Short answer: the Cambridge Audio L/R S if sound quality matters most, the Edifier MR3 if price matters most. The Cambridge Audio L/R S ranks #4 of 23 powered bookshelf speakers at $549. The Edifier MR3 ranks #8 at $149.99, $399.01 cheaper.
What the Edifier MR3 offers: Erin’s measurements show little overall tilt across the listening window, helping voices retain a broadly natural balance at a desk. Scores of 3.01 standalone and 5.63 with an ideal subwoofer support it as a useful budget nearfield option rather than a reference monitor. Tone controls and app-based EQ provide unusually flexible adjustment, and its bass extends farther than the Fostex PM03’s. Watch for: Local response ripples remain: the measured 300Hz-5kHz span is 4.5dB and listening-window narrow-band deviation is 0.538. Bass reaches -3dB at about 70Hz. The limiter protects the drivers but prevents much extra loudness when pushed; existing compression testing puts effective single-speaker output around 86-87dB at 1m. Vertical crossover interference makes tweeter height and tilt important.
What the Cambridge Audio L/R S offers: 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. 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. Watch for: 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.
Buy the Edifier MR3 if the price is the priority over sound quality, or the Cambridge Audio L/R S if sound quality is the priority over the price.
Want more options? Browse the full Powered Home rankings.
Specifications Side By Side
| Edifier MR3 | Cambridge Audio L/R S | |
|---|---|---|
| Price | $149.99 per pair | $549.00 per pair |
| Ranked | #8 of 23 in Small Size Powered Bookshelf Speakers | #4 of 23 in Small Size Powered Bookshelf Speakers |
| App | No | Yes |
| Dimensions | 5.9"H x 3.7"W x 5.9"D (149.9 x 94 x 149.9 mm) | 5.3" (134 mm) W x 226mm H x 180mm D (each) |
| EQ | Yes (Bass/Treble) | - |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | 55Hz - 24kHz (±3dB, manufacturer specified) |
| Inputs | Bluetooth, Aux, RCA | RCA, optical digital, USB-C |
| Weight | 6.6 lbs (3 kg) | 6.6 lbs (3.0kg) primary speaker, 5.7 lbs (2.6kg) secondary speaker |
| Drivers | 3" woofer, 0.75" silk dome tweeter | 21mm aluminum dome tweeter, 3" long-throw woofer |
| Bass Extension (-10dB) | 52Hz (measured, Erin's Audio Corner) | 50Hz (measured, Erin's Audio Corner) |
| Bass Extension (-3dB) | 60Hz (measured, Erin's Audio Corner) | 57Hz (measured, Erin's Audio Corner) |
| Bluetooth | Yes | - |
| Bluetooth Codecs | SBC | SBC, AAC, aptX, aptX HD |
| Bluetooth Version | 5.4 | - |
| Amplifier Power | 36W total (18W per speaker) | 100W total (50W to woofer, 50W to tweeter, per speaker) |
| Sensitivity | 83.3dB (measured at 0.3V/1m, Erin's Audio Corner) | - |
| Maximum SPL | 93dB @ 1m (manufacturer specified) | - |
| Spinorama Preference Score | 3.01 | - |
| Spinorama Preference Score with Perfect Sub | 5.63 | - |
| DSP | - | Yes, room size, wall distance, and reflective surface correction; desktop-placement and near-wall/free-space switches |
| Subwoofer Output | - | Yes |
| Outputs | - | Subwoofer, wired speaker-to-speaker link |
Related Speaker Comparisons
How Cambridge Audio L/R S compares with other leading options:
- Genelec 8010A vs Cambridge Audio L/R S
- Adam Audio D3v vs Cambridge Audio L/R S
- IK Multimedia iLoud Micro Monitor vs Cambridge Audio L/R S
- Edifier M60 vs Cambridge Audio L/R S
- HiVi Swan X3 vs Cambridge Audio L/R S
Prices on this page were last checked September 16, 2026 at 12:41 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Edifier MR3: $149.99 per pair Amazon eBay
Pros: Erin’s measurements show little overall tilt across the listening window, helping voices retain a broadly natural balance at a desk. Scores of 3.01 standalone and 5.63 with an ideal subwoofer support it as a useful budget nearfield option rather than a reference monitor. Tone controls and app-based EQ provide unusually flexible adjustment, and its bass extends farther than the Fostex PM03’s. Measured bass extension of 60Hz (-3dB), with a measured sensitivity of 83.3dB.
Cons: Local response ripples remain: the measured 300Hz-5kHz span is 4.5dB and listening-window narrow-band deviation is 0.538. Bass reaches -3dB at about 70Hz. The limiter protects the drivers but prevents much extra loudness when pushed; existing compression testing puts effective single-speaker output around 86-87dB at 1m. Vertical crossover interference makes tweeter height and tilt important.
Full Edifier MR3 review and specifications →
| Amplifier Power | 36W total (18W per speaker) |
|---|---|
| App | No |
| Bass Extension (-10dB) | 52Hz (measured, Erin's Audio Corner) |
| Bass Extension (-3dB) | 60Hz (measured, Erin's Audio Corner) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Dimensions | 5.9"H x 3.7"W x 5.9"D (149.9 x 94 x 149.9 mm) |
| Drivers | 3" woofer, 0.75" silk dome tweeter |
| EQ | Yes (Bass/Treble) |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| Inputs | Bluetooth, Aux, RCA |
| Maximum SPL | 93dB @ 1m (manufacturer specified) |
| Sensitivity | 83.3dB (measured at 0.3V/1m, Erin's Audio Corner) |
| Spinorama Preference Score | 3.01 |
| Spinorama Preference Score with Perfect Sub | 5.63 |
| Weight | 6.6 lbs (3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Cambridge Audio L/R S: $549.00 per pair Amazon eBay
Pros: 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. 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.
Full Cambridge Audio L/R S review and specifications →
| Amplifier Power | 100W total (50W to woofer, 50W to tweeter, per speaker) |
|---|---|
| App | Yes |
| Bass Extension (-10dB) | 50Hz (measured, Erin's Audio Corner) |
| Bass Extension (-3dB) | 57Hz (measured, Erin's Audio Corner) |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD |
| 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) |
| Inputs | RCA, optical digital, USB-C |
| Outputs | Subwoofer, wired speaker-to-speaker link |
| Subwoofer Output | Yes |
| Weight | 6.6 lbs (3.0kg) primary speaker, 5.7 lbs (2.6kg) secondary speaker |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Cambridge Audio L/R S vs Adam Audio D3v
- Cambridge Audio L/R S vs IK Multimedia iLoud Micro Monitor
- Cambridge Audio L/R S vs Edifier M60
- Cambridge Audio L/R S vs Genelec 8010A
- Cambridge Audio L/R S vs HiVi Swan X3
- Cambridge Audio L/R S vs Klipsch ProMedia Lumina
- Cambridge Audio L/R S vs Mackie CR3-X
- Cambridge Audio L/R S vs Fiio SP3
- See all 9 comparisons