Slight noise from lsi speakers

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  • @@@@@
    @@@@@ Posts: 115
    edited March 2010
    PSOVLSK wrote: »
    Those look like a good choice. I have some IC's from monoprice that I don't really like, but these look to be higher quality than the ones I own.

    You're absolutely right. They look great and inexpensive too. Right?
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  • tcrossma
    tcrossma Posts: 1,301
    edited March 2010
    @@@@@ wrote: »
    You may be right. However, the channel 1/5 of xpa 5 is producing noise 2 inches from the coil and channel 2/4 at least 1 nch away from the speakers. Than's my real problem. Do you think changing the interconnects will solve the issue?

    I have no idea, but if you are talking about hearing a slight hum or buzz 1-2" away from the speakers, I'd say we're operating within the normal parameters here. But hey, having a black background is something to shoot for, no doubt about it, so if swapping IC's makes it better, give it a whirl.
    Speakers: Polk LSi15
    Pre: Adcom GFP-750 with HT Bypass
    Amp: Pass Labs X-150
    CD/DVD Player: Classe CDP-10
    Interconnects: MIT Shortgun S3 Pro XLR
    Speaker cables: MIT MH-750 bi-wire
    TT:Micro Seiki DD-35
    Cartridge:Denon DL-160
    Phono Pre:PS Audio GCPH
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  • @@@@@
    @@@@@ Posts: 115
    edited March 2010
    Thanks! But what do you mean by saying a black background?
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  • tcrossma
    tcrossma Posts: 1,301
    edited March 2010
    @@@@@ wrote: »
    Thanks! But what do you mean by saying a black background?

    Meaning dead quiet. It's just not unusual to hear some hiss when you put your ear right up to a speaker.
    Speakers: Polk LSi15
    Pre: Adcom GFP-750 with HT Bypass
    Amp: Pass Labs X-150
    CD/DVD Player: Classe CDP-10
    Interconnects: MIT Shortgun S3 Pro XLR
    Speaker cables: MIT MH-750 bi-wire
    TT:Micro Seiki DD-35
    Cartridge:Denon DL-160
    Phono Pre:PS Audio GCPH
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  • @@@@@
    @@@@@ Posts: 115
    edited March 2010
    tcrossma wrote: »
    Meaning dead quiet. It's just not unusual to hear some hiss when you put your ear right up to a speaker.

    You're absolutely right.

    I think the best think to do right now is to change the interconnects to see if it will work then i'll let you know the result soon.
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  • Jetmaker737
    Jetmaker737 Posts: 1,054
    edited March 2010
    If the new IC's don't work you might want to try the Hum-X that was mentioned earlier. I have one that fixed the ground loop hum I had in my system.
    SystemLuxman L-590AXII Integrated Amplifier|KEF Reference 1 Loudspeakers|PS Audio Directream Jr|Sansui TU-9900 Tuner|TEAC A-6100 RtR|Nakamichi RX-202 Cassette
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  • @@@@@
    @@@@@ Posts: 115
    edited March 2010
    Jetmaker737 wrote: »
    If the new IC's don't work you might want to try the Hum-X that was mentioned earlier. I have one that fixed the ground loop hum I had in my system.

    Replacing the rca did not help remove the noise from the speakers. I bought audio quest ( sidewinder ) fron best buy today and feel disappointed. I'll try that one today.

    Thanks!!!
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  • PSOVLSK
    PSOVLSK Posts: 5,235
    edited March 2010
    tcrossma wrote: »
    I have no idea, but if you are talking about hearing a slight hum or buzz 1-2" away from the speakers, I'd say we're operating within the normal parameters here. But hey, having a black background is something to shoot for, no doubt about it, so if swapping IC's makes it better, give it a whirl.

    This is what I have come to realize in my system. Unfortunately, I don't think you're going to get total silence, but good luck in your efforts. If you do manage to get rid of the buzz that's bothering you, please let us know how you did it because I'll be trying the same thing.
    Things work out best for those who make the best of the way things work out.-John Wooden
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  • @@@@@
    @@@@@ Posts: 115
    edited March 2010
    I am thinking of buying Ebtech 8-Channel Hum Eliminator to see if it will work this time. If not, I'll buy Ebtech HUM X Hum Eliminator. And if the problem still persists, then it means that my mine is already damaged. BUZZZZZZZ!!!!!!!!!
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  • @@@@@
    @@@@@ Posts: 115
    edited March 2010
    Dear friends in this forum,

    I already bought hum x ( Ground loop Isolator ) from the guitar store close to my place, I plugged this in to the wall, and I plugged my amps ( XPA 5 ) into it. As the result, the hum from the speakers still exits. Also, I tried to put this in between my reciever and surge, the noise still exists. I tried multiple connections and the noise never disappears.

    I'll try other options tomorrow again and let you know the results soon. Or do you have any suggestion for me, please let me know?

    Thanks!!!
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  • @@@@@
    @@@@@ Posts: 115
    edited April 2010
    Do you have any other suggestions here that I can use to eliminate the hum/buzz on my speakers?
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  • polkatese
    polkatese Posts: 6,767
    edited April 2010
    My 0.02 cents:

    I used to have a Denon Receiver AVC-3030 several years ago, and it produces slight hiss in the LSi-15. Subsequently, I replaced the Denon with a Krell Integrated and it was dead quiet since then. One quick check that you can do: did you hear the hiss/hum after the relay clicking of the Denon (when you powered up) or it is there as soon as you power up?

    Based on your description of the problem and troubleshooting that you have already tried, my advice would be to try a different brand of Receiver.
    I am sorry, I have no opinion on the matter. I am sure you do. So, don't mind me, I just want to talk audio and pie.
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  • polkatese
    polkatese Posts: 6,767
    edited April 2010
    *double post*
    I am sorry, I have no opinion on the matter. I am sure you do. So, don't mind me, I just want to talk audio and pie.
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  • @@@@@
    @@@@@ Posts: 115
    edited April 2010
    polkatese wrote: »
    My 0.02 cents:

    I used to have a Denon Receiver AVC-3030 several years ago, and it produces slight hiss in the LSi-15. Subsequently, I replaced the Denon with a Krell Integrated and it was dead quiet since then. One quick check that you can do: did you hear the hiss/hum after the relay clicking of the Denon (when you powered up) or it is there as soon as you power up?

    Based on your description of the problem and troubleshooting that you have already tried, my advice would be to try a different brand of Receiver.

    That's what i am trying to consider now. I will probably buy pre-amp instead of reciever to avoid reoccorence of the problem.

    Thanks though!!!
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  • PSOVLSK
    PSOVLSK Posts: 5,235
    edited April 2010
    @@@@@ wrote: »
    That's what i am trying to consider now. I will probably buy pre-amp instead of reciever to avoid reoccorence of the problem.

    Thanks though!!!

    I have an Emo LMC-1 and still have the same issue. I'm pretty sure the problem is a high noise floor (the amp). Based on my experience with the same issue, your best and least expensive solution may be to keep your ear more than 2 inches from the speaker and don't worry about something you can't even hear. I'm not trying to be a smart a$$ because believe me, it drove me crazy for about a month or so before I finally came to the realization that it wasn't affecting my sound.

    Paul
    Things work out best for those who make the best of the way things work out.-John Wooden
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  • @@@@@
    @@@@@ Posts: 115
    edited April 2010
    PSOVLSK wrote: »
    I have an Emo LMC-1 and still have the same issue. I'm pretty sure the problem is a high noise floor (the amp). Based on my experience with the same issue, your best and least expensive solution may be to keep your ear more than 2 inches from the speaker and don't worry about something you can't even hear. I'm not trying to be a smart a$$ because believe me, it drove me crazy for about a month or so before I finally came to the realization that it wasn't affecting my sound.

    Paul

    Thank you for your information!
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