Amp buzzing and whinning issues

POLKHT
POLKHT Posts: 138
edited November 2012 in Electronics
I'm having issues with my amp. First issue is that when I remove the RCA connections, right after the amp has been on, I get a buzzing noise. Second issue is that when I turn the amp off, a minute or two after, I hear a whinning noise through my speakers.

Anyone know what the issues might be?

Thanks.
Post edited by POLKHT on

Comments

  • tonyb
    tonyb Posts: 32,967
    edited November 2012
    One issue is to never remove the cables with the amp on, you could very well create a short. Hearing a sound after an amp is turned off is usually the caps discharging, most common on older amps. What amp in particular are you talking about ?
    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
  • POLKHT
    POLKHT Posts: 138
    edited November 2012
    tonyb,
    The amp I have is a Acurus A200x3. I don't think the amp was on when I removed the cables.