Atlantis Lab SUBAT33, active subwoofer, 500W

INFORMACIJA

The Atlantis Lab SUBAT33 is a powerful and high-end active subwoofer designed to complement the AT21 bookshelf speaker, as well as other models such as the AT16. It features exceptional bass depth, accuracy and speed, providing a rich and immersive audio experience for both music and home cinema.

Rated power: 500 W
Sensitivity: 97 dB / 1 W / 1 m
Frequency range: 28-200 Hz (-6 dB)
Phase adjustment: 0–180°

DESCRIPTION

Atlantis Lab presents the powerful and high-efficiency Sub AT33 subwoofer, designed to complement the AT21 bookshelf speaker. It also pairs perfectly with the AT16, extending its bass effortlessly. Its aesthetics match the rest of the series—impeccable and elegant. The bass is both broad and deep, fast and tight, delivering an extremely enjoyable listening experience. The Sub AT33 excels in music playback, subtly supporting the lowest octaves, and also roars impressively in home cinema setups.

Impressive Specifications
Like the AT21, the Sub AT33 was initially designed for recording studios and later embraced by audiophiles. It features a 33 cm driver at the front and an unconventional 26 cm driver at the rear, consistent with the series. The cabinet volume allows the bass to be expressed without processing. It reaches down to 28 Hz with an enormous 101 dB sensitivity, making it an ideal partner for the AT21 if you seek the lowest octaves. It comes with a built-in 500 W amplifier—the S500 Atohm—with adjustable phase and crossover frequency. These exceptional features allow it to fit in any listening environment—from large rooms to intimate studios and audiophile living rooms. For optimal integration with the AT21 or AT16, a crossover between 45 Hz and 55 Hz at 12 dB per octave with a 180-degree phase is recommended, although this may vary depending on your room acoustics and subwoofer placement.

Muscle and Style
The Sub AT33 is a large subwoofer that retains Atlantis Lab's signature characteristics. The solid oak side panels are beveled and grooved to eliminate unwanted resonances and ensure a cleaner, more transparent sound. The faux leather covering is well-crafted—the grain is visible yet subtle, the tension perfect, and the ash brown or white colors are timeless and elegant. The entire unit is very stylish, well made, and fits well in a variety of interiors, from modern to rustic.

The Paradox of a True Subwoofer
Thanks to its pure extension of Atlantis Lab speakers and its generous performance, the bass can be both discreet and subtle—making you wonder if the subwoofer is even active; simply turning it off instantly reveals how essential it is. Yet it can also unleash its full power, especially in home cinema, creating a thrilling experience with its commanding presence. In all cases, the response is transparent, clean, and precise, with minimal compression and low distortion. This paradox is the hallmark of the best subwoofers, earning it well-deserved admiration.

TECHNICAL DATA

Origin: Designed and manufactured in France

Type: Active subwoofer

Dimensions (H x W x D): 550 x 530 x 530 mm

Weight: 55 kg

Nominal Power: 500 W

Acoustic Load: Bass-reflex

Sensitivity: 97 dB / 1 W / 1 m

Frequency Response: 28-200 Hz (-6 dB)

Crossover Frequency: Adjustable from 38 to 200 Hz; slope adjustable 12–24 dB (LFE)

Phase Control: 0–180°

Inputs: 2 x RCA, 1 x XLR, 2 x high-level (HP) inputs

Break-in Time: 100 hours

Included: Ball feet and cups

Warranty: 7 years (2 years for amplifier module)