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     Pages: 15, Posts: 440    Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 


Read the Post in new Window Read the Post in Threaded view  Post #103: Who cares what they think? by rowuk on 2016-08-01 
Browse the content of the threads in new Window  Thread: High Quality Music Server / CD player in Didital Things  169 Replies 
What is the argument USB vs SPDIF all about? Blowing smoke because the music is not in the center of the discussion, rather bogus technical hypothesis.I do not even read that garbage anymore because 1) they have no technical background that relates n...

Read the Post in new Window Read the Post in Threaded view  Post #4: Interesting exercize in carpentry... by rowuk on 2016-07-10 
Browse the content of the threads in new Window  Thread: WE15a plans in Horn-Loaded Speakers  4 Replies 
How can a horn like this even get close to time aligned? Mount a tweeter 5 feet behind the mouth of this horn? I mean if it is only being built to play loud and without any advanced sonic requirements, then it is of limited interest here.I have never...

Read the Post in new Window Read the Post in Threaded view  Post #2: Kind of the wrong place for a speaker like that by rowuk on 2016-06-10 
Browse the content of the threads in new Window  Thread: New Bamboo Speakers Feedback in Audio Discussions  3 Replies 
I can understand wanting to reach out to audio people everywhere, but think that this speaker is a joke for many of us here. It certainly has nothing to do with advanced audio or evolved music reproduction. Even on a DIY site, how much traction does ...

Read the Post in new Window Read the Post in Threaded view  Post #7: Corner horn? by rowuk on 2016-06-04 
Browse the content of the threads in new Window  Thread: Corner Speakers for a new music room in Horn-Loaded Speakers  6 Replies 
How do you even time align a Klipschhorn to any other driver? This is one of Romys axioms and I see no solution with folded horns. I am surprised that it was even mentioned!...

Read the Post in new Window Read the Post in Threaded view  Post #3: Extended highs...... by rowuk on 2016-03-08 
Browse the content of the threads in new Window  Thread: Replacing 802 G and 811 horns in Horn-Loaded Speakers  2 Replies 
I think that most of us here consider horns to be decade devices. That means about 3.5 octaves can be optimally covered. 800-8000Hz in your case. Extending the "highs" another octave means a couple of things. If a horn is "too short" you do not get m...

Read the Post in new Window Read the Post in Threaded view  Post #71: Blow hard by rowuk on 2016-03-03 
Browse the content of the threads in new Window  Thread: A listening room for a domesticated Cat? in Audio Discussions  283 Replies 
Here is an excellent attic solution that will even allow for output to 1 Hz: www.rotarywoofer.com No problems with the suspension sag either! [quote user="Romy t...

Read the Post in new Window Read the Post in Threaded view  Post #1516: My type of On by rowuk on 2016-01-26 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
On in my case is staying at operating temperature. All of my amps are tube......... My point is that if we can insert a UPS into the chain and improve sound, there is hope for the power supply! I don't really know of anyone using the batteries fr...

Read the Post in new Window Read the Post in Threaded view  Post #1513: Now that I think about it, maybe there are easy possibilities! by rowuk on 2016-01-26 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
[quote user="Romy the Cat"]rowuk , you are not wrong feeling that what we do with PS and Mains regenerator is kind of ridicules. Indeed we convert AC to DC, then to AC against and then to DC again. If you use SS then it very much makes sense to ru...

Read the Post in new Window Read the Post in Threaded view  Post #1508: Is it not mad that we convert AC to DC then back to AC to finally get ... by rowuk on 2016-01-25 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
I have often thought that the necessity of a UPS comes from inadequate power supply design. Sure it is easy to buy a product to insert between the audio system and power line but at the end of the day, are we simply giving our power supplies an easie...

Read the Post in new Window Read the Post in Threaded view  Post #8: It is not drag or turbulence by rowuk on 2016-01-07 
Browse the content of the threads in new Window  Thread: A Scratched Horn. in Horn-Loaded Speakers  7 Replies 
Audio is a AC event not DC. There is no wind blowing except for poorly designed ports. There is no reason to "optimize" for lowest "drag". The air molecules bump into one another and really do not travel any distance. There are claims of better sound...

Read the Post in new Window Read the Post in Threaded view  Post #10: Who needs real high end? by rowuk on 2015-12-03 
Browse the content of the threads in new Window  Thread: A random neutralness in Playback Listening  10 Replies 
I often wonder who REALLY needs real high end? Maybe this is the wrong description. If we look at custom made trumpets, violins, guitars for musicians, there are parameters that can be played with to reach a desired goal. The artisans results become ...

Read the Post in new Window Read the Post in Threaded view  Post #1483: Double the voltage, half the amperage, half the noise? by rowuk on 2015-11-24 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
Maybe we in Europe benefit from 230V with half the amperage and not the grounding scheme? Seems to me that line noise would scale down by factor 2 when we get 15V from 230V instead of 110V when using "analog" transformers. [quote use...

Read the Post in new Window Read the Post in Threaded view  Post #1422: I find this fascinating by rowuk on 2015-10-23 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
Thank you for sharing this. I have been experimenting with commercial switching supplies and various filtering schemes, but have not found a winning combination yet. I am very interested in trying this. Please make more info available....

Read the Post in new Window Read the Post in Threaded view  Post #139: And now we know why you are not making progress.... by rowuk on 2015-10-22 
Browse the content of the threads in new Window  Thread: Another time aligned 5-way horn project in Horn-Loaded Speakers  189 Replies 
Wiki and google are not the best, but is a start:https://en.wikipedia.org/wiki/Compression_driverMass related horn issues:http://www.positive-feedback.com/Issue4/edgarinterview.htmhttp://volvotreter.de/downloads/Edgar-Show-Horn.pdfHorn loading:https:...

Read the Post in new Window Read the Post in Threaded view  Post #12: Common knowledge? by rowuk on 2015-10-10 
Browse the content of the threads in new Window  Thread: Copper Mat on a Micro Seiki Gun Metal Platter in Analog Playback  122 Replies 
Who says that a myth told a thousand times becomes more real? Who has actually measured the wear on the stylus instead of just "trusting" the industry?Romy may not be infallible, but he does only post first hand and for sure backs up his posts with f...

Read the Post in new Window Read the Post in Threaded view  Post #4: Resonance is not resonance by rowuk on 2015-09-19 
Browse the content of the threads in new Window  Thread: Back chamber in Horn-Loaded Speakers  9 Replies 
Being a musician, I deal with constructive resonance every day. Tubes resonate as a function of length, boxes resonate as a function of the internal length, width, diagonals. Irregular shapes resonate as a function of volume, horns resonate as a func...

Read the Post in new Window Read the Post in Threaded view  Post #1: Ever thought about how much your pets hear? by rowuk on 2015-09-12 
Browse the content of the threads in new Window  Thread: Ever thought about how much your pets hear? in Audio Discussions  0 Replies 
Thinking about that new supertweeter or tapped horn subwoofer. This picture could give you an idea if something else in the house may be affected........

Read the Post in new Window Read the Post in Threaded view  Post #41: Don't forget the phantom image! by rowuk on 2015-08-20 
Browse the content of the threads in new Window  Thread: Another time aligned 5-way horn project in Horn-Loaded Speakers  189 Replies 
For horns mounted on or near the floor, we have a phantom image below the floor plane. In theory, this means we could make that horn a half circle or similar, with a tremendous advantage in real estate. The theoretical advantages of reduced diffracti...

Read the Post in new Window Read the Post in Threaded view  Post #8: Sorry but I don't believe it by rowuk on 2015-08-02 
Browse the content of the threads in new Window  Thread: 4-way horn system Prelude in Horn-Loaded Speakers  13 Replies 
There is not enough mass there for a 200Hz ring. I don't know what you are hearing, but you need to go back to whoever built these things and tell them your stories. If you really believe that the horn is ringing, add mass, ...

Read the Post in new Window Read the Post in Threaded view  Post #5: Qualifications by rowuk on 2015-08-02 
Browse the content of the threads in new Window  Thread: 4-way horn system Prelude in Horn-Loaded Speakers  13 Replies 
How did you determine that it is the horn. What makes you think that you can damp a horns mouth at 200 Hz. Have you never read what a room does to frequencies under 400 Hz? If not, check this site out: http://amroc.andymel.euMaxx, I think that you ar...

Read the Post in new Window Read the Post in Threaded view  Post #1381: Why do they treat you like shit? by rowuk on 2015-07-21 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
Because they can. There are consumer protection laws in Canada. EXERCIZE them. File suit. Don't call. The people that you talk to are also victims!Due Process. Go for it....

Read the Post in new Window Read the Post in Threaded view  Post #7: Wrong questions? by rowuk on 2015-07-05 
Browse the content of the threads in new Window  Thread: Tractrix Bass horn vs Spherical Wave Horn - Bass loading in Horn-Loaded Speakers  11 Replies 
I am not sure if the questions are wrong. Maybe they are just too early. There are plenty of audio people that pass around opinions as fact. That is a problem and most DIY pride is not in the absolute quality of sound, rather that it works, has wide ...

Read the Post in new Window Read the Post in Threaded view  Post #5: Getting direction to where you need to go by rowuk on 2015-07-05 
Browse the content of the threads in new Window  Thread: Tractrix Bass horn vs Spherical Wave Horn - Bass loading in Horn-Loaded Speakers  11 Replies 
Dear blue,I think that you are reading this site incorrectly.Romy has done an incredible job of documenting his personal audio travels. Consider this site to be a diary in that respect. It has absolutely nothing to do with DIY, except perhaps as moti...

Read the Post in new Window Read the Post in Threaded view  Post #3: Wrong place for DIY? by rowuk on 2015-06-23 
Browse the content of the threads in new Window  Thread: A speaker set with JBL 2225h, JBL 2105h & JBL 2403h in Horn-Loaded Speakers  2 Replies 
If you look around the site, there isn't much DIY effort to just build "anything" here.You could probably get exactly what you are looking for by googling "Econowave" or SEOS though.On the other hand, you could just build what you drew and then tell ...

Read the Post in new Window Read the Post in Threaded view  Post #61: They used to call that driver a squawker by rowuk on 2015-06-18 
Browse the content of the threads in new Window  Thread: Altec Model 19 in Boston. in Horn-Loaded Speakers  61 Replies 
the 110dB efficiency should be met. Just make sure he gets enough Melk-...

Read the Post in new Window Read the Post in Threaded view  Post #131: Alligator clips will do in a pinch.... by rowuk on 2015-06-11 
Browse the content of the threads in new Window  Thread: 6 Channel Version of Super Melquiades in Melquiades Amplifier  131 Replies 
Many things in life are solvable by short circuiting them....

Read the Post in new Window Read the Post in Threaded view  Post #2: Ultra stiff in the head? by rowuk on 2015-04-16 
Browse the content of the threads in new Window  Thread: "SOTA Technology" Speakers from Polymer Audio Rese... in Audio News  2 Replies 
They talk about acoustical alignment, but I couldn't find any. Diamond could be a good membrane material however!...

Read the Post in new Window Read the Post in Threaded view  Post #12: Gearheads beware? by rowuk on 2015-03-10 
Browse the content of the threads in new Window  Thread: My Koshka is meowing in Melquiades Amplifier  13 Replies 
I think the problem is like the chicken/egg dilemma - what needs to be there first? If we don't have the music appreciation first, how "good" can the playback be?. If we have achieved a technical solution, how can that lead to better appreciation of ...

Read the Post in new Window Read the Post in Threaded view  Post #1367: Reading the previous pages is worth it. by rowuk on 2015-02-24 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
I am using an APC RT series UPS. Everything is detailed in the previous pages. I like my unit and now have replaced the batteries twice since 2008....

Read the Post in new Window Read the Post in Threaded view  Post #36: I am the dummy! by rowuk on 2015-02-23 
Browse the content of the threads in new Window  Thread: The new G.I.P speakers. in Horn-Loaded Speakers  36 Replies 
[quote user="Stitch"] rowuk wrote: This guy is certainly trying...... What I have heard shows at least speakers that are very listenable ................ Don't know what kind of listener someone has to be to find them good but even the worst Desig...
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