Atlantis Lab SUB AT 54 Passive Subwoofer (Each)

The Atlantis Lab SUB AT 54 is a passive large-volume subwoofer with a 54 cm woofer and 250 litres of cabinet volume that plays from 20 to 200 Hz and needs an external power amplifier.

The French manufacturer Atlantis Lab, founded in 1998 by Eric Buy, builds it with an Eighteen Sound driver in a cabinet of faux leather and oak. At 75 kilos it is not a subwoofer you just shift around – so choose its spot well, you will be living with it for a long time.

Why the SUB AT 54?

A 54 cm woofer in a cabinet with 250 litres of volume is designed for depth and headroom: 98 dB sensitivity, 8 Ω impedance and 5000 W power handling. The manufacturer recommends a power amplifier with 500 W. According to the manufacturer, the cabinet volume can be adapted on request.

Because it is passive, you choose which power amp drives the bass – and with it, how it sounds.

What you hear

The manufacturer quotes 20 to 200 Hz. That reaches into the range you feel more than you hear: deep organ notes, synthesizer foundations, film effects with punch. A good subwoofer barely draws attention while playing – you only notice it when it is missing.

Who is the SUB AT 54 for?

For large rooms and ambitious systems in which a powerful power amp is already in place or planned and the bass should carry all the way down. Plain talk: the SUB AT 54 is passive. You need a power amp (recommended: 500 W) and a way to separate the bass from the rest of the signal, for example via a preamplifier or a crossover. In a small room the smaller SUB AT 33 is the more sensible choice.

Our verdict

The deep-bass specialist of the brand: big, heavy, robust and freely combinable with the power amp of your choice. Whether it fits your room and your system, we are happy to clarify with you – call us or write on WhatsApp.

Technical data

• Type: passive subwoofer, large-volume cabinet
• Woofer: 54 cm (Eighteen Sound)
• Cabinet volume: 250 litres (adaptable on request, according to the manufacturer)
• Frequency range: 20 – 200 Hz
• Impedance: 8 Ω
• Sensitivity: 98 dB
• Power handling: 5000 W
• Recommended amplifier power: 500 W
• Weight: 75 kg each
• Finish: faux leather in black or white, each with oak (please state the finish when enquiring)
• Break-in time: approx. 100 hours
• Warranty: 7 years (manufacturer warranty)

Frequently asked questions

Is the Atlantis Lab SUB AT 54 active or passive?
Passive. The SUB AT 54 has no built-in power amplifier and needs an external amplifier; the manufacturer recommends 500 W at 8 Ω. That gives you the freedom to choose the power amp and sound character yourself. We help you with the selection and with integrating it into your system.

How deep does the SUB AT 54 play?
The manufacturer quotes 20 to 200 Hz. That is very deep and reaches into the range you feel more than you hear. How this translates in your room depends heavily on placement and the room itself – we are happy to advise you.

How big is the SUB AT 54?
The cabinet volume is 250 litres and the weight 75 kg each. The manufacturer has not published the exact outer dimensions. Send us your room situation and we will clarify the space question before you decide.

Does the price apply per unit or per pair?
The price applies per unit. In many rooms one subwoofer is enough; if you want to use two, it is best to get advice on placement and tuning.

Why buy the Atlantis Lab SUB AT 54 at HD Zürisee?
Because a passive subwoofer of this size is only as good as its interplay with the power amp and the room. As a hi-fi specialist in Wädenswil, we put this together coherently, with the experience of almost three decades. Call (044 680 22 00) or write on WhatsApp (076 534 22 00).

Goes well with

Matching speakers are in the floorstanding speakers, the right power-amp solution in the integrated amplifiers and preamplifiers, the cable under speaker cables. More from the brand at Atlantis Lab.