987 front mit Schild 1100.jpg
987 front mit Schild 1100.jpg


from 39,900.00

Anyone who thinks a single-driver loudspeaker lacks low-frequency delivery has simply never experienced our award-winning 9.87 System.

This modular hybrid active system consists of two units coupled together to perform seamlessly as one.

  • On top is our acclaimed second-gen passive Pi monitor that can be ordered with drivers of your choice.
  • On the bottom is the mighty Pi-Bass. A woofer extension system that combines the Ripol® speaker design philosophy with our proprietary Acoustic Stealth Technology®. The result is a fully open system that moves close to zero air volume allowing for free placement within a room.

    The lower Pi-Bass module is equipped with 2 x 96dB neodymium woofers each (=99dB). These woofers are extremely fast and are driven by a 250W class A/B plate amp tuned by our electronics team. 

Given this unique combination, this system runs semi-active in that the Pi monitors on top need no crossover and are fed directly from the high-level speaker cable taps from a complimentary amplifier like our Voxativ T-211 Integrated (the perfect pairing).

The bottom Pi-Bass woofer module has it's own amplifier and can be driven up to an onboard crossover setting of 120 Hz (recommended) with a full range of EQ to blend into any room.

We suggest a line-level RCA connection from your preamp to the Pi-Bass for highest fidelity (although a high-level speaker cable connection is also possible.)

The result is the most powerful full-range system the industry has ever experienced linear down to 20Hz in low-frequency slam.



Frequency Response
20 - 20.000 Hz

VOXATIV AC-PiFe or others

Efficiency max.
110 dB / 1W / 1 m

50 W sinus

Dimensions (W x H x D)
16 x 47 x 16" (40x120x40cm)

Piano Finish, white or black

150 lbs (67kg)