K1 vs Bowers & Wilkins 805 D4
The 805 D4's sensitivity is 88 dB against the K1's 90 dB. Both share impedance (8Ω), woofer (6.5"), and ways (2).
AI-generated product photo — not official manufacturer imagery.
LoudspeakersBookshelf Speakers
Estimated price (community-sourced)
$10,075
Around — community and catalog average, updates slowly
About the K1
The ProAc K1 stand-mount loudspeaker builds on the acclaimed K Series floorstanders, delivering their signature open midrange, precise bass, and expansive soundstage in a compact format. It uses a specialist 165mm (6.5") Kevlar cone bass/mid driver covering frequencies up to 3kHz and slightly above, paired with a ProAc ribbon tweeter featuring an Alnico magnet, rear chamber damping, and a diaphragm as light as a human hair. The cabinet incorporates the unique K Series design with vent porting, optimized for stand-mounting. A dedicated 50cm K1 stand is available separately to enhance performance. Despite its size, the K1 offers impressively deep, accurate bass down to 28Hz, an almost electrostatic-like midband transparency, and extension to 30kHz, making it ideal for smaller spaces seeking reference-level audio.
Specifications
Transducer Specifications
Driver and acoustic performance characteristics
- Sensitivity
- 90 dB SPL @ 1W/1m
- Impedance
- 8Ω
- Frequency Response
- 28 Hz - 30 kHz
- Power Handling
- 150W
- Min. Amplifier Power
- 10W
- Max. Amplifier Power
- 150W
Speaker Design
Driver configuration and enclosure design
- Configuration
- 2-way
- Driver Type
- Kevlar cone bass/mid driver, ribbon tweeter with Alnico magnet and rear chamber damping
- Driver Size
- 6.5"
- Driver Count
- 2
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 210 × 569 × 401 mm (W × H × D)
- Weight
- 16 kg (35 lbs)
- Available Colors
- Black Ash, Mahogany, Cherry, Walnut, Oak, Silk White, Natural Oak, Rosewood, Ebony, Tamo Ash, Dark Eucalyptus, Liquidambar
Key Specifications
Sensitivity: 90 dB
Impedance: 8Ω
Frequency: 28-30000 Hz
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions