Short answer: the KEF Reference 3 Meta, if you are buying new. The KEF Reference 203 ranks higher than the Polk Reserve R500 (#17 vs #74 of 188 floorstanding speakers) but is discontinued; its replacement, the KEF Reference 3 Meta, is rated 4.6/5 at $15,999.98 and is still sold new.
The KEF Reference 203 is the better-sounding choice. Watch for: This is a 20+ year old, long-discontinued speaker only findable secondhand (Facebook Marketplace, Craigslist, audio forums): condition, driver matching, and component aging vary by unit, so audition before buying if at all possible.
What the Polk Reserve R500 does well: Dual 5.25” midwoofers paired with a ring radiator tweeter in a floorstanding tower design. Watch for: A bump around 4-6kHz gives a “shouty,” mildly sibilant quality in the lower treble.
Buy the KEF Reference 3 Meta, the replacement for the discontinued KEF Reference 203; it is rated higher for sound quality than the Polk Reserve R500.
Looking for alternatives? See the complete Passive Home rankings.
Specifications Side By Side
| KEF Reference 203 | Polk Reserve R500 | |
|---|---|---|
| Price | $5,000 per pair Discontinued | $1,118 per pair |
| Ranked | #17 of 188 in Large Size Floorstanding Speakers | #74 of 188 in Large Size Floorstanding Speakers |
| Bass Extension (-10dB) | 37Hz (measured, Erin’s Audio Corner) | 33Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 51Hz (measured, Erin’s Audio Corner) | 51Hz (measured, Erin’s Audio Corner) |
| Dimensions | 42”H (1067H mm) | 40.3”H x 6.8”W x 12.4”D (1023.6 x 172.7 x 315 mm) |
| Impedance | 8 ohms nominal (3.6 ohms minimum, measured, Erin’s Audio Corner; 3.2 ohms per manufacturer spec) | 4.1 ohms minimum above 80Hz (measured, Erin’s Audio Corner; 8 ohms nominal per manufacturer) |
| Sensitivity | 88dB (2.83V/1m, measured by Erin’s Audio Corner) | 86.2dB (measured, Erin’s Audio Corner) |
| Drivers | 1x 0.75” supertweeter, coaxial 1” dome tweeter + 6.5” midrange, 2x 6.5” woofers | Two 5.25” Turbine Cone woofer, 1” Pinnacle Ring Radiator tweeter |
| Weight | 58 lbs (26.3 kg) | 39.2 lbs (17.8 kg) each |
| Woofer Cabinet | Bass reflex, with switchable flat/cut/lifted bass ports for wall placement | ported, rear |
| Crossover Frequency | 400Hz, 2.7kHz, 15kHz | - |
| Frequency Response | 55Hz - 55kHz ±3dB (Manufacturer specified) | - |
| Recommended Power | 50-200W | - |
| Spinorama Preference Score | 5.83 | 5.86 |
| Spinorama Preference Score with Perfect Sub | 7.84 | 7.44 |
| 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
KEF Reference 203: $5,000 per pair Discontinued eBay
Newer model: the KEF Reference 3 Meta, ranked lower, rated 4.6/5.
Pros: An unusually accomplished 4-way design for its era: excellent on-axis linearity (within about +/-3dB), genuinely good directivity both horizontally (~55 degrees) and vertically (~40-50 degrees), and an estimated in-room response that closely matches what the reviewer actually heard. Distortion is excellent: under 1% harmonic above 80Hz at both 86dB and 96dB, and multitone stays around 1% even at 96dB. Bass reaches a real F3 of 51Hz (F10 37Hz), with in-room extension into the low-mid-40s. The reviewer’s overall listening notes were essentially “nothing stood out bad or good”: a genuinely neutral, accurate speaker with a distinctive rounded-baffle look that avoids the diffraction issues a flat baffle this wide would normally have. Measured bass extension of 51Hz (-3dB), with a measured sensitivity of 88dB.
Cons: This is a 20+ year old, long-discontinued speaker only findable secondhand (Facebook Marketplace, Craigslist, audio forums): condition, driver matching, and component aging vary by unit, so audition before buying if at all possible. Demands a robust amplifier: impedance dips to about 3.6 ohms with an EPDR of 2.2 ohms. The small supertweeter shows minor breakup artifacts at the extremes of the vertical polar plot and some compression at very high output in the top octave, though neither was audible in normal listening.
Full KEF Reference 203 review and specifications →
| Bass Extension (-10dB) | 37Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 51Hz (measured, Erin’s Audio Corner) |
| Crossover Frequency | 400Hz, 2.7kHz, 15kHz |
| DIY Kit | No |
| Dimensions | 42”H (1067H mm) |
| Drivers | 1x 0.75” supertweeter, coaxial 1” dome tweeter + 6.5” midrange, 2x 6.5” woofers |
| Frequency Response | 55Hz - 55kHz ±3dB (Manufacturer specified) |
| Impedance | 8 ohms nominal (3.6 ohms minimum, measured, Erin’s Audio Corner; 3.2 ohms per manufacturer spec) |
| Recommended Power | 50-200W |
| Sensitivity | 88dB (2.83V/1m, measured by Erin’s Audio Corner) |
| Spinorama Preference Score | 5.83 |
| Spinorama Preference Score with Perfect Sub | 7.84 |
| Weight | 58 lbs (26.3 kg) |
| Woofer Cabinet | Bass reflex, with switchable flat/cut/lifted bass ports for wall placement |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- KEF Reference 203 vs JBL 4367
- KEF Reference 203 vs Revel F226Be
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Polk Reserve R500: $1,118 per pair Amazon eBay
Same family: the Polk Reserve R100 (smaller bookshelf, rated 3.4/5), the Polk R200 (larger bookshelf, rated 3.2/5), the Polk Reserve R600 (larger floorstanding, ranked lower, estimated 4.2/5), the Polk Audio Reserve R700 (larger floorstanding, ranked higher, rated 4.3/5), the Polk Audio Reserve R300 (smallest center, estimated 3.6/5), the Polk Audio Reserve R350 (center, rated 3.7/5) and the Polk Audio Reserve R400 (largest center, estimated 3.8/5).
Pros: Dual 5.25” midwoofers paired with a ring radiator tweeter in a floorstanding tower design. Surprisingly neutral overall compared to Polk’s smaller bookshelf models: notably more even-handed than the brighter-sounding Polk R200 the reviewer tested previously. Good linearity on-axis, within about -3/+2dB. Sensitivity close to 86dB, easily driven to adequate levels in a small-to-medium room with a 100W-capable amplifier. Takes very well to EQ: a single band of correction (about a 2dB cut around 4-5kHz) resolves the main tonal issue and transforms the sound. Dynamic range and compression performance is solidly “medium,” holding up fine through about 20dB of level increase before higher-frequency and bass output start to taper at extreme volumes. Measured bass extension of 51Hz (-3dB), with a measured sensitivity of 86.2dB.
Cons: A bump around 4-6kHz gives a “shouty,” mildly sibilant quality in the lower treble. Counterintuitively, toeing the speaker out to reduce brightness makes this worse rather than better, since the ring-radiator tweeter’s directivity narrows rapidly above about 6-7kHz: pointed on-axis retains enough top-end air to balance the bump, but toed away that air drops off and the shoutiness stands out more. Bass is adequate for its 5.25” woofers but lacks real weight below about 40-50Hz; a subwoofer is still needed for movies and bass-heavy music. A cabinet resonance around 160-170Hz subtracts from rather than adds boom to the mid-bass region. Vertical listening window is fairly narrow: sitting more than about 10-20° above or below the tweeter axis causes a suckout in the 2-5kHz range, reducing clarity and attack. Multitone distortion ramps up noticeably around 1kHz, and crossing over to a subwoofer at 80Hz doesn’t meaningfully reduce it: likely a surround-related effect rather than excursion-related. Without applying corrective EQ, the reviewer says the 4-6kHz brightness would make it harder to live with day to day.
Full Polk Reserve R500 review and specifications →
| Bass Extension (-10dB) | 33Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 51Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 40.3”H x 6.8”W x 12.4”D (1023.6 x 172.7 x 315 mm) |
| Drivers | Two 5.25” Turbine Cone woofer, 1” Pinnacle Ring Radiator tweeter |
| Impedance | 4.1 ohms minimum above 80Hz (measured, Erin’s Audio Corner; 8 ohms nominal per manufacturer) |
| Sensitivity | 86.2dB (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | 5.86 |
| Spinorama Preference Score with Perfect Sub | 7.44 |
| Weight | 39.2 lbs (17.8 kg) each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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