Building upon the very successful model, The12 SUB ACTIVE VENTED, and in response to existing customers and dealers asking for a larger active model at an approachable price point, we began work on what has become The16 SUB ACTIVE SEALED. 

The goal was, to create a subwoofer with great extension in an enclosure that was modest in size, and with exceptional punch and speed. We chose a sealed enclosure for The16, as a sealed design delivers the utmost precision and musicality.

We wanted to go beyond a 15-inch cone, and ultimately were able to fit a 16-inch woofer in an enclosure not much larger than The12. We achieved this by designing a narrow but high roll surround. No expense was spared to make this a low distortion yet very high linear excursion surround. For the cone material, we designed a triple material sandwich cone, with a Rohacell core, to be very stiff and light enough to give us the extension we needed for such a small enclosure.

The motor is a triple stack magnet that gives us the magnetic strength to bring the system Q low enough to have high electrical control over the woofer, but still high enough to work perfectly in a sealed enclosure. The woofer has a linear Xmax one way of 21mm, hence 42mm linear Xmax both ways.

For the amplifier section, we use a linear power supply that can be switched between 110V or 230V, depending on the markets where it is being used. The amplifier section has a 1kW (RMS) output, with tons of dynamic headroom for undistorted peak dynamics.

The connectivity remains the same excellent design of our model The12, with Balanced XLR inputs for LFE, which is a full range design with no processing, allowing the surround processor to handle bass management. Two RCA inputs for stereo applications complete the input section, featuring a variable crossover from 50 to 150Hz. There is also a variable phase control and a gain knob to perfectly level the woofer. An auto sense feature turns the subwoofer on automatically, or there is the option to remain on at all times.

The enclosure is made from HDF, with a black ash vinyl wrap that looks clean and is easy to maintain. The16 comes with a grille covered in a black stretch fabric, that can be removed if desired.

We highly recommend auditioning The16, as we believe it represents class-leading performance anywhere near its size, and confidently demonstrates its place in the complete line of Ascendo subwoofers.

Specifications (selection)

Speaker type

16" forward-firing compositive cone woofer, 3" voice coil


20 mm Xmax excursion each direction (40 mm linear), voice coil remaining in homogeneous magnetic field

Passive | Active

ACTIVE, Amplifer (Class D)



SPL (Peak / half space 2pi)

Measured Data 
125 dB

Frequency range

Measured Data CEA2010B
20 Hz - 150 Hz

Directivity horizontal x vertical in Deg°


Output power

1000 W

Power voltage range

110 V or 220 V / switchable

Input sensivity RCA 

100mV / 22 KΩ

Input sensitivity XLR Balanced

150mV / 47k

LFE input

1 x XLR balanced full range no crossover applied

Line level input

2 x RCA summing / unbalanced

LFE output

1 x XLR balanced

Line level output

2 x RCA / unbalanced


LP crossover 50 Hz to 150 Hz variable, phase 0° - 180°, volume control, auto turn on/off

Protection features

Therminal protection


Internally braced medium density fiber-board (MDF)


20,47 " | 520 mm


18,50 " | 470 mm

Hight with feet 

19,09 " | 485 mm

Depth without grill 

16,54 " | 420 mm

Depth with plug

18,90 " | 480 mm


102,51 lbs | 46,5 kg


Black acoustic fabric


Black ash

Custom colour options 

Piano lacquer, colour of choice, matt or other finishes upon request

Shape customization 

Upon request 


Floor standing with feet


The16 SUB ACTIVE SEALED is supplied with a front cover as standard

Technical modifications subject to change without further notice