KEF LS50 Wireless Speakers (v1) with Matching Stands - Latest Software

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General:
Award winning speakers from British maker KEF.

Powered version meaning you can hook them straight to your streamer or source.

They can also be controlled by the KEF app.

Upgraded to latest firmware to ensure reliable operation.

Includes matching stands for a finished look. Also comes with box, manual remote.

Cosmetic Notes:
- The front panel of the remote control is missing
- Each speaker has small chips in the paint, leaving a white marks
- This listing includes the original box for the speakers but we do not have the original box for the stands.

Technical Notes:
- Both speakers running on the latest available KEF firmware: MCU v4.1.0, DSP v0.54, and Wi-Fi v3.0.0.

Brand Background:
Since 1961, from our UK home, we have created remarkable award-winning speakers.

From our ground-breaking Uni-Q technology to our bar-setting LS60 Wireless, KEF exists to fill rooms with music as it was made to be heard, to move souls with truly authentic soundscapes.

Now, we're bringing more people with us on our journey to discover the power of great sound.

Ownership:
Unknown

Amplifier Recommendations:
N/A

Connections:
RCA inputs, optical, Ethernet, IEC power cord. USB.

Cosmetic Condition:
6/10 = Fair. Three to four minor scratches, or one major scratch.. See our detailed rating description here.

Working Condition:
Working perfectly and tested in our lab and listening room.

Included:
Unit, remote, manual, accessories, and power cord.

Packing:
Original Manufacturers Packing

Reviews:
Click Here

Original MSRP:
$2,500.00

Recommended Cables:

Kimber Kable - RCA Interconnects - Better

Kimber Kable - Ascent 10 Gauge Power Cord - Better 

Specs:
**Frequency response**45 – 47,000 Hz ±3 dB (depending on settings)**Power output**200 W low frequencies, 30 W high frequencies**Maximum SPL**106 dB**Connections**Bluetooth 4.0 (with aptX), RCA in, Ethernet, optical, WiFi (2.4 GHz and 5 GHz), sub out**Driver type**KEF Uni-Q: dynamic driver with coaxial tweeter

Dimensions:
7-15/16"W x 12"H x 12-1/4"D

Weight:
43 lbs.

Testing Process:

Our speaker evaluation process starts with a visual inspection of all drivers. We are looking for damaged or deteriorating woofer surrounds, dented tweeter domes, and cone damage. We also inspect the speaker connection points for loose or broken connectors.

After the initial visual inspection we connect the speakers to a reference amplifier with our preferred test tracks. With the speakers placed with proper distance we listen to each driver to make sure that they are producing the intended frequencies with no signs of distortion or rattle. During listening tests with test tracks we check for proper stereo imaging and bass response at various listening levels. If there are any audible signs of issues, the speakers are taken to the bench where we perform a frequency sweep to isolate the issue so that it can be resolved by component repair or replacement.

Our subwoofer evaluation process starts with a visual inspection of all drivers. We are looking for damaged or deteriorating woofer surrounds, cone damage, or rubbing voice coils. We also inspect the input connections for damage.

After the initial visual inspection, we connect the sub at our bench and perform a sine wave sweep from about 200Hz down to around 10Hz. During this sweep we are listening for excessive rattle or other signs of improper function. If the sweep passes, we then increase the input level to evaluate how the woofer performs at high output levels. If the woofer has built in crossover features or multiple connection options these features are tested at this time.

We complete the subwoofer evaluation by feeding the unit with an audio signal in conjunction with our house music system to see how it responds to low frequency content in real world conditions while paired with a full range system.