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Lawrence_Chiu

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Posts posted by Lawrence_Chiu

  1. The THX Ultra2 subwoofer (KW-120-THX) and amplifier (KA-1000-THX) come with a weird connector called Neutrik Speakon NL2. This connects the subwoofer to the amplifier.

    The problem is that the supplied cable is only 20 feet. My equipment is in a rack in an adjacent room. The distance exceeds the length of the cable.

    Is there a place where I can buy this cable in longer lengths?

    Please let me know.

    Regards,

    Lawrence

  2. Hey all, thanks for all the advice. I found an interview with John Dahl from

    THX that says:

    "How one places the speakers depends on a couple of

    things. Our prime recommendation for consumers using

    components with THX Ultra2 Certification and looking

    for a single speaker arrangement for cinema and music

    is the following: two dipole speakers to the side and

    two direct radiators in the back touching side by side

    with the ASA circuit engaged at a distance less than

    one foot. (Figure 2). The ASA circuit takes the single

    back channel signal and using the two speakers makes

    it sound like one timbrally correct wall-to-wall

    sound. In THX cinema mode, the balance is as recorded.

    In THX Music mode, the sound is biased toward the back

    to mimic the ITU recommendations for 5.1 speaker

    placement in music recording situations."

    ...

    "With any of these systems, be careful that no one is

    sitting directly on axis and close to any of the

    speaker faces. Loud on-axis sound above 500Hz is very

    tiring to listen to when it's constant and outside of

    the field of vision."

    http://www.audioholics.com/FAQs/THXp2.html

    What I am thinking of doing, is going with the

    monopole rears, but putting them on a "turntable".

    Then, they can either face forward (direct radiating),

    or I can spin them 90 degrees (back-to-back) to face

    their respective wall (dipole operation). Do you

    think this idea will work?

  3. I am considering the Klipsch THX Ultra2 speakers for my home theater. This is a 7.1 setup.

    I wanted to use the KL-650-THX for Left/Center/Right. This is a monopole speaker.

    Also KL-650-THX for Left-rear/Right-rear. Same as above.

    And KS-525-THX for Left-side/Right-side. This is a dipole speaker.

    But my home theater designer hates the monopoles for the rear. He says I should go with more dipoles instead.

    The designer says that using monopoles in the rear would cause listener fatigue, since the 2nd row is only 3 feet away. As a result, he says that no one would want to sit in the 2nd row. I asked him if I could mount the rear speakers higher, so they won't be pointing directly at the viewers, and he says that is not good either because monopole speakers does not have good off-axis response. He says I should go with dipoles in the rear too. He says monopoles are useless in the back because no one mixes directional sound for the rear channels for either movies or music.

    I was wondering if there are any opinions about which is right. On the one hand, you have THX saying one thing (which is rear monopoles side by side), and on the other, a professional designer saying the opposite.

    I'm so confused.

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