Jump to content

spike9876

  • Posts

    32
  • Joined

  • Last visited

  • Country

    United States

Retained

  • Member Title
    Newbie
  1. Update: Got with me a 50ft extension & a cheater plug (small adapter that converts the grounded 3-pin connector on the power cord to a 2-pin connector.) Below are the steps I did. 1. Used a 50ft extension cord and connected HTPC to the living room... (I don't have any electronics in that room besides a fan that was not running. Static/Hum is present. -- Does not make any sense to put a new line in room and the problem is not the line. 2. Removed all power cords from power conditioner and put all components including HTPC on power strips. Static/Hum is present. -- Power conditioner appears to have no effect. 3. Purchased a "cheater plug". Did not make any sense to try each component so I went straight to the HTPC and tested. With the cheater plug, connected the HTPC directly to wall outlet. Static/Hum is gone. Problem solved !!!!
  2. Yes, I agree... I only have a 6ft extension cord in my apt... and when I used it last night, I used a different outlet... but it was in the same room where I have my setup ( and probably using the same electrical breaker). I do have a 50ft extension cord in a different location. Today I will get it and experiment with different wall outlets in my apt... probably the furthest outlet I can find.... I actually have 2 rooms where no electronics are connected to outlets.... so those rooms I will try first. If that doesn't work... Then I will look to buy the best noise filter I can find... but I have a feeling that the above step will work.
  3. Nope, I disconnected my router and no difference.
  4. What is bias ? I connected PC to wall then disconnected router, sub and amp for bass driver and electrical noise did not change much. Not sure what is the bias... Currently researching ground looping.
  5. I started to look at ground looping issues for PC... and found a youtube video where my exact problem is described except his issue seem to occur when he does some action on PC and mine was constant. You can jump to the 3min mark he details his issue. He uses a ground loop isolator to solve his issue... but He uses a RCA cable with ground loop isolator but I connect using a HDMI cable to get audio and video... Still investigating the ground loop isolator.
  6. I get so much noise connecting to the wall directly.... that its not funny. On the same electrical outlet there are 2 sockets. On the other socket I have most of my other devices connected. Maybe I get so much noise because of this ? When I connected my extension cord, I did use a different electrical outlet... but noted that is more subdued but noisier than when I had it connected directly to outlet. Yes, I do believe I need to ground properly the HTPC.... But how do I do that ? BTW, i do still hear electrical noise... but it is so much better than before.... Before it was constant but now I heard it once in the last 5 mins and I have not heard it again.... So, in reality i still have some noise but it is hardly noticeable.
  7. I have an update: I actually had my HTPC power plug connected to a power strip. I moved HTPC power plug directly to electrical outlet. Restarted. I was very surprised. Noise was much WORSE !!!! It reminded me of watching movies where they have a radio scanner looking for a frequency.... Noise was like x5 worse (maybe more). Next I used a 6ft extension cord and connected HTPC. Noise was like plugging directly to electrical outlet but subdued. Connecting back to a power strip was much much better. Actually, connecting HTPC to power strip... I hardly hear the noise now.... Before, I did have my cable modem router connected to same power strip.... Actually, I don't hear any static noise now.... OMG !!!! Before I start celebrating.... I'm going to use my HTPC for a few days before I celebrate.... But seems to me that connecting PC to a power strip and having other devices connected to same power strip.... somehow electrical noise is getting picked up.... I do see that the power strip does say that it has a noise filter. Maybe my solution is to buy a proper electrical noise filter ?? The power strip that I have must be > 7yrs old.
  8. This is an interesting comment/suggestion... The only thing is that I moved about a year ago and I have same issue after the move. I don't think it affects plugs for speakers because it only happens when I turn on my HTPC. I used to connect power cord for PC to a power strip but currently plugging power cord directly to electrical outlet. I don't it will solve the issue since I had same issue in a different location... But I will experiment connecting to a different electrical outlet.... Also, I do have a gaming desktop... I will move my gaming desktop PC to my HTPC location and switch PC's and see if I have same issue.
  9. Hi, So I have a Sanders Sound Electrostatic Speakers... I have all components connected to a Denon Receiver via HDMI. If I turn on my PC, I get a slight noise coming from electrostatic speakers. Hard to describe the noise... When I play any audio/movie I don't hear noise ( I suppose the volume is higher than the slight noise I get). Even if I switch components... let's say if I switch Receiver to my BluRay player... I still hear noise... The noise goes away only if turn PC off. I have always thought, maybe noise may be coming from power supply and it is somehow transferred to receiver... dunno.... This has been going on since i switched to these electrostatic speakers. When I had normal speakers, I did not hear this noise... Any ideas ?? Thanks in advance.
  10. Hi CR250, I don't have ML... Speakers are SandersSound M10d... similar to ML but implementation is done differently. Crossover is not done in speaker but by external digital crossover... hence DCX2496 is used. I do need an external amp for both ESL and bass driver... Currently looking to replace XPA5... As mentioned, I was looking at Behringer EP4000 (2 Channel stereo amp) but I am concerned about fan noise... Not sure if PRO audio amp would compare to a consumer amp in terms of audio quality... Yes, I do plan on updating my pre-pro in the future... possibly in the summer... If you have any suggestions on a stereo amp... Please let me know. Thanks.
  11. Hi. In my current setup I have several devices connected to my pre-pro including HTPC, cable box & amazon fire TV and they are all connected via HDMI. For BluRay & music I use my HTPC. For my main speakers (hybrid electrostatic speakers with bass driver) My HTPC Setup is as follows: HTPC -> Integra DHC 80.3 PRE-PRO -> Behringer DCX2496 (Digital cross over) -> Emotiva XPA5 AMP -> Bass driver of main speaker -> Magtech Amp -> Electrostatic Speakers -> Subs may not be clear from above HTPC -> PRE-PRO -> DCX2496 -> XPA5 -> Bass driver of main speaker -------------------------------------------------> Magtech Amp -> Electrostatic Speakers ---------- PRE-PRO -> Subs I'm in the process of bypassing Audyssey from my pre-pro and will replace Behringer DCX2496 with dbx DriveRack VENU360... With Venu360 I will attempt to see if i get better results vs Audyssey using EQ and Parametric EQ. After change, setup will be as follows HTPC -> AVR PRE-PRO -> dbx DriveRack VENU360 (Digital cross over) -> Emotiva XPA5 AMP -> Bass driver -> Magtech Amp -> Electrostatic Speakers -> SUBS (Probably crossover will be 24Hz) may not be clear from above HTPC -> PRE-PRO -> DCX2496 -> XPA5 -> Bass driver of main speaker -------------------------------------> Magtech Amp -> Electrostatic Speakers -------------------------------------> Subs Note: I'm also looking to get a 2 channel amp to replace XPA5... Currently looking at Behringer EP4000 I always thought about going with a USB DAC... But always wondered if I would get a day/night difference vs using HDMI to AVR. So from above... any suggestions on improving sound ? Thanks
  12. Forgot to add... When taking measurements... I mainly take them from main Listening position.... Frequency response does change when I change mic in a different seating position...
  13. I use XTZ Room Analyzer II Pro (this comes with a mic). [h=1][/h]My room is a multipurpose... It opens to a kitchen and a living room... so it is somewhat a bit open space...
  14. Yes, software does measure time decay... If I remember there was a slight issue at 63Hz.. but not much... I also used software to determine best sub placements... The first & second harmoincs... how are these treated ? With bass traps ?
×
×
  • Create New...