GoldenEar SuperSub X Subwoofer

GoldenEar SuperSub X Subwoofer

Ultra-Compact Powered Subwoofer with Dual 8-Inch Active Drivers, Dual Planar Radiators and 1400 Watt Class D Amplification

The GoldenEar SuperSub X is a compact high-performance powered subwoofer built for customers who want serious low-frequency output without giving up half the room to a giant box. GoldenEar describes it as an ultra-compact design just a little bigger than a 12.5-inch cube, built around a patented dual-plane inertially-balanced driver array with two horizontally-opposed 8-inch ultra-long-throw active drivers and two vertically-opposed 10.5 x 9.5-inch planar back-wave-driven radiators.

GoldenEar also states the SuperSub X is driven by a 1400 watt Class D digital amplifier, with pressure-coupled loading and DSP control intended to deliver very deep bass from a compact enclosure.

Ultra-Compact High-Output Design

Serious bass from a much smaller enclosure

The SuperSub X is clearly designed to solve a very specific problem: delivering big subwoofer performance from a compact cabinet. GoldenEar says it is only slightly larger than a 12.5-inch cube, while current spec coverage lists overall dimensions around 35.6cm W x 33.5cm D x 32.5cm H and weight around 18.2kg.

• Premium lounge-room systems
• Home theatre rooms where space is limited
• Two-channel systems needing serious bass support
• Buyers who want more performance than a small lifestyle sub usually offers

Dual 8-Inch Active Drivers

More displacement than the size suggests

GoldenEar says the SuperSub X uses two horizontally-opposed 8-inch ultra-long-throw active drivers. The opposed layout is part of the brand’s inertially-balanced concept, intended to focus energy on moving air rather than shaking the enclosure.

• More output from a compact footprint
• Better cabinet control
• More serious transient performance
• Less sense of the box fighting the drivers

Dual Planar Infrasonic Radiators

Passive radiator loading with a lot of surface area

GoldenEar also fits the SuperSub X with two vertically-opposed 10.5 x 9.5-inch planar back-wave-driven radiators. This radiator arrangement is part of how the cabinet reaches deeper bass without needing a conventional large ported enclosure.

• Deeper extension from a compact cabinet
• Greater air movement
• Stronger low-end authority without a huge enclosure

1400 Watt Class D Digital Amplifier

Big amplifier power for a compact subwoofer

GoldenEar’s official description states the SuperSub X is powered by a 1400 watt Class D digital amplifier. Some retailer listings describe the platform as 1500W peak / 750W RMS DSP-controlled, but the official GoldenEar page uses the 1400 watt figure, so that is the safest primary spec to anchor to.

That tells you what sort of product this is. It is not a polite background subwoofer. It is a serious compact performance sub designed to hit hard and stay controlled.

DSP Control and Flexible Inputs

Built for both stereo and home theatre use

Current product and review coverage shows the SuperSub X with:

• Dedicated LFE input
• Stereo left/right line-level inputs
• Variable low-pass crossover control
• Subwoofer level control
• Auto on/off

GoldenEar’s official description also notes that the LFE input is direct-coupled and unfiltered, while the stereo inputs work with the variable low-pass section.

Deep Bass in a Compact Cabinet

Built to sound bigger than it looks

GoldenEar’s official overview leans heavily into deep extension and room-filling output from a small enclosure, while third-party spec coverage lists frequency response figures including 12Hz to 250Hz in some sources and 26Hz to 160Hz (-6dB anechoic) in others. The difference likely reflects different measurement methods, but all coverage points in the same direction: the SuperSub X is designed to produce unusually deep bass for its size.

Specifications

Specifications above are based on GoldenEar’s official overview plus current retailer and spec coverage where the official page is light on dimensional detail.

Detailed Technical Specifications

For those who like to drag out all the useful bits

The Audio Experts Take

The SuperSub X makes a lot of sense because it attacks one of the hardest problems in subwoofer design properly: how to get real bass performance without forcing the customer into a giant box. The dual 8-inch opposed driver layout, planar radiators and big amplifier power give it a much more serious brief than the size first suggests.

For buyers wanting a compact premium subwoofer that can work in both serious music and home theatre systems, this is a very compelling option. It is small by subwoofer standards, but it is clearly not thinking small.

📦 Brand new
🛡 Full Australian warranty
📍 Available in store and online at The Audio Experts