Short answer: the GR-Research NX-Bravo if sound quality matters most, the Klipsch RP-600M II if price matters most. The GR-Research NX-Bravo ranks #26 of 223 bookshelf speakers, rated 4.4/5, at $1,540. The Klipsch RP-600M II ranks #124, rated 3.7/5, at $449.99, $1,090.01 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 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.
The GR-Research NX-Bravo is the better-sounding choice. A bookshelf speaker with unusually wide dispersion vertically and horizontally, very clean bass decay, and a neutral midrange that is easy to drive. The tradeoff: Pointed straight on-axis there’s a deliberate ~5dB high-frequency bump meant to compensate for narrowing dispersion off-axis; it needs about 15° of toe-out (aimed to cross behind the listener) to sound balanced, which won’t suit every room layout.
Buy the Klipsch RP-600M II if the price is the priority over sound quality, or the GR-Research NX-Bravo if sound quality is the priority over 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 bookshelf speaker with unusually wide dispersion vertically and horizontally, very clean bass decay, and a neutral midrange that is easy to drive.
Prices on this page were last checked October 29, 2026 at 4:42 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 | GR-Research NX-Bravo | |
|---|---|---|
| Price | $449.99 per pair | $1540 per pair kit with finished cabinets (assembly required) |
| Ranked | #124 of 223 in Large Size Bookshelf Speakers | #26 of 223 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 41Hz (measured, Erin’s Audio Corner) | 45Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 70Hz (measured, Erin’s Audio Corner) | 77Hz (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) | 14”H x 7.5”W x 11.5”D (355.6 x 190.5 x 292.1 mm) |
| Impedance | 8 ohms nominal (3.5 ohms minimum above 80Hz, measured by Erin’s Audio Corner) | 6 ohms nominal, 5 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 86dB (measured, Erin’s Audio Corner) | 84.8dB (measured, Erin’s Audio Corner) |
| Drivers | 6.5” Cerametallic cone woofer, 1” titanium LTS vented tweeter with Tractrix horn | GR-Research M165 6.5” paper cone, non-resonant polymer frame woofer, GR-Research Neo3 Planar Magnetic Ribbon deep rear cup tweeter |
| Weight | 13 lbs (5.9 kg) each | 16.1 lbs (7.3 kg) each |
| Woofer Cabinet | ported | ported |
| Spinorama Preference Score | 5.64 | 5.18 |
| Spinorama Preference Score with Perfect Sub | 7.77 | 7.52 |
| DIY Kit | No | Yes |
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.
Measurement data: Klipsch RP-600M II (measured by Erin’s Audio Corner) and GR-Research NX-Bravo (measured by Erin’s Audio Corner), via spinorama.org.
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