Lowering noise floor, what has worked for you?

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Comments

  • leftwinger57leftwinger57 Posts: 2,918
    Hey Ken if your still around, I got what your saying w/ the jumpers but what about just female port covers. Do they do anything besides I guess preventing tarnish on the sleeves? I have an Onkyo P-3150v and taken up so far are the phono in,CD, tuner in and the outputs to my Adcom 555. All video ports and whatever is left is open and exposed......Lew
    Oh, the only hum, hiss I ever had was from the rca cable run from computer to AVR picking up I-Net radio into tuner in. That was resolved w/ a ground hum isolator through Amazon for $15 or so.
    2chl- Adcom GFA- 555-Onkyo P-3150v pre/amp- JVC-QL-A200 tt- Denon 1940 ci cdp- Adcom GFS-6 -Modded '87 SDA 2Bs - Dynamat Ext.- BH-5- X-Overs VR-3, RDO-194 tweeters, Larry's Rings, Speakon/Neutrik I/C- Cherry stain tops Advent Maestros,Ohm model E

    H/T- Toshiba au40" flat- Yamaha RX- V665 avr- YSD-11 Dock- I-Pod- Klipsch #400HD Speaker set-

    Bdrm- Nikko 6065 receiver- JBL -G-200s--Pioneer 305 headphones--Sony CE375-5 disc
  • KennethSwaugerKennethSwauger Moderator Posts: 6,773
    I've seen those covers and I guess they can keep dust out of the inside of the RCA sockets, but they probably won't help with noise very much. There are selector switches that short any input not selected, so if I'm listening to phono every other input is connected to ground. But, in days of yore when people did a lot of tape recording you could record off of the radio and still listen to a record none of the inputs were shorted.
    "And the house you live in will never fall down
    If you pity the stranger who stands at your gate" G.Lightfoot
  • tonybtonyb Posts: 30,391
    Oh, the only hum, hiss I ever had was from the rca cable run from computer to AVR picking up I-Net radio into tuner in. That was resolved w/ a ground hum isolator through Amazon for $15 or so.

    LEW, your describing obvious audio noise. What we are talking about is the noise that isn't obvious, least not until it's gone.
    HT SYSTEM-2 channel
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  • afterburntafterburnt Posts: 4,729
    edited May 2018
    Ken made some really nice grounding plugs for me. It seems that they boosted the gain but my mind may be playing tricks on me as it so often does. I will be conducting thorough testing after work today and will report my findings. That is if I survive the testing. I suffer from claustrophobia and every time that I climb behind my rack I just about suffer a coronary.
    Parlor: ifi iDSD Micro*Yamaha RX-A2030*Parasound Halo P5*Parasound Halo A-31*Parasound 2250v2*Emotiva XPA-200 Gen1*LSiM707 Fronts*LSiM706c Center*LSiM702f/x Surrounds*Monitor70 Series II Rears*Monitor40 Series II Presence*SVS PB2000 Sub X2*OPPO BDP-103D*Sony PS3*Samsung-55" LED 1080p Smart 3D HDTV UN55H7150AFXZA*TEAC TN-300*Wireworld Solstice cables* Wireworld Stratus power cables*Blue Jeans Cable LC-1's IC's*BJC Silver-Plated IC's* Bens Silver IC's

    Dungeon: Dancer Mini-Two Diamond*Auralic Aries Mini*Dayens Ampino Preamp*Dayens Ampino Monoblocks*North Star Intenso DAC*Wireworld Oasis cables*Wireworld Oasis IC's*Wireworld Aurora power cables*IFI nano IDSD bl*Pangea Silver USB*Cambridge CXU*

    Panamax MR5100*Panamax M8-AV-PRO*Furman PST-2+6

    Headgear: Sennheiser HD 558*Audio-Technica ATH-M40x*Sennheiser HD 598 Cs*Audio-Technica ATH-MSR7*Philips SHP9500S* Sennheiser 6xx

    Hello Kitty boombox

    Spare sortta: Usher N-6361* ifi iDsd nano*Marantz 1504* RX-A1040*Emotiva XPA-1L Gen2 X2*Emotiva XPA-3 Gen2*CSiA6 Center*Monitor40 Series II*SVS PB1000 Sub*Sony BDPS6500 Blu-ray player*POS 37" LCD*Douglas Connection Furez 12 AWG 2 Conductor*Blue Jeans Cable LC-1's IC's*Samsung BD-H5900 3D Blu-Ray*Usher N-6361


    Self Control is over rated.
    Mr. Sharpe wrote: »
    Meh these were extra $70 as an open box item so it didn’t much to me either way:)

    Modern physics would have us believe that the universe is made up of quarks, gluons, photons -- and morons

    Jesus H. C H R I S T - Afterburner - can you ever be courteous and stay on topic. If you want to blather on about "Family Affair" start your own dam thread! I get tired of your inane comments. You're not clever and you're not funny and most time you're posts are completely irrelevant to the topic.
  • rpf65rpf65 Posts: 1,898
    If your mind keeps playing tricks on you; how do you expect to pass a test?
  • afterburntafterburnt Posts: 4,729
    I don't know about the other guys but I use doe urine.
    Parlor: ifi iDSD Micro*Yamaha RX-A2030*Parasound Halo P5*Parasound Halo A-31*Parasound 2250v2*Emotiva XPA-200 Gen1*LSiM707 Fronts*LSiM706c Center*LSiM702f/x Surrounds*Monitor70 Series II Rears*Monitor40 Series II Presence*SVS PB2000 Sub X2*OPPO BDP-103D*Sony PS3*Samsung-55" LED 1080p Smart 3D HDTV UN55H7150AFXZA*TEAC TN-300*Wireworld Solstice cables* Wireworld Stratus power cables*Blue Jeans Cable LC-1's IC's*BJC Silver-Plated IC's* Bens Silver IC's

    Dungeon: Dancer Mini-Two Diamond*Auralic Aries Mini*Dayens Ampino Preamp*Dayens Ampino Monoblocks*North Star Intenso DAC*Wireworld Oasis cables*Wireworld Oasis IC's*Wireworld Aurora power cables*IFI nano IDSD bl*Pangea Silver USB*Cambridge CXU*

    Panamax MR5100*Panamax M8-AV-PRO*Furman PST-2+6

    Headgear: Sennheiser HD 558*Audio-Technica ATH-M40x*Sennheiser HD 598 Cs*Audio-Technica ATH-MSR7*Philips SHP9500S* Sennheiser 6xx

    Hello Kitty boombox

    Spare sortta: Usher N-6361* ifi iDsd nano*Marantz 1504* RX-A1040*Emotiva XPA-1L Gen2 X2*Emotiva XPA-3 Gen2*CSiA6 Center*Monitor40 Series II*SVS PB1000 Sub*Sony BDPS6500 Blu-ray player*POS 37" LCD*Douglas Connection Furez 12 AWG 2 Conductor*Blue Jeans Cable LC-1's IC's*Samsung BD-H5900 3D Blu-Ray*Usher N-6361


    Self Control is over rated.
    Mr. Sharpe wrote: »
    Meh these were extra $70 as an open box item so it didn’t much to me either way:)

    Modern physics would have us believe that the universe is made up of quarks, gluons, photons -- and morons

    Jesus H. C H R I S T - Afterburner - can you ever be courteous and stay on topic. If you want to blather on about "Family Affair" start your own dam thread! I get tired of your inane comments. You're not clever and you're not funny and most time you're posts are completely irrelevant to the topic.
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