Short answer: the KEF R5 Meta for controlled vertical directivity, the JBL HDI-3600 for sensitivity and low midrange distortion. The JBL offers high 90dB sensitivity and very low midrange distortion, but a wide shelving-down above 2kHz affects its in-room response and its vertical dispersion is a bigger problem than horizontal. The KEF’s Uni-Q tracks near-identically off-axis at about +/-50 degrees, though its F3 of 52Hz and F10 of 38Hz favor a subwoofer.
Buy the JBL HDI-3600 new; the KEF R5 Meta is no longer sold new, so it only makes sense as a used find.
Looking for alternatives? See the complete Passive Home rankings.
Specifications Side By Side
| KEF R5 Meta | JBL HDI-3600 | |
|---|---|---|
| Price | $3,999.99 per pair Discontinued | $3800 per pair |
| Ranked | #9 of 74 in Large Size Floorstanding Speakers | #31 of 74 in Large Size Floorstanding Speakers |
| Bass Extension (-10dB) | 38Hz (measured, Erin’s Audio Corner) | 62Hz - the on-axis curve also shows an unusual step/dip around 40-55Hz that may be a near-field-scan artifact for this tower (measured, Audio Science Review) |
| Bass Extension (-3dB) | 52Hz (measured, Erin’s Audio Corner) | 78Hz - the on-axis curve also shows an unusual step/dip around 40-55Hz that may be a near-field-scan artifact for this tower (measured, Audio Science Review) |
| Dimensions | 42.2”H x 10.7”W x 13.6”D (1073 x 273 x 346 mm) | 40.5”H x 10.2”W x 13.5”D (1029 x 260 x 343 mm) |
| Impedance | 4 ohms nominal | 4 ohms nominal |
| Sensitivity | 86dB (measured average, Erin’s Audio Corner) | 89.5dB (2.83V/1m, measured, Audio Science Review) |
| Drivers | 1 in. vented aluminum dome tweeter with MAT, 5 in. aluminum cone midrange, two 5.25 in. hybrid aluminum cone woofers | 2410H-2 1” compression driver, 3x 6.5” Advanced Aluminum Matrix woofers |
| Weight | 54 lbs (24.5 kg) each | 61.7 lbs (28 kg) each |
| Woofer Cabinet | ported, rear | ported, dual rear-firing |
| Spinorama Preference Score | 6.33 | 4.64 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 8.07 | 6.95 (spinorama.org) |
| DIY Kit | No | No |
| Frequency Response | - | 38Hz - 30kHz (+/-3dB) (Manufacturer specified) |
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More worthwhile head-to-heads for KEF R5 Meta:
- KEF Blade Two Meta vs KEF R5 Meta
- MoFi SourcePoint 888 vs KEF R5 Meta
- Revel F328Be vs KEF R5 Meta
- Revel F226Be vs KEF R5 Meta
- KEF R5 Meta vs JBL 4367
Prices on this page were last checked October 3, 2026 at 10:26 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.
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The Two Speakers In Full
KEF R5 Meta: $3,999.99 per pair Discontinued eBay
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
JBL HDI-3600: $3800 per pair Audio Advice eBay
Pros: CEA2034 spinorama shows a fairly even on-axis response and flat overall frequency response, with high 90dB sensitivity and very low distortion through the midrange. Triple 6.5” Advanced Aluminum Matrix woofers and a 1” compression driver in JBL’s HDI waveguide. Measured bass extension of 78Hz (-3dB), with a measured sensitivity of 89.5dB.
Cons: A wide shelving-down above 2kHz affects the in-room response, and vertical dispersion is a bigger issue than horizontal: the reviewer noted the dip is wider here than on the smaller HDI-1600, making it more audible. Narrow vertical sweet spot means careful listener-height positioning matters more than usual.
Full JBL HDI-3600 review and specifications →
| Bass Extension (-10dB) | 62Hz - the on-axis curve also shows an unusual step/dip around 40-55Hz that may be a near-field-scan artifact for this tower (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 78Hz - the on-axis curve also shows an unusual step/dip around 40-55Hz that may be a near-field-scan artifact for this tower (measured, Audio Science Review) |
| DIY Kit | No |
| Dimensions | 40.5”H x 10.2”W x 13.5”D (1029 x 260 x 343 mm) |
| Drivers | 2410H-2 1” compression driver, 3x 6.5” Advanced Aluminum Matrix woofers |
| Frequency Response | 38Hz - 30kHz (+/-3dB) (Manufacturer specified) |
| Impedance | 4 ohms nominal |
| Sensitivity | 89.5dB (2.83V/1m, measured, Audio Science Review) |
| Spinorama Preference Score | 4.64 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 6.95 (spinorama.org) |
| Weight | 61.7 lbs (28 kg) each |
| Woofer Cabinet | ported, dual rear-firing |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons