Short answer: the Klipsch RP-600M II. It ranks #124 of 223 bookshelf speakers by sound quality, rated 3.7/5, at $449.99; the Triad In-Room Gold LCR ranks #204, rated 2.7/5, and costs $6,600, so there is little reason to consider the other one.
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 4.04 for the Triad In-Room Gold LCR. 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 Triad In-Room Gold LCR is the deeper-bass pick. A sealed three way home theater speaker with dual 8.5 inch woofers, very low distortion at high volume and broad coverage. Its bass reaches about 57Hz before falling 3dB, against 70Hz for the Klipsch RP-600M II. Watch for: At $6600/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.
Buy the Klipsch RP-600M II. It is rated higher for sound quality than the Triad In-Room Gold LCR and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
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 sealed three way home theater speaker with dual 8.5 inch woofers, very low distortion at high volume and broad coverage.
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Specifications Side By Side
| Klipsch RP-600M II | Triad In-Room Gold LCR | |
|---|---|---|
| Price | $449.99 per pair | $6,600 per pair |
| Ranked | #124 of 223 in Large Size Bookshelf Speakers | #204 of 223 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 | 5.64 | 4.04 |
| Spinorama Preference Score with Perfect Sub | 7.77 | 6.41 |
| DIY Kit | No | No |
| Power Handling | - | 100W - 450W recommended (manufacturer specified) |
| Frequency Response | - | 50Hz - 20kHz +/-3dB (manufacturer specified) |
| Country | - | USA (handcrafted, manufacturer specified) |
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 Triad In-Room Gold LCR (measured by Erin’s Audio Corner), via spinorama.org.
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