Short answer: the PSB Imagine T65. It ranks #61 of 188 floorstanding speakers by sound quality (rated 4.3/5) at $2,699 and is still sold new; the Infinity Reference 253 ranks #148 (rated 3.5/5) and is discontinued, so it is only an option used.
The PSB Imagine T65 is the better-sounding, deeper-bass pick. Three-way design with dual 6.5” woven carbon fiber woofers delivers genuinely strong, extended low end for a $2699 tower: among the better performers Erin has measured in this price class. Its bass reaches about 47Hz before falling 3dB, against 78Hz for the Infinity Reference 253. The catch: Noticeable dip in the midrange/crossover region that Erin flagged as affecting dialogue and vocal clarity, though he notes a couple bands of EQ smooths it out.
What the Infinity Reference 253 does well: 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 PSB Imagine T65. It is rated higher for sound quality and still sold new, while the Infinity Reference 253 is discontinued.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| PSB Imagine T65 | Infinity Reference 253 | |
|---|---|---|
| Price | $2,699 per pair | $400 per pair used, Discontinued |
| Ranked | #61 of 188 in Large Size Floorstanding Speakers | #148 of 188 in Large Size Floorstanding Speakers |
| Drivers | 1” titanium dome tweeter, 5.25” woven carbon fiber midrange, 2x 6.5” woven carbon fiber woofers | Dual 5.25” (130mm) CMMD™ woofers, 5.25” (130mm) flat-piston CMMD™ midrange, 1” (25mm) CMMD™ tweeter |
| Crossover Frequency | 600Hz & 2000Hz, 4th-order Linkwitz-Riley | - |
| Dimensions | 38.8” x 8.4” x 13.5” (986 x 213 x 343 mm) | 40.3”H x 6.8”W x 12.4”D (1023.6 x 172.7 x 315 mm) |
| Weight | 44.1 lbs (20 kg) each | 39.2 lbs (17.8 kg) each |
| Impedance | 8 ohms nominal (3.3 ohms minimum measured by Erin’s Audio Corner; manufacturer specifies 4 ohms minimum) | 6 ohms |
| Sensitivity | 85.1dB (measured average, Erin’s Audio Corner) | 86.9dB (measured by Audio Science Review; 88dB manufacturer specified) |
| Recommended Power | 20-200W | - |
| Enclosure | Vented: dual rear slot ports, individual woofer chambers | - |
| Bass Extension (-3dB) | 47Hz (measured average, Erin’s Audio Corner) | 78Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | 26Hz (measured average, Erin’s Audio Corner) | 38Hz (measured, Audio Science Review) |
| Frequency Response | 28Hz - 20kHz (±1.5dB, manufacturer specified) | - |
| Spinorama Preference Score | 5.29 | 5.43 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 6.51 | 7.31 (spinorama.org) |
| DIY Kit | No | No |
| Woofer Cabinet | - | ported, rear |
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The Two Speakers In Full
PSB Imagine T65: $2,699 per pair PSB Speakers eBay
Same family: the PSB Imagine B50 (bookshelf, rated 3.7/5) and the PSB Imagine T54 (smaller floorstanding, ranked lower, estimated 4.2/5).
Pros: Three-way design with dual 6.5” woven carbon fiber woofers delivers genuinely strong, extended low end for a $2699 tower: among the better performers Erin has measured in this price class. Distortion shows a clean second-order character with clear separation from third-order all the way up to 96 dB, indicating a well-controlled motor. Compression data shows enhancement rather than compression below about 50-60 Hz, so the bass can sound louder as you turn it up rather than choking off. Wide, forgiving vertical listening window (about ±25°) thanks to the 3-way layout, giving more seating and placement flexibility than most towers. Plenty of dynamic headroom for home theater use or a two-channel system: 100W drove it comfortably in Erin’s room. Measured bass extension of 47Hz (-3dB), with a measured sensitivity of 85.1dB.
Cons: Noticeable dip in the midrange/crossover region that Erin flagged as affecting dialogue and vocal clarity, though he notes a couple bands of EQ smooths it out. Some horizontal dispersion mismatch (about 10-15° of ballooning between 1-3 kHz) between the midrange and tweeter can add extra perceived attack or detail if your room’s sidewalls are reflective. Dips to 4 ohms, so it wants an amplifier comfortable driving a 4-ohm load. Distortion climbs above 3% around 60 Hz at 96 dB, though it’s benign second-order distortion.
Full PSB Imagine T65 review and specifications →
| Bass Extension (-10dB) | 26Hz (measured average, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 47Hz (measured average, Erin’s Audio Corner) |
| Crossover Frequency | 600Hz & 2000Hz, 4th-order Linkwitz-Riley |
| DIY Kit | No |
| Dimensions | 38.8” x 8.4” x 13.5” (986 x 213 x 343 mm) |
| Drivers | 1” titanium dome tweeter, 5.25” woven carbon fiber midrange, 2x 6.5” woven carbon fiber woofers |
| Enclosure | Vented: dual rear slot ports, individual woofer chambers |
| Frequency Response | 28Hz - 20kHz (±1.5dB, manufacturer specified) |
| Impedance | 8 ohms nominal (3.3 ohms minimum measured by Erin’s Audio Corner; manufacturer specifies 4 ohms minimum) |
| Recommended Power | 20-200W |
| Sensitivity | 85.1dB (measured average, Erin’s Audio Corner) |
| Spinorama Preference Score | 5.29 |
| Spinorama Preference Score with Perfect Sub | 6.51 |
| Weight | 44.1 lbs (20 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
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Infinity Reference 253: $400 per pair used Discontinued eBay
Same family: the Infinity Reference R152 (smaller bookshelf, rated 3.8/5), the Infinity Reference R162 (larger bookshelf, rated 3.8/5), the Infinity Reference R263 (larger floorstanding, ranked higher, rated 4.4/5), the Infinity Reference RC252 (smaller center, rated 4.4/5) and the Infinity Reference RC263 (larger center, rated 4.2/5).
Pros: Horizontal beamwidth of about ±60 degrees is fairly smooth and well controlled. Really amazing value for the performance. Measured bass extension of 78Hz (-3dB), with a measured sensitivity of 86.9dB.
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) |
| DIY Kit | No |
| Dimensions | 40.3”H x 6.8”W x 12.4”D (1023.6 x 172.7 x 315 mm) |
| 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) |
| Spinorama Preference Score | 5.43 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 7.31 (spinorama.org) |
| Weight | 39.2 lbs (17.8 kg) each |
| Woofer Cabinet | ported, rear |
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- Reviews, Comparisons and Sound Samples
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