Short answer: the KEF LS50 Wireless II for better sound quality, the Edifier R1280DB for the lower price. The KEF LS50 Wireless II ranks #18 of 100 powered bookshelf speakers, rated 4.3/5, at $2,999. The Edifier R1280DB ranks #88, rated 3.1/5, at $139.99, $2,859.01 cheaper.
The case for the Edifier R1280DB: Optical/coaxial inputs and Bluetooth add practical flexibility over the analog R1280T, while remote and tone controls simplify everyday listening. The tradeoff: The compact format is better suited to nearfield listening than high-volume playback across a large room.
The KEF LS50 Wireless II is the better-sounding, deeper-bass choice. Erin’s measurements give preference scores of 5.43 standalone and 7.51 with an ideal subwoofer, with a -3dB point around 51Hz. Its bass reaches about 51.3Hz before falling 3dB, against 63Hz for the Edifier R1280DB. It keeps a wired aux input, which the Edifier R1280DB lacks. It has an adjustable EQ, which the Edifier R1280DB lacks. Watch for: The 3.0dB response span is good but not reference-leading, and dispersion still varies with frequency.
Buy the Edifier R1280DB if the price matters more than sound quality. Buy the KEF LS50 Wireless II if sound quality matters more than the price.
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Specifications Side By Side
| Edifier R1280DB | KEF LS50 Wireless II | |
|---|---|---|
| Price | $139.99 per pair | $2,999.00 per pair |
| Ranked | #88 of 100 in Medium Size Powered Bookshelf Speakers | #18 of 100 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 63Hz (measured, Audio Science Review) - shares the R1280T driver and cabinet; read from that measurement | 51.3Hz (measured, spinorama.org) |
| Bass Extension (-10dB) | 53.2Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) | 41.5Hz (measured, spinorama.org) |
| Dimensions | 9.2”H x 5.7”W x 7.7”D (233.7 x 144.8 x 195.6 mm) | 12” x 7.9” x 12.2” (305 x 200 x 311 mm) each |
| Frequency Response | 55 Hz-20 kHz (-3dB) (Manufacturer specified) | 45Hz - 28kHz ±3dB |
| Inputs | Bluetooth, 2x RCA Input, Digital Optical, Digital Coax | HDMI eARC, optical, digital coaxial, 3.5mm analog, USB-A (service), Ethernet |
| Outputs | None | RCA subwoofer |
| Weight | 10.8 lbs (4.9 kg) | 44.3 lbs (20.1 kg) for the pair |
| Drivers | 4” (102mm) woofer | Uni-Q coincident array: 130mm aluminum woofer + 25mm MAT aluminum dome tweeter |
| App | No | KEF Connect (placement EQ presets, source selection, firmware updates) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.1 | 4.2 |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | - |
| EQ | No | Yes, fixed placement presets (desk/bookshelf/wall-mount) - no automatic room correction |
| Amplifier Power | 42w RMS Total | 280W (LF) + 100W (HF) per speaker, bi-amped |
| XLR Input | No | No |
| RCA Input | Yes | No |
| TRS Input | No | No |
| Optical Input | Yes | Yes |
| Coaxial Input | Yes | Yes |
| USB Input | No | No |
| HDMI Input | No | Yes |
| AES Input | No | No |
| Aux Input | No | Yes |
| Maximum SPL | - | 108dB at 1m (manufacturer specified) |
| Spinorama Preference Score | - | 5.43 |
| Spinorama Preference Score with Perfect Sub | - | 7.51 |
| Subwoofer Output | - | Yes |
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Prices on this page were last checked October 7, 2026 at 9:25 PM 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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The Two Speakers In Full
Edifier R1280DB: $139.99 per pair Amazon eBay
Pros: Optical/coaxial inputs and Bluetooth add practical flexibility over the analog R1280T, while remote and tone controls simplify everyday listening. It is a convenient inexpensive stereo system rather than a separate amplifier-and-speaker setup. Measured bass extension of 63Hz (-3dB).
Cons: The compact format is better suited to nearfield listening than high-volume playback across a large room. Basic tone controls offer less flexibility than parametric equalization.
Full Edifier R1280DB review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 42w RMS Total |
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 53.2Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
| Bass Extension (-3dB) | 63Hz (measured, Audio Science Review) - shares the R1280T driver and cabinet; read from that measurement |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.1 |
| Coaxial Input | Yes |
| Dimensions | 9.2”H x 5.7”W x 7.7”D (233.7 x 144.8 x 195.6 mm) |
| Drivers | 4” (102mm) woofer |
| EQ | No |
| Frequency Response | 55 Hz-20 kHz (-3dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | Bluetooth, 2x RCA Input, Digital Optical, Digital Coax |
| Optical Input | Yes |
| Outputs | None |
| RCA Input | Yes |
| TRS Input | No |
| USB Input | No |
| Weight | 10.8 lbs (4.9 kg) |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Related-model measurements: Edifier R1280T (not R1280DB)
- DSAUDIO.review: Edifier R1280DB vs Edifier R1700BT Sound Demo w/ Bass Test More from DSAUDIOreview →
- DSAUDIO.review: Edifier R1280DBs vs Edifier R1700BTs Sound Comparison
- DSAUDIO.review: DSAUDIO.review Edifier MR4 vs Edifier R1280DBs sound.DEMO
- Related-model Spinorama: Edifier R1280T (not R1280DB)
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KEF LS50 Wireless II: $2,999.00 per pair Amazon KEF Crutchfield eBay
Same family: the KEF LSX II LT (smaller bookshelf, ranked lower, rated 4/5), the KEF LSX II (smaller bookshelf, estimated 4.1/5) and the KEF LS60 (floorstanding, rated 4.8/5).
Pros: Erin’s measurements give preference scores of 5.43 standalone and 7.51 with an ideal subwoofer, with a -3dB point around 51Hz. The coincident Uni-Q layout helps preserve tonal consistency across horizontal and vertical listening positions. Low listening-window narrow-band deviation of 0.308 supports relatively clean midrange reproduction. HDMI eARC and streaming functions make it a capable all-in-one stereo system. Measured bass extension of 51.3Hz (-3dB).
Cons: The 3.0dB response span is good but not reference-leading, and dispersion still varies with frequency. Compact bass drivers limit deep-bass output. App placement adjustments are not the same as microphone-based automatic room correction. The price and primary/secondary architecture are practical trade-offs; neither driver geometry nor a single directivity statistic guarantees the best sound in every room.
Full KEF LS50 Wireless II review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 280W (LF) + 100W (HF) per speaker, bi-amped |
| App | KEF Connect (placement EQ presets, source selection, firmware updates) |
| Aux Input | Yes |
| Bass Extension (-10dB) | 41.5Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | 51.3Hz (measured, spinorama.org) |
| Bluetooth | Yes |
| Bluetooth Version | 4.2 |
| Coaxial Input | Yes |
| Dimensions | 12” x 7.9” x 12.2” (305 x 200 x 311 mm) each |
| Drivers | Uni-Q coincident array: 130mm aluminum woofer + 25mm MAT aluminum dome tweeter |
| EQ | Yes, fixed placement presets (desk/bookshelf/wall-mount) - no automatic room correction |
| Frequency Response | 45Hz - 28kHz ±3dB |
| HDMI Input | Yes |
| Inputs | HDMI eARC, optical, digital coaxial, 3.5mm analog, USB-A (service), Ethernet |
| Maximum SPL | 108dB at 1m (manufacturer specified) |
| Optical Input | Yes |
| Outputs | RCA subwoofer |
| RCA Input | No |
| Spinorama Preference Score | 5.43 |
| Spinorama Preference Score with Perfect Sub | 7.51 |
| Subwoofer Output | Yes |
| TRS Input | No |
| USB Input | No |
| Weight | 44.3 lbs (20.1 kg) for the pair |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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