Short answer: the Polk T50 for a normal system; the Magnepan LRS+ only with serious amplification. The LRS+ is a thin two-way planar-magnetic open-baffle/dipole panel about 48” tall and just 1” deep, and it is extremely power-hungry: even a pair of 600W Macintosh monoblock amplifiers only averaged about 90dB output, so a robust high-power amplifier is mandatory. The T50 at $498 reaches deep bass for the price, with a 5dB peak at 1kHz.
Buy the Polk T50. It is rated higher for sound quality than the Magnepan LRS+ and costs less, which makes it the one to get unless you need something the other one does better.
Looking for alternatives? See the complete Passive Home rankings.
Specifications Side By Side
| Polk T50 | Magnepan LRS+ | |
|---|---|---|
| Price | $498 per pair | $1300 per pair |
| Ranked | #54 of 74 in Large Size Floorstanding Speakers | #61 of 74 in Large Size Floorstanding Speakers |
| Bass Extension (-10dB) | 38Hz (measured, Audio Science Review) | 67Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 47Hz (measured, Audio Science Review) | 74Hz (measured, Erin’s Audio Corner) |
| Impedance | 4 ohms nominal (4.2 ohms minimum, measured by Audio Science Review) | 4 ohms nominal, 3 ohms minimum (measured, Erin’s Audio Corner) |
| Drivers | 2x 6.5” bi-laminate paper cone woofers, 1x 1” Terylene dome tweeter + 2x 8” passive bass radiators | 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 |
| Weight | 75.4 lbs (34.2 kg) | 30 lbs (13.6 kg) |
| Sensitivity | 86.3dB (2.83V/1m, measured by Audio Science Review) | 85.1dB (measured, Erin’s Audio Corner) |
| Dimensions | 40.4”H x 9.3”W x 12.5”D (1026.2 x 235.0 x 317.5 mm) | 48”H x 13.5”W x 1”D (1219.2 x 342.9 x 25.4 mm) |
| Woofer Cabinet | passive radiator | open baffle |
| Spinorama Preference Score | 4.14 | 1.27 |
| Spinorama Preference Score with Perfect Sub | 6.15 | 4.32 |
| DIY Kit | No | No |
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Prices on this page were last checked October 2, 2026 at 10:18 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
Polk T50: $498 per pair Amazon eBay
Pros: Pretty deep bass for the price. Distortion at 86dB SPL/1m is reasonably controlled outside a narrow spike around 250Hz. The reviewer notes performance is “not too bad for a budget speaker” once the two main tonal issues are addressed with EQ. Measured bass extension of 47Hz (-3dB), with a measured sensitivity of 86.3dB.
Cons: 5dB peak at 1kHz, 4dB bright top end from 11kHz on up. Just okay vertical off axis. Impedance and phase show several resonances between 200Hz-1kHz, with a minimum impedance of 4.2 ohms. Distortion rises substantially at 96dB SPL/1m across the midrange, with repeated peaks between 100Hz-2kHz.
Full Polk T50 review and specifications →
| Bass Extension (-10dB) | 38Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 47Hz (measured, Audio Science Review) |
| DIY Kit | No |
| Dimensions | 40.4”H x 9.3”W x 12.5”D (1026.2 x 235.0 x 317.5 mm) |
| Drivers | 2x 6.5” bi-laminate paper cone woofers, 1x 1” Terylene dome tweeter + 2x 8” passive bass radiators |
| Impedance | 4 ohms nominal (4.2 ohms minimum, measured by Audio Science Review) |
| Sensitivity | 86.3dB (2.83V/1m, measured by Audio Science Review) |
| Spinorama Preference Score | 4.14 |
| Spinorama Preference Score with Perfect Sub | 6.15 |
| Weight | 75.4 lbs (34.2 kg) |
| Woofer Cabinet | passive radiator |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Magnepan LRS+: $1300 per pair 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. Measured bass extension of 74Hz (-3dB), with a measured sensitivity of 85.1dB.
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) |
| DIY Kit | No |
| 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) |
| Spinorama Preference Score | 1.27 |
| Spinorama Preference Score with Perfect Sub | 4.32 |
| Weight | 30 lbs (13.6 kg) |
| Woofer Cabinet | open baffle |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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