Short answer: the Klipsch RP-600M II for better sound quality, the DIYSG HT-10 for the lower price. The Klipsch RP-600M II ranks #74 of 130 bookshelf speakers at $449.99. The DIYSG HT-10 ranks #97 at $248, $201.99 cheaper.
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 DIYSG HT-10 offers: A distinct kit design from DIY Sound Group’s HTM-12 v2, a 10” ported LCR/surround box built around a Celestion woofer and compression tweeter. Sound-power smoothness of 0.197 is solid for a budget DIY kit. Watch for: On-axis deviation of 0.537dB is rough, with a pronounced -0.43dB per octave downward tilt giving it a notably dark tonal character, a somewhat resonant bass-alignment Q of 1.76, and the Harman in-room bass extension estimate is a modest 56Hz for a 10” woofer. It ships as a flat-pack cabinet kit requiring assembly, sold in a minimum order of two units.
Buy the Klipsch RP-600M II if sound quality is the priority over the price, or the DIYSG HT-10 if the price is the priority over sound quality.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| Klipsch RP-600M II | DIYSG HT-10 | |
|---|---|---|
| Price | $449.99 per pair | $496 per pair |
| Ranked | #74 of 130 in Large Size Bookshelf Speakers | #97 of 130 in Large Size Bookshelf Speakers |
| 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) | 15W x 19.5H x 9D in |
| Impedance | 8 ohms nominal (3.5 ohms minimum above 80Hz, measured by Erin's Audio Corner) | - |
| Sensitivity | 86dB (measured, Erin's Audio Corner) | - |
| Drivers | 6.5" Cerametallic cone woofer, 1" titanium LTS vented tweeter with Tractrix horn | Celestion TF1020 10" woofer, Celestion CDX1-1445DA compression tweeter |
| Weight | 13 lbs (5.9 kg) each | approx. 28 lbs (12.7 kg) assembled |
| Woofer Cabinet | ported | - |
| Spinorama Preference Score | 4.75 | 3.39 |
| Spinorama Preference Score with Perfect Sub | 6.88 | 5.94 |
| Enclosure | - | Ported, MDF flat-pack cabinet kit |
| Country | - | United States (kit design) |
Related Speaker Comparisons
How Klipsch RP-600M II compares with other leading options:
- Klipsch RP-600M II vs TAD Compact Reference One (CR1TX)
- Klipsch RP-600M II vs Perlisten S4b
- 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
Prices on this page were last checked September 16, 2026 at 12:41 AM 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.
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 Aoshida Audio Musician Knight I V2
- Klipsch RP-600M II vs Philharmonic BMR Monitor
- Klipsch RP-600M II vs JBL 708i
- Klipsch RP-600M II vs JBL Studio 630
- Klipsch RP-600M II vs PS Audio Aspen FR5
- Klipsch RP-600M II vs Behringer B2030P
- Klipsch RP-600M II vs Theory Audio sb25
- See all 116 comparisons
DIYSG HT-10: $496 per pair DIY Sound Group eBay
Pros: A distinct kit design from DIY Sound Group’s HTM-12 v2, a 10” ported LCR/surround box built around a Celestion woofer and compression tweeter. Sound-power smoothness of 0.197 is solid for a budget DIY kit.
Cons: On-axis deviation of 0.537dB is rough, with a pronounced -0.43dB per octave downward tilt giving it a notably dark tonal character, a somewhat resonant bass-alignment Q of 1.76, and the Harman in-room bass extension estimate is a modest 56Hz for a 10” woofer. It ships as a flat-pack cabinet kit requiring assembly, sold in a minimum order of two units.
Full DIYSG HT-10 review and specifications →
| Country | United States (kit design) |
|---|---|
| Dimensions | 15W x 19.5H x 9D in |
| Drivers | Celestion TF1020 10" woofer, Celestion CDX1-1445DA compression tweeter |
| Enclosure | Ported, MDF flat-pack cabinet kit |
| Spinorama Preference Score | 3.39 |
| Spinorama Preference Score with Perfect Sub | 5.94 |
| Weight | approx. 28 lbs (12.7 kg) assembled |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons