The Cambridge Audio L/R S ranks #4 out of 48 total Small Size Powered Bookshelf Speakers for sound quality. See all Powered Home rankings for every top pick.
Brand: Cambridge Audio
Prices on this page were last checked October 23, 2026 at 8:27 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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#4 Cambridge Audio L/R S: $549.00 per pair Amazon $549.00 eBay
Same family: the Cambridge Audio L/R M (larger bookshelf, estimated 4.2/5) and the Cambridge Audio L/R X (larger bookshelf, rated 4.1/5).
Pros: Compact desk speakers with very accurate sound, Bluetooth and optical and USB inputs, best for close listening. A 2-way active bookshelf pair built for near-field desktop use, with a 21mm aluminum tweeter and a 3-inch long-throw woofer on each speaker. Erin’s Audio Corner measured a very neutral on-axis response with good directivity control up through the 2-3kHz handoff to the tweeter, an F3 of about 57Hz and F10 of about 50Hz, and output held within roughly plus or minus 2.5dB from 80Hz to 20kHz. Its preference score is 5.08 on its own and 7.72 with an ideal subwoofer, ahead of the ADAM Audio D3v once a sub fills in the bass. Horizontal dispersion of about plus or minus 60 degrees and a vertical window of about plus 30 to minus 20 degrees make it forgiving of off-center desktop seating. Two rear switches (a desktop-placement compensation switch and a near-wall/free-space switch) plus in-app DSP for room size, wall distance, and reflective surface type let you tune the in-room response rather than just hoping placement works out, and the reviewer noted an audible tightening of the bass moving between room-size settings. Rear connectivity includes RCA, optical digital, USB-C, and a dedicated subwoofer output. Measured bass extension of 57Hz (-3dB).
Cons: Maximum clean output is limited: Erin’s Audio Corner measured about 86dB before the onboard limiter engages around 96dB to protect the drivers, so this is a near-field or small-room speaker rather than one built to fill a living room. Each speaker’s Class D amplifier splits only 50W to the woofer and 50W to the tweeter, modest for the class. The DSP room-correction options are preset-based rather than a true microphone-measured calibration at the listening position, so results depend on picking settings that match your actual room.
| Released | Apr 2026 (6 months ago) |
|---|---|
| AES Input | No |
| Amplifier Power | 100W total (50W to woofer, 50W to tweeter, per speaker) |
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 50Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 57Hz (measured, Erin’s Audio Corner) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD |
| Bluetooth Version | 5.1 |
| Coaxial Input | No |
| DSP | Yes, room size, wall distance, and reflective surface correction; desktop-placement and near-wall/free-space switches |
| Dimensions | 5.3” (134 mm) W x 226mm H x 180mm D (each) |
| Drivers | 21mm aluminum dome tweeter, 3” long-throw woofer |
| Frequency Response | 55Hz - 24kHz (±3dB, manufacturer specified) |
| HDMI Input | No |
| Inputs | RCA, optical digital, USB-C |
| Optical Input | Yes |
| Outputs | Subwoofer, wired speaker-to-speaker link |
| RCA Input | Yes |
| Spinorama Preference Score | 5.08 |
| Spinorama Preference Score with Perfect Sub | 7.72 |
| Subwoofer Output | Yes |
| TRS Input | No |
| USB Input | Yes |
| Weight | 6.6 lbs (3.0kg) primary speaker, 5.7 lbs (2.6kg) secondary speaker |
| XLR Input | No |
Price history (per pair)
The price has held at $549 since Sep 2026.
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