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The Audio Tailor Voted #1 Australian Hi Fi Store 2021 + 2022

Monitor Audio - Radius 380 - Subwoofer

Save $149.00
Original price $1,489.00
Current price $1,340.00

Thank you for visiting The Audio Tailor.

We’re Stuart, Gabby, Nathan and Vaughan. It’s a pleasure to have you here!

The first question we get from customers usually starts with, “What’s the difference between...”

When you’re shopping for new speakers, a turntable, or even thinking of putting together that home theatre of your teenage dreams - you’ll likely be faced with stacks of comparisons.

Why would I buy the Bluesound Pulse 2i when the Flex 2i is half the price?

Is Monitor Audio the best?

Should I wait for a sale? Or get this now? What will I be missing out on when the new model comes out next year?

Endless questions. Lots of FOMO. Loads of hmm-ing and ha-ing.

And there SHOULD be.

Because you don’t go to a Hi-Fi store and drop $2000, $3000, or $15000 on something you're not 100%, positively, secure-in-your heart sure of.

It’s a lot of hard-earned money on the line.

Imagine doing hours of your own research. Reading up the suppliers’ websites, taking notes from Hi Fi blogs, categorizing the differing opinions as you trawl r/audiophile. You know what you’re getting. You’ve narrowed the online stores down to the final five. You’ve checked and re-checked that you’re getting the best deal. You’re sure you’re not getting ripped off by shipping.

You hit the “Checkout” button. Momentary relief!

That is...

Until your speakers haven’t arrived by the estimated delivery date and you have yet to hear a peep about its progress.

Until your new turntable arrives with a crack in the dust cover.

Until your long-awaited amp set-up fails to deliver the kind of sound you had in mind. Now you’re not even sure if you got the right one anymore, or how to troubleshoot it.

What could possibly be worse?

What about: No after-sales service. No phone number to call. And no one responding to your tickets.

Not to mention the hundreds of man hours you’ve already lost on reading layman opinions from the likes of Graham H. from Melbourne and Sarah D. from Perth; dutifully scrolling through pages and pages of reviews. Torturing yourself by looking for all the ones with less than 3 stars... when you could have been sitting back and diving into a whole new world of immersive sound and deliciously satisfying body vibrations.

Would it make sense to go to audio specialists that know brands, specs, and installation like the back of their hands?

Should you spend less time on weighing up pros and cons and more time enjoying good music?

Want to get the absolute best home theatre for your budget and surroundings without the weight of 100++ brand offerings bogging you down?

We like to think so!

And that’s why we’re here. Two things to know about us:

Thing 1: We were voted Australia’s 2021 Hi Fi Retailer of the Year (Yay! And THANK YOU!)

Thing 2: This is purely because we are sound specialists and audioheads - NOT salesmen.

We got into this business because we genuinely love audio and because we realized there was a lot of faceless dropshipping in the HiFi industry - and not enough expertise out there. People who keep coming back to us do so because they’re getting attention to detail and individualized solutions that they can’t find elsewhere.

Our clients don’t need to worry about budget, brand name, or size.

All they need to worry about, is talking to us.

Because, when you come to us, you’re in for a conversation.

We want to know the picture in your head.

That final portrait of you back from the flea market with Pearl Jam’s Ten, eager to place it gently upon a turntable you haven’t quite decided on yet.

A summer barbeque in your garden with the boys. Having a yarn around a beer-filled cooler while appreciating the crisp, clear, quality of sound streaming through the open doors of your listening space.

The kids having mates over - quiet for once - immersed in a good movie, lights out, in the comfort of the home theatre that is your pride and joy. “I wish we had one of these at our place!”

Once we know precisely what your ultimate scenario looks like, we’ll want to know what you’re working with.

What kind of budget have you set aside?

What’s the existing set-up look like?

How big is the listening room you have in mind?

How much ambient light is coming in?

Are you running drywall or wood panelling? Carpet or hardwood?

What about room resonance and reflection?

No idea what we’re going on about? No worries. We intend to talk you through all that. Our aim is that you get the absolute best sound system for your home, at a price point you’re happy with, and an aesthetic you can’t help but want to show off.

To get to this end goal, an unhealthy interest in all things audio simply isn’t enough. That’s why we spend countless hours behind the scenes sourcing products from only the most reliable brands and trustworthy suppliers - regardless of their branding and marketing.

We don’t rely on them to tell us what’s good about their equipment. We’ve developed our own proactive testing process to judge what’s what. So you get hands-on knowledge every single time. Coupled with our tight networks and stable supply chain meticulously refined over the years, we strive to ensure that the experience you get at The Audio Tailor is personal, seamless, and painless.

Personal, because it’s uniquely you in musicality, design, and taste. Your options are hand picked by us from amongst some of the world’s biggest, best, and most dependable brands.

Seamless, because we’re only small. You get one of us. Not one of dozens of salesmen milling about the place, working for commission and pushing the most expensive products.

Painless, because we don’t recommend anything until we’re clear about your needs. We follow up with you to make sure everything’s arrived in one piece. For us, the transaction isn’t over until your equipment is safely installed and fully satisfying.


Some of the big things we feel are missing in the HiFi world are:

  • The need for expertise before, during, and after the sale
  • A vast wealth of comparative knowledge, and
  • A commitment to end-to-end service.

At The Audio Tailor, we hope we’ve made it clear that service doesn’t shut off when a problem pops up. It’s an opportunity to tighten the ship we run, bolster our 5-star reputation, and most importantly - make someone’s day.

Hi! We see you’ve actually made it to the end of this page. Love it!

We’d like to end this by giving a shout out to all the enthusiasts and audiophiles we’ve been fortunate enough to work with over the years. It has been a privilege to share our desire, passion, and journey for the purest sound and finest entertainment solutions for your homes and businesses.

Thank you to all our customers - past, present, and future - for helping us chase after something above the ordinary.

To make your audio dreams come true - call, email, or hop on down to our Brisbane store.

We’re looking forward to meeting you!

Product Description

The Radius 380’s twin side-firing 8" C-CAM drivers - one active and one passive ABR - work in tandem with a powerful 140 W cool-running Class D amplifier (double the power of its predecessor). The drivers have no grilles but are colour-coded to coordinate with cabinet finish. A 12 V trigger syncs the 380 with other AV components when the system is activated.



  • 18 mm MDF cabinet construction with internal bracing
  • Cool-running 140 W Class D amplifier with switch mode power supply (SMPSU)
  • Twin side-firing 8" C-CAM drivers - one active and one passive ABR
  • Low pass filter switch – for LFE or Stereo input selection
  • Power switch with ON – Auto- Off/ trigger settings
  • Stereo/ LFE RCA inputs
  • 3 x Pre-set EQ settings – Music/Movie/Impact


Radius Overview

Great Sound With A Living Dimension

Back in the days before anyone had ever heard of ‘designer’ products and hi-fi came with wardrobe-like enclosures and racks of chunky boxes, Monitor Audio invented the Radius Series of stylish and versatile speaker systems. So radical was the idea that it changed expectations of home entertainment forever.

It seems perfectly natural for today’s audio fans to appreciate and expect a strong element of design in every product, but in 2003 it was new. Sure there existed super-chic systems, but they were also super-expensive and not considered as proper ‘hi-fi’. Radius was democratically priced, and from a respected hi-fi brand. It proved that real hi-fi could also be unashamedly stylish, space-efficient and easy to live with. In other words harmonious in every way.

From the options available, music and film lovers could choose a speaker system that not only delivered the wide natural response of a genuine Monitor Audio design, it could also match the shape and colour of their rooms. This was revolutionary. The world’s first widely available ‘designer’ speakers met with worldwide acclaim on launch, followed by repeat critical applause for subsequent upgrades, including a coveted Europe-wide EISA award in 2009.

Imbued with a rich heritage of innovation and energised by our driver technologies, this generation of Radius comes complete with more models, greater versatility and higher, wider, deeper sound. Living with great audio has never been easier.

Perfect Chemistry of Design & Performance

With its jewel-like size and lustre, Radius’ appeal is truly timeless, but its flexibility and performance set new standards. The eight-strong model line-up includes still slimmer versions of the 225 centre speaker and Radius One centre, together with a Radius 200 centre-channel for shelf or rack mounting, and two enormously powerful yet super-compact active subwoofers: Radius 380 and 390.

The precision of the Radius design, available in a choice of the most popular gloss black, satin white and walnut finishes, is emphasised by its smoothly chamfered cabinet edges and the stylish silver profiles of the driver surrounds. Each satellite will look perfectly at home fitted snugly to the wall on an integrated fixing point designed for any standard wall bracket, or Monitor Audio’s own MASM speaker mount, optional for Radius 45 and 90. The Radius 225 and Radius One are complete with their own wall-mounting plates. Naturally the floor-standing Radius 270 tower, the Radius 200 and the ground-breaking Radius subs demonstrate the peerless installation versatility of the Radius approach, mixing acoustically-matched floor and wall designs for maximum audio and visual effect.

Once your choice of Radius speakers is in place, you’ll want to complement their clear, dynamic wideband response with the seismic presence of our wholly upgraded Radius sub cubes.

These ultra-compact bass engines represent a major leap forward in design and performance over their predecessors, generating jaw-dropping deep bass impact from side-firing systems of active and passive drivers – colour-coded to match cabinet finish – and massively up-rated amplifiers. The 380 has twin 8” drivers powered by a 200 W Class D amplifier – twice the power of the Radius 360 it replaces; the 390 uses twin 10” drivers powered by a 220 W Class D amp. Both amplifiers are DSP controlled and the passive ABR drivers are tuned low to produce deep, taut, size-defying bass. Impact, music and movie EQ presets and a 12 V trigger on each cube will help you to customise their miraculous low frequency output to your system and room. It’s all part of the Radius magic.

Technical Features:

  • Pure C-CAM Drivers

Radius subs and satellites owe their extraordinary sound quality to break-through engineering by Monitor Audio’s design team. In all but the diminutive Radius 45, the range utilises C-CAM drivers throughout.

C-CAM is Monitor Audio’s signature driver material, which has been refined over many years and features in all of our award-winning speakers. Ceramic-Coated Aluminium/Magnesium is an innovative material originally developed by the aerospace industry for use as blades in jet engines. It has ideal qualities as a driver cone, being extremely light but also very strong – it doesn’t bend like more conventional materials. This means you hear clearer, wider, more dynamic sound, even at high volumes

  • Tweeters

The Radius 1” (25 mm) C-CAM tweeter has been optimised to deliver the finest and widest performance within the compact Radius cabinets. It benefits from a more efficient rear-venting design, releasing air trapped and compressed at the back of the tweeter dome, and guiding it around the drive assembly to a rear-loading chamber. A more fluid movement of the dome lowers resonance and distortion across a wider operating range for greater accuracy, and a smoother, more natural crossover with the bass driver

  • Bass Drivers

Monitor Audios bass drivers feature concave cone profiles, introduced by our top-of-the-range Platinum speakers. The key design breakthrough for Radius is the integration of new cone geometry and drive mechanisms, involving a continuous radiating dish innovatively coupled to a more efficient drive assembly. Unlike traditional driver cones, the voice-coil of the Radius drivers sits beneath the cone rather than protrude through it, permitting a completely unbroken driver surface for greatly improved strength and fidelity. Extensive research and FEA modelling have allowed us to perfect the relationship between the radiating diaphragm and its motor design, introducing larger motor sizes and voice coils for increased excursion, higher power capability and reduced distortion

  • HiVe II Port Design

Straight from Platinum’s design blueprint, the HiVe II reflex port makes its Radius debut. It’s shaped to have the same effect on airflow as a gun-barrel on a bullet. Rifled grooves inside the port help to accelerate the flow and reduce turbulence, so air moves in and out of the port more efficiently, for a faster more dynamic bass response.

  • Design For Sound

For the first time the very original Radius series gave music and home cinema fans a living dimension to hi-fi sound. Now Radius expands that dimension still further, with more ways to experience genuine fidelity perfectly in-tune with your home.



  • System Format - Active sub-woofer system – Auxiliary (ABR) loading. 18 mm MDF cabinet
  • Lower Frequency Limit - 30 Hz (- 6 dB)
  • Upper Frequency Limit - Variable 40 – 120 Hz @ 24 dB/Octave
  • Amplifier Output - 140 Watts @ 1% THD+N
  • Amplifier Classification - Class D amplifier with Switch mode power supply (SMPSU)
  • Bass EQ Profiles - Music / Movie / Impact
  • Phase Control - 0 & 180 degrees
  • Auto Sensing - Line Level >3.5mV
  • Input Level Requirements - Standby after approximately 15 minutes if no signal sensed
  • Drive Unit Complement -1 x 8” (200 mm) C-CAM long throw driver 1 x 8” (200 mm) ABR
  • Input Impedance - > 20 ohms
  • Mains Input Voltage - AC 110 - 120 V ~ 50/60Hz; AC 220 - 240 V ~ 50/60Hz (Factory Region Preset)
  • Dimensions (Including Amp and Feet (H x W x D)) - 308 x 290 x 305 mm (121/8 x 117/16 x 12")
  • Connection - Stereo RCA in, LFE in, 12v Trigger in (3.5 mm mono mini-jack)
  • Trigger Input - 5 - 12v via 3.5 mm mono mini-jack socket
  • Power Consumption - 200 Watts / 0.5 Watts in Standby (ErP approved)
  • Weight (unpacked) - 10.16 kg (22 lb 6 oz)

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