Short answer: the KEF LS50 Wireless II on measured sound quality, the Edifier R1700BT on price. The KEF LS50 Wireless II ranks #18 of 100 powered bookshelf speakers, rated 4.3/5, at $2,999. The Edifier R1700BT ranks #84, rated 3.2/5, at $175.99, $2,823.01 cheaper.
The case for the Edifier R1700BT: A compact powered pair with analog and Bluetooth connectivity for uncomplicated desktop listening. The catch: Listening impressions suggest a bass-and-treble-forward balance rather than strict neutrality.
The KEF LS50 Wireless II is the better-sounding choice. Erin’s measurements give preference scores of 5.43 standalone and 7.51 with an ideal subwoofer, with a -3dB point around 51Hz. It keeps a wired aux input, which the Edifier R1700BT lacks. It has an adjustable EQ, which the Edifier R1700BT lacks. Watch for: The 3.0dB response span is good but not reference-leading, and dispersion still varies with frequency.
Buy the Edifier R1700BT if the price matters more than sound quality. Buy the KEF LS50 Wireless II if sound quality matters more than the price.
Looking for alternatives? See the complete Powered Home rankings.
Specifications Side By Side
| Edifier R1700BT | KEF LS50 Wireless II | |
|---|---|---|
| Price | $175.99 per pair | $2,999.00 per pair |
| Ranked | #84 of 100 in Medium Size Powered Bookshelf Speakers | #18 of 100 in Medium Size Powered Bookshelf Speakers |
| Dimensions | 10”H x 6.1”W x 8.4”D (254 x 154.9 x 213.4 mm) | 12” x 7.9” x 12.2” (305 x 200 x 311 mm) each |
| Frequency Response | 60 Hz-20 kHz (-3dB) (Manufacturer specified) | 45Hz - 28kHz ±3dB |
| Inputs | Bluetooth, RCA Input | HDMI eARC, optical, digital coaxial, 3.5mm analog, USB-A (service), Ethernet |
| Outputs | None | RCA subwoofer |
| Weight | 14.6 lbs (6.6 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 | 66w RMS Per Speaker | 280W (LF) + 100W (HF) per speaker, bi-amped |
| XLR Input | No | No |
| RCA Input | Yes | No |
| TRS Input | No | No |
| Optical Input | No | Yes |
| Coaxial Input | No | Yes |
| USB Input | No | No |
| HDMI Input | No | Yes |
| AES Input | No | No |
| Aux Input | No | Yes |
| Bass Extension (-10dB) | - | 41.5Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | - | 51.3Hz (measured, spinorama.org) |
| Maximum SPL | - | 108dB at 1m (manufacturer specified) |
| Spinorama Preference Score | - | 5.43 |
| Spinorama Preference Score with Perfect Sub | - | 7.51 |
| Subwoofer Output | - | Yes |
Related Speaker Comparisons
How KEF LS50 Wireless II compares with other leading options:
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- Genelec 8030C vs KEF LS50 Wireless II
- Neumann KH80 DSP vs KEF LS50 Wireless II
- Dynaudio LYD 5 vs KEF LS50 Wireless II
Prices on this page were last checked October 9, 2026 at 8:01 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 R1700BT: $175.99 per pair Amazon eBay
Pros: A compact powered pair with analog and Bluetooth connectivity for uncomplicated desktop listening. Its self-contained design avoids the need for a separate amplifier.
Cons: Listening impressions suggest a bass-and-treble-forward balance rather than strict neutrality. Its analog and Bluetooth connections are less convenient for sources that require optical or HDMI input.
Full Edifier R1700BT review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 66w RMS Per Speaker |
| App | No |
| Aux Input | No |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.1 |
| Coaxial Input | No |
| Dimensions | 10”H x 6.1”W x 8.4”D (254 x 154.9 x 213.4 mm) |
| Drivers | 4” (102mm) woofer |
| EQ | No |
| Frequency Response | 60 Hz-20 kHz (-3dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | Bluetooth, RCA Input |
| Optical Input | No |
| Outputs | None |
| RCA Input | Yes |
| TRS Input | No |
| USB Input | No |
| Weight | 14.6 lbs (6.6 kg) |
| XLR Input | No |
- Links
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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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