Short answer: the Klipsch RP-600M II. It ranks #74 of 130 bookshelf speakers by sound quality at $449.99; the Triad In-Room Gold LCR ranks #114 and costs $6600, so there is little reason to consider the other one.
What the Klipsch RP-600M II offers: Redesigned waveguide extends flush to the baffle edge, reducing diffraction compared to the original RP-600M. Roughly 10-20° wider horizontal radiation than the original, giving more soundstage envelopment while retaining precise imaging. A major step up in overall tonal neutrality compared to the original RP-600M, largely eliminating that model’s midrange resonance issues. Unusually, sounds better with the grille on - the grille smooths out the elevated treble rather than degrading the sound, a rare trait among speakers the reviewer has tested. More refined back-panel hardware, including anodized binding posts and jumper cables for optional bi-amping. Responds well to EQ correction (verified using measurement software and a miniDSP), letting the on-axis response be made genuinely linear. Watch for: On-axis, the treble runs notably hot - even hotter than the original RP-600M in some respects - and needs about 20° of toe-out or the grille installed to sound balanced. Horizontal dispersion is very slightly less linear across angles than the original RP-600M, a minor trade-off for the wider overall radiation pattern. Klipsch’s marketed sensitivity (about 94.5dB) is, like the original, a half-space rating roughly 9dB above the anechoic reality (closer to 85-86dB). In-room bass rolls off around 60Hz in practice, and a 120Hz boost paired with a midrange scoop gives kick drums their “tambour” without real low-end weight - a subwoofer is still recommended. Vertical listening tolerance is limited to about ±10° from the tweeter axis. Toeing the speaker out for better on-axis tonality (rather than using the grille) introduces slightly more diffuse imaging from added sidewall reflections.
What the Triad In-Room Gold LCR offers: Built for serious home theater output: the sealed three-way layout uses dual 8.5-inch woofers, a 5.5-inch midrange and a 1-inch fabric dome. At 86dB/1m, Erin measured under 1% distortion to 50Hz; at 96dB it remained under 1% only above about 80Hz, supporting Triad’s intended 80Hz subwoofer crossover. Compression and 32-band multitone distortion were both low, even at high playback levels. Broad horizontal coverage (about +/-70 to 80 degrees through the midrange) and a roughly +/-20-degree vertical window give a generous listening area. It can be made substantially more linear with EQ, and its 89dB measured sensitivity is suitable for a capable AVR or power amplifier. Watch for: At $6,600/pair, Erin found the raw response and value hard to defend without EQ: a 100-300Hz dip makes male vocals thin, a 1kHz dip adds hollowness, and a 4-5kHz rise makes sibilants harsh. The directivity begins to narrow above about 5kHz as the tweeter beams. Despite its dual woofers, it requires a subwoofer; Erin measured F3 57Hz and F10 40Hz. Load dips below 3 ohms, so it needs an amplifier stable into 4 ohms. Plain, utilitarian styling will not suit everyone.
Buy the Klipsch RP-600M II. It ranks higher for sound quality than the Triad In-Room Gold LCR and costs less, so there is no real case for the other one.
The Triad In-Room Gold LCR is not a sound-quality pick. It sits near the bottom of the 130 bookshelf speakers; there are better options higher up.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| Klipsch RP-600M II | Triad In-Room Gold LCR | |
|---|---|---|
| Price | $449.99 per pair | $6,600 per pair |
| Ranked | #74 of 130 in Large Size Bookshelf Speakers | #114 of 130 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 41Hz (measured, Erin's Audio Corner) | 40Hz (measured, Erin's Audio Corner) |
| Bass Extension (-3dB) | 70Hz (measured, Erin's Audio Corner) | 57Hz (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) | 29"H x 10.75"W x 11.375"D |
| Impedance | 8 ohms nominal (3.5 ohms minimum above 80Hz, measured by Erin's Audio Corner) | 4 ohms nominal; dips below 3 ohms (measured, Erin's Audio Corner) |
| Sensitivity | 86dB (measured, Erin's Audio Corner) | 88.9dB (2.83V/1m, measured, Erin's Audio Corner; 92dB manufacturer specified) |
| Drivers | 6.5" Cerametallic cone woofer, 1" titanium LTS vented tweeter with Tractrix horn | Two 8.5" metal woofers, 5.5" paper/fiber midrange, 1" fabric-dome tweeter |
| Weight | 13 lbs (5.9 kg) each | 54.9 lbs (24.9 kg) each |
| Woofer Cabinet | ported | sealed / acoustic suspension |
| Spinorama Preference Score | 4.75 | 3.13 |
| Spinorama Preference Score with Perfect Sub | 6.88 | 5.50 |
| Power Handling | - | 100W - 450W recommended (manufacturer specified) |
| Frequency Response | - | 50Hz - 20kHz +/-3dB (manufacturer specified) |
| Country | - | USA (handcrafted, manufacturer specified) |
Related Speaker Comparisons
How Klipsch RP-600M II compares with other leading options:
- Klipsch RP-600M II vs KEF Reference 1 Meta
- Klipsch RP-600M II vs GR-Research NX-Studio
- Klipsch RP-600M II vs March Audio Sointuva AWG
- Klipsch RP-600M II vs AsciLab C6B
- Klipsch RP-600M II vs Audio First Cadentia 3
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The Two Speakers In Full
Klipsch RP-600M II: $449.99 per pair Amazon eBay
Pros: Redesigned waveguide extends flush to the baffle edge, reducing diffraction compared to the original RP-600M. Roughly 10-20° wider horizontal radiation than the original, giving more soundstage envelopment while retaining precise imaging. A major step up in overall tonal neutrality compared to the original RP-600M, largely eliminating that model’s midrange resonance issues. Unusually, sounds better with the grille on - the grille smooths out the elevated treble rather than degrading the sound, a rare trait among speakers the reviewer has tested. More refined back-panel hardware, including anodized binding posts and jumper cables for optional bi-amping. Responds well to EQ correction (verified using measurement software and a miniDSP), letting the on-axis response be made genuinely linear. Measured bass extension of 70Hz (-3dB), with a measured sensitivity of 86dB.
Cons: On-axis, the treble runs notably hot - even hotter than the original RP-600M in some respects - and needs about 20° of toe-out or the grille installed to sound balanced. Horizontal dispersion is very slightly less linear across angles than the original RP-600M, a minor trade-off for the wider overall radiation pattern. Klipsch’s marketed sensitivity (about 94.5dB) is, like the original, a half-space rating roughly 9dB above the anechoic reality (closer to 85-86dB). In-room bass rolls off around 60Hz in practice, and a 120Hz boost paired with a midrange scoop gives kick drums their “tambour” without real low-end weight - a subwoofer is still recommended. Vertical listening tolerance is limited to about ±10° from the tweeter axis. Toeing the speaker out for better on-axis tonality (rather than using the grille) introduces slightly more diffuse imaging from added sidewall reflections.
Full Klipsch RP-600M II review and specifications →
| Bass Extension (-10dB) | 41Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 70Hz (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) |
| Drivers | 6.5" Cerametallic cone woofer, 1" titanium LTS vented tweeter with Tractrix horn |
| Impedance | 8 ohms nominal (3.5 ohms minimum above 80Hz, measured by Erin's Audio Corner) |
| Sensitivity | 86dB (measured, Erin's Audio Corner) |
| Spinorama Preference Score | 4.75 |
| Spinorama Preference Score with Perfect Sub | 6.88 |
| Weight | 13 lbs (5.9 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 II
- GR-Research: We Bought The "NEW" RP-600M II Is KLIPSCH Listening?! More from GR-Research →
- Erin’s Audio Corner: 5 AWESOME SPEAKERS Under $1000 You Won’t Regret
- Erin’s Audio Corner Measurements (spinorama.org)
- Head-to-Head Comparisons
- Klipsch RP-600M II vs Dynaudio Emit 20
- Klipsch RP-600M II vs Philharmonic BMR Monitor
- Klipsch RP-600M II vs JBL Studio 630
- Klipsch RP-600M II vs Behringer B2030P
- Klipsch RP-600M II vs Ascend CBM-170 SE2
- Klipsch RP-600M II vs Infinity Reference R162
- Klipsch RP-600M II vs GR-Research X-LS Encore
- Klipsch RP-600M II vs Infinity IL10
- See all 72 comparisons
Triad In-Room Gold LCR: $6,600 per pair Triad Authorized Dealer eBay
Pros: Built for serious home theater output: the sealed three-way layout uses dual 8.5-inch woofers, a 5.5-inch midrange and a 1-inch fabric dome. At 86dB/1m, Erin measured under 1% distortion to 50Hz; at 96dB it remained under 1% only above about 80Hz, supporting Triad’s intended 80Hz subwoofer crossover. Compression and 32-band multitone distortion were both low, even at high playback levels. Broad horizontal coverage (about +/-70 to 80 degrees through the midrange) and a roughly +/-20-degree vertical window give a generous listening area. It can be made substantially more linear with EQ, and its 89dB measured sensitivity is suitable for a capable AVR or power amplifier. Measured bass extension of 57Hz (-3dB), with a measured sensitivity of 88.9dB.
Cons: At $6,600/pair, Erin found the raw response and value hard to defend without EQ: a 100-300Hz dip makes male vocals thin, a 1kHz dip adds hollowness, and a 4-5kHz rise makes sibilants harsh. The directivity begins to narrow above about 5kHz as the tweeter beams. Despite its dual woofers, it requires a subwoofer; Erin measured F3 57Hz and F10 40Hz. Load dips below 3 ohms, so it needs an amplifier stable into 4 ohms. Plain, utilitarian styling will not suit everyone.
Full Triad In-Room Gold LCR review and specifications →
| Bass Extension (-10dB) | 40Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 57Hz (measured, Erin's Audio Corner) |
| Country | USA (handcrafted, manufacturer specified) |
| Dimensions | 29"H x 10.75"W x 11.375"D |
| Drivers | Two 8.5" metal woofers, 5.5" paper/fiber midrange, 1" fabric-dome tweeter |
| Frequency Response | 50Hz - 20kHz +/-3dB (manufacturer specified) |
| Impedance | 4 ohms nominal; dips below 3 ohms (measured, Erin's Audio Corner) |
| Power Handling | 100W - 450W recommended (manufacturer specified) |
| Sensitivity | 88.9dB (2.83V/1m, measured, Erin's Audio Corner; 92dB manufacturer specified) |
| Spinorama Preference Score | 3.13 |
| Spinorama Preference Score with Perfect Sub | 5.50 |
| Weight | 54.9 lbs (24.9 kg) each |
| Woofer Cabinet | sealed / acoustic suspension |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons