Adelaide DIY hi-fi meetings

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Hi All
The next AES meeting will be on the subject of designing woofer drivers. The presenter is Micheal Barabasz of Lorantz Audio, a Melbourne company. The company started after Plessey Rola ceased making drivers, and they acquired some of the dies/tooling from the Rola plant.

Micheal is into Finite Element Modelling, so even though the company is small it has some interlectual clout, and manufacturing processes are up to date with CNC machinery.

Tuesday Aug 16th, Astoria Room, Astor Hotel, 437 Pulteny St (near Gilles St)
Meeting starts at 7.30 but you are welcome to join the ctee for a counter tea from 6.00pm. This tends to be where we do our socialising.

The forum software seems to be acting up as I cannot move the cursor while typing.

Cheers

Keith
 
Next meeting, Adelaide section, AES

I don't know if anyone reads this thread as things are rather quiet. I had hoped that by posting info on AES meetings someone may have found something of interest. The next meeting is a visit to the new facilities for the SA Film Corp at Glenside.

Joint meeting AES and Acoustical Society.
This Tuesday Sept' 13th 7.30 pm
Glenside Studios, 226 Fullarton Road, Fullarton
Meet in the front foyer (clock tower building), Off street parking available

There will be four presenters; two from SAFC, one from the acoustic consultants and one from Krix Loudspeakers, who happens to be our Chairman.

Guests are welcome to join the committee for a couter tea at the Arkaba, 150 Fullarton Road from 6pm.

There should be plenty of A/V electronic hardware to see including a 128 channel Harrison mixing console.

Cheers

Keith
 
Lowpoke, I think you are right about it all being a bit difficult to find something that may appeal to the group. Of course the other thing is finding a date/time that may suit everybody.

Tonight we had an AES meeting which was a week later than usual. I was thinking of letting the group know about it but decided against it as it was just the running of an AES tutorial on interfacing/grounding and noise issues. This was an online Powerpoint presentation with audio of the presenter speaking at a convention in Europe.

Something that I may be doing in the future is going to visit one of the AES committee members who lives at Ashton. He has a listening room that he built to create a blameless environment for making post production adjustments to recordings. We, (the AES group) visited a similar setup previously and it was quite a revelation. Everything sounded rather "simple" in the sense that the room was not adding much to the sound. When sitting in the sweet spot and listening with headphones alternately on and off the the difference was amazingly small. This new room is supposed to be an improvement on the one we heard.

I asked Andrew the question, While this room may be a valuable aid to making editing etc decisions would you be happy listening in it for general musical entertainment? His answer was that he would be, but conceded that others may not like its dryness. I am wondering if anyone else in the group may be interested in this visit. I have the advantage of being retired so am not restricted to after hours/weekends. So far he has invited me but I have not asked him to suggest a date/time. If interested, let me know.

Keith
 
Hi Guys, at least those who are still following this thread.

The next AES (Audio Eng Soc) meeting will be called "The History and Design of Audio Power Amplifiers" The presenter is Graeme Cohen, a senior, but very creative consulting engineer. Something of a legend, you may say.

Don't be put off by the title as you may well learn a few things, and it will not be boring!

Tuesday September 25th, 7.30pm
Upstairs room, Directors Hotel
247 Gouger Street.

The committee will be having a counter tea from 6pm downstairs. Visitors are welcome to join us.

Keith
 
Sounds good. I'm keen to hear your horns.

If there's interest, I don't mind hosting a get together at my office. The boardroom could work pretty well. I have my analogue system at work, but would invite others to bring along components we could listen to. It's in Stepney, so is centrally located. This can happen anytime (after business hours of course).
 
After business hours works for me, as I generally work most weekends and am often unable to attend such GTG's.
I would also be keen to hear your horns, I am going to a CNC cutter to talk about getting some molds for some made up before attending the AES meet on Tuesday.
 
Next AES meeting in Adelaide

Hi Guys, the subject of the next meeting is "A Review of Room Equalisation for Playback" and the presenter is Grant Sellek. Don't know a lot about him except that he is an Engineer and an audio enthusiast who prefers objective rather than subjective evaluation of audio hardware.

Venue Upstairs room, Directors Hotel, 247 Gouger St

Meeting starts at 7.30pm. Tuesday 27th November

On this occasion we will be having our AGM from 7.00pm, but other details remain as in previous posts.

Something that I did not realise untill recently is that there are Adelaide members of a forum called stereonet that have periodic audio get togethers. Try Googling them.

Keith
 
Hi Gregg, I tried to send you a PM, but my computer is doing a lot of freezing on this site of late. I didn't realise the GTG was at your place untill I read your post above. If you could PM / email me your address I will try and come along. I have some recent audio acquisitions I could talk about.

Bye
Keith
 
Hi all, The next AES meeting may hold some interest. It is called "How a local boy improved on the best"

The presenter, Peter Morris, has been working on the crossover and other filters in a high end concert touring speaker system for some time. The US manufacturer has now adopted his improvements and users have given them the thumbs up.

He will discuss

Practical application of FIR crossover filters
Controlling speaker resonances with DSP
Controlling directivity with DSP
Impulse response and ETC curves
Producing square waves in multi-way systems with high order crossovers.

7.30 PM Tuesday 16th April, Upstairs room, Directors Hotel, 247 Gouger Street.

At the following meeting on May 21 I will be discussing and demonstrating Mr Linkwitz's latest dipole speaker design called the LX521. These have been working since mid January and are the only ones in Australia. There are only a few pairs world wide. Linkwitz describes them as his final and best speaker design.Linkwitz Lab - Loudspeaker Design
There is a guy coming over from Melbourne especially to hear them, so they have created quite a bit of interest. The venue will be a nearby Uniting Church (Westbourne Park)

Keith
 
AES meeting 21st May

Hi all, as mentioned previously the next AES meeting will be a demonstration of Siegfried Linkwitz's latest dipole loudspeaker design called the LX521.

Westbourne Park Uniting Church
27 Sussex Tce (cnr Monmouth road)
Hawthorn
7.30 PM

The venue is the church itself as the hall is booked by another group. Parking may be available in a car park off Monmouth Road or on Monmouth Road.

The committee will be having a counter tea at the Torrens Arms Hotel, 93-95 Belair Road, Kingswood from 6PM. Visitors are welcome to join us. Bring along some music, and if it departs from Red Book CD standards you will need to bring the means to play it! They are my speakers and I will be the presenter.

Keith
 
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