Short answer: the SVS Ultra Evolution Pinnacle. It ranks #53 of 73 floorstanding speakers by sound quality, rated 3.8/5, at $2,499; the Klipsch Heresy IV ranks #71, rated 2.3/5, and costs $3,198, so there is not much of a tradeoff to weigh.
Why pick 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. Watch for: Erin measured a 77Hz F3 and response rolling away near 100Hz in-room, so a subwoofer is required for modern full-range reproduction.
The case for the SVS Ultra Evolution Pinnacle: Flagship three-way tower with a diamond-coated tweeter, dual midranges and four force-balanced 8-inch woofers. The tradeoff: The 5.25-to-8-inch transitions and complex array do not produce class-leading smoothness: 0.184 on-axis, 0.226 predicted in-room and 3.64 directivity-index consistency.
Buy the SVS Ultra Evolution Pinnacle. It is rated higher for sound quality than the Klipsch Heresy IV and costs less, so only choose the other one for a particular feature it does better.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| Klipsch Heresy IV | SVS Ultra Evolution Pinnacle | |
|---|---|---|
| Price | $3,198 per pair | $2,499.00 per pair |
| Ranked | #71 of 73 in Large Size Floorstanding Speakers | #53 of 73 in Large Size Floorstanding Speakers |
| Bass Extension (-3dB) | 77Hz (measured, Erin’s Audio Corner) | 41.0Hz (measured, Erin’s Audio Corner via spinorama.org) |
| Bass Extension (-10dB) | 50.0Hz (measured, Erin’s Audio Corner) | - |
| Sensitivity | 94.5dB/2.83V/1m (measured, Erin’s Audio Corner) | 88dB |
| Impedance | Approximately 4 ohms minimum (measured, Erin’s Audio Corner) | 6 ohms nominal |
| Drivers | 1” horn-loaded tweeter; 1.75” horn-loaded midrange; 12” woofer | 1” diamond-coated tweeter, dual 5.25” midranges, quad 8” woofers |
| Dimensions | 24.8”H x 15.6”W x 13.3”D | 50.2H x 11.8W x 18.1D in |
| Weight | 45 lbs (20.4 kg) each | 96.8 lbs (43.9 kg) each |
| Woofer Cabinet | ported, rear | - |
| Spinorama Preference Score | 2.27 | 4.91 |
| Spinorama Preference Score with Perfect Sub | 5.02 | 6.13 |
| DIY Kit | No | No |
| Enclosure | - | 3-way passive, dual rear ports |
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The Two Speakers In Full
Klipsch Heresy IV: $3,198 per pair Amazon Crutchfield eBay
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 |
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SVS Ultra Evolution Pinnacle: $2,499.00 per pair Amazon SVS eBay
Pros: Flagship three-way tower with a diamond-coated tweeter, dual midranges and four force-balanced 8-inch woofers. Erin measured exceptional 27Hz extension, broad roughly +/-75-degree horizontal coverage, an 88.1dB sensitivity and a 4.91 preference score even without a subwoofer. Measured bass extension of 41.0Hz (-3dB).
Cons: The 5.25-to-8-inch transitions and complex array do not produce class-leading smoothness: 0.184 on-axis, 0.226 predicted in-room and 3.64 directivity-index consistency. At 96.7 pounds each, these are difficult to position, and their Q of 1.25 indicates some bass emphasis. A dip in the upper midrange followed closely by a peak around 2 to 3kHz gives vocals a shouty, forward quality that toe-out alone does not resolve.
Full SVS Ultra Evolution Pinnacle review and specifications →
| Bass Extension (-3dB) | 41.0Hz (measured, Erin’s Audio Corner via spinorama.org) |
|---|---|
| DIY Kit | No |
| Dimensions | 50.2H x 11.8W x 18.1D in |
| Drivers | 1” diamond-coated tweeter, dual 5.25” midranges, quad 8” woofers |
| Enclosure | 3-way passive, dual rear ports |
| Impedance | 6 ohms nominal |
| Sensitivity | 88dB |
| Spinorama Preference Score | 4.91 |
| Spinorama Preference Score with Perfect Sub | 6.13 |
| Weight | 96.8 lbs (43.9 kg) each |
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