Short answer: the KEF LS50 Wireless II for better sound quality, the Edifier R1280DB for the lower price. The KEF LS50 Wireless II ranks #16 of 60 powered bookshelf speakers at $2999.99. The Edifier R1280DB ranks #35 at $159.98, $2840.01 cheaper.
What the Edifier R1280DB offers: Same drivers and cabinet as the ASR-measured Edifier R1280T (identical 4” woofer, same 4.9kg enclosure) plus Bluetooth and digital optical/coax inputs the R1280T doesn’t have. ASR’s measurements of that shared platform found the woofer handled a demanding bass-heavy track without bottoming out or audible distortion, and distortion stayed low and inaudible at a normal 86dB SPL listening level. Built-in remote and bass/treble tone controls, no separate preamp needed. Watch for: Shares the R1280T’s jagged on-axis response rather than a neutral one, with a woofer resonance around 5kHz and a tweeter peak near 10kHz that also show up in the directivity data. The reviewer’s raw impression of that platform was “a bit bass heavy and after a track or two, somewhat bright,” and recommends EQ correction; vertical listening window is narrow, so the tweeter needs to be angled toward the ears. Not quite as neutral sounding as the Edifier MR4.
What the KEF LS50 Wireless II offers: Uni-Q coincident driver array (130mm aluminum woofer with a 25mm MAT dome tweeter mounted at its acoustic center) gives excellent, consistent off-axis dispersion, measuring the tightest directivity spread of this batch (directivity_spdi_stddev 3.96) alongside a smooth listening-window response (smoothness_listening_window 0.375, aad_on_axis 0.343). Bass extends to a genuinely deep 51.3Hz at -3dB / 41.5Hz at -10dB for a compact standmount, backed by a bi-amped 280W (LF) + 100W (HF) design. One of the most complete input sets in its class: HDMI eARC, optical, coaxial, RCA, Ethernet, AirPlay 2, Chromecast, Roon Ready, and Spotify/Tidal Connect, so it can replace a full receiver-based setup for TV, turntable, and streaming use. Watch for: Primary/Secondary architecture means one speaker handles every input while the other depends on a wireless or wired Ethernet link back to it - placement is less flexible than a fully symmetric pair. No mic-based automatic room correction, only fixed placement EQ presets in the KEF Connect app. Bass alignment Q (lfq 0.676) sits toward the higher end of typical ported values. At $2,999.99/pair it’s roughly double the price of KEF’s own smaller LSX II.
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.
Specifications Side By Side
| Edifier R1280DB | KEF LS50 Wireless II | |
|---|---|---|
| Price | $159.98 | $2,999.99 |
| Ranked | #35 of 60 in Medium Size Powered Bookshelf Speakers | #16 of 60 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 80Hz (measured, Audio Science Review) - shares the same driver/cabinet platform as the R1280T; read from that thread’s chart | 51.3Hz (measured, spinorama.org) |
| Bass Extension (-10dB) | 62Hz (measured, Audio Science Review) - shares the same driver/cabinet platform as the R1280T; read from that thread’s chart | 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) (12.0 x 7.9 x 12.2 in) 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, RCA subwoofer out |
| Outputs | None | - |
| Weight | 10.8 lbs / 4.9 kg | 44.3 lbs / 20.1 kg (44.3 lb) 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 | No | Yes, 4.2 |
| EQ | No | Yes, fixed placement presets (desk/bookshelf/wall-mount) - no automatic room correction |
| Output Power | 42w RMS Total | 280W (LF) + 100W (HF) per speaker, bi-amped |
| Max SPL | - | 108dB at 1m |
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Prices on this page were last checked August 24, 2026 at 6:53 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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The Two Speakers In Full
Edifier R1280DB: $159.98 Amazon eBay
Pros: Same drivers and cabinet as the ASR-measured Edifier R1280T (identical 4” woofer, same 4.9kg enclosure) plus Bluetooth and digital optical/coax inputs the R1280T doesn’t have. ASR’s measurements of that shared platform found the woofer handled a demanding bass-heavy track without bottoming out or audible distortion, and distortion stayed low and inaudible at a normal 86dB SPL listening level. Built-in remote and bass/treble tone controls, no separate preamp needed.
Cons: Shares the R1280T’s jagged on-axis response rather than a neutral one, with a woofer resonance around 5kHz and a tweeter peak near 10kHz that also show up in the directivity data. The reviewer’s raw impression of that platform was “a bit bass heavy and after a track or two, somewhat bright,” and recommends EQ correction; vertical listening window is narrow, so the tweeter needs to be angled toward the ears. Not quite as neutral sounding as the Edifier MR4.
Full Edifier R1280DB review and specifications →
| App | No |
|---|---|
| Bass Extension (-10dB) | 62Hz (measured, Audio Science Review) - shares the same driver/cabinet platform as the R1280T; read from that thread's chart |
| Bass Extension (-3dB) | 80Hz (measured, Audio Science Review) - shares the same driver/cabinet platform as the R1280T; read from that thread's chart |
| Bluetooth | No |
| 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) |
| Inputs | Bluetooth, 2x RCA Input, Digital Optical, Digital Coax |
| Output Power | 42w RMS Total |
| Outputs | None |
| Weight | 10.8 lbs / 4.9 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Audio Science Review Measurements More from Audio Science Review →
- 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
- Audio Science Review Measurements (spinorama.org)
- Reddit Search for Edifier R1280DB Review
- Head-to-Head Comparisons
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- Edifier R1280DB vs Audioengine A5+ Classic
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KEF LS50 Wireless II: $2,999.99 Amazon KEF Crutchfield eBay
Pros: Uni-Q coincident driver array (130mm aluminum woofer with a 25mm MAT dome tweeter mounted at its acoustic center) gives excellent, consistent off-axis dispersion, measuring the tightest directivity spread of this batch (directivity_spdi_stddev 3.96) alongside a smooth listening-window response (smoothness_listening_window 0.375, aad_on_axis 0.343). Bass extends to a genuinely deep 51.3Hz at -3dB / 41.5Hz at -10dB for a compact standmount, backed by a bi-amped 280W (LF) + 100W (HF) design. One of the most complete input sets in its class: HDMI eARC, optical, coaxial, RCA, Ethernet, AirPlay 2, Chromecast, Roon Ready, and Spotify/Tidal Connect, so it can replace a full receiver-based setup for TV, turntable, and streaming use.
Cons: Primary/Secondary architecture means one speaker handles every input while the other depends on a wireless or wired Ethernet link back to it - placement is less flexible than a fully symmetric pair. No mic-based automatic room correction, only fixed placement EQ presets in the KEF Connect app. Bass alignment Q (lfq 0.676) sits toward the higher end of typical ported values. At $2,999.99/pair it’s roughly double the price of KEF’s own smaller LSX II.
Full KEF LS50 Wireless II review and specifications →
| App | KEF Connect (placement EQ presets, source selection, firmware updates) |
|---|---|
| Bass Extension (-10dB) | 41.5Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | 51.3Hz (measured, spinorama.org) |
| Bluetooth | Yes, 4.2 |
| Dimensions | 12" x 7.9" x 12.2" (305 x 200 x 311 mm) (12.0 x 7.9 x 12.2 in) 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 |
| Inputs | HDMI eARC, optical, digital coaxial, 3.5mm analog, USB-A (service), Ethernet, RCA subwoofer out |
| Max SPL | 108dB at 1m |
| Output Power | 280W (LF) + 100W (HF) per speaker, bi-amped |
| Weight | 44.3 lbs / 20.1 kg (44.3 lb) for the pair |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- KEF LS50 Wireless II vs Airpulse A100
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