is hum exceptable at all

leftwinger57
leftwinger57 Posts: 2,917
edited October 2011 in Electronics
After getting my new ICs I instantly noticed that A humm I used to have w/ inferior cables was totaly gone. Now w/ ss systems I would think the there should be no hum low level or otherwise. In the case of tubes is ther hum as tubes heat up or no such sound should happen unless you have inferior ICS and and mabe an errant stable. I do not use stples just ty-raps to secure the wires then staple the raps and not touch the cables at all.
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
Post edited by leftwinger57 on
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Comments

  • george daniel
    george daniel Posts: 12,096
    edited October 2011
    ground loop? do you have catv connected to your pre/receiver?
    JC approves....he told me so. (F-1 nut)
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  • Joe08867
    Joe08867 Posts: 3,919
    edited October 2011
    Like George said. Ground Loop,

    It's probably your cable/satellite box.
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  • BlueFox
    BlueFox Posts: 15,251
    edited October 2011
    Old cables had a hum. New cables do not have a hum. Sounds like a cable problem. Glad its fixed. Keep those cable connections clean and tight. And hum is never acceptable.
    Lumin X1 file player, Westminster Labs interconnect cable
    Sony XA-5400ES SACD; Pass XP-22 pre; X600.5 amps
    Magico S5 MKII Mcast Rose speakers; SPOD spikes

    Shunyata Triton v3/Typhon QR on source, Denali 2000 (2) on amps
    Shunyata Sigma XLR analog ICs, Sigma speaker cables
    Shunyata Sigma HC (2), Sigma Analog, Sigma Digital, Z Anaconda (3) power cables

    Mapleshade Samson V.3 four shelf solid maple rack, Micropoint brass footers
    Three 20 amp circuits.
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  • zingo
    zingo Posts: 11,258
    edited October 2011
    BlueFox wrote: »
    And hum is never acceptable.

    Agreed
    Jake
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  • mhardy6647
    mhardy6647 Posts: 34,913
    edited October 2011
    One is a bit more philosophical about a little residual hum when one's amplifiers use directly (AC) heated triodes for AF output and one's loudspeakers manifest triple-digit sensitivity (i.e., 100+ dB @ 1 meter for 1 watt in). Just sayin'.
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  • punk-roc
    punk-roc Posts: 1,150
    edited October 2011
    I also got some hum in my system from lower-end tubed preamp.. removal of the offending equipment immediately resolved my hum. More acceptable tube equipment did not produce the same hum.

    Jason
    2-Channel - So far...
    Pre: Dodd ELP
    DAC: W4S-Dac2
    Source(s): Computer and Denon 2910
    Amp: Parasound HCA-1200II
    Speakers: LSi9s - Vr3 Fortress Mod
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  • leftwinger57
    leftwinger57 Posts: 2,917
    edited October 2011
    the way I h/u my tv is Hdmi from tv to cable box and then a Hdmi cable out from the yamaha back to tv to pick up the on screen
    YPAO.To p/u audio because I like watching silent tv and having tunes at the same time so I have an optical cable out of cable box into av1 optical port on the Yamaha.Now to be totallytransparent I do share some devices like the yds-dock /i-pod and my Denon cdp between both systems .For the h/t into the cdp I have a HDMI cable and the dock has a propriatary cord. To p/u these units for 2-chl I use analog cables into the cd input and tuner input respectively into my Onkyop-301 pre .Also I'm getting i-net streaming radio the same way.
    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
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  • bklynNupe
    bklynNupe Posts: 728
    edited October 2011
    I had a ground loop in my 2-channel rig that was caused by Cablevision although my HT is totally separate.

    I purchased a ground loop isolator and had great results, the ground loop is now completely gone. Their technicians claimed the system was properly grounded. In fact, the cable caused the loop. The best part is that I got the cable company to issue me a credit equal to the cost of the device. The last cable guy that came by to check out a separate issue with my internet speed examined device but couldn't believe the isolator was resolving my loop issue. He tested it out by removing it from my system and checking for other possible causes. He finally realized the issue was a loop caused by the cable. Afterwards he jotted down the make and model number.
    http://www.amazon.com/VSIS-EU-Cable-Ground-Loop-Isolator/dp/B0017I3K9M/ref=sr_1_4?s=electronics&ie=UTF8&qid=1318274239&sr=1-4

    emotiva xpa-2
    emotiva xpa-3
    Denon 3312ci
    Rtia9 /csia6 / FXi A6
    Samsung LN46A650
    SVS PB-12-NSD sub

    Audio Research SP-9 MKIII (GNSC mods)
    W4S ST250
    Lsi 9 (mods)
    W4S DAC-2
    Mac Mini
    Audio Aero Prima CD player
    Pro-Ject debut
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  • mdaudioguy
    mdaudioguy Posts: 5,165
    edited October 2011
    leftwinger57 wrote: »
    is hum exceptable at all
    Sure, if you don't know the words.
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  • F1nut
    F1nut Posts: 51,672
    edited October 2011
    mdaudioguy wrote: »
    Sure, if you don't know the words.

    That's worth a :lol:
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

    President of Club Polk

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  • mhardy6647
    mhardy6647 Posts: 34,913
    edited October 2011
    I am still trying to grok exceptable...
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  • tonyb
    tonyb Posts: 33,065
    edited October 2011
    Never acceptable in my home anyway. I'll hunt that sucker down or it will bug me to no end.
    HT SYSTEM-
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    SVS SB-2000
    Polk Sig. 20's
    Polk FX500 surrounds

    Cables-
    Acoustic zen Satori speaker cables
    Acoustic zen Matrix 2 IC's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable

    Kitchen

    Sonos zp90
    Grant Fidelity tube dac
    B&k 1420
    lsi 9's
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  • TECHNOKID
    TECHNOKID Posts: 4,298
    edited October 2011
    BlueFox wrote: »
    Old cables had a hum. New cables do not have a hum. Sounds like a cable problem. Glad its fixed. Keep those cable connections clean and tight. And hum is never acceptable.
    +1
    tonyb wrote: »
    Never acceptable in my home anyway. I'll hunt that sucker down or it will bug me to no end.
    Same here! The only time humming is acceptable is when the system is not working, then I hum like hell!
    DARE TO SOAR:
    “Your attitude, almost always determine your altitude in life” ;)
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  • leftwinger57
    leftwinger57 Posts: 2,917
    edited October 2011
    I guess my spelling still needs major impruuuvement.Shame on me after all this time ...lol
    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
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  • DarqueKnight
    DarqueKnight Posts: 6,765
    edited October 2011
    bklynNupe wrote: »
    I had a ground loop in my 2-channel rig that was caused by Cablevision although my HT is totally separate.

    BN,

    I can't respond to your PM because your in box is full.
    Proud and loyal citizen of the Digital Domain and Solid State Country!
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