A compact, high-tech sub for deep bass

This Varro Reference subwoofer from ELAC uses a 10" aluminum sandwich woofer driven by a 500-watt built-in BASH® amplifier for deep, accurate bass. The rigid, lightweight woofer cone works together with a specially designed HEX (High Excursion) surround for clean, controlled movement, even at higher volume levels. The internal amp gets fed precise signals by powerful dual 28-bit DSPs (digital signal processors) for high accuracy and minimal latency. Maybe best of all, this sub features ELAC's ground-breaking self-tuning Auto EQ feature, powered by a supremely handy Bluetooth control app for your Apple® or Android™ smartphone.

Subwoofer setup made easy

I'm a huge fan of subwoofers that use smartphone control apps. It's a game-changer, because you can sit in the "sweet spot" in your listening room, centered between your favorite pair of speakers, and dial in the bass until it's blended in just right. ELAC's Sub Control 3.0 app lets you adjust the volume and fine-tune crossover and phase settings remotely, but it takes setup convenience a step further with its Auto EQ feature: using a series of test tones and your phone's built-in microphone, it automatically tunes itself to your listening space for clean, accurate bass response.

Want to go wireless?

You'll need to plug this sub into an AC outlet for power. But depending on where you place it in your room, you may find that running a signal cable from your amp or receiver is a bit of a challenge. If so, you can pick up an ELAC AirX2 wireless transmitter (not included). It works with the sub's built-in wireless receiver to send robust audio signals from your components wirelessly, with no dropouts.