Short answer: the Polk T50. It ranks #45 of 56 floorstanding speakers by sound quality at $249; the Infinity Reference 253 ranks #48 and costs $400, so there is not much of a tradeoff to weigh.
What the Polk T50 gets right: Pretty deep bass for the price. The catch: 5dB peak at 1khz, 4dB bright top end from 11khz on up.
What the Infinity Reference 253 offers: Horizontal beamwidth of about ±60 degrees is fairly smooth and well controlled. Watch for: CEA2034 spinorama and predicted in-room response both show elevated treble above 4kHz (“too hot”), a dip around 2kHz, and bass shelved down relative to the midrange.
Buy the Polk T50. It ranks higher for sound quality than the Infinity Reference 253 and costs less, so there is no real case for the other one.
If sound quality matters at all to you, skip both of these and look higher up the 56 floorstanding speakers instead.
Specifications Side By Side
| Polk T50 | Infinity Reference 253 | |
|---|---|---|
| Price | $249.00 | $400 used, Discontinued |
| Ranked | #45 of 56 in Large Size Floorstanding Speakers | #48 of 56 in Large Size Floorstanding Speakers |
| Bass Extension (-10dB) | 38Hz (measured, Audio Science Review) | 38Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 47Hz (measured, Audio Science Review) | 78Hz (measured, Audio Science Review) |
| Impedance | 4 ohms nominal (4.2 ohms minimum, measured by Audio Science Review) | 6 ohms |
| Drivers | 2x 6.5" bi-laminate paper cone woofers, 1x 1" Terylene dome tweeter + 2x 8" passive bass radiators | Dual 5.25" (130mm) CMMD™ woofers, 5.25" (130mm) flat-piston CMMD™ midrange, 1" (25mm) CMMD™ tweeter |
| Weight | 75.4 lbs / 34.2 kg | 39.2 lbs / 17.8 kg each |
| Sensitivity | 86.3dB (2.83V/1m, measured by Audio Science Review) | 86.9dB (measured by Audio Science Review; 88dB manufacturer specified) |
| Dimensions | 40.4"H x 9.3"W x 12.5"D (1026.2 x 235.0 x 317.5 mm) | 40.3"H x 6.8"W x 12.4"D (1023.6 x 172.7 x 315 mm) |
| Woofer Cabinet | passive radiator | ported, rear |
| Discontinued | - | Yes |
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The Two Speakers In Full
Polk T50: $249.00 Amazon
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.
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) |
| 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) |
| Weight | 75.4 lbs / 34.2 kg |
| Woofer Cabinet | passive radiator |
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- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Infinity Reference 253: $400 used, Discontinued
Pros: Horizontal beamwidth of about ±60 degrees is fairly smooth and well controlled. Really amazing value for the performance.
Cons: CEA2034 spinorama and predicted in-room response both show elevated treble above 4kHz (“too hot”), a dip around 2kHz, and bass shelved down relative to the midrange. Vertical directivity requires staying at or below the tweeter axis for accurate tonal balance. Distortion at 96dB SPL/1m is broadly elevated above the reviewer’s audibility threshold across much of the midrange. Minimum impedance dips to 4.2 ohms. Discontinued.
Full Infinity Reference 253 review and specifications →
| Bass Extension (-10dB) | 38Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 78Hz (measured, Audio Science Review) |
| Dimensions | 40.3"H x 6.8"W x 12.4"D (1023.6 x 172.7 x 315 mm) |
| Discontinued | Yes |
| Drivers | Dual 5.25" (130mm) CMMD™ woofers, 5.25" (130mm) flat-piston CMMD™ midrange, 1" (25mm) CMMD™ tweeter |
| Impedance | 6 ohms |
| Sensitivity | 86.9dB (measured by Audio Science Review; 88dB manufacturer specified) |
| Weight | 39.2 lbs / 17.8 kg each |
| Woofer Cabinet | ported, rear |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Infinity Reference 253 vs JBL Stage 2 280F
- Infinity Reference 253 vs Sony SS-CS3
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- Infinity Reference 253 vs Klipsch RP-6000F II
- Infinity Reference 253 vs Dynaudio Emit 30
- Infinity Reference 253 vs Klipsch RP-8000F II
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