Perfect Surround for All

The Y4 Professional Hi-Fi System is the culmination of 6 years of research and development to produce a sound system for the modern world.
It will enhance any listening experience and produces the very best sound possible from your television , DVD/CD player, iPod, games player or any other stereo device




“The sound from this speaker was absolutely UNREAL and nothing like I’ve ever heard before! Although I was listening to it on a semi-open area on the deck, the sound circulation was amazing and felt like it was coming from every direction. It’s astounding how you can clearly hear each instrument individually. This is absolutely the product to own, highly recommend it.”

– Hasmat Najib, Melbourne

“(I) heard sounds in various artists’ recordings that I didn’t realise were even there. Amazing clarity and sound quality! This is how musicians wanted you to hear their music.”

– Jason King, Victoria

“Incredible sound and something I’ve never experienced before. Could hear the layering of the instruments fluently and straight up blew me away. Definitely recommend The Y4 and very excited to see these guys shake up the industry.”

– Chris Gordes, Victoria

“With the Y4 the music is suddenly everywhere, nothing like the surround sound I grew up with in the 80s. I’ve been listening to old tracks and getting blown away by how much music went missing in the stereo format. This amazing tech fixes all that.”

– Roy Fleming, Victoria

“We had the privilege of having the first Y4 set up at home. We had a Dark Side of The Moon session and WOOHOO it is amazing! The clarity, hearing sounds I’d vaguely heard clearly for the first time in literally decades of listening, the sweet spot anywhere in our lounge, the surround depth was/is inspiring, moving and wonderful.”

– Robert Coller, Victoria

“All the music came with excellent presence and on many occasions, sounds appeared which had not been apparent before. The piano and guitar sounded like they were in the room and the clapping from a live audience seemed to move around the room.”

– Fred Sullivan, Victoria

“I thoroughly enjoyed the play around between the speakers with clarity and especially the atmospheric nature of the music. This listening experience was something incomparable. I certainly felt in a completely different and far superior space.”

– Souil, Melbourne

“Going through all my old favourite songs on the Y4 has been an amazing experience, it’s like listening to them for the first time, I’m hearing instruments and vocals that I’ve never heard before. The sounds you hear in some of Michael Jackson’s songs are mind-blowing … he would have been thrilled that we can now hear some of the genius he actually recorded that was lost when played on other audio systems.”

– Jen Dentoom, Melbourne


Listening to your favourite tracks on the Y4 will give you a similar experience as listening to them live at a concert; every instrument, every voice, and every percussive sound is heard and nothing is lost. On tv you can hear the footsteps running right beside you, vehicles coming at you from behind and the faintest of sounds like a bird in a tree. or the rustling of the leaves in the distance.


Involve Surround takes your music, films and other audio tracks, listens to them in real-time and sends them out in Surround sound to the speakers in the direction they were originally recorded from.  This means that you hear the sounds individually like you would if you were listening to them live.  Normally sounds are all bunched up into stereo; all the instruments, voices and sound effects are grouped together into 2 tracks which go to the left and right speakers.  Because of this you lose many less dominant sounds and voices as they are overpowered by the more dominant sounds.


No longer is there a race for the perfect seating position. Involve Audio’s Sweet Spot Technology allows you to listen to a full, rich and accurate sound stage wherever you are sitting. This translates across all sizes, from your living room to a full blown cinema.

Because of the way sound waves are projected from normal speakers, only the person sitting in the centre of the room hears a balance of all the sounds (the sweet spot).  Sitters to the left and right of the room will hear more of some sounds and less of others depending on their position to the speakers.  The Y4 Creates a stable, holographic audio image so that every person in the room is in the “Sweet spot”. 

Y Speakers

For 80 years the concept of the electrostatic speaker that has no magnets, coils and heavy cones was a distant dream of the audiophile but somehow never achievable due to difficulties in manufacture, high cost, low output and huge size.

The team at Involve Audio have refined the electrostatic speaker and produced a bookshelf sized, lightweight, low cost, ultra low distortion, high output, semi “see through”, 5 mm thick speaker. A feature of the technology is virtually zero box resonance and colouration.

Involve Sonic Woofer

The Y Speakers require an equally powerful, detail rich, smooth and transient woofer to match.

The discreet design of our Sonic Woofers allow them to blend into your room while providing the most liquid of bass responses. Their dual internal woofer design gives them a fast response with high stability. Two woofers per Y4 system gives verisatility and enough kick to match your room.

What's Included

Involve Y4 Amplifier
Power Supply | with region specific cable
2x FL/RR Y Speakers
2x FR/RL Y Speakers
2x Woofers

Y Speaker Cables | 2 x 3m, 2 x 15m
Woofer Cables | 3m, 15m
Optical Cable
HDMI Cable

Remote Control
HMDI Converter | with required cables

Quick Start Guide



2x RCA Unbalanced
3.5mm Stereo jack input
Bluetooth | with NFC pairing
2x Optical


4x Y Speakers | FL, FR, RL, RR
2x Configurable Woofer | Mono, Stereo, Front+Rear

Stereo Pre-out RCA
Subwoofer Stereo Line-out RCA


HDMI Converter

Allows connection to HDMI ARC
Optical Output to Y4
HDMI IN/OUT with audio passthrough


10 Channel Class-D Amplifier
650W RMS | 65W per channel
Sift Clip

Processing Sample Rate

24-bit 48kHz | real-time zero delay processing

Frequency response

Speakers | 40hz – 20KHz
Stereo Pre-out | 20Hz – 20kHz
Subwoofer out | 20Hz – 220Hz


165 x 190 x 58 mm (WxDxH)


Amplifier | Powder Coated Aluminium & Steel Case
Y Speakers | Premium Laminated Ply & PMMA
Woofer | Aluminium Composite Panel

Output Modes

Stereo + SST
Involve Surround
Involve Surround + SST


Involve Surround
Sweet Spot Technology (SST)
Involve Electrostatic Speakers
Involve Sonic Woofer Technology

What they’re saying about the Y4

9 reviews for Y4

  1. Jennifer Neille

    Hearing music played on the Y4 was like sitting in a concert or the pub listening to a live band! Going through all my old favourite songs on the Y4 has been an amazing experience, it’s like listening to them for the first time, I’m hearing instruments and vocals that I’ve never heard before. The sounds you hear in some of Michael Jackson’s songs is just mind blowing…he would have been thrilled that we can now hear some of the genius he actually recorded that was lost when played on other audio systems.

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