The Ventus-15 is a powerful, compact and easy to transport single 15" subwoofer.

The long excursion 15" chassis has a high power handling 4" voice coil. A low moving mass ensures an extremely precise and at the same time deep, dry bass reproduction. The large reflex port and high mechanical excursion give the bass excellent dynamics and effectiveness.

A removable wheel board can be attached to the front for easy transport. A protective cover protects the surface and ensures value retention.

The two large handles can be grasped from all sides, are in the centre of gravity and ensure comfortable handling.

Rubber feet and stacking troughs guarantee a secure stand without slipping. An M20 flange for distance rods is integrated.


  • At any suitable amplifier with integrated DSP or upstream DSP controller or active analogue crossover. Filter values are freely available for individual adjustment. Limiter values can be adjusted by yourself.
  • Plug&Play on Powersoft amplifiers with ready-to-use presets for Armonia Plus software.
  • About the TENNAX (AllDSP) 19“ DSP-Controller with any suitable amplifier. Filter values are already set, limiter values can be adjusted by yourself (Limiter preset to 32 dB amp gain).

Technical Data

1 x 15" Woofer with 4" voice coil

Lower cut-off frequency
34 Hz (- 10 dB)
43 Hz (- 3 dB)

8 Ω

Powerhandling (AES / program / peak)
1.000 W / 2.000 W / 4.000 W

Sensitivity 1 W/1 m
97 dB SPL (half space)

Sound pressure at (AES / program / peak)
127 dB SPL / 130 dB SPL / 133 dB SPL

2 x Neutrik NL4 IN/OUT 2+/- (4-pole looped-through)

Polyurea coating in RAL 9005

Dimensions / Weight
438 (H) × 580 (W) × 540 mm (D) / 30,5 kg



Transport cover for Ventus-15 (sp)


Transport cover for Ventus-15 (sp) made of stable Codura fabric with padding. All handles are cut out.

Detachable wheelboard for Ventus-15 (sp)


Detachable wheelboard to mount on Ventus-15 (sp). 15 mm wood, 2 x butterfly locks, 1 x handle, 4 x black wheels.

Telescopic rod


Telescopic rod with expanding mandrel system for play-free seating in the tripod base. Height: 110 to 180 cm. Max. load capacity: 35 kg.

Distance rod with crank


Distance rod for cranking with expanding mandrel system which provides a tight and firm fit for the speaker. Height: 92 - 152 cm. Max. load capacity: 50 kg.

Carrying bag for 2 x speaker stand/ rod


Carrying bag for two speaker stands or distance rods, also with crank. Two inside compartments with zipper and sturdy handles. Material waterproof nylon.

Cable Clip for speaker stand/ rod


The cable clip made of robust, durable ABS plastic is specially designed for speaker stands and distance rods with 35 - 36 mm tube. It adheres firmly to the tube and holds the cables securely and neatly in the 24 x 16 mm guide accessible from the outside.

speakON cable 0.5/1/3/6/10/15/20/30 m


Speaker cables in various lengths with Neutrik plug NL4FX. 4 x 4 sq mm, each wire 224 x 0.15 copper, diameter 11 mm, weight 273 g / m. Assembled with some pressed ferrules for maximum contact area and minimal contact resistance.

speakON adapter


Adapter to connect two speaker cables.

SP-Kit Ventus


Self-powered electronic installation unit with 3-channel Class-D amplifier and DSP module for subsequent conversion of all Tennax Ventus subwoofers to self-powered version.

Connection plate with waterproof PG thread cable gland


The angled Speakon connector panel can be exchanged e.g. for installation purposes outdoors against a connector plate with waterproof PG thread cable gland.

Connection plate with Phoenix-contact connector strip


The angled Speakon connector panel can be exchanged e.g. for installation purposes for a connection plate with Phoenix contact plug connector.

Phoenix Contact


Phoenix Contact 4 pol. as an alternative to the Neutrik NL4 Speakon IN/OUT.