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Read the Post in new Window Read the Post in Threaded view  Post #1: Danley's Hyperion by decoud on 2021-05-23 
Browse the content of the threads in new Window  Thread: Danley's Hyperion in Horn-Loaded Speakers  6 Replies 
https://tomdanley.com/hyperion/ No surprises here, but direction of travel may interest some.  ...

Read the Post in new Window Read the Post in Threaded view  Post #23: Russian 6e5p - 6C33C by decoud on 2019-07-07 
Browse the content of the threads in new Window  Thread: More 6E5P-6C33C amps. in Melquiades Amplifier  22 Replies 
https://www.instagram.com/p/Bt61U17AxWC/ No special bias sauce, it seems. ...

Read the Post in new Window Read the Post in Threaded view  Post #1660: Integrated PP by decoud on 2019-05-31 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
I suppose it was only a matter of time...http://www.audio-gd.com/HE/V1HE/V1HEEN.htm...

Read the Post in new Window Read the Post in Threaded view  Post #93: Holy trinity by decoud on 2019-04-13 
Browse the content of the threads in new Window  Thread: New superlative horn build - ESD acoustic in Horn-Loaded Speakers  92 Replies 
Merely the horn-loaded combination of an S2 and a Fane 8M, driven by a full range Melquiades, is a world away from any ordinary speaker. It requires musical intelligence to arrive at that conclusion in the first place, iterating over a million possib...

Read the Post in new Window Read the Post in Threaded view  Post #2: Milspec by decoud on 2019-02-10 
Browse the content of the threads in new Window  Thread: Transparent horns in Horn-Loaded Speakers  5 Replies 
It is an opportunity to pursue the common obsession with all things military: the largest formed transparent structures are probably fighter jet canopies. Acrylic would be optimal, vacuum formed at elevated temperature. Were Jessie dazzle still here ...

Read the Post in new Window Read the Post in Threaded view  Post #3: Range for range by decoud on 2018-12-29 
Browse the content of the threads in new Window  Thread: Trash your “full-rage”, single-driver acoustic systems. in Audio For Dummies ™  10 Replies 
Surely questions of optimal topology need cognizance of the material to be played. If someone listens only to lieder, say, two drivers are sufficient. It is only those of us trying to reconstruct a Wagnerian orchestra that need multichannel breadth....

Read the Post in new Window Read the Post in Threaded view  Post #8: Composite damping by decoud on 2018-08-02 
Browse the content of the threads in new Window  Thread: The ULF cannel for my new listening room. in Audio Discussions  43 Replies 
Low frequency damping is a huge problem in architecture, and that it is poorly solved tells you it is hard. Simplest improvement would be to use a viscoelastic material with better properties than rubber and to embed weights within it. Perhaps obtain...

Read the Post in new Window Read the Post in Threaded view  Post #29: Decoration by decoud on 2018-05-19 
Browse the content of the threads in new Window  Thread: New superlative horn build - ESD acoustic in Horn-Loaded Speakers  92 Replies 
The worst of it is there is no logic in using carbon fibre. They could have made a case for ekoa, but that would require some imagination. ...

Read the Post in new Window Read the Post in Threaded view  Post #82: Solved by decoud on 2018-03-31 
Browse the content of the threads in new Window  Thread: Full range Melquiades implementation in Melquiades Amplifier  81 Replies 
Many thanks, Romy: all is now well....

Read the Post in new Window Read the Post in Threaded view  Post #80: Snubber by decoud on 2018-03-31 
Browse the content of the threads in new Window  Thread: Full range Melquiades implementation in Melquiades Amplifier  81 Replies 
Apologies for the primitive question, but has anyone optimised a snubber for Romy's full range circuit? My implementation does not have one, and I am for some reason now starting to get ringing on start-up of one channel....

Read the Post in new Window Read the Post in Threaded view  Post #4: Dimensionality by decoud on 2017-11-29 
Browse the content of the threads in new Window  Thread: CDs organisation methodology... in Audio Discussions  3 Replies 
The problem is that each record varies along more than one dimension - composer, performer, performance context, etc - whereas the physical organisation has at best two dimensions: column and row on the shelf. One solution is to apply a dimensionalit...

Read the Post in new Window Read the Post in Threaded view  Post #173: Outside by decoud on 2017-07-11 
Browse the content of the threads in new Window  Thread: A listening room for a domesticated Cat? in Audio Discussions  283 Replies 
I know it does not make the project any smaller but is not the sloping part of the ceiling in contiguity with the external roof? I am sure your neighbours will not mind a couple of chimneys coming out of that part of your house......

Read the Post in new Window Read the Post in Threaded view  Post #5: Imperial expansion by decoud on 2017-04-11 
Browse the content of the threads in new Window  Thread: Remote control, problems, money and stupid journalism in Audio Discussions  4 Replies 
He might argue were it not for the market of the deaf he would not have the money to experiment for the benefit of those few with musical hearing. But it is odd that the desire to maximise his creative leverage has not yet compelled him to move into ...

Read the Post in new Window Read the Post in Threaded view  Post #2: Vector of power by decoud on 2017-04-09 
Browse the content of the threads in new Window  Thread: Remote control, problems, money and stupid journalism in Audio Discussions  4 Replies 
Surely the psychology here goes deeper. Lamm does not like the very idea of a remote control, for that subjugates the device to the user. Each installation is for him an altar to his irreplaceable godhead,  worshipers  must come to it in prayer, not ...

Read the Post in new Window Read the Post in Threaded view  Post #140: The locus of intervention by decoud on 2017-03-08 
Browse the content of the threads in new Window  Thread: High Quality Music Server / CD player in Didital Things  169 Replies 
Guys, it is worth thinking about where the computer attributable noise is best intercepted. Since the signal is digital all the way to the DAC, it is sufficient to optoisolate the USB connection. If your DAC runs the USB traffic asynchronously al...

Read the Post in new Window Read the Post in Threaded view  Post #31: Through the roof by decoud on 2016-02-21 
Browse the content of the threads in new Window  Thread: A listening room for a domesticated Cat? in Audio Discussions  283 Replies 
The narrow portion of the midbass horn is surely begging to be inside a chimney, or a structure made to look like one, protruding through the roof. I am sure birds nesting on the back chamber will not impair its functionality, though it may be a pain...

Read the Post in new Window Read the Post in Threaded view  Post #3: Invention by decoud on 2016-01-06 
Browse the content of the threads in new Window  Thread: Danley's optimised paraline in Horn-Loaded Speakers  3 Replies 
Danley, however narrow his focus, is intelligently inventive. It is hard not to wonder what he would do if he had a refined ear to hand, so to speak....

Read the Post in new Window Read the Post in Threaded view  Post #1: Danley's optimised paraline by decoud on 2016-01-05 
Browse the content of the threads in new Window  Thread: Danley's optimised paraline in Horn-Loaded Speakers  3 Replies 
https://patents.google.com/patent/US8488826B2 I know he has implemented it (near) full range, but perhaps it could be a way to shrink low frequency estate? Or will it stand to an uncontorted horn as an insect ey...

Read the Post in new Window Read the Post in Threaded view  Post #5: Physiology by decoud on 2015-12-19 
Browse the content of the threads in new Window  Thread: Monophonic bass: myth and reality. in Audio For Dummies ™  5 Replies 
That is given in the psychophysics: binaural phase offset sensitivity goes up with wavelength....

Read the Post in new Window Read the Post in Threaded view  Post #1445: Complicity by decoud on 2015-11-01 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
The reality is that PP's consumers encourage its business practices. It is rather like a woman complaining about an abusive boyfriend, only to return to him again and again. When those outraged by being lied to, by being kept waiting for years, are i...

Read the Post in new Window Read the Post in Threaded view  Post #1402: Noise level by decoud on 2015-07-28 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
The fan is given as <15dB at one meter, which is about right on my estimation, though I have not measured it in my unit....

Read the Post in new Window Read the Post in Threaded view  Post #1401: The space of alternatives by decoud on 2015-07-28 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
I doubt PP evaluate their products with anything like your playback, or even mine. Their success is likely accidental, but how rare an accident is not something we can conclude on without wider testing. In the EU it is easy, for anything bought onlin...

Read the Post in new Window Read the Post in Threaded view  Post #1398: It has already been done... by decoud on 2015-07-28 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
...by a company in the UK, as discussed here before.http://www.powerinspired.com/ag-series-ac-regenerators-i-25.htmlWhen it comes to amplifiers, those who conflate a topology (e.g. SET) with a particular implementation of it are rightly mocked here, ...

Read the Post in new Window Read the Post in Threaded view  Post #453: Avoiding diagonals by decoud on 2015-04-26 
Browse the content of the threads in new Window  Thread: Romy The Cat's new Listening Room in Audio Discussions  478 Replies 
Diagonals are hard to make attractive in any design: you can avoid them by using plates where a diagonal buttress is required. Have a look at the way Dieter Rams did it in his bookshelf geometry, now marketed by vitsoe (https://www.vitsoe.com/gb/606)...

Read the Post in new Window Read the Post in Threaded view  Post #79: Power supply caps by decoud on 2015-03-29 
Browse the content of the threads in new Window  Thread: Full range Melquiades implementation in Melquiades Amplifier  81 Replies 
I have film in that position; I actually meant the 1000uf+ caps in the power supply. Hard to get those in film.... ...

Read the Post in new Window Read the Post in Threaded view  Post #77: Component drift by decoud on 2015-03-28 
Browse the content of the threads in new Window  Thread: Full range Melquiades implementation in Melquiades Amplifier  81 Replies 
Thanks, Romy. What about drift in the driver bias, etc?I suppose the liveliest component, in terms of dramatic breakdown, is the electrolytics. I have been thinking of changing to film, but in that size they are hard to find at reasonable prices....

Read the Post in new Window Read the Post in Threaded view  Post #73: Melq maintenance by decoud on 2015-03-23 
Browse the content of the threads in new Window  Thread: Full range Melquiades implementation in Melquiades Amplifier  81 Replies 
Romy, now that there is more than one Melq in the wild, may we have some tips on your approach to maintenance, i.e. what parameters/tubes you generally check/replace and how often? I know the 6 channel version will be different, but there are nonethe...

Read the Post in new Window Read the Post in Threaded view  Post #436: Subduing the barbarity of function by decoud on 2015-03-13 
Browse the content of the threads in new Window  Thread: Romy The Cat's new Listening Room in Audio Discussions  478 Replies 
Placing a tool, any tool, even one subserving a civilised function such as playback, within an environment where aesthetic criteria ought to dominate is always tricky. Fidelity to function is rarely attractive by itself, whatever contemporary arc...

Read the Post in new Window Read the Post in Threaded view  Post #434: Volcanic fabric by decoud on 2015-03-07 
Browse the content of the threads in new Window  Thread: Romy The Cat's new Listening Room in Audio Discussions  478 Replies 
You could use this material for the louvers:http://www.ixperial.net/epages/63772936.sf/en_GB/?ObjectPath=/Shops/63772936/Products/BANDMW0011It woven from fibre created by melting volcanic rock. It has a curious bronze lustre, so would go very well wi...

Read the Post in new Window Read the Post in Threaded view  Post #432: Dynamic screening by decoud on 2015-03-07 
Browse the content of the threads in new Window  Thread: Romy The Cat's new Listening Room in Audio Discussions  478 Replies 
There is space for a set of automated vertical fabric blinds to be attached underneath the bookcase...it could even run the length of the entire space, including in front of the alcove. You can of course angle vertical blinds arbitrarily, and perhaps...
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