Short answer: the Klipsch RP-600M II. Both are rated 3.7/5 for sound quality (#123 and #121 of 222 bookshelf speakers), and the Klipsch RP-600M II costs $449.99 against $3,499 for the PS Audio Aspen FR5, with sound quality a draw, the lower price decides it.
The Klipsch RP-600M II is the more accurate choice. 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 4.64 for the PS Audio Aspen FR5. 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 PS Audio Aspen FR5 is the deeper-bass pick. Compact speakers with a planar tweeter and passive radiator that reach unusually deep bass for their size. Its bass reaches about 56.4Hz before falling 3dB, against 70Hz for the Klipsch RP-600M II. The tradeoff: Very low measured sensitivity near 81.6dB means it needs capable amplification despite its benign 5.6-ohm minimum.
Buy the Klipsch RP-600M II. Both are rated the same for sound quality, and it costs $3,049.01 less than the PS Audio Aspen FR5.
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.
Compact speakers with a planar tweeter and passive radiator that reach unusually deep bass for their size.
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Specifications Side By Side
| Klipsch RP-600M II | PS Audio Aspen FR5 | |
|---|---|---|
| Price | $449.99 per pair | $3,499 per pair |
| Ranked | #123 of 222 in Large Size Bookshelf Speakers | #121 of 222 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 41Hz (measured, Erin’s Audio Corner) | about 32.4Hz (measured, Spinorama data) |
| Bass Extension (-3dB) | 70Hz (measured, Erin’s Audio Corner) | 56.4Hz (measured, Erin’s Audio Corner via spinorama.org) |
| Dimensions | 15.7”H x 8”W x 12.5”D (398.8 x 203.2 x 317.5 mm) | 14.5H x 8W x 13D in |
| Impedance | 8 ohms nominal (3.5 ohms minimum above 80Hz, measured by Erin’s Audio Corner) | 6 ohms nominal, 5.6 ohms minimum |
| Sensitivity | 86dB (measured, Erin’s Audio Corner) | 83.5dB specified; 81.6dB measured |
| Drivers | 6.5” Cerametallic cone woofer, 1” titanium LTS vented tweeter with Tractrix horn | 2.5” planar tweeter, 6.5” woofer |
| Weight | 13 lbs (5.9 kg) each | 26.7 lbs (12.1 kg) each |
| Woofer Cabinet | ported | - |
| Spinorama Preference Score | 5.64 | 4.64 |
| Spinorama Preference Score with Perfect Sub | 7.77 | 6.26 |
| DIY Kit | No | No |
| Enclosure | - | 2-way passive with rear passive radiator |
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