Short answer: the Klipsch Heresy IV for better sound quality, the Magnepan LRS+ for the lower price. The Klipsch Heresy IV ranks #44 of 68 floorstanding speakers at $3198. The Magnepan LRS+ ranks #62 at $1300, $1898 cheaper.
What the Klipsch Heresy IV offers: 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. 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 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.
What the Magnepan LRS+ offers: Thin, two-way planar-magnetic open-baffle/dipole panel design (about 48” tall, just 1” deep). Delivers a uniquely dramatic and enveloping soundstage with genuinely three-dimensional depth effects that work across all music genres, not just classical or orchestral material as commonly assumed. Extremely tight, locked-in center-phantom imaging when set up correctly. Open-baffle design avoids the “boxy” enclosure coloration of conventional cabinet speakers. Multitone distortion is remarkably consistent from low to high frequency, a characteristic the reviewer hasn’t observed in conventional cone-and-dome speakers. Compression at high output stays modest (about 0.5-1dB) through the midrange and treble, giving roughly 20-26dB of usable dynamic range in that region. At its price, a strong contender for a dedicated secondary listening room, even if not a main-system replacement. Watch for: Extremely current-hungry and power-hungry: even a pair of 600W Macintosh monoblock amplifiers only averaged about 90dB output - a robust, high-power amplifier is essentially mandatory, and budget amps won’t cut it. Bass rolls off very quickly (F3 74Hz, F10 67Hz, described as falling off “like a rock”), making a subwoofer an absolute requirement for any low-end content. A roughly 3dB dip in the mid-bass (100-300Hz) region thins out vocal body and fullness compared to a conventional bookshelf speaker. A resonance/bump around 400Hz adds a mild boxy quality, though it responds well to about 2dB of EQ correction. Extraordinarily fussy about exact positioning - both seating height (must align with the acoustic reference point between the panel’s lower tie-down points) and horizontal aiming are unusually critical; moving just a couple of inches can cause treble content above roughly 500-600Hz to nearly vanish. Distinct off-axis cancellation zones exist directly to the sides of the panel, where very little sound is audible at all. Fails badly under extreme dynamic-transient testing in the bass, and the reviewer blew fuses pushing the speaker during testing - not built for high-volume or highly dynamic playback. A genuinely different category from conventional hi-fi speakers, requiring more setup patience and experimentation than a typical monopole design.
Buy the Klipsch Heresy IV if sound quality matters more than the price. Buy the Magnepan LRS+ if the price matters more than sound quality.
If sound quality matters at all to you, skip the Magnepan LRS+. It ranks near the bottom of the 68 floorstanding speakers, so look higher up the list instead.
Specifications Side By Side
| Klipsch Heresy IV | Magnepan LRS+ | |
|---|---|---|
| Price | $3,198/pair | $1300 |
| Ranked | #44 of 68 in Large Size Floorstanding Speakers | #62 of 68 in Large Size Floorstanding Speakers |
| Bass Extension (-3dB) | 77Hz (measured, Erin’s Audio Corner) | 74Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 50.0Hz (measured, Erin’s Audio Corner) | 67Hz (measured, Erin’s Audio Corner) |
| Sensitivity | 94.5dB/2.83V/1m (measured, Erin’s Audio Corner) | 85.1dB (measured, Erin’s Audio Corner) |
| Impedance | Approximately 4 ohms minimum (measured, Erin’s Audio Corner) | 4 ohms nominal, 3 ohms minimum (measured, Erin’s Audio Corner) |
| Drivers | 1" horn-loaded tweeter; 1.75" horn-loaded midrange; 12" woofer | Full-range planar magnetic dipole panel (48" tall x 13.5" wide); quasi-ribbon design, two-way with separate mid/bass and tweeter ribbon sections |
| Dimensions | 24.8"H x 15.6"W x 13.3"D | 48"H x 13.5"W x 1"D (1219.2 x 342.9 x 25.4 mm) |
| Weight | 45 lb each | 30 lbs / 13.6 kg |
| Woofer Cabinet | ported, rear | open baffle |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- JBL HDI-3600 vs Polk Audio XT60
- KEF R11 Meta vs Polk Audio XT60
- Klipsch Forte IV vs Polk Audio XT60
- Klipsch Heresy IV vs Dynaudio Emit 30
- Klipsch Heresy IV vs KEF Q11 Meta
Prices on this page were last checked August 24, 2026 at 6:53 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 Heresy IV: $3,198/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.
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) |
| 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) |
| Weight | 45 lb each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Klipsch Heresy IV vs Polk Audio XT60
- Klipsch Heresy IV vs KEF Q11 Meta
- Klipsch Heresy IV vs Klipsch Forte IV
- Klipsch Heresy IV vs Infinity Primus 360
- Klipsch Heresy IV vs Klipsch RP-5000F II
- Klipsch Heresy IV vs SVS Ultra Evolution Pinnacle
- Klipsch Heresy IV vs Definitive Technology BP-9020
- Klipsch Heresy IV vs Polk Reserve R500
- See all 30 comparisons
Magnepan LRS+: $1300 Magnepan eBay
Pros: Thin, two-way planar-magnetic open-baffle/dipole panel design (about 48” tall, just 1” deep). Delivers a uniquely dramatic and enveloping soundstage with genuinely three-dimensional depth effects that work across all music genres, not just classical or orchestral material as commonly assumed. Extremely tight, locked-in center-phantom imaging when set up correctly. Open-baffle design avoids the “boxy” enclosure coloration of conventional cabinet speakers. Multitone distortion is remarkably consistent from low to high frequency, a characteristic the reviewer hasn’t observed in conventional cone-and-dome speakers. Compression at high output stays modest (about 0.5-1dB) through the midrange and treble, giving roughly 20-26dB of usable dynamic range in that region. At its price, a strong contender for a dedicated secondary listening room, even if not a main-system replacement.
Cons: Extremely current-hungry and power-hungry: even a pair of 600W Macintosh monoblock amplifiers only averaged about 90dB output - a robust, high-power amplifier is essentially mandatory, and budget amps won’t cut it. Bass rolls off very quickly (F3 74Hz, F10 67Hz, described as falling off “like a rock”), making a subwoofer an absolute requirement for any low-end content. A roughly 3dB dip in the mid-bass (100-300Hz) region thins out vocal body and fullness compared to a conventional bookshelf speaker. A resonance/bump around 400Hz adds a mild boxy quality, though it responds well to about 2dB of EQ correction. Extraordinarily fussy about exact positioning - both seating height (must align with the acoustic reference point between the panel’s lower tie-down points) and horizontal aiming are unusually critical; moving just a couple of inches can cause treble content above roughly 500-600Hz to nearly vanish. Distinct off-axis cancellation zones exist directly to the sides of the panel, where very little sound is audible at all. Fails badly under extreme dynamic-transient testing in the bass, and the reviewer blew fuses pushing the speaker during testing - not built for high-volume or highly dynamic playback. A genuinely different category from conventional hi-fi speakers, requiring more setup patience and experimentation than a typical monopole design.
Full Magnepan LRS+ review and specifications →
| Bass Extension (-10dB) | 67Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 74Hz (measured, Erin's Audio Corner) |
| Dimensions | 48"H x 13.5"W x 1"D (1219.2 x 342.9 x 25.4 mm) |
| Drivers | Full-range planar magnetic dipole panel (48" tall x 13.5" wide); quasi-ribbon design, two-way with separate mid/bass and tweeter ribbon sections |
| Impedance | 4 ohms nominal, 3 ohms minimum (measured, Erin's Audio Corner) |
| Sensitivity | 85.1dB (measured, Erin's Audio Corner) |
| Weight | 30 lbs / 13.6 kg |
| Woofer Cabinet | open baffle |
- Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner: Grab Your Pitchforks! The Magnepan LRS+ Review You Didn’t See Coming! More from Erin’s Audio Corner →
- Erin’s Audio Review Website Magnepan LRS+
- Erin’s Audio Corner: I Tested 250 Speakers So You Don’t Have To!
- Erin’s Audio Corner Measurements (spinorama.org)
- Reddit Search for Magnepan LRS+ Review
- Head-to-Head Comparisons