Short answer: the JBL L100 Classic MKII if sound quality matters most, the Klipsch RP-600M II if price matters most. The JBL L100 Classic MKII ranks #95 of 222 bookshelf speakers, rated 3.9/5, at $5,599.90. The Klipsch RP-600M II ranks #123, rated 3.7/5, at $449.99, $5,149.91 cheaper.
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 4.64 for the JBL L100 Classic MKII. The catch: 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 JBL L100 Classic MKII is the deeper-bass pick. A big modern take on a classic studio monitor, with a 12 inch woofer, smooth even sound, deep bass and adjustable treble controls. Its bass reaches about 50.5Hz before falling 3dB, against 70Hz for the Klipsch RP-600M II. The tradeoff: The response has a moderate -0.30dB-per-octave downward tilt and the bass alignment is somewhat resonant at Q 1.64.
Buy the Klipsch RP-600M II when the price outweighs sound quality for you, and the JBL L100 Classic MKII when sound quality outweighs the price instead.
Still deciding? The full Passive Home rankings cover every ranked option.
Bookshelf speakers with a large horn tweeter, wide soundstage, high efficiency and bi-amp ready terminals.
A big modern take on a classic studio monitor, with a 12 inch woofer, smooth even sound, deep bass and adjustable treble controls.
Prices on this page were last checked October 31, 2026 at 7:11 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 II | JBL L100 Classic MKII | |
|---|---|---|
| Price | $449.99 per pair | $5,599.90 per pair |
| Ranked | #123 of 222 in Large Size Bookshelf Speakers | #95 of 222 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 41Hz (measured, Erin’s Audio Corner) | about 32.2Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 70Hz (measured, Erin’s Audio Corner) | 50.5Hz (measured, Erin’s Audio Corner via spinorama.org) |
| Dimensions | 15.7”H x 8”W x 12.5”D (398.8 x 203.2 x 317.5 mm) | 25.1H x 15.7W x 14.6D in |
| Impedance | 8 ohms nominal (3.5 ohms minimum above 80Hz, measured by Erin’s Audio Corner) | 4 ohms |
| Sensitivity | 86dB (measured, Erin’s Audio Corner) | 90dB |
| Drivers | 6.5” Cerametallic cone woofer, 1” titanium LTS vented tweeter with Tractrix horn | 1” titanium-dome tweeter, 5.25” midrange, 12” pulp-cone woofer |
| Weight | 13 lbs (5.9 kg) each | 58.9 lbs (26.7 kg) each |
| Woofer Cabinet | ported | - |
| Spinorama Preference Score | 5.64 | 4.64 |
| Spinorama Preference Score with Perfect Sub | 7.77 | 6.59 |
| DIY Kit | No | No |
| Enclosure | - | 3-way, front-ported |
| Country | - | United States (design) |
Related Speaker Comparisons
More top alternatives to JBL L100 Classic MKII: