Reference 1 Meta

Reference 1 Meta by KEF

Design:

• Configuration: Three-way bass reflex design for enhanced sound clarity and depth.

Drive Units:

• Uni-Q Driver Array:
• HF: 25 mm (1 in.) aluminum dome with Metamaterial Absorption Technology (MAT) for precise high-frequency reproduction.
• MF: 125 mm (5 in.) aluminum cone for smooth and accurate midrange performance.
• Bass Units:
• LF: 165 mm (6.5 in.) aluminum cone for robust low-frequency output.

Frequency Range:

• Free Field (-6dB):
• Short Port: 40 Hz - 45 kHz
• Long Port: 37 Hz - 45 kHz
• Typical In-Room Bass Response (-6dB):
• Achieves a low end of 30 Hz for deep, impactful bass performance.
• Frequency Response (±3dB):
• Ranges from 45 Hz to 35 kHz for clarity across a wide audio spectrum.

Crossover Frequency:

• 450 Hz and 2.1 kHz for seamless integration between drivers.

Amplifier Requirements:

• Compatible with amplifiers ranging from 50 to 200W, offering flexibility in system setup.

Sensitivity (2.83V/1m):

• 85 dB, allowing for efficient sound reproduction.

Harmonic Distortion (90dB, 1m):

• Less than 0.5% from 40 Hz to 100 kHz
• Less than 0.2% from 200 Hz to 2 kHz
• Less than 0.1% from 2 kHz to 20 kHz, ensuring minimal distortion during playback.

Maximum Output:

• Capable of producing a peak sound pressure level of 111 dB at 1 m with pink noise for powerful listening experiences.

Impedance:

• 4 Ω (minimum 3.2 Ω), compatible with a variety of amplifiers.

Weight:

• 18.2 kg (40.1 lbs), providing a solid and stable build.

Dimensions (H x W x D) with Grille and Terminal:

• 440 x 205 x 422 mm (17.3 x 8.1 x 16.6 in.)