Audio Engineering Society - Melbourne Section -

Meeting Report: August 2015 Hugh Dean on Practical Amplifier Design

2015/08/162023/09/15Secretary

Designing Practical High End Audio Amplifiers

On Monday August 10^th 14 members and visitors gathered at the SAE Institute in South Melbourne to hear Hugh Dean speak on the topic “Designing Practical High End Audio Amplifiers”

Section Vice-Chair Graeme Huon introduces Hugh Dean. Photo – Rod Staples.

Hugh presented a potted history of his efforts with his audiophile-grade Aksa designs, giving us an insight into some of his design techniques, and tradeoffs between stability and audio quality.

Meeting Notice: Sept 14th AGM plus Anatomy of a Loudspeaker Driver

2015/08/11Secretary

Notice of Annual General Meeting

The Annual General Meeting of the Melbourne Section of the AES will be held on
Monday September 14^th 2015 at 7:30pm at The SAE Institute – Lecture Theatre, 235 Normanby Rd South Melbourne (directions below)

The short AGM will be followed by a presentation by Michail Barabasz on the topic

Anatomy of the Loudspeaker Driver

Michail’s wide-ranging talk will cover the full range of considerations affecting the successful design of loudspeaker systems. They will include topics like the listening room (and its effect on loudspeaker reproduction), loudspeaker component parts, post Plessey Rola (what has changed in the past 40 years), speaker testing (why measure, what should be measured, and QA testing), how pro-audio, monitor and HiFi speakers differ, and design software. Continue reading “Meeting Notice: Sept 14th AGM plus Anatomy of a Loudspeaker Driver”

Vale Graeme Cohen: News from Adelaide

2015/08/032015/08/03Secretary

Vale: Graeme Cohen – Inventor, Engineer.

Many thanks to David Murphy, Adelaide Chair, for this sad news. Below is the notice he issued.

Members will be saddened to learn that Graeme recently passed away. We offer our condolences to his family and friends. His funeral will be at 11:00 am, Tuesday 4^th August, 2015 White Lady Chapel, 491 North East Rd, Hillcrest SA 5086

Continue reading “Vale Graeme Cohen: News from Adelaide”

Meeting Notice: Mon 10th August … Designing Practical High End Audio Amplifiers

2015/07/202015/08/07Secretary

The next meeting of the AES Melbourne Section will be on Monday 10^th August at 7:30pm
at The SAE Institute Lecture Theatre, 235 Normanby Rd South Melbourne.

Hugh Dean of Aspen Amplifiers (http://www.aksaonline.com) will present on the topic

Designing Practical High End Audio Amplifiers

Hugh will describe the history of his AKSA amplifier design, giving detailed information and methodologies. He will also highlight the importance of establishing an appropriate distortion profile to provide a more realistic merit indicator than a simple THD% figure.

He will challenge the efficacy of the “Vanishingly-small THD Figure” specification approach, offering a different approach to the distortion issue for amplifiers designed to reproduce music.

This should be a most interesting, informative, and thought-provoking presentation.

Continue reading “Meeting Notice: Mon 10th August … Designing Practical High End Audio Amplifiers”