Short answer: the Triangle Borea BR03, if you are buying new, though neither ranks well in its class. The Klipsch RP-600M ranks higher than it (#108 vs #110 of 131 bookshelf speakers, 2.9/5 vs 2.8/5) but is discontinued, so only consider it used; the Triangle Borea BR03 is still sold new at $398. Both are rated below 3.0/5 among the 131 bookshelf speakers; for better sound, the Monolith Encore B6 ranks #63 at $360.
What the Klipsch RP-600M does well: More linear horizontal dispersion than the updated RP-600M II: as you move side-to-side, the tonal character changes less, a genuine advantage for off-axis listening consistency. The catch: A strong, annoying resonance in the lower vocal range around 300Hz stands out clearly (though it can be EQ’d out).
The case for the Triangle Borea BR03: Bass output is genuinely decent for the price: measured extension reaches F3 57Hz/F10 42Hz, which the reviewer had no real complaints about. The catch: A noticeable mid-range suckout, most pronounced in the upper mid-range/lower treble, that the reviewer attributes to cabinet resonances and driver breakup rather than a deliberate voicing choice: it makes vocals and instruments sound recessed and thin rather than warm.
Buy the Triangle Borea BR03, since the Klipsch RP-600M is discontinued and only worth hunting down used.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| Klipsch RP-600M | Triangle Borea BR03 | |
|---|---|---|
| Price | $377.99 per pair Discontinued | $398.00 per pair |
| Ranked | #108 of 131 in Large Size Bookshelf Speakers | #110 of 131 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 |
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Prices on this page were last checked September 29, 2026 at 3:43 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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The Two Speakers In Full
Klipsch RP-600M: $377.99 per pair Discontinued Amazon eBay
Newer model: the Klipsch RP-600M II, ranked higher, rated 3.7/5.
Pros: More linear horizontal dispersion than the updated RP-600M II: as you move side-to-side, the tonal character changes less, a genuine advantage for off-axis listening consistency. Takes exceptionally well to EQ correction (miniDSP or similar), letting a knowledgeable owner fix its tonal shortcomings without needing to upgrade. Standard 6.5” woofer/horn-tweeter two-way design with reasonably gradual bass rolloff (F3 ~70Hz, F10 ~40Hz) rather than a steep vented-enclosure cutoff. Measured bass extension of 73Hz (-3dB), with a measured sensitivity of 85.2dB.
Cons: A strong, annoying resonance in the lower vocal range around 300Hz stands out clearly (though it can be EQ’d out). Overall tonal balance is notably less neutral than the newer RP-600M II, with a roughly 3-4dB suckout in the estimated in-room response. The waveguide doesn’t extend flush to the baffle edge, increasing diffraction compared to the redesigned version. Klipsch’s marketed sensitivity spec (about 96dB) is a half-space, in-room-style rating roughly 9dB above the true anechoic figure (closer to 85-86dB), which can mislead buyers comparing spec sheets. Elevated treble on-axis, similar to its successor, benefits from toe-out or careful placement. Vertical listening tolerance is limited to about ±10° from the tweeter axis. Still needs a subwoofer for real bass weight; a boost around 120Hz gives kick drums their “tambour” without the underlying “meat.”. Discontinued.
Full Klipsch RP-600M review and specifications →
| Bass Extension (-10dB) | 40Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 73Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 15.7”H x 8”W x 11.9”D (398.8 x 203.2 x 302.3 mm) |
| Drivers | 6.5” Cerametallic cone woofer, 1” titanium LTS vented tweeter with Tractrix horn |
| Impedance | 8 ohms nominal, 3.5 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 85.2dB (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | 3.66 |
| Spinorama Preference Score with Perfect Sub | 5.61 |
| Weight | 16.1 lbs (7.3 kg) each |
| Woofer Cabinet | ported |
- Links
- Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner: The Truth about Klipsch’s “NEW” Sound. RP-600M Update. More from Erin’s Audio Corner →
- Erin’s Audio Corner Website Klipsch RP-600M
- GR-Research: We Bought The "NEW" RP-600M II Is KLIPSCH Listening?! More from GR-Research →
- Audio Science Review Measurements More from Audio Science Review →
- Audio Science Review Measurements (spinorama.org)
- Head-to-Head Comparisons
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Triangle Borea BR03: $398.00 per pair Amazon eBay
Pros: Bass output is genuinely decent for the price: measured extension reaches F3 57Hz/F10 42Hz, which the reviewer had no real complaints about. Dual front-firing ports and a well-stuffed, well-braced cabinet. Solid build quality overall. Measured bass extension of 57Hz (-3dB), with a measured sensitivity of 87.5dB.
Cons: A noticeable mid-range suckout, most pronounced in the upper mid-range/lower treble, that the reviewer attributes to cabinet resonances and driver breakup rather than a deliberate voicing choice: it makes vocals and instruments sound recessed and thin rather than warm. Sibilance in the 4-8kHz region shows up on every track the reviewer tried. Measured minimum impedance dips to about 4.2 ohms (with an even lower EPDR), despite the speaker and its own rear panel being labeled 8 ohms: worth knowing if you’re planning to drive these with a receiver/AVR that assumes an 8-ohm nominal load. The reviewer is upfront that this speaker has a devoted following among other reviewers, but says he specifically doesn’t hear what they hear and wants people who own it to trust their own ears rather than assume something’s wrong with their hearing if they don’t love it either.
Full Triangle Borea BR03 review and specifications →
| Bass Extension (-10dB) | 42Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 57Hz (measured, Erin’s Audio Corner) |
| Crossover Frequency | 3600Hz |
| DIY Kit | No |
| Dimensions | 14.96”H x 8.11”W x 12.36”D |
| Drivers | 6.5” natural cellulose midwoofer, 1” (25mm) EFS silk dome tweeter |
| Impedance | 8 ohms nominal (manufacturer spec), 4.2 ohms minimum (measured, Erin’s Audio Corner) |
| Recommended Power | 100W |
| Sensitivity | 87.5dB (measured at 2.83V/1m, Erin’s Audio Corner) |
| Spinorama Preference Score | 4.03 |
| Spinorama Preference Score with Perfect Sub | 6.38 |
| Weight | 13.2 lbs (6 kg) each |
| Woofer Cabinet | ported, dual front ports |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Triangle Borea BR03 vs B&W 805S
- Triangle Borea BR03 vs Wharfedale Diamond 9.1
- Triangle Borea BR03 vs Sonus Faber Lumina II Amator
- Triangle Borea BR03 vs Aperion Audio Verus V8B
- Triangle Borea BR03 vs KEF Q350
- Triangle Borea BR03 vs Emotiva Airmotiv B2+
- Triangle Borea BR03 vs Sonus Faber Sonetto II G2
- Triangle Borea BR03 vs ATC SCM19
- See all 51 comparisons