Coax Ribbon C212+ – Top performance in the mid and high frequencies

The new C212+ coax ribbon is at the heart of the Coax 811, operating as a point sound source to enable absolutely precise and natural reproduction. Its enlarged membrane surface provides greater dynamic reserves and lower excursion. Voices, instruments, and fine details appear clear, silky, and perfectly positioned in the room.

UHQD Bass System – four 220-mm drivers for maximum authority

The Coax 811 makes a statement in the bass range:
Two actively driven 220-mm UHQD woofers and two passive diaphragms create a deep, reaching foundation that confidently fills even large rooms. The drivers are manufactured exclusively by SEAS according to PIEGA specifications and play with extreme control, speed, and without distortion.

TIM2 – Next-generation resonance control

The Tension Improve Module 2 puts the massive aluminum housing under controlled tensile stress and reduces even the finest vibrations. This keeps the reproduction free of coloration – the sound is open, detailed, and undisturbed by cabinet influences.

Seamless Aluminum Housing – Design & Engineering combined

The housing is made from a single aluminum extrusion profile – unique worldwide in this size. The elegant, rounded shape comes from designer Stephan Hürlemann and combines timeless aesthetics with acoustic advantages such as increased rigidity and minimal resonance.

Created for large rooms

With a height of 124 cm, a large woofer surface, and enormous volume, the Coax 811 unfolds its full potential particularly in larger living spaces.

Specifications

• Design Principle: 3-way floor-standing loudspeaker system
• Recommended Amplifier Power: 20 – 250 watts
• Sensitivity: 92 dB/W/m
• Impedance: 4 ohms
• Frequency Response: 22 Hz – 50 kHz
• Drivers:
  • 2 × 220 mm UHQD woofers
  • 2 × 220 mm UHQD passive radiators
  • 1 × C212+ coaxial ribbon driver
• Cabinet: Extruded aluminum profile with TIM2
• Dimensions (H × W × D): 124 × 29 × 42 cm
• Weight: 63 kg
  
  

Special Features

• New C212+ coaxial ribbon driver for outstanding dynamics and precision
• Four large 220 mm UHQD woofers for deep, controlled bass
• TIM2 technology for eliminating cabinet resonances
• Seamless aluminum cabinet – globally unique in this size
• Timeless design by Stephan Hürlemann
• Ideal for large living spaces and high-end stereo applications
• Multi-award winning (e.g., Grand Prix 2023, Best Picks Coax 811)

Scope of Delivery

• PIEGA Coax 811
• Speaker cover
• Documentation (user manual & safety instructions)

Piega SA / Manuel Greiner, Alexander Greiner
Bahnhofstrasse 29, 8808 Pfäffikon, CHE
mail@piega.ch
https://piega.ch/
+41 44 725 90 42