KEF LS50 Meta Speakers in Carbon Black

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General:
Near mint set of KEF LS50 Meta speakers in Carbon Black including their original box and owners manual.

Featuring amazing cabinet construction made with Metamaterial, plus excellent sound from its exclusive 12th Generation KEF coaxial Uni-Q driver. 

These sound big enough to fill a mid-size room but are also perfect for a desk system. I've used them in both scenarios and I cannot believe how good the sound for their asking price.

This is a complete set like the day it left the factory. 

From KEF:
The Worlds first Speakers with metamaterial. LS50 Meta is a highly precise, emotionally engaging loudspeaker built on revolutionary acoustic technology.

Designed around the Uni-Q 12th Generation with Metamaterial Absorption Technology driver array, this solid, compact loudspeaker is capable of delivering detailed sound anywhere in the room.

Performance
Most accurate, immersive sound. Metamaterial absorption technology eliminates 99% of high-frequency distortion for pure, natural sound. 12th generation Uni-Q with MAT driver array for exceptional acoustic accuracy. Driver Performance Optimization for enhanced sonic performance, less distortion and reduced coloration.
Patented off-set flexible port for reduced midrange coloration with exceptional levels of depth and detail.

Design
Attention to every detail
Optimized cabinet design for best acoustic performance
Available in 4 finishes
With mounting inserts to secure on KEF S2 Floor Stand (available as separate item)

Listen and Believe
Really great loudspeakers simply melt away, leaving you with just the music. A pristine voice, perfectly rendered layers of instruments you can lose yourself in, sound so clear it’s as though the artist is there with you. This is what great loudspeakers with the best technology deliver.

SkyFi Cosmetic Notes:
Very good condition overall with some very light marks on the sides.

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:
Single Owner

Connections:
5 way speaker binding posts

General Sound:
Accurate to the recording

Cosmetic Condition:
9/10 = Excellent. Perfect physical condition, gently used. See our detailed rating description here.

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

Included:
Exactly as pictured and described above.

Packing:
Original Manufacturers Packing

Specs:

Two-way bass reflex

Drive Units:
Uni-Q Driver Array:
HF: 25 mm (1 in.) vented aluminium dome with Metamaterial Absorption Technology
MF/LF: 130 mm (5.25 in.) aluminium cone

Crossover Frequency:
2.1 kHz

Frequency Range (-6 db):
47 Hz - 45 kHz

Typical In-room Bass Response (-6 db):
26 Hz

Frequency Response (±3 db):
79 Hz - 28 kHz

Harmonic Distortion (90 dB, 1m):
<0.4% 175 Hz - 20 kHz
<0.1% 300 Hz - 10 kHz

Maximum Output:
106 dB

Amplifier Power (Recommended):
40-100 W

Nominal Impedance:
8 Ω (min. 3.5 Ω)

Sensitivity (2.83V/1m):
85 dB

Dimensions:
11.9 x 7.9 x 11.0"

Weight:
34 lbs.

Link to Manual:
Click Here

Recommended Cables:
Kimber Kable - Speaker Cables

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 200 Hz down to around 10 Hz. 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 adjustments 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.