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Happy Hopping

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Posts posted by Happy Hopping

  1. Okay, I have tried out the above, put the ferrite choke on either end of the input to the per-amp. It does reduce a bit of those noise, but the noise is still there. i.e, RFI still exists to the pt. that it is still annoying.

    Any one else has some other ideas to add to the above? Something else better than ferrite choke?

  2. Infrared wireless doesn't work through walls.

    Infrared works the same as a TV remote, and won't work unless you point the headphones at the transmitter.

    Okay, I re-read my mesg., it wasn't very clear. When both tests were conducted, on ea. test, the base unit and the headphone are in the same room, and in the direct line of sight from the headphone to the main unit.

    What I was trying to say is, I was trying to eliminate the possibilities that the headphone is defective. So basicially:

    Test 1) Base unit and headphone upstairs--doesn't work, receiving radio signal interference

    Test 2) Base unit and headphone downstairs--works very nicely, absolutely no radio signal interference

    ===============

    Jadeclaw:

    I can try that radio shack trick, and see what happens, the original boss unit kit doesn't c/w those filter, I can put one on to the main unit and go from there. Thanks for the tip.

  3. I gave my Cordless infrared red headphone to my dad. His house is near a radio station who boardcast radio signals.

    Playing this unit on the main floor works fine. But playing this unit in his bedroom upstairs doesn't work.

    It receives a lot of interference, at least 3 different radio station signals are jamming into the head set. But the "supposed" output from the CD player is not coming out at all due to those radio freq. interference.

    We even try to use Insulation R10 (pink wall) to block some parts of the windows.

    Any suggestion to fix this?

  4. On a lighter note: This is on Playboy Magazine this month under the Party Joke section:

    The US Postal Service issued a George W. Bush stamp. It soon discovered that the stamps were not sticking to the envelopes, so it established a commission to investigate the matter. The commission reported the following findings:

    1. The stamps met all regulations

    2. Nothing was wrong with the adhesive.

    3. People were just spitting on the wrong side.

  5. OMG, don't you find that the sound from the D-777 kills the EJ2k? :wink:

    Same with mine though, my D-777 doesn't play scratched CDs or CD-Rs well at all. :sad:

    I thought the new one EJ2000 is better, but that's w/ the new V900 headphone. I have to sit down and compare the 2 CD player side by side.

    If the D777 is that good, I should sell it.

  6. Throwing out the tantalums was a good idea.

    Tantalum capacitors have some physical properties, which can result in audible distortions.

    Standard aluminum caps have a much better linearity.

    Tantalum caps should only be used, where space is at an absolute premium (hearing aids / bugs)

    How do you remove the tantalum caps and replace it with whatever?

    As I ended up buying the D-EJ2000 brand new for under $79. They allowed me to trade in a MDR-V600, they trade list price of V600 as credit, and sell me the DEJ2000 for their list price.

    But the thing is, I got the V600 as a boxing day special for only $40. So I actually made money on this.

    I'm very happy w/ the DEJ2000, due to the back light, the ultra thin and light wt. of the unit and the sound is quite good, but I'm using the MDR-V900 as head set so it's hard to tell if the performance is due to the headphone or the discman.

    They did cut corner on the unit vs. D777. The D777 is soft leather, high grain bag. The DEJ2000 is a cheap nylon bag. They also kill the external RCA audio cable, but then I don't need it. The unit is made in malaysia instead of Japan.

  7. Newer is not always better...

    Sony's old-school PCDPs blow both these away in terms of sound quality. Enter Sony D-311 or Sony D-555. Both are exceptional units.

    I'm trying to find a 311 myself...

    :grin:

    You lost me. What is PCDP? As I owned D303 and D777.

    D777 was the very first Discman w/ ESP 10 sec. protection. I always believe there is a design flaw, as if the CD is too badly scratched, the ESP won't work and my CD playing will just pause.

    If the CD is brand new or not much scratch, it won't pause and is okay. And that's the way it was back since day 1 I bought the unit. I took it in for repair and they explain that is just the way the D777 is. The unit is made in Japan, and I am quite happy with that.

    My D303 is quite good, all heavy type metal, made in Japan, but it is heavy. And I can only play the CD in a slightly vertical position or else the CD will skip due to the lack of ESP Protection. But playing it as a desktop is quite good as it has optical out.

  8. The thing I hated most about the current president, is that he uses the emotion of American after Sept 11, 2001, and drive us towards the Iraq war.

    He takes advantage of the soldiers and convinced them that Iraq is behind or related to the Sept 11, 2001 attack.

    I mean, even back in the late 90's, after the first Gulf War, there is no mentioning of bin laden and Saddam kiss ass ever.

    At the time, we want to get even, so if he said aliens from Mars are responsible for Sept 11, we'll go for it. As emotion are very high.

    Taking advantage of American and our troops during our high emotion state after Sept 11 to drill for oil, extending that ??? pipeline thru Iraq is sickening.

    What I really want to know is the stock option pay out that the current president and VP gets for the OIL (Operation Iraqi Liberation)

  9. I'm aware of that. But when they said 5mW, does it mean:

    1) That's the rated power of the ENCLOSED headphone set?

    Or

    2) That's the max. output power of the main NH1 unit to ANY headphone?

    Because if you read the next page of the manual, it says Option: MDR series headphone. Surely Sony knows the difference on the demand of power between the cheap one that comes with the unit vs. the MDR series.

  10. Reading the NH1 manual, it says Headphone: 5mW+5mW (16 ohm)

    obviously, they are taking about the ones that comes with the unit.

    Now, if I hook up the NH1 with the MDR-V600, and its spec is:

    # Frequency Response: 5Hz - 30kHz Rated Power: 500mW

    # Maximum Power Handling Capacity: 1,000mW

    ============

    What would be the output Power from the NH1 to the V600? Would it be 500mW?

    As well, what would be the Power max. out? Would it be 1000 mW?

    In other words, there ought to be a max. output power from the NH1 to any headphone, what is that output power?

  11. Yeah, but what about all these headache? I like the convenience of download one big zip file and uncompressed it.

    However, I supposed if someone has gone thru these tedious steps and made it to work, it would be nice if someone can tabulate that step by step so it is easier for amateur like myself to follow.

    Thanks for that guys. I transfered all files from Temp dir onto my laptop,and did manual installation of each component. 

    Works Great.

    Cheers

    PS One question! What is the difference between SS2.0 and 2.1??

  12. but lectures are usually speech only and Hi-LP can do that very well.

    On top of that, you get Linear-PCM, providing full CD-Quality

    But why would he need something of such high quality? Lectures are mono, it's one man talking, anything half decent mono recording mode to save disk space, and thus, the convenience of switching to different disc is a bonus.

    There is no reason to record high quality if he can put all lectures, and for a full time university student, it is usually 4 - 5 lectures per semester, in one disc per day.

    When I attended university, even w/ 6 classes per semester, 2 out of the 6 is on Tues/Thurs, whereas the other 4 is on M, W, F. So really it is only 4 hr. of recording per day.

    With the storage spc. of the new Hi-MD, based on 3 hr. of lecture per classes, x 5 classes per semester, is only 15 hr. of lecture per week.

    At ATRAC3plus/64kbps mode, he can easily do 34 hr.

    ===============

    SoftMusic, on a minor note, when I attend intro on psych. as an option, the prof. stated at the beginning of the semester that no recording is attended. But he is the only one I met who even brought out the subject.

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