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    Ok, let's do the math: Assuming a fully charged...

    Ok, let's do the math: Assuming a fully charged AA or AAA cell, you apply a power of 1.5[V]²/8[Ω] = 0.28 watts. That really won't hurt, even after a longer period. But, as I've never done it before...
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    Does charge coupling really work?

    Yeah, the title says it all. I do respect JBL as a serious, reputable speaker manufacturing company, but biasing non-polarized foil capacitors by applying some DC voltage strictly resembles marketing...
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    Yes, but it'll work the other way round (0 ohms...

    Yes, but it'll work the other way round (0 ohms when fully CCW, 40 ohms or even off when fully CW).

    In this thread I've shown how to modify a L-pad to work properly as a rheostat.

    Best regards!
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    I'm still wondering what might have provoked JBL...

    I'm still wondering what might have provoked JBL to polarize their speakers the other way round :blink:. For comptibility reasons I changed polarity in my 2225H subwoofers by reversing the internal...
  5. Thread: Rip-off

    by Kay Pirinha
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    Compare John Camp's bass line in Can You...

    Compare John Camp's bass line in Can You Understand from the 1973 Renaissance Album Ashes Are Burning with John Lodge's in Legend of a Mind from The Moody Blues' 1968 album In Search of the Lost...
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    Of course it does, Steve ;)! Then the wrong...

    Of course it does, Steve ;)!

    Then the wrong holes (by atisley) might be interpreted as too large in diameter or in the wrong places, I assume?

    Best regards!
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    How did JBL fasten these tweeters in the 4345's?...

    How did JBL fasten these tweeters in the 4345's? Did they drill blind holes into the baffle's back and use propel nuts?

    Btw, splendid craftmanship, to both :applaud:!

    Best regards!
  8. I don't think you've made a mistake. I also would...

    I don't think you've made a mistake. I also would have done it your way. The reason is that the resin you've used, being it epoxy or styrene, uses some very small amount of dibenzoylperoxide...
  9. We've yet had some discussion about that video...

    We've yet had some discussion about that video some weeks ago and agreed upon that opening the magnetic circuit of an AlNiCo magnet isn't much of a good idea ;).

    Best regards!
  10. Nice to see that you, and others, have stories to...

    Nice to see that you, and others, have stories to tell to these pics. I must admit that they simply don't tell me anything, I only enjoy the funny situations they were shot in and the comments ;).
    ...
  11. Thank you. I didn't know or recognize the...

    Thank you. I didn't know or recognize the acronym.

    Best regards!
  12. Major star? Who is he? Best regards!

    Major star? Who is he?

    Best regards!
  13. Awesome photos of people listening to music

    https://splinternews.com/23-awesome-vintage-photos-of-people-listening-to-music-1793851723

    I don't know if there's JBL gear involved, though :hmm:...

    Best regards!
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    Beardfish

    https://www.youtube.com/watch?v=AOd_AW2t0OI

    https://www.youtube.com/watch?v=jg__qW4oLjs

    Sadly, this very talented band from Sweden folded in July 2016 :crying:...

    Best regards!
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    Here's an example for what you call 'propel nuts'...

    Here's an example for what you call 'propel nuts' with ISO M6 thread:

    84678

    I never use a hammer to drive a T-nut into a wooden board. Instead I use a screw, a washer and a cordless screwdriver...
  16. The Dual 1019 record changer is well sought-after...

    The Dual 1019 record changer is well sought-after here in Germany, even if it needs some TLC! S/H and customs fees from overseas are prohibitively, though :o:.

    Best regards!
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    One should consider that the MA-15 clamps don't...

    One should consider that the MA-15 clamps don't suit for all transducers. Especially not for the K-145 and others with higher rims.

    @Richard: I do understand your reasoning against T-nuts very...
  18. Hi MoD, I'm very impressed, too, especially on...

    Hi MoD,

    I'm very impressed, too, especially on your fibreglass/resin outcome. Your first mold might have been sticking due to it's surface which possibly might not have been smooth enough. But...
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    It was at the dawn of my career as a school boy...

    It was at the dawn of my career as a school boy in 1978 when I decided to build a silverface (CBS) Fender Dual Showman Reverb head clone, using EL34's instead of 6L6GC's, 'cause I didn't source a...
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    Hi, the main advantages are that autoformers...

    Hi,

    the main advantages are that autoformers per se don't dissipate heat and that output impedance, as seen by the driver, won't increase when turning ccw. In contary it will decrease then. But...
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    We also observe and listen to greenfinches and...

    We also observe and listen to greenfinches and goldfinches sitting on the big birch and walnut trees in our garden.

    Best regards!
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    Can we identify that »Ha Ha Ha Ha Ha« close to...

    Can we identify that »Ha Ha Ha Ha Ha« close to the end of Gallows Pole (Led Zeppelin III, B1) as laughter as well?

    Best regards!
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    Same with Mountain's Nantucket Sleighride on the...

    Same with Mountain's Nantucket Sleighride on the Twin Peaks double album, or with Yes' Ritual on Yesshows :(.

    Best regards!
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    Hi Ian, in short words I swapped both resistor...

    Hi Ian,

    in short words I swapped both resistor tracks to get the desired action (higher level when turned cw) for the 42 ohms (per my measurements) one. JBL's 30 ohms statement for the rheo that...
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    Amazing work, WKOTTD :applaud:! BUT: With due...

    Amazing work, WKOTTD :applaud:!

    BUT: With due respect, I'm in severe doubt that »charge coupling« plastic foil capacitors will improve anything at all. At least one has to be pleased if there's no...
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