The new 2026 - Master 15 Active Subwoofer

TSS Master subwoofer

The Master subwoofers were developed as an extremely efficient addition to all our Signature speaker models. The speed and dynamics of our horn speakers means a conventional subwoofer could not keep up. Thus we created a custom design to successfully blend seamlessly with the main speakers, in both frequency range and phase response. These aspects  expand and enhance the musical experience.The Master 15 woofers bring our Signature speakers closer to a real concert experience than you could ever imagine.

The Master woofer Design

In terms of design, the Master subwoofer largely corresponds to our loudspeaker models, but with a horn loading and horn opening/bass opening at the front.The front-facing bass port enables direct coupling to the room and the entire system. Thanks to a defined horn length and horn opening, the Master Subwoofer has the design finesse to ensure optimal time axis for both systems.

The Master 15 power and sound

Powerful, synchronized, and robust, with unshakeable bass. Alongside your Signature, the Master Subwoofer. You have to hear and experience the Master 15 for yourself to believe it. Equipped with two powerful 15-inch bass drivers per channel and active amplification with 1400W per channel. With the Master Subwoofer, your Signature speaker will experience such a significant improvement in low bass in larger rooms that your system will be elevated to a whole new level of sound quality.
The Master 15 is most efficient up to 150Hz. With the deepest sub-bass down to the lowest bass frequencies, powerful, fast, defined, and individually adjustable, your system will sound so much bigger and more open, creating an unimaginably large sound stage. Available in two configurations - active with an integrated Class D amplifier solution as standard, or passive for use with an external solid state amplifiers including DSP such as symmetrical connection. With integrated volume control on each side, your system can be fine-tuned with extreme precision.
SHOWN WITH THE 18 SIGNATURE HORN SPEAKERS
Technical Details

Speaker type

Active Subwoofer

Bass Drivers:

2 x 15 inch sub woofers / 4 x 15 inch total

Amplifier:

Class D or for external connection via Solid State amplification.

Power:

1400 watts

Impedance: 

8 ohms

Frequency range:

 up to 150Hz ± 3dB

Dimensions:

178 cm High x 54cm Wide x 70cm Deep

Weight:

94kg

Order processing time:

On request

Warranty:

lifetime

Country of manufacture:

Handmade in Stansstad Switzerland