Conceived and built entirely in Switzerland, the new Stenheim Reference Ultime Two loudspeakers are created using the design approach, components and materials used in the Reference Ultime models, in a more compact product that is easier to accommodate.


Like all of the existing Reference models, the Reference Ultime Two is a full d’Appolito design, with an off-set symmetrical driver layout. Internally, the similarities continue, with the passive crossover sharing the same essential electrical characteristics and quality as Stenheim’s existing designs. Rather than the two, rear-firing bass units of the existing Reference Ultime models, it employs a pair of rear-facing laminar flow reflex ports (similar to those developed for the Alumine Five models), to load the front-mounted 12” drivers.

Stenheim Reference Ultime Two Loudspeakers

Stenheim Reference Ultime Two detail


  • High-sensitivity Reference Ultime loudspeaker system
  • Full d’Appolito array with 2x 12” woofers, 2x 61⁄2” midrange and 1x 25mm tweeter
  • Solid aluminium cabinet with six independent, internal chambers
  • Sealed chambers for each midrange, the tweeter and crossover
  • Separate bass chambers loaded with rear-facing laminar flow ports
  • Passive three-way crossover, using audiophile grade components, sealed in an airtight chamber
  • Frequency response: 25Hz to 35kHz
  • Sensitivity: 95dB, half space
  • Power handling: 400 WRMS, 800 W peak
  • Minimum recommended amplifier power: 30 W
  • Nominal impedance: 4Ω
  • Dimensions: H1535mmxW368mmxD505mm
  • Weight: 231 Kg each
  • Warranty: 5 years
Stenheim Reference Ultime Two Loudspeakers

The $150,000 Stenheim Reference Ultime Two Loudspeakers


$150,000 USD per pair

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