Hello, I'm looking to remove the hum in a PA system, but I see most people are talking about radios, will this work?
1729830
Sorry the link didn't work but here's the name for it. DB Link NF105 Reference Noise Filter
1729831
You migh want to try something else I don't think this would work for you it did not work for me,here's a link for the one tha I'm sure it would work I've used them before and had no problems.good luck
1729832
You migh want to try something else I don't think this would work for you it did not work for me,here's a link for the one tha I'm sure it would work I've used them before and had no problems.good luck http://www.amazon.com/gp/aw/s/ref=mw_dp_a_s?ie=UTF8&k;=DB+Link
2227662
Hard to say for sure. For our office the issue was rah we could hear conversations from adjoining offices and that was a problem. The unit garbled and muffles the sound quite well. With a noise like road construction, it might just kind of even out the sound so you hear the unit's hum consistently and maybe not so much the up and down aspect of the outside noise. I did also try the Marpac-Dohm type and found this unit to be far superior, largely because it has varied sounds and volume controls. Good luck!
735876
I think you can. Connect your guitar (cable with 1/4" jack) into Input of PDC21, and then XLR M/F cable from PDC21 XLR output to XLR input on your mixer. I use PDC21 between output of mixer preamplifier or keyboard and input of power amplifier to get rid of hum noise and it works.
526475
Hi Kenny. Ground lift can sometimes be used to reduce or eliminate 60Hz hum, caused by ground loops. Ground loop can occur when you have multiple pieces of equipment connected to different power sources. Most of the time you'll want this off (not lifted) unless you are experiencing hum. Coax is for connecting similarly equipped digital equipment (only). It's best used to sync multiple audio interfaces. If you don't know what you need it for, you probably don't. Hope this helps! :) ~ Heather
2011848
I don't know. All I can tell you is that I have a tv, computer, two stereos and dvd player plugged in. If I connect any one of the to another or turn all on at once I get no hum or static. The volume is a little reduced with each button pushed down but no other issues. It shouldn't matter but maybe a shielded cable? I used to have an old computer that produced radio frequency interference. It made static on the older tube type television if it was close to it when I connected cheap audio cable to it.. just throwing that out. Good luck.
675485
This may not get rid of all the noise but it should help reduce it. I bought some of these to help reduce some rf in some of my ham gear that kept the radio in transmit mode and they did the job to solve my problem. I just snapped them around some of the wires and cables that I suspected was the source of the rf noise.
1741346
Sorry to be so long, but while the problem seemed to clear up, it suddenly developed the hum again. I have a Technics receiver with a phono output, so I have the turntable set to Phone Off. This worked until today, when it suddenly developed a hum, and when I tried to reconnect the wires the white wire produced a pronounced hum and the red wire produced an explosive pop. I played it this afternoon without incident, and have played it for hundreds of hours since last summer, but today the hum came back with a vengeance.
1741343
have you tried what Wm Mcbride suggested? I am considering buying the AT-PL 120.I have a Technics SL 23. Without connecting the ground wire will give the HUM!
1327638
Make sure all of your equipment is properly connected. Do not use a device that removes the ground on power cords. I had a computer power supply plugged in with a ground eliminating adapter and it created a lot of buzz. I set the volume, treble, and bass all to 12:00 on the speakers.
1345366
Yes, I have recorded PA systems before with this, the quality of the sound is degraded but it works.
1189758
it has a loud hum . I grounded the units directly to the Case of the Computer. It reduced the hum significantly. I replaced both units just last week because these are pretty much junk in my opinion.
766187
The reason you are hearing the hum is because your transformer plates are slightly loose. The metal plates in the core are laminated and can become separated, you may be able to reduce or eliminate the hum by painting a varnish or shelac onto the core and letting it "soak in". I would suggest several thin coats to do the job. The metal core itself can be loose and vibrate as a whole too so you may need to seal that up the plastic bobbin that the copper windings are wound on. Otherwise if all else fails this unit is quiet, at least the one I got is. You may also try insulating between the transformer and the joist if yours is mountable that way. Hope that helps.
10789
This amp has a hum which you can not eliminate. I my opinion the hum out weights the pre-sets.I was not happy with it, so I returned it.
1341436
Also, if possible only use equipment with a grounded 3 prong plug. Without the third ground connector on the power cord the equipment can't be properly grounded and so ground loop hum will be harder to avoid ...
1220560
I have not noticed any power supply hum at all, it has been an excellent unit for me. It should power a 75 watt radio just fine. It's a 12 amp constant, 14 amp surge power supply, which translates to about 165 watts peak draw at 13.8 volts DC. Source for converting amps to watts: http://www.rapidtables.com/calc/electric/Amp_to_Watt_Calculator.htm
607429
This device is used mostly to get rid of noise (hum). I use it between mixer output and input of power amp to get rid of coupled AC noise and it works. Output signal (audio) from laptop should be clean and connecting to mixer using mini plug to RCA is OK.
481229
...short answer: Yes. HOWEVER--As was noted by another reviewer, there is a slight hum that you may hear while using this unit, and it may be distracting if intense concentration is required. (That's just my opinion, however.) If that is not a significant issue to you, then you will likely be very satisfied with the purchase.