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wdecho

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About wdecho

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  1. wdecho

    70th anniversary La Scala II

    I believe the left, right designation is for appearance only, for the effect the installer of the veneer thought best. As far as making a difference in the sound, with LaScala's I do not believe it will make any difference which one goes to the left and which goes to the right. Unless something has changed with the positioning of the horns in the cabinet I cannot understand why it would make a difference. If whoever buys a pair puts the left one to the right and the right to the left I do not think it is going to make any difference in the sound. I think it is more of a suggestion for appearance sake. Shu I am envious of you getting such lovely speakers. I am an owner of a '86 year set and the appearance has drastically changed.
  2. wdecho

    La scala cable replacement

    Common 18 gauge copper hookup wire, or 18 gauge copper zip cord, is plenty good enough for me. Solder the wires and then attach connectors. After crimping you can then also solder the wire to the connectors for a permanent never a problem with wire connection. Anything larger than 18 gauge is PIA to work with and overkill in my opinion.
  3. I respectfully disagree as I do fall in the category of less is best, as you are fully aware of by now. I may not have the degrees in education as many members here or the ones that disagree as you have mentioned in the above articles. PWK himself, who I respect and admire as a genius in his field, carried his BS button in discussions with others with degrees in the field of audio reproduction. It was not carried everyday for the average man. In other words very opinionated. I do have an electronic background dealing with repairs of electronic devices most of my adult life and I like to believe enough common sense to know who to believe when it comes to the said above discussion. Another giant, considered in a class by himself, in the audio amplification field is Nelson Pass. His track record during his lifetime proves he is and has been the best designer of audio equipment in our generation and at 66 or 67 years old still going strong designing, building new designs that are sold to the elites of the audio world. If one is not familiar with the man you can start here, http://www.firstwatt.com/articles.html Or at one of the Burning Amp Festivals where designers and engineers fly in from all over the world to hear about his next new design, https://www.youtube.com/results?search_query=nelson+pass+burning+amp+2009. It is easy to have another opinion but it is not so easy to follow up and sell your philosophy in a product to the public or the discriminating ears in the audio field. His philosophy in his designs are less is better. If there is any way to eliminate even one resistor in a design he will do so. He wants as few circuits and components between the audio medium and ones speakers because he among many others deem it as best. There is always going to be disagreements among the elites in the audio field. Deciding on who to believe is the decision we as the ones who they are trying to convince have to make. I respect your opinion but respectfully disagree. I know this subject will not be settled here on this forum. All one can really do is try it both ways and decide for oneself which they like best. I pretty much have done that my entire life and have settled on the one which I prefer now approaching 70 years of age. I have no qualms with those that like and believe in equalization in their system. We are on this forum for discussions and disagreements because of our love of music. No one is right or wrong when one chooses what they like to use for their audio reproduction. If I can eliminate one resistor between my recorded media and my speakers I am going to do so. I believe any adjustments for room environment should be done in the room and speakers and not with the electronics. There are active crossovers where this can be done in the speaker that many here advocate. I have never tried an electronic crossover myself but have done my adjustments with a passive one. The crossover is the easiest place to make adjustments for your particular room. The crossover is the brains of a speaker system. Again, I respect your opinion and others here that disagree.
  4. I know in the last few days we have had heated discussions, disagreements, and I hope you will accept my apology if I have said anything that offended you personally but I would like to comment on your post. You are correct. In better test equipment as well as better audio amplification components there is installed an AC line capacitor for this very reason. To clean up all the noise present in your AC lines. The noise on a electrical line can easily be seen on an oscilloscope along with the fundamental signal.
  5. There are definitely persons that have extraordinary hearing above the norm. Nelson Pass uses some of the best of them when testing a new design of his. Most of his amplifiers include a touch of 2nd harmonics, we are talking fractions of 1%, that can be either positive or negative 2nd harmonic waves and some of those individuals can point out and tell the difference between the two. One of them was a older tester he used and he probably was an exception but it does show that like all things some are more talented than others. Even Nelson admits he cannot tell the difference as well as them between the positive or negative 2 harmonic wave. As with any long post we have strayed far from the OP on H111.
  6. wdecho

    F/S Altec 511B horns with K55M drivers

    I have used the exact same combination with my LaScala bass bin. More efficient than the stock K-horn, LaScala so it would need some attenuation for use with your woofer. Larger soundstage is biggest difference I noticed. when it comes to horns bigger is most of the time better. Excellent deal for someone that likes to play considering you are getting horns that sell for $200 or more on ebay and the excellent Klipsch drivers.
  7. I have never spent tons of money on power cords or cables or for that matter speaker wire. I am like most diy'ers, cheap. Quality components but not extravagant ones. When I build an amplifier I want to hear the design and not expensive parts where the designer get's the credit. My power cords are just plain 18 gauge commercial ones, reasonably priced connection cables and decent 18 gauge copper speaker wire. I cannot speak from experience on this matter but I do trust some trusted engineers that say it does make a subtle difference. When you get to a certain level of audio reproduction in your home, let's say 90 to 95% excellent the extra 5%, 10% is going to cost lot's more money to achieve. I saw a video last week of a Japanese guy who paid for a power company transformer to be installed at his residence solely to provide the best cleanest AC current possible for his audio system. Some take their audio very serious.
  8. I should add on why I am such a proponent of using L-pads on the mids and highs. It makes it so easy to dial a system in for your environment. You perceive that your system is lacking bass compared to the mids, dial both the mids and highs down a few db's and you have more bass. Too hot in the highs dial it down in down a few db's. By using them, just 2 variable resistors installed on the driver electronically will cure most complaints when one thinks they need tone controls and not effect the signal to any significant degree as the many components of an equalizer or tone controls. Better cleaner audio signal will be the result. For more technically inclined you can design a different crossover to refine the system even more but you will be surprised on how well L-pads can tailor the sound for your speakers environment. For skeptics and those that disagree, why not just try it and see for yourself. If one does not like the results of installing L-pads they are so easy to remove and put the driver back just as it was. You do not have to touch the crossover, they only have to be connected to the two wires going to the driver. You can do it with test leads with alligator clips and will not have to do any soldering to begin with and will not have to cut any wires. Nothing will be lost but the price of a meal on the town with your girl. As far as the warranty, my experience is that seldom if ever do the maker require one to send the entire speaker back. Too cost prohibitive and they will only require one to just send the driver in question to them for inspection and replacement if needed. There really is no need to make such a fuss about so simple a device as the two variable resistors in a L-pad. Just try it, you may like the results. Many speaker manufacturers still include L-pads on their speakers and I wish Klipsch did as well.
  9. I have heard from notable audio designers that cables and power cords as well can and do make a difference. But most say subtly. The saying is do not spend more on the power cord than you did for the amplifier. I should add that Firstwatt did in the past sell a buffer called the B1 which is the primary one I use for volume control that is excellent if you can find one in the used market. Someone on this forum was offering one for sale in the past week or so. The retail price was $1000. but it is easy to build for a diyer. The design has been published and available. I have built 3 of them preferring the B1 version 2 as better. Simple with few parts.
  10. Producing music is much different from amplifying what the producer installed on the recorded medium. As a person that believes in the opposite view point, I hope you will accept it, I would never introduce any sound effect device between my line stage, often called a preamplifier, and my power amplifier. As an example of an average audiophile that just spent $3000 for a Firstwatt F7 and bought one of Passlabs simplistic line stages that start at the price of $6000 and go much higher believing that less components sound best. There is no way he would consider putting an equalizer between line stage and amplifier full of components that would be a nightmare for a parts guy to inventory if one included the many parts that a op-amp has inside it. Of course there would be nothing wrong with having an equalizer to install between the line stage and power amplifier to play with at certain times, nothing wrong with that at all if one understands it is a sound effect device. From experience adjusting my speakers and the crossover for my room when you get them both right no other forms of equalization are ever needed. If one is required you do not have your system dialed in. Having over 20 complete amplifiers most all class A either tube or SS and there are differences between them. Some better bass, some better mids and some better highs but all sound respectable in their own right or I would tear them down and use the parts to build a better one. I accept your view point, and find nothing wrong with it as such, but my view point as many others that buy the higher end products is much different. I've used and had tone controls in the past and used them as well but have not found a need for such in many years.
  11. wdecho

    Speaker Switch with tube amps?

    No. That kind of switching just removes or adds a component, components, inside the circuit of the amplifier. One would need to see the specific schematic of the said amplifier to understand what the designer used to achieve this. Usually not complicated at all from the schematics I have seen.
  12. wdecho

    Speaker Switch with tube amps?

    Yes, simple but it must be done with speakers of the same impedance rating, lets assume 8 ohm ones, and done with a separate switching box and not part of the amplifier. Tube amplifiers have output transformers with a specific load assigned to the outputs. Some have taps for an additional impedance lets say 8 ohms and 16 ohms as an example. To do it as part of the amplifier you would have to have another set of output transformers installed on the amplifier, not a practical addition. All you need is a speaker selection box that is sold at many locations. An example would be a Best Buy audio selection listening room where one can switch between speakers for comparison using the same amplifier.
  13. On the subject of tone controls vs the simplistic approach to amplification, there will always be two camps with no outright winner. Very much like the debate of CD's vs vinyl. From some of my post one can guess which camp I belong to. I am a devoted follower of Nelson Pass and his view of simplistic circuits. His Firstwatt F5 amplifier was a tremendous success consisting of eight semiconductors and 23 resistors. He envisioned a circuit using only 4 transistors and 4 resistors and the newest Firstwatt amplifier was born, the Firstwatt F7 with a lower price tag than any of the Firstwatt amplifiers, $3000. In the final product he did think it necessary to install 1 more resistors to install what is called positive current feedback being that the semiconductors used were lateral mosfets that have a very low damping factor if positive current feedback is not installed to "dance" with the slight amount of negative feedback. This raised the damping factor and produced a very popular amplifier. What amazes me is the biggest market for Passlabs and Firstwatt products is overseas and not here in the United States. Probably shows that there are more serious listeners of music elsewhere in the world. Anyone that cares to read more about the F7 and it's design can read about it here. http://www.firstwatt.com/pdf/prod_f7_man.pdf I have a version of the F7 I have built developed by some the brilliant minds on the Diyaudio forum Passlabs section. The official circuit has not been published but being that Nelson released so much details on the design it was not that hard using software for some of the talented members to duplicate the circuit to almost if not the same one the F7 uses. I like it and have the circuit installed in a proper case which not all the Firstwatt designs I have built have found a permanent home. I believe there are some members on this forum that have purchased the F7. All that matters is that people here are enjoying music with whatever approach they deem best and of course purchasing Klipsch speakers. This is the only social media forum I participate in being my love of Klipsch speakers and horns because I think of other social media forums as a waste of my time. No one has asked about what I think of the full range open baffle speaker setup vs horns. Short answer is it does sound very nice but what is missing is the details in the recording that you do not hear with the a conventional speaker and the loss of dynamics only horns can produce. I also find I miss the live performance feeling while listening. As an example in one of my Linda Ronstadt Nelson Riddle recordings with horns on one song you can hear in the background someone counting "one, two, three, four before the music begins. You do not hear that with the full range speaker and it is a 94db speaker. I do find the open baffle full range speaker to be enjoyable though but it will never replace my horns.
  14. I once new an old man who claimed him and his wife had never had an argument over the 30 years they had been married. But then he said they had been accused of waking the neighbors discussing things early in the morning.
  15. Well said, and I agree. Life is good, love you brother. I feel much better now that there is no hard feelings but just friendly heated debating. Some of the most heated arguments are in business meetings at a place of worship.
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