Curious_George

Plumbing solder was a joke Cappy!

Actually, I don't care for eutectic solder. My favorite solder is Kester 44 60/40, 1mm. Funny how even solder can be a choice.

You mean that plumbing solder I used when I was 13 years old was the wrong stuff to use when I started to tinker?

There are only a handful of manufacturers that make capacitors anyway. If you knew all the brands that were made in 4 factories you would die laughing. Just like there are only a few who make the laminations for transformers.

Thank you for the offer. Is there a reason you have a stash of them? Do you use them yourself or are they just left-over from upgrades?

I believe a lot of "it" (what we hear or don't hear) has a lot to do with what the Captain has been saying all along... the psychologial aspect of it. Our brain is amazing in what it can do, but it is also amazing at what it can make us feel either through visual, auditory, smell and touch stimulation.

Post way Cappy. Chief said make a new thread, so here it is.

If we all lived in Russia, we would all be driving Lada's. How boring would that be?

I agree. Everyone hears differently due to auditory senses and the shape of your ears. Some people claim to hear things I cannot. Who am I to say they can't hear it? I only know I can't.

Lately, I have had the urge to put "motor run" type caps in my universal networks and re-evaluate. I know this has be done before, but I'd like to try it. Currently, I have Dayton/Audyn in them now and to me they sound great.

True, the affect could be positive (for the end-user), depending on your goal(s). I kinda like the sound of oil seeping around my dielectric... seems to sound good and smooth.

Strictly speaking about passive crossovers; there are many variables that can determine what slope to use for a particular driver or network in the completed loudspeaker system. Playing a system loud places a lot of stress on all the drivers, but especially the midrange and tweeters if they are not protected from out of band frequencies adequately or amp clipping. With the Klipsch Heritage speakers, everyone seems to have their favorite version. It's all personal preference.

Looks like a decent design. 6Y6 w/ regulated screen grid. Probably sounds good. I don't think the screen needs that elaborate of regulation to sound good, but maybe there was a certain intent in this design.

It’s going to be a long show, we need pretzels or bar mix, they’ll last a bit longer before getting stale.

PM sent.

It is good to know you have not blocked me Jumbo. I actually had a question for you, but didn't think you'd play along.

In a previous life, I developed electronic products and worked around home amp and speakers guys too. I'm sure each competent speaker company has a certain way of developing speakers, but in general, I would lightly assume that the same scientific method is followed, for the most part, at each company. Usually, loud speakers (loud speaker meaning a complete system, not just a driver or speaker) are designed to measure flat, in an anechoic chamber. This design goal was established long ago and usually means that each frequency is being reproduced at an equal level so the loud speaker can accurately reproduce a sound or series of sounds. The speakers that were developed by these guys were not at the same level as Klipsch speakers, but what I would classify as mid-end to higher mid-end. When a loud speaker reached the crossover phase, a lot of time and effort went into "voicing" the speaker with various types of capacitors, chokes and resistors. The final design took quite awhile in most cases, then a BOM was made to document the crossover network. If any component was changed, it would probably change the frequency response, impedance or sound of the crossover. When the factory wanted to change a part, due to end of life (EOL) or some other supply chain issue, the speaker guys would request at least 20 or 30 samples of the part to do testing on. Once testing was done and they were satisifed with the new part, they would give it their blessing. Sometimes many different part types had to be gone through to find a suitable substitute. My point to all this is that I can see Klipsch's and Roy's point of view about changing parts. The loud speaker is designed as a system and any change could affect it in a negative manner. One center channel speaker long ago, I think it may have been an NHT, was designed to sit on top of a console TV before flat screens were so ubiqitous, anyway, it was found that a speaker sitting on the set-top needed to be equalized, so they built that EQ into the crossover so it would sound correct sitting on top of the TV. A huge part of the way speakers sound is also room interaction, but they are still designed to be flat in a chamber. If anybody wants to talk about caps or crossovers here, by my guest. Post away, but keep it civil.

Maynard, did you see the link I posted about the THD book?

In the old Mullard publication, Tubes Circuits for Audio Amplifiers, they briefly discuss shared cathode resistors... they claim at low power, it is OK, but at higher power levels, better performance is acheived by using separate resistors/caps for each channel. This was noted on a push-pull design, not single-ended.

In my EL34 amp that I modified, if you don't use at least a 100 Ohm resistor from screen to plate (triode mode), the EL34 will ring like a bell.

I concur. My 1999 C5 Corvette has mods and they are not factory approved, but it runs like a bat out of hell and is way more fun to drive than when I first bought it used. A lot of people like a "base product" but want to take it to the next level. In some cases, there is not another level.

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Ground Hog Day...

No doubt. Sugar or alcohol?. Red meat or chicken? Carbs or protein? All of the above!