Short answer: the Klipsch Heresy IV, if you are buying new. The KEF R5 Meta ranks higher than it (#14 vs #220 of 226 floorstanding speakers, 4.6/5 vs 2.3/5) but is discontinued, so only consider it used; the Klipsch Heresy IV is still sold new at $3,599.98.
The case for the Klipsch Heresy IV: Very high 94.5dB/2.83V/1m sensitivity in Erin’s anechoic measurement (well below Klipsch’s 99dB in-room claim, but still excellent) and strong short-term output from a 12-inch woofer plus horn-loaded midrange and tweeter. The catch: Erin measured a 77Hz F3 and response rolling away near 100Hz in-room, so a subwoofer is required for modern full-range reproduction.
The KEF R5 Meta is the more accurate, deeper-bass pick. 12th generation 5” Uni-Q coaxial driver array with Metamaterial Absorption Technology (MAT) delivers remarkably smooth, controlled horizontal (±50°) and vertical directivity with near-identical off-axis tracking. Its measured preference score, a predictor of how neutral it sounds, is 6.33 against 2.27 for the Klipsch Heresy IV. Its bass reaches about 52Hz before falling 3dB, against 77Hz for the Klipsch Heresy IV. The catch: Low-frequency extension (F3 of 52Hz, F10 of 38Hz) requires pairing with a dedicated subwoofer crossed over at 80Hz for high-output home theater or bass-heavy music performance.
Buy the Klipsch Heresy IV if you want one new; the KEF R5 Meta is discontinued, so only look for it used.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| Klipsch Heresy IV | KEF R5 Meta | |
|---|---|---|
| Price | $3,599.98 per pair | $3,999.99 per pair Discontinued |
| Ranked | #220 of 226 in Large Size Floorstanding Speakers | #14 of 226 in Large Size Floorstanding Speakers |
| Bass Extension (-3dB) | 77Hz (measured, Erin’s Audio Corner) | 52Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 50.0Hz (measured, Erin’s Audio Corner) | 38Hz (measured, Erin’s Audio Corner) |
| Sensitivity | 94.5dB/2.83V/1m (measured, Erin’s Audio Corner) | 86dB (measured average, Erin’s Audio Corner) |
| Impedance | Approximately 4 ohms minimum (measured, Erin’s Audio Corner) | 4 ohms nominal |
| Drivers | 1” horn-loaded tweeter; 1.75” horn-loaded midrange; 12” woofer | 1 in. vented aluminum dome tweeter with MAT, 5 in. aluminum cone midrange, two 5.25 in. hybrid aluminum cone woofers |
| Dimensions | 24.8”H x 15.6”W x 13.3”D | 42.2”H x 10.7”W x 13.6”D (1073 x 273 x 346 mm) |
| Weight | 45 lbs (20.4 kg) each | 54 lbs (24.5 kg) each |
| Woofer Cabinet | ported, rear | ported, rear |
| Spinorama Preference Score | 2.27 | 6.33 |
| Spinorama Preference Score with Perfect Sub | 5.02 | 8.07 |
| DIY Kit | No | No |
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Prices on this page were last checked October 9, 2026 at 8:01 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.
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The Two Speakers In Full
Klipsch Heresy IV: $3,599.98 per pair Amazon Crutchfield eBay
Same family: the Klipsch Forte IV (larger floorstanding, ranked higher, rated 4/5), the Klipsch Cornwall IV (larger floorstanding, ranked higher, estimated 2.8/5), the Klipsch La Scala AL6 (larger floorstanding, ranked higher, estimated 2.8/5) and the Klipsch Klipschorn AK7 (larger floorstanding, ranked higher, estimated 3/5).
Pros: Very high 94.5dB/2.83V/1m sensitivity in Erin’s anechoic measurement (well below Klipsch’s 99dB in-room claim, but still excellent) and strong short-term output from a 12-inch woofer plus horn-loaded midrange and tweeter. The compact, furniture-grade Heritage cabinet is easier to place than most high-efficiency designs, and dynamics at moderate levels can sound lively. A stable four-ohm-capable amplifier can produce substantial SPL with relatively little voltage. Measured bass extension of 77Hz (-3dB), with a measured sensitivity of 94.5dB.
Cons: Erin measured a 77Hz F3 and response rolling away near 100Hz in-room, so a subwoofer is required for modern full-range reproduction. The impedance dips to about 4 ohms, reducing the practical amplifier advantage implied by its sensitivity. Pronounced directivity mismatch at the driver transitions, impedance/response resonances and elevated distortion spikes around the crossover remain audible concerns that EQ cannot fully solve. At 102dB Erin measured roughly 1.5dB midband compression; at 96dB distortion rises around crossover. Performance is difficult to justify at the price, and Erin explicitly did not recommend it.
Full Klipsch Heresy IV review and specifications →
| Bass Extension (-10dB) | 50.0Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 77Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 24.8”H x 15.6”W x 13.3”D |
| Drivers | 1” horn-loaded tweeter; 1.75” horn-loaded midrange; 12” woofer |
| Impedance | Approximately 4 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 94.5dB/2.83V/1m (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | 2.27 |
| Spinorama Preference Score with Perfect Sub | 5.02 |
| Weight | 45 lbs (20.4 kg) each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
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KEF R5 Meta: $3,999.99 per pair Discontinued eBay
Same family: the KEF R3 Meta (bookshelf, rated 4.6/5), the KEF R7 Meta (larger floorstanding, ranked lower, estimated 4.6/5), the KEF R11 Meta (larger floorstanding, ranked lower, rated 4.4/5), the KEF R2 Meta (smaller center, rated 4.3/5) and the KEF R6 Meta (larger center, rated 4.2/5).
Pros: 12th generation 5” Uni-Q coaxial driver array with Metamaterial Absorption Technology (MAT) delivers remarkably smooth, controlled horizontal (±50°) and vertical directivity with near-identical off-axis tracking. Exceptional frequency response linearity through the midrange and treble that takes extremely well to minor parametric EQ adjustments. Constrained Layer Damping cabinet construction and flexible rear ports minimize enclosure resonances and port turbulence. Deliberately tuned low-frequency roll-off profile permits boundary-adjacent room placement near front walls without boomy acoustic buildup. Measured bass extension of 52Hz (-3dB), with a measured sensitivity of 86dB.
Cons: Low-frequency extension (F3 of 52Hz, F10 of 38Hz) requires pairing with a dedicated subwoofer crossed over at 80Hz for high-output home theater or bass-heavy music performance. High-frequency radiation above 7kHz shows a mild on-axis taper (1-2dB downward slope), performing best when listened to 10-20° off-axis. Moderate sensitivity (~86dB SPL average) requires a clean, robust 4-ohm capable amplifier to drive high dynamic peaks without clipping. Discontinued.
Full KEF R5 Meta review and specifications →
| Bass Extension (-10dB) | 38Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 52Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 42.2”H x 10.7”W x 13.6”D (1073 x 273 x 346 mm) |
| Drivers | 1 in. vented aluminum dome tweeter with MAT, 5 in. aluminum cone midrange, two 5.25 in. hybrid aluminum cone woofers |
| Impedance | 4 ohms nominal |
| Sensitivity | 86dB (measured average, Erin’s Audio Corner) |
| Spinorama Preference Score | 6.33 |
| Spinorama Preference Score with Perfect Sub | 8.07 |
| Weight | 54 lbs (24.5 kg) each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons