Extrema vs Marten Duke 2
The Duke 2's low-frequency extension is 38 Hz against the Extrema's 35 Hz. Both share sensitivity (88 dB), impedance (4Ω), and ways (2).
AI-generated product photo — not official manufacturer imagery.
LoudspeakersBookshelf SpeakersDiscontinued
Estimated price (community-sourced)
$8,438.34
Around — community and catalog average, updates slowly
About the Extrema
The Sonus Faber Extrema is a two-way, ABR-loaded stand-mounted loudspeaker introduced in 1991. It uses a 28mm soft-dome tweeter, a 190mm mineral-loaded polypropylene-cone woofer, and an Auxiliary Bass Radiator based on a KEF B139 or TDL 3021GT03 bass unit. Its first-order 2kHz crossover uses a 6dB/octave slope. Rated specifications include a frequency response of 35Hz–18kHz ±3dB, 88dB sensitivity at 2.83V, 4-ohm nominal impedance, and up to 200W amplifier power. The cabinet combines black satin lacquer with solid walnut and measures approximately 18.1in H × 10.7in W × 21.7in D; each speaker weighs about 88lb (40kg).
Specifications
Transducer Specifications
Driver and acoustic performance characteristics
- Sensitivity
- 88 dB SPL @ 1W/1m
- Impedance
- 4Ω
- Frequency Response
- 35 Hz - 18 kHz
- Power Handling
- 200W
Speaker Design
Driver configuration and enclosure design
- Configuration
- 2-way
- Driver Type
- dynamic
- Driver Size
- 7.5"
- Driver Count
- 2
- Enclosure Type
- passive_radiator
- Crossover Frequency
- 2.0 kHz
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 270 × 460 × 550 mm (W × H × D)
- Weight
- 40 kg (88 lbs)
- Available Colors
- Black-satin lacquer, Solid walnut
Key Specifications
Sensitivity: 88 dB
Impedance: 4Ω
Frequency: 35-18000 Hz
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions