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Read the Post in new Window Read the Post in Threaded view  Post #1211: A dedicated line: single phase vs. three phase? by N-set on 2013-12-30 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
Firts of all apologies for not going through all 49 pages of the thread and asking probably a well known question with a well known answer.I'm slowly gravitating towards that black hole of a "clean power". As a first obvious step I'm thinking of a de...

Read the Post in new Window Read the Post in Threaded view  Post #5: Altec radial phase plug vs concentric phase plugs by Sean19 on 2016-04-01 
Browse the content of the threads in new Window  Thread: Altec radial phase plug vs concentric phase plugs in Horn-Loaded Speakers  4 Replies 
[quote user="Romy the Cat"] Sean19 wrote:Both versions of 802's have GPA diaphragms both are used on the same horn in a model 19 clone. Over longer periods of time the older versions are easier on my ears. You deal with random result. Pretend that ...

Read the Post in new Window Read the Post in Threaded view  Post #1215: 3 phase to 1 phase by N-set on 2014-01-01 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
Happy New Year to everybody![quote user="Paul S"]N-Set, how do you plan to convert the 3 phase back to 1 phase? Also, it is likely that the whole house system uses the same ground. [/quote] Paul, each phase to neutral is 230V, so as I understand  in...

Read the Post in new Window Read the Post in Threaded view  Post #1: Altec radial phase plug vs concentric phase plugs by Sean19 on 2016-03-28 
Browse the content of the threads in new Window  Thread: Altec radial phase plug vs concentric phase plugs in Horn-Loaded Speakers  4 Replies 
I have always thought my old Altec 802's with the concentric ring phase plug sounded better than my newer 802 G with the Radial phase plug. If i had to describe the difference i am hearing i would say the concentric ring style just simply sound...

Read the Post in new Window Read the Post in Threaded view  Post #34: How does this phase work? by zanon on 2010-06-16 
Browse the content of the threads in new Window  Thread: Macondo’s Midbass Project – the grown up time. in Horn-Loaded Speakers  455 Replies 
I hope this is on-topic.I want to understand more about effect of phase on audio.There is a product, ZVOX, which is alternative to 5.1 surround for home movies. It is stereo system, but it has phase settings (which you can adjust) that make soundstag...

Read the Post in new Window Read the Post in Threaded view  Post #554: My motor-generator screwed up idea by Romy the Cat on 2010-08-03 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
Well, what I told you that I am a Moron and you did not believe me then you were fools. Here is a case to point. This week I deeded to connect my Holrick mechanical motor-generator in use. I did not mean to listen the sound of it. My objectives were ...

Read the Post in new Window Read the Post in Threaded view  Post #557: DIY capacitive static phase converter. by Romy the Cat on 2010-08-03 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
Well, the third phase is a bitch. If I have a n extra motor then I might try this http://www.team.net/www/shop-talk/hm3phase.html but for now I think I will try a regular capacitive static converter with a cap to convert the US st...

Read the Post in new Window Read the Post in Threaded view  Post #22: Entering A New Phase by Paul S on 2008-08-15 
Browse the content of the threads in new Window  Thread: My (Amplification + Acoustic System): what is next? in Audio Discussions  41 Replies 
Well, you did not say it had nothing to do with "space" or "ambience", which are of course at the root of both rear and "scatter" channels, including side and "aimed-away" channels.  Side and scatter channels might not require delay; but th...

Read the Post in new Window Read the Post in Threaded view  Post #41: Recording of playback and phase issue. by CO on 2008-09-15 
Browse the content of the threads in new Window  Thread: Simpson Microphones thread. in Audio Discussions  45 Replies 
Hello Andy,I like your recordings although i am listening on headphones which i normally do not use. My Main setup is not operational right now.They do sound clean, clear and dynamic.Can you let us hear a recording of the live vs playback? This would...

Read the Post in new Window Read the Post in Threaded view  Post #73: Gain, Phase and Corrected Frequency by Paul S on 2011-05-11 
Browse the content of the threads in new Window  Thread: How to get a LOT of SET power. in Audio Discussions  106 Replies 
N-set, this might be a case where you can start with the 6E5P without working it so hard and still have enough gain , and correct as you go, because of the diminished frequency range requirements, and because of the third stage.  Am I talking heresy ...

Read the Post in new Window Read the Post in Threaded view  Post #238: Ok, the main built phase is over. by Romy the Cat on 2010-09-11 
Browse the content of the threads in new Window  Thread: Macondo’s Midbass Project – the grown up time. in Horn-Loaded Speakers  455 Replies 
The back chambers are complete. All primary and secondary elements are glued. The only thing that we did not do for my Sunday, August 12 checkpoint is the final sanding and priming the horns. We decided to do final sanding after the horns are upstair...

Read the Post in new Window Read the Post in Threaded view  Post #4: Phase split by N-set on 2012-09-23 
Browse the content of the threads in new Window  Thread: Staxquiades project in Melquiades Amplifier  19 Replies 
[quote user="N-set"] Anotheraxiom was to make it DC coupled so that there is nothing but tubes in the chain.[/quote]Of course I was not very precise here: not pictured but a 1:1+1 phase splitting input transformeris inevitable...still I believe it is...

Read the Post in new Window Read the Post in Threaded view  Post #24: A phase tester and RTA analyzer. by Romy the Cat on 2007-09-01 
Browse the content of the threads in new Window  Thread: Macondo copying: Horns troubleshooting in Horn-Loaded Speakers  24 Replies 
Ronnie, There are no needs to be funny about it and there are no needs to get a daytime job. A phase tester and RTA analyzer are absolutely obligatory thighs to employ and they are inexpensive and very simple to use. A simplest phase tester you mi...

Read the Post in new Window Read the Post in Threaded view  Post #70: Second phase: revising requirement for my DHT objectives. by Romy the Cat on 2008-12-24 
Browse the content of the threads in new Window  Thread: Single-stage Melquiades vs. DHT amps in Melquiades Amplifier  397 Replies 
In context of the recent changes in my playback regarding the electricity and the consequential effects:  http://www.GoodSoundClub.com/TreeItem.aspx?PostID=9252 I have revised and reinstated my interest in the DHT experiment. In addition to a...

Read the Post in new Window Read the Post in Threaded view  Post #1212: A vote for three phase... by decoud on 2013-12-30 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
...with your amplifier project in mind, remembering the elegance of rectifying three phases....

Read the Post in new Window Read the Post in Threaded view  Post #1463: Phase by Paul S on 2015-11-21 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
John mentioned phase issues. In the US, a residential service it typically referred to as "single phase 240V". For hi-fi it is well to note that US (and similar) 240 is "split" at the service panel into 2X 120V rails that have 180 degree phase shif...

Read the Post in new Window Read the Post in Threaded view  Post #239: Phase and Room Modes by Paul S on 2017-10-25 
Browse the content of the threads in new Window  Thread: A listening room for a domesticated Cat? in Audio Discussions  283 Replies 
Well, this is the difficult time, embedding a changing, complex system into a new, large room.  I am not clear if the sound has changed over time (since you were more positive about the sound, earlier) or if you have just become more aware of aspects...

Read the Post in new Window Read the Post in Threaded view  Post #9: Resonance is only a big issue if you have one point of in phase excite... by rowuk 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 
If one is using multiple in phase drivers, they are spread out over space and help reduce resonance by interference. Another possibility would be a B&W like lightweight matrix enclosure to move resonance UP, where it is more easily damped. A thir...

Read the Post in new Window Read the Post in Threaded view  Post #270: Phase nuances – the last liability by Romy the Cat on 2010-11-29 
Browse the content of the threads in new Window  Thread: Romy The Cat's new Listening Room in Audio Discussions  478 Replies 
I think that nuances with phases synchronization from multiple channels is the last thing that I need to do in my room. I mend the aspects that were exposed in the few recent posts about the practical binaural nature of sound at HF http:...

Read the Post in new Window Read the Post in Threaded view  Post #274: Phase manipulation by zanon on 2010-11-29 
Browse the content of the threads in new Window  Thread: Romy The Cat's new Listening Room in Audio Discussions  478 Replies 
Paul:To build on your thoughts -- I have a sound bar for my TV which manipulates phase so you can pick between the audio seeming to come from a wider source, or from a focused point source. So, for your action movie set it on wide, and for your perio...

Read the Post in new Window Read the Post in Threaded view  Post #6: Beryllium and inversed phase plug by martinshorn on 2018-05-14 
Browse the content of the threads in new Window  Thread: New superlative horn build - ESD acoustic in Horn-Loaded Speakers  92 Replies 
Something they mustve obviously done better than others using beryllium. Judging the sound. In a positive way. The lower 3 are titanium, but all upper 3 are 4/3/2 inch BE sourced from truextend. The suspensenion however is soft and allows excursion.I...

Read the Post in new Window Read the Post in Threaded view  Post #79: Phase alignment of a corner horn? by rowuk on 2021-04-05 
Browse the content of the threads in new Window  Thread: Deep End DIY - Australian take one Macondo. in Horn-Loaded Speakers  87 Replies 
Hi Jeff,I am certain that the best midbass was NEVER in a corner horn. Every fold in the horn is a new resonance. Corner horns need many folds...In addition, if you are very "anal retentive" about phase alignment - how do you integrate a corner horn?...

Read the Post in new Window Read the Post in Threaded view  Post #26: The phase trick is actually not that difficult by rowuk on 2019-07-21 
Browse the content of the threads in new Window  Thread: The open project: a lateral cross-injection. in Playback Listening  25 Replies 
Hafler, Carver, polk and most professional mastering has a technique that actually came from MS recording techniques. A MS microphone array has a "mono" microphone and a figure 8 bipole microphone above it. The stereo spread is controlled by altering...

Read the Post in new Window Read the Post in Threaded view  Post #6: Relative Motion vs. Frequency vs. Phase by Paul S on 2009-10-18 
Browse the content of the threads in new Window  Thread: Tightening to loosening Screws ? no fake... in Playback Listening  13 Replies 
My own experiments along these lines suggest that relative motion of the driver itself is a factor, along with attendent augmentation and/or cancellation of certain frequencies, depending on whether the frequencies and/or resonances in question are u...

Read the Post in new Window Read the Post in Threaded view  Post #27: Setting up tapped horn for proper phase by JLH on 2009-05-05 
Browse the content of the threads in new Window  Thread: The tapped horns: cons, pros and Sound in Horn-Loaded Speakers  57 Replies 
Above I was discussing the new integration process I used to mate the tapped horns with the rest of the system. Below is a graphic to help explain the listening arc. I just moved the tapped horns along an equal-distant arc until the phasing of th...

Read the Post in new Window Read the Post in Threaded view  Post #13: High phase? by rowuk on 2014-11-01 
Browse the content of the threads in new Window  Thread: Volti Audio's Vittora in Horn-Loaded Speakers  12 Replies 
what do you base "should be" on?My experience shows considerable improvement in the "sweet spot" window when we align properly. Things like sibilants become much more natural. The "improved" uhf makes my hf more effortless. The sense of space seems m...

Read the Post in new Window Read the Post in Threaded view  Post #23: The new channel, phase plug and the objectives by Romy the Cat on 2006-08-14 
Browse the content of the threads in new Window  Thread: Adding one more spherical to Macondo. in Horn-Loaded Speakers  92 Replies 
[quote user="cv"]Little suggestion should all else fail - you could have a rudimentary phase plug machined that would give you the same (or similar) compression ratio as the original but only one annular exit path. This might preserve the driver char...

Read the Post in new Window Read the Post in Threaded view  Post #11: Re: A phase plug under 500Hz – my mania of disagreement by ulf on 2006-11-12 
Browse the content of the threads in new Window  Thread: Phase plug for midbass in Horn-Loaded Speakers  23 Replies 
Dear Romy,OK, some more about the midbass.Well, it was not really a surprise to us that the horn without the phase plug was dissapointing. Without the plug we had a horn that was a bit too short, had too large front cavity and less compression than w...

Read the Post in new Window Read the Post in Threaded view  Post #995: Polarity Phase by clarkjohnsen on 2011-12-29 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
"Meanwhile, I suppose we mostly tend to think of "phase" as a 180 proposition, +/-, either/or." Not I, sir! Phase is a matter of degrees. Polarity is a total flip, which is why it's a far better word for the two conditions under discussion.So let's p...

Read the Post in new Window Read the Post in Threaded view  Post #39: 6-channels Milq: the design phase is over. by Romy the Cat on 2007-09-19 
Browse the content of the threads in new Window  Thread: 6 Channel Version of Super Melquiades in Melquiades Amplifier  131 Replies 
OK, it took for a while but at this point I have nailed down all design aspects of the new 6-channels Super Milq, and particularly its input stage. I have listen and evaluated all solutions that will be implemented in there; selected, appraised and o...
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