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    Gaskets reusable?

    Is the gasket still usable after a woofer has been detached from cabinet?
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    It arrived

    The replacement driver finally arrived in the mail. Got to install it on the weekend.
    ...
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    Another question...

    I noticed that PT800 has "904ti" as its midrange, which seems look the same as 804ti and according to specs the DC resistance is exactly the same. But how about sensitivity and frequency curve? Would...
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    Thanks for your responses. The 804ti is the...

    Thanks for your responses.

    The 804ti is the faulty driver because I connected it directly to the amplifier with the same result. However, I ordered a new driver from the service (expensive!),...
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    Midrange driver distortion

    Good summer to everyone!

    I was listening to Vijay Iyer's excellent CD "Historicity" and observed that piano was sounding somewhat "hard" and straining to the ear. First I though it was because of...
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    Ti10k active stereo bass / XO mod

    Having far too little free time in my life, I decided to dedicate what's left of it to revamping my good old JBL Ti10k loudspeakers. Some of you might think this is pointless, as these speakers are...
  7. Parts received :)

    Got all the replacement capacitors today. I went to measure them, and all the polyester MKT's were within 1.5% tolerance. Pretty good, even though they have +-5% marking on them.

    The electrolytes,...
  8. OK, here's what I have decided to do. First, I...

    OK, here's what I have decided to do. First, I will keep the original values for capacitors. I trust the engineers at JBL are better than I at crossover design
    (network schematics again:...
  9. Thank you for your responses. What wonders me...

    Thank you for your responses.

    What wonders me is that all the electrolytic capacitors are rated as high as 400V! Do they really have to be that high? Doesn't 100VDC suffice? (pretty much all...
  10. Is there any benefit in replacing electrolytic capacitors with PP?

    My speakers are about 10 years old. Here's the crossover network http://manuals.harman.com/JBL/HOM/Technical%20Sheet/Ti10k%20ts.pdf and let's assume the following capacitors 33uF, 39uF, 120uF, 47uF,...
  11. Thread: Parasound A21

    by lofi-ear
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    Parasound A21

    Good summer to all :)

    I'm thinking about buying a second hand parasound a21 power amp to feed my JBL loudspeakers that crave power (as I've read from people in this forum). So as usual, I'd love...
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    Problem fixed!

    I disassembled the tweeter and cleaned every part with alcohol and the distortion disappeared. :) I will however order the extra diaphragms just in case the trebles decide to blow in the future.
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    Very kind of you :) But I think I can get the...

    Very kind of you :) But I think I can get the diaphgram/voice coil replaced at the local harman service. If not...

    What modifications should I make to the crossover network to attenuate tweeter...
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    Done that, it's the tweeter

    Done that, it's the tweeter
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    Thanks for your reply :) I saw that thread a few...

    Thanks for your reply :) I saw that thread a few hours ago after posting my initial question and it did turn out to be very helpful. I'm glad there's still repair kits available, I can only hope they...
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    Tweeter damaged (TW025 replacement)

    As much as I feared it, It happened :(

    I have absolutely no idea when, but one of the TW025 tweeters of my tik10's seems to have taken damage, luckily the other tweeter is ok.

    As I play a sine...
  17. How good are the 808J drivers for subwoofer use?

    Good day to all,

    My speaker (ti10k) has two 808J drivers in a 40L (or something) ported enclosure that take care of bass response. While they go deep, they could produce a bit more SPL, especially...
  18. Mark Levinson 23.5, will it drive any JBL with ease?

    The title says it all.

    I could get a used one for a very nice price tag. It's from early 90's. How would it compare to today's high-end amps from the same company or others (Krell/McIntosh etc)?
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    This thread seems to have deviated from my...

    This thread seems to have deviated from my original question to a discussion about digital data reliability, so here's my take on it. No offense to anyone :)

    A well-preserved CD, when played with...
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    The more experimental side of electronic music is...

    The more experimental side of electronic music is generally very low-bass heavy.

    Many ambient CD's contain frequencies below 20Hz (such as Lustmord's classic "Heresy"); then there's drum'n'bass...
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    But as long as the signal is digital what...

    But as long as the signal is digital what difference does it make? I think computer is the best digital audio source, since reading bits from a spinning disc could be a precarious process..

    It...
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    Thanks for all the input :) I ended up with a MF...

    Thanks for all the input :) I ended up with a MF 3.24 dac. It's a very robust piece of equipment and sounds very good, it's all that counts. :)
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    Digital equalization/audio degradation

    Hello,
    I'm playing FLAC-encoded music through a laptop, using its optical output connected to a DAC. I use Winamp and Shibatch Super Equalizer (incorporates 16383th order FIR filter) to correct...
  24. Nah, bummer... I'm pretty out of money. is there...

    Nah, bummer... I'm pretty out of money. is there a DIY solution? :o:
  25. Quick replies, as always. Thanks. :) The...

    Quick replies, as always. Thanks. :)

    The woofers are getting signal, but the bass is very weak for some reason. I will clean the terminal plates and try it again as soon as possible. Hopefully...
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