer specified) |
| Certification | - | THX Ultra |
| Warranty | - | 5 years, extendable to 6 with product registration |
| Country | - | Designed in the United States (Verona, Wisconsin) |
| Maximum SPL | - | 107.6dB peak (manufacturer specified) |
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