Hiss / hum after adding new receiver. Help?

asearls
asearls Posts: 18
edited February 2005 in Basic Hookup/Wiring Questions
First let me thank everyone for their input on this board. I appreciate the info that is shared on this forum. Now for my dilemma. Last night i hooked up a factory refurbished Harmon avr 525 that i had won on ebay. Unfortunately I immediately heard a hiss/ hum coming from all speakers. I never had this problem with my Onkyo 502. To make sure i wasn't crazy, i reconnected the onkyo and the noise was gone. Do you guys think that this is a defect in the harmon receiver or do you think this could be caused by poor speaker wire, ground loop, or something else. Any ideas would be appreciated. I tried to contact harmon, but they are out on the weekend. Thanks in advance for your responses.;)
I LOVE MY WIFE!!!
Mitsubishi 65413
samsung hd931
pioneer vsx1014
Rti8's
csi5 center
kenwood sub
rti6 rears
Post edited by asearls on
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Comments

  • bikezappa
    bikezappa Posts: 2,463
    edited January 2005
    Try switching the 120 volt plug position in you reciever.
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  • unc2701
    unc2701 Posts: 3,587
    edited February 2005
    if it's at about 60htz and doesn't get louder when you turn up the volume, it's ground loop. Otherwise, dump it. I've heard a lot of stories about HK sucking, catching fire & other QC issues. Return it while you can,
    Gallo Ref 3.1 : Bryston 4b SST : Musical fidelity CD Pre : VPI HW-19
    Gallo Ref AV, Frankengallo Ref 3, LC60i : Bryston 9b SST : Meridian 565
    Jordan JX92s : MF X-T100 : Xray v8
    Backburner:Krell KAV-300i
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  • asearls
    asearls Posts: 18
    edited February 2005
    I tried everything i could think of to fix this horrid sound. Finally i gave up and sent the unit back to harman audio. They were really good aboout accepting the return and didn't give me any bs. Guess I should wait til my credit card has been credited before i give them too much credit. I'm really disappointed as many of the guys on this forum enjoy their hk products. I hooked my onkyo back up and it still sounds great. Sometimes it feels like we are looking for the HOLY GRAIL of audio. We just can't be happy with what we have. Thanks for all of the posts.
    I LOVE MY WIFE!!!
    Mitsubishi 65413
    samsung hd931
    pioneer vsx1014
    Rti8's
    csi5 center
    kenwood sub
    rti6 rears
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  • Pinktulip7
    Pinktulip7 Posts: 249
    edited February 2005
    Listen dude Harman Kardon make the best receiver!!sound like that receiver has technical issue,get a brand new one...
    TV :>Panasonic TC-P55VT50
    RECEIVER :> HARMAN KARDON AVR 7300
    FRONT :> L & R :> POLK RTI A9 500 W
    AMP :1> PARASOUND HALO A21 250 W
    AMP :2> EMOTIVA UPA-1 200 W
    CENTER :> POLK LSiM 706c 250 W
    SURROUND SIDE :> POLK RTi A3 150 W
    SURROUND REAR :>POLK FXI A6 150 W
    DVD PLAYER(HD) :>TOSHIBA HD X-A2
    DVD PLAYER(BLU-RAY) :>Panasonic DMP-UB900
    POWER CONDITIONER :> PANAMAX M5400-EX
    SUBWOOFER :A> SVS SB16-Ultra 1500 W Front
    SUBWOOFER :B> SVS SB16-Ultra 1500 W Rear
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  • AsSiMiLaTeD
    AsSiMiLaTeD Posts: 11,728
    edited February 2005
    Originally posted by Pinktulip7
    Listen dude Harman Kardon make the best receiver!!sound like that receiver has technical issue,get a brand new one...
    H/K makes good stuff no doubt, but it's not the 'best' you can get.

    'Best' is defined by a great number of variables, many of which are subjective to who is listening.

    I like H/K and own their stuff, but I will say this. H/K has had more QC issues recently than any other manufacturer in that market that I am aware of.

    H/K is great stuff, you just gotta find one that works...
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