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View Full Version : New toys chez moi


andyrlb
25-06-2023, 09:53
I’ve been waiting to buy the Duson for some years and now finally the wait is over .
Bought some other bits whilst I was there .

https://uploads.tapatalk-cdn.com/20230625/030057ca093d69e2cddbf642754b113f.jpg
https://uploads.tapatalk-cdn.com/20230625/d96322dc9e5c50d28c918a7a94914bad.jpg
https://uploads.tapatalk-cdn.com/20230625/c345057157a0742c58ffa935959e97d9.jpg
https://uploads.tapatalk-cdn.com/20230625/0d121ebeb7fd423229e9a59d624215d6.jpg
https://uploads.tapatalk-cdn.com/20230625/73d09551c1e6f56e881c1a2769bd1d05.jpg
https://uploads.tapatalk-cdn.com/20230625/8b7d8461293c29f152592396e4df4161.jpg
https://uploads.tapatalk-cdn.com/20230625/590ab3fd59036415e1e13482561905cb.jpg
https://uploads.tapatalk-cdn.com/20230625/73a90a20cc3895ed36dda5225339709d.jpg
https://uploads.tapatalk-cdn.com/20230625/9a57a5c1e6d0d385655d048fc1181453.jpg


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Jimbo
25-06-2023, 09:55
Not heard of the Duson
andyrlb
25-06-2023, 10:00
Not heard of the Duson

Duson took over audio analyse when they went or were going bankrupt, Duson made some upgrades to the amps then they went bankrupt too .


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Jimbo
25-06-2023, 10:01
Duson took over audio analyse when they went or were going bankrupt, Duson made some upgrades to the amps then they went bankrupt too .


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Some serious heatsinks on that amp, is it class A?
andyrlb
25-06-2023, 10:03
Some serious heatsinks on that amp, is it class A?

Yes mate, class A . Before Duson did some thermal upgrades the amps didn’t last long so they’re pretty rare , they did a huge power amp too with a matching pre .
The tiny micromega is also class A .


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struth
25-06-2023, 10:04
with sinks like that it must be. not heard of them either tbh..
walpurgis
25-06-2023, 10:30
I've heard the Duson name before, not familiar with the products though. Reminds me of Colin Wonfor designs. Looks interesting.
andyrlb
25-06-2023, 10:32
I’ve currently got it hooked up in the second system just in case , sounds very nice too .


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andyrlb
25-06-2023, 10:36
The tiny micromega microamp is also class A , must be the smallest class A ever .


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Macca
25-06-2023, 11:07
The tiny micromega microamp is also class A , must be the smallest class A ever .


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nothing about it I can find except it's rated at 25 watts into 4 ohms.
andyrlb
25-06-2023, 11:10
nothing about it I can find except it's rated at 25 watts into 4 ohms.

Here’s one of the places where I read class A , could be rumour of course but the heatsinks are pretty big compared to the amp itself.
https://uploads.tapatalk-cdn.com/20230625/65f931ee6ef065fd29dcb9ac7979188d.jpg


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andyrlb
25-06-2023, 11:12
https://uploads.tapatalk-cdn.com/20230625/109985a259cb3b8b683205219733a1f5.jpg
The owners manual


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walpurgis
25-06-2023, 11:25
It may not be biased far into Class A operation, that could explain the relatively modest size of the heatsinks for a 25 watt output.
struth
25-06-2023, 11:39
or only first watt or 2 in A then AB
andyrlb
25-06-2023, 11:43
[emoji1303]


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Macca
25-06-2023, 11:53
or only first watt or 2 in A then AB

I think that's likely. Not that it matters.
andyrlb
25-06-2023, 11:55
I guess I might find out if it gets warm or not ?
To busy enjoying the Duson for now though.
And now our tv is playing up ! Just my bloody luck .


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Barry
25-06-2023, 12:31
It's not pure class A.

A pure class A amplifier will double its output power with each halving of the load. Hence 25W into 8 Ohms and 50W into 4 Ohm, and so on only limited the current capability.

Not surprisingly, class A amplifiers run hot (the maximum theoretical efficiency is 50%, and most amps have a somewhat lower efficiency).



But whatever - Micromega have a good reputation in the world of audio.
Barry
25-06-2023, 12:36
I’ve been waiting to buy the Duson for some years and now finally the wait is over .


https://uploads.tapatalk-cdn.com/20230625/030057ca093d69e2cddbf642754b113f.jpg


That's one ugly-looking mother of an amplifier! :eek:

100W/channel, with the first 20W being class A.
andyrlb
25-06-2023, 12:37
That's one ugly-looking mother of an amplifier! :eek:

How dare you [emoji1787]
I love it


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struth
25-06-2023, 12:51
Think the heat sinks have been enlarged somewhat as original design didn't stay cool enough. It certainly looks like it wants to TAKE OFF. [emoji23]
walpurgis
25-06-2023, 12:55
That's one ugly-looking mother of an amplifier! :eek:

I actually like the 'industrial' look :).
Barry
25-06-2023, 12:58
Yes - it follows the 'industrial brutalist' school of design. :lol: The grey colour enhances the brutalist look.
andyrlb
25-06-2023, 12:59
Tis warm now after 3 hours of use but cooler than my Alchemist Kraken or pm4.


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Macca
25-06-2023, 13:19
I actually like the 'industrial' look :).

Me too.

Too much kit these days either reminds me of something that came off a display in the perfume department at Lewis' or is blander than a London Grammar album.

That's a man's amplifier.
andyrlb
25-06-2023, 13:26
And it won’t fit in the aperture of the tv unit [emoji35]
Well it will but with only a 25mm gap either side , not enough according to the manual. Damn it .


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Wakefield Turntables
25-06-2023, 18:54
Some very nice looking pieces of kit. Please keep us all updated.
andyrlb
25-06-2023, 18:59
Some very nice looking pieces of kit. Please keep us all updated.

I bloomin love it Andrew .


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Wakefield Turntables
25-06-2023, 19:12
I bloomin love it Andrew .



That is a very satisfying outcome! It's one of the best feelings when you happen across of a piece of kit that just sounds "right". Well done mate, I hope it gives you many years of service. ;)
andyrlb
26-06-2023, 06:16
It's not pure class A.

A pure class A amplifier will double its output power with each halving of the load. Hence 25W into 8 Ohms and 50W into 4 Ohm, and so on only limited the current capability.

Not surprisingly, class A amplifiers run hot (the maximum theoretical efficiency is 50%, and most amps have a somewhat lower efficiency).



But whatever - Micromega have a good reputation in the world of audio.

Had the micromega running for around 6 hours yesterday, it gets hot , hot like a class A amp !
I have emailed micromega asking for more info.

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Pigmy Pony
26-06-2023, 14:22
That's one ugly-looking mother of an amplifier! :eek:

100W/channel, with the first 20W being class A.

Yeah it would have looked so much nicer if the LEDs were red.
Lawrence001
26-06-2023, 22:19
Well done mate, I hope it gives you many years of service. ;)

This is Andy, I give it 3 months.
andyrlb
27-06-2023, 04:51
This is Andy, I give it 3 months.

[emoji1787]


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Colin Wonfor
05-08-2023, 08:50
No not guilty, phew got away with that.:eyebrows: