Free Shipping on All Orders 1-866-764-1801

Vist our Online Store
+ Reply to Thread
Results 1 to 4 of 4
  1. #1

    Member Sales Rating: (0)

    Join Date
    Jan 2013
    Posts
    12

    Unhappy PA D5000.5 Amp Hiss (even when RCAs unplugged; disappears when sound is played)

    Hi Guys! I need advice. I just received my PA D5000.5 amp from Amazon and installed it just a few hours ago. Before the installation of the PA D 5-channel amp, I had another aging temporary 4-channel non-polk local amp to power my MM6501 seps (front) and DB651 coaxials (rear). With the temp amp, I had no noise besides the high-pitched powering off sound when amp is turned off

    But with the PA D5000.5 amp, I'm getting some hiss/whine even if:

    1) Radio is OFF (same scenario if my volume is set to 0 or fader/balance set to extremes)
    2) RCA inputs are NOT plugged to the amp
    3) Engine is OFF (I get engine whine in addition when engine is on).

    Here's the thing: when I turn on the radio and adjust the radio volume/fader/balance so a speaker plays a sound. The hiss from that particular speaker is gone even I turn the radio off afterwards (and on again) or just the particular speaker using fader/balance controls. This is true even when I start the engine

    But any speaker that hasn't played a sound since initially switching the car from OFF to ACC will have the hiss/whine

    The hiss doesn't increase with the volume.

    NOTE: My remote on wire is connected to the car's ACC so the amp turns on immediately. Unfortunately, my factory head unit doesn't have a remote out.

    But then again, with the temp amp, it doesn't matter, I don't have this noise at all.

    What's wrong with my all Polk setup?
    Last edited by fleas2016; 01-11-2013 at 09:26 AM.

  2. #2

    Member Sales Rating: (13)

    Join Date
    Mar 2002
    Location
    The Mars Hotel
    Posts
    31,296

    Default

    Try posting this in the "On The Move" section below.
    '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 turd by the clean end."

  3. #3

    Member Sales Rating: (0)

    Join Date
    Jan 2013
    Posts
    12

    Default

    OK, done. Thanks!

    I'll update this thread with new information anyway just in case the Polk support staff will check this:

    [UPDATE] I have some more points that I found out about my issue:

    1. Let's say the car is on ACC with my HU off and I am getting this buzzing sound. If I open the driver-side door, I get this alarm that my key is still in the keyhole. Pretty normal, right. But once I close the door, the alarm stops.. AND so does the buzzing from speakers

    2. After two hours of driving with stereo on (moderate levels most of the time with some elevated levels towards the end), I checked the amp. The PA D5000.5 is hot to the touch (not scalding but I can't keep my palm on it for more than 3 seconds). Now, this is a class D amp and I believe my temp amp is a class A/B amp and its freaking huge, but I never felt it this hot.

  4. #4

    Member Sales Rating: (0)

    Join Date
    Jan 2013
    Posts
    12

    Default

    Previous Amp:



    New Amp:


Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

     

Similar Threads

  1. LSi 15 FL/FR hiss sound
    By b1gf00t in forum Troubleshooting
    Replies: 2
    Last Post: 10-23-2012, 11:51 AM
  2. Been unplugged quite a while just needed to vent out
    By doggie750 in forum The Clubhouse
    Replies: 33
    Last Post: 07-02-2010, 08:19 PM
  3. Korn - Unplugged
    By VR3 in forum Music & Movies
    Replies: 26
    Last Post: 05-23-2010, 12:43 AM
  4. SDAs unplugged
    By bigaltx24 in forum Vintage Speakers
    Replies: 67
    Last Post: 05-07-2010, 06:13 PM
  5. Tweeter hiss: lsi15 = hiss, lsi9 = no hiss
    By SlowcarIX in forum Speakers
    Replies: 27
    Last Post: 03-28-2008, 08:29 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts