Short answer: the Klipsch RP-600M II, if you are buying new, though neither ranks well in its class. The Klipsch RP-600M ranks higher than the Triangle Borea BR03 (#192 vs #198 of 222 bookshelf speakers) but is discontinued; its replacement, the Klipsch RP-600M II, is rated 3.7/5 at $449.99 and is still sold new. Both are rated below 3.0/5 among the 222 bookshelf speakers; for better sound, the ELAC Debut 3.0 DB63 ranks #49 at $469.99.
The RP-600M is discontinued, with a known midrange resonance. A peak around 300Hz colors lower vocals and its predicted in-room response has a 3 to 4dB dip, though both respond well to EQ. Its horn tweeter gives very even horizontal dispersion. Its bass rolls off around 73Hz (-3dB), so a subwoofer helps, and its treble is hot on-axis.
The Borea BR03 has deeper bass but a recessed midrange. It reaches 57Hz before falling 3dB from dual front ports, in a well-braced, solidly built cabinet. Erin’s Audio Corner found a dip in the upper mids and lower treble that makes voices sound thin, plus sibilance from 4 to 8kHz. Its impedance dips to about 4.2 ohms despite the 8 ohm label, so check your receiver.
Buy the Klipsch RP-600M II, the replacement for the discontinued Klipsch RP-600M; it is rated higher for sound quality than the Triangle Borea BR03.
Still deciding? The full Passive Home rankings cover every ranked option.
Measured Differences
- Tonal accuracy above the bass: with a subwoofer taking the low end, the Triangle Borea BR03 scores 6.4 against 5.6 for the Klipsch RP-600M on the Spinorama preference scale. Its frequency response and off-axis sound are smoother, so voices and instruments sound closer to the recording.
- Efficiency: the Triangle Borea BR03 is rated at 87.5 dB sensitivity against 85.2 dB for the Klipsch RP-600M, so it plays as loud with roughly two thirds of the amplifier power.
- Close enough not to matter: bass extension (40 Hz vs 42 Hz, 10 dB down).
Prices on this page were last checked November 14, 2026 at 6:17 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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| Klipsch RP-600M | Triangle Borea BR03 | |
|---|---|---|
| Price | $239.97 per pair Discontinued | $381.77 per pair |
| Ranked | #192 of 222 in Large Size Bookshelf Speakers | #198 of 222 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 40Hz (measured, Erin’s Audio Corner) | 42Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 73Hz (measured, Erin’s Audio Corner) | 57Hz (measured, Erin’s Audio Corner) |
| Dimensions | 15.7”H x 8”W x 11.9”D (398.8 x 203.2 x 302.3 mm) | 14.96”H x 8.11”W x 12.36”D |
| Impedance | 8 ohms nominal, 3.5 ohms minimum (measured, Erin’s Audio Corner) | 8 ohms nominal (manufacturer spec), 4.2 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 85.2dB (measured, Erin’s Audio Corner) | 87.5dB (measured at 2.83V/1m, Erin’s Audio Corner) |
| Drivers | 6.5” Cerametallic cone woofer, 1” titanium LTS vented tweeter with Tractrix horn | 6.5” natural cellulose midwoofer, 1” (25mm) EFS silk dome tweeter |
| Weight | 16.1 lbs (7.3 kg) each | 13.2 lbs (6 kg) each |
| Woofer Cabinet | ported | ported, dual front ports |
| Spinorama Preference Score | 3.66 | 4.03 |
| Spinorama Preference Score with Perfect Sub | 5.61 | 6.38 |
| DIY Kit | No | No |
| Crossover Frequency | - | 3600Hz |
| Recommended Power | - | 100W |
Where the Ratings Come From
- Klipsch RP-600M: Spinorama.org measurements and reviews by Erin’s Audio Corner, Audio Science Review and GR-Research.
- Triangle Borea BR03: Spinorama.org measurements and reviews by Erin’s Audio Corner.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
Related Speaker Comparisons
More worthwhile head-to-heads for Klipsch RP-600M: