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Huge savings for our Beta members!
We already have over a hundred Beta members providing valuable feedback on the Gen-4 system. We have extended our Beta period into the first quarter of next year. This extension allows us to continue to offer final production hardware directly to Beta members at ‘direct’ pricing before retail sales start.
In addition to special pricing, Beta members will have direct contact with us, full warranty (subject to freight), DEQXpert online support, and a capped-price hardware upgrade option. All Gen-4 products, the Pre-8, Pre-4 and LS-200, are available as part of our beta program. Please note that units available for Beta members are limited.
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How many more units do you need to sell? I have a Pre-8 and wait for final software.
Can the new DEQX Gen4 be controlled from an iOS tablet?
When is the deadline to apply for this offer?
What is the manufacturer and model of the DA converter in the Pre-8?
DEQX steals the shows!
DEQX at StereoNet show October 2024 … “how is that even possible?” (show visitor)
At Melbourne's Annual StereoNet show in October, we showcased our Gen-4 products. In our active room, we had the Pre-8 running DEQX-HD-Active, while in our passive room, the Pre-4 and LS-200 drove passive VAF speakers. The show was exceptional, featuring systems priced from tens to hundreds of thousands of dollars.
See previous post - "The DEQX room for passive speakers"
The DEQX HD-Active room
The Pre-8 running DEQX-HD-Active in a 3-way, DIY-built isobaric box, each driven by our prototype Purifi tri-amp AMPY3 ‘active’ tower amps. Our setup, costing around $35k, including two REL subwoofers and DIY speakers, stood out. The enthusiastic responses from most visitors confirmed our impression that our sound was unmatched.
Our success is rooted in the Pre-8's ‘HD-Active’ mode, representing the third generation of active speaker architecture we introduced in the late '90s. Unlike traditional passive Hi-Fi speakers, active speakers—commonly used in professional audio—feature a dedicated amplifier for each transducer (woofer, midrange, tweeter), allowing for precise, steep active crossover filters at pre-amp signal levels. This avoids the limitations and compromises of passive crossovers that handle hundreds of watts post-amplification.
Even six-figure passive speakers at the show couldn't escape these inherent limitations. While many sounded good, even great, they lacked that sense of astonishment. Active setups consistently improve resolution and frequency response, but timing coherence—essential for that “being there” experience—remains a challenge. Our ‘HD-Active’ architecture solves this, elevating active speakers, or upgraded passive speakers, to new heights.
DEQX HD-Active uses steep linear-phase crossovers to eliminate distortion and mitigate midrange ‘on-axis beaming,’ creating a natural, omnidirectional sound dispersion that significantly widens and deepens the soundstage.
We also calibrate the impulse response of each driver to restore original timing coherence and precise frequency-response accuracy.
AMPY2 and AMPY3 are available as either floor standing (shown) or as “bolt on” which is mounted directly to the back of the speaker cabinet.
Despite the rushed setup and testing in less-than-ideal hotel rooms, the speakers, measured close to the baffle to reduce room reflections, performed exceptionally well. The entire setup process, connecting to DEQX-Cloud in unfamiliar conditions, took just a couple of hours with our Pre-8’s software still in Beta. Many attendees told us ours was the best sound at the show, affirming our efforts. StereoNet reviewer said:
“DEQX had put their engineering to work in the Pre-8 to measure the room and speakers and then perform their digital filtering and compensation – in a world-first linear phase filter with 70dB/dec filter slope. Sonically, the room was set up with a near-field listening position. Behind the speaker stand was a neat tall chassis containing Class D amplifiers to drive the speakers. The amplification chassis is designed to fit onto the rear panel of almost any 3-way speaker cabinet.
In the front row of seats, about 1.6m back from the speakers, it was a sonic revelation. The speakers disappeared, the soundstage was out past the box edge and the vocals floating between the boxes. All this is also at low to mid-volume levels - the imaging was very, very good. DEQX has been re-engineering their solution, and this new chassis, electronics, and software presented a superb sonic image for all listeners.” 2024 StereoNET Melbourne Hi-Fi & AV Show Report, Posted on 23rd October 2024.
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DEQX steals the shows!
In our passive room, we showcased the Pre-4 and LS-200 units with two of VAF’s passive speakers. Their new flagship i93 Mk IV 3-way floor standers and the i91 SE co-axial 2-way bookshelf.
The DEQX Pre-4 drove the i91s via a McIntosh power amp and the bookshelf were running from the DEQX LS200 that includes integrated 200w amplifiers...just add speakers!
All DEQX models provide speaker and room calibration, streaming and preamp features including a phono input that we used for the floor standers. Given the limited setup time we DEQX calibrated both the system and room from the listening position. This corrected timing and frequency response for both the room and the speakers at the same time. Calibration took less that 30 minutes but even so, the results were outstanding. StereoNet reviewer said:
“The soundstage was wide, tall and deep, and certainly left you with the impression you were at a live performance. Track after track, your brain convinced you to stay for just one more! This room also had the VAF i91 SE stand-mount speakers on listening rotation, a unique creation with a coaxial driver with dual front ports (above and below the coaxial driver) that can also become a centre channel speaker – a very novel design.” 2024 StereoNET Melbourne Hi-Fi & AV Show Report, Posted on 23rd October 2024.
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DEQX at Ho Chi Minh City, Vietnam Hi-End Show October 2024
The best JBL 4350's have ever sounded!
After completing the Hanoi Hi-End show we moved on to the HCMC Hi-End with Norman Audio. Once again, the demonisation included the DEQX Pre-8 providing the linear phase active crossovers and group delay calibration of vintage JBL 4350’s.
The morning of the first day before the show opened, members of the local Vietnam JBL club were invited for a private listening session, smiles from all attendees impressed by the sound and enlightened hearing these vintage JBL’s with digital active crossovers.
There are many YouTube & Facebook videos of both shows (unfortunately all in Vietnamese).
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DEQX at Hanoi, Vietnam Hi-End Show September 2024.
The future meets the past, the results were amazing!
DEQX attended with our Distributor Norman Audio where a unique sound system with vintage Altec’s. The system included the rare Altec 1803 18 cell horn with a pair of Altec 288C drivers, Altec 511 horn & 817 Bass, due to the early low frequency roll off of the 817’s 4 x REL subwoofers were included to create an active 4-way system.
Powering the system with both single-ended & push pull tube amplifiers.
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Kim Ryrie and Joseph Narai of DEQX Speaker and Room Correction Processors talk about what they exhibited at this year's 2024 StereoNET Melbourne Hi-Fi & AV Show.
For more information: www.deqx.com
🎤 Guest: Kim Ryrie
🎤 Guest: Joseph Narai
🎥 Camera/Editor: Clemente Meulio
Join in the discussion with one of the world's largest online communites for hi-fi. headphones and home cinema: www.stereonet.com
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