Category Archives: News - Page 3

Seasons Greetings

Meeting Report: December 2021 – Loudspeaker Power Ratings – Michail Barabasz

On Monday December 13th the AES Melbourne Section mounted yet another Zoom online meeting.

Over thirty members and guests joined the meeting to hear Michail Barabasz of Lorantz Audio Services present on the topic of Loudspeaker Power Ratings

Title slide

After welcoming everyone, Section Chair Graeme Huon introduced Michail who started his presentation with a brief history of his career at Plessey Rola (pre-1975), including and his involvement with the 1977 Australian Standard for Sound System Equipment (AS1127, Part 5 – Loudspeakers), before establishing Lorantz Audio Services in 1976.

Continue reading “Meeting Report: December 2021 – Loudspeaker Power Ratings – Michail Barabasz” »

December 2021 Meeting Notice: Michail Barabasz – Loudspeaker Power Ratings

Meeting Notice

The next online meeting of the AES Melbourne Section will be on Monday 13th December 2021 at 7:30pm.

Michail Barabasz, of loudspeaker maker Lorantz Audio will present on the topic of:

Loudspeaker Power Ratings

and other myths.

Modern class D amplifiers are capable of kilowatts of drive and care little for the load impedance. Can loudspeaker voice coils and suspensions handle this?
Dedicated amplifier/loudspeaker combinations in active boxes can have sophisticated protection programming.
How effective can this be?
How should the standards for loudspeaker testing and power ratings tackle this?

Continue reading “December 2021 Meeting Notice: Michail Barabasz – Loudspeaker Power Ratings” »

Meeting Report: October 2021 – From Stradivarius to Speaker – Joe Hayes

On Monday October 11th the AES Melbourne Section mounted another Zoom online meeting, due to Victoria’s continuing and now world record-breaking pandemic lockdown situation.

Over thirty members and guests joined the meeting to hear Inventor and Vastigo Ltd CTO, Joe Hayes speak on his DaS AuReality loudspeaker technology in a presentation entitled:

From Stradivarius to Speakertechnology for improvements in sound delivery and room acoustics treatment”

The DaS AuReality system claims to reduce the impact of room acoustics for the listening experience and produce a listening experience free of sweet spot limitations by using an algorithm to create Diffusion at the Source (DaS))

Joe Hayes describes the benefits of DaS AuReality (Screenshot -Rod Staples)
Continue reading “Meeting Report: October 2021 – From Stradivarius to Speaker – Joe Hayes” »

Time Zone Reminder for 11th October meeting

A reminder that Melbourne will have moved into Daylight Saving Time before the 11th October meeting.
The UTC offset will then be UTC +11
Below are the times for some locations, courtesy of https://www.timeanddate.com/