The Infinity Reference RS152 ranks #15 out of 15 total Surround and Height Speakers for sound quality. See all Passive Home rankings for every top pick.
Brand: Infinity
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#15 Infinity Reference RS152: $500 per pair Discontinued eBay
Pros: A bipole surround speaker that sprays sound forward and backward from two tweeters, the classic way to make surround effects feel diffuse rather than pinpointed, with bass to 63Hz (-3dB). Measured bass extension of 63.0Hz (-3dB), with a measured sensitivity of 79.7dB.
Cons: Discontinued with no successor. Audio Science Review measured a very uneven response and 79.7dB sensitivity, far below its 90dB claim, and the bipole design scores poorly on the preference model: 0.00 on its own and 2.52 with an ideal subwoofer.
| Bass Extension (-10dB) | about 51.2Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
|---|---|
| Bass Extension (-3dB) | 63.0Hz (measured, Audio Science Review) |
| DIY Kit | No |
| Drivers | 5.25” woofer, two 1” tweeters (bipole) |
| Impedance | 8 ohms |
| Sensitivity | 79.7dB (2.83V/1m, measured, Audio Science Review) |
| Spinorama Preference Score | 0.00 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 2.52 (spinorama.org) |
| Woofer Cabinet | sealed |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the Infinity Reference RS152 measures across the audible range. A flatter listening window (the sound arriving straight at you) is more neutral: peaks sound forward or harsh, dips sound recessed. The estimated in-room response adds what a typical room does, and there a gentle, even tilt down toward the treble is ideal. Both curves are shifted so their 300 Hz to 3 kHz average sits at 0 dB.
Measurement data: spinorama.org, measured by Audio Science Review.
EQ for a Neutral Response
Flattens the measured listening window from the Infinity Reference RS152's own bass extension up to 16 kHz. Set a preamp of -2.5 dB, then add these filters to any parametric equalizer in the signal path: the speaker's app or DSP if it has parametric EQ, a miniDSP, Equalizer APO or Wavelet. Boosts are kept to 3 dB, and EQ cannot fix how evenly the speaker spreads sound off-axis, which is why some speakers gain more than others. Predicted preference score with this EQ: 1.4, up from 0.0 (3.8 with an ideal subwoofer, up from 2.5). Calculated by Speaker Ranking from the spinorama measurements above.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| High shelf | 8,000 Hz | -5.2 dB | 0.70 |
| Peak | 231 Hz | -5.5 dB | 2.02 |
| Peak | 580 Hz | +3.0 dB | 1.43 |
| Peak | 1,336 Hz | +3.0 dB | 2.77 |
| Peak | 2,239 Hz | -3.9 dB | 4.00 |
| Peak | 4,189 Hz | -10.0 dB | 0.74 |
| Peak | 11,742 Hz | +3.0 dB | 3.48 |