This was,by far, the most informative and useful explanation of ground “noise” from turntables that I have ever seen or read. Great video!

People like you, sir, makes the Internet a better place. Thanks a lot!

@iramemphis4968

2 жыл бұрын

I guess im asking the wrong place but does someone know a way to log back into an Instagram account..? I was stupid lost my login password. I love any assistance you can give me.

@kaidendominic897

2 жыл бұрын

@Ira Memphis instablaster =)

@iramemphis4968

2 жыл бұрын

@Kaiden Dominic I really appreciate your reply. I got to the site through google and I'm waiting for the hacking stuff atm. Seems to take quite some time so I will reply here later when my account password hopefully is recovered.

@iramemphis4968

2 жыл бұрын

@Kaiden Dominic It did the trick and I finally got access to my account again. I'm so happy! Thanks so much, you really help me out !

@kaidendominic897

2 жыл бұрын

@Ira Memphis glad I could help xD

It’s nice to hear a knowledgeable person explain a problem in plain language. Thanks.

Watching this and just getting the difference between HUM & BUZZ is worth it's weight in gold. Thanks for making this video Paul. Really appreciated.

Thank you mate, purchased new studio monitors and thought there was an issue with them. Changed the cables so there was distance between the speakers and turntables, hum gone. Legend!

I recently started having huge hum when trying to play my TT. My TT is on a shelf right below my 64” smart TV we just got. I didn’t have a hum until we got this new TV. With the older TV, no hum. Must be the new TV given the only change. Thank you Paul!

Thank you very much for this. Two minutes in to the tutorial I discovered why I had hum that overpowered any joy from the record. Many thanks. Ben

i also found that if the wires were to close together it made a hum.. but now i have earthed properly i have no problems at all.. great video again Paul. 3 yrs late in watching but still find everything mindblowing & always interesting .. Paul

Im glad i clicked on this video. Explaining the likely source of the different types of interference and what they sound like (and what Hz!) pretty quickly answered an important question I didn't know needed answering. Nicely explained.

Another great post Paul, explained ground loops and difference in potential. Had a friend with a ground loop and it was a cold solder joint in his integrated amp. phono stage.

Thank you for mentioning your how to guide on your website! We just moved our record player console and it started buzzing. First recommendation was to make sure it wasn’t next to other equipment interfering with the signal-and that was it! So glad we didn’t have to open it up and mess with it.

Thanks for taking the time to make these videos.

Thank you so much! Very helpful and sorted my amplifier 'buzz' problem over here in Kent UK! Best wishes, Nathan

Love listening to this guy, very easy on the ear and informative...I’m from Liverpool!

@InsideOfMyOwnMind

3 жыл бұрын

I wish I could hear you speak. I love the accent from there.

I thought I was going nuts! Plugged my receiver into the same outlet as the turntable and buzz was reduced greatly. THANK YOU!!!!

Thanks for the careful explanation! Cheers from Brazil.

Wow, great job in describing all the issues in laymen terms! I feel well educated on this topic now!

Thanks Paul love your videos, I mostly tinker with mid-fi gear.... vintage A/D/S and Polk Speakers, Luxman, Kenwood , Marantz Amps, preamps, etc, mostly CD'S these days. Just started the digital, Bluetooth thing I call it. I still haven't advanced from The late 70's mid 80's....LoL. Thanks for taking your time to share information.

Hello Paul, you’re an excellent asset to your company. Congrats.

Great help thank you from the UK

i cant believe all i had to do was give the turntable more space to get rid of the hum .. thank you so much!

Greetings from Vancouver 🇨🇦 Thank you very much for posting your video. You've been Super helpful.

Excellent representations of buzz and hum!

Thank you so much, Paul. I plugged my preamp into a different outlet and the humming stopped.

fantastic explanation even for non electrical engineers :) thank you very much

Thank you so much. I was ready to toss the beautiful B&O turntable I was given. I feel so dumb not knowing what to do with the ground wire. Now I get sweet sounds.

Thank you. I lifted my turntable up a few inches.

Extremely informative, thank you!

100% respect sir.. but i loved the way you explained the hum & buzz.. because i thought you did very well by not bursting out laughing when making the great sounds you make.. so thank you again Paul from another person who can see that you enjoy yourself.. Paul

@Paulmcgowanpsaudio

4 жыл бұрын

Thanks! Much appreciated.

Greetings from Cuba, your post helped me a lot with my new (but old AIWA D-50) turntable. Thanks a lot!

@Paulmcgowanpsaudio

3 жыл бұрын

Cuba! Wow. Thanks for reaching out. Your country seems so far away yet we know it is near. Be well and I hope to someday visit.

@alejoniux

3 жыл бұрын

PS Audio you are welcome any time. Not that far, musically speaking we are pretty close. Thanks for your videos!!!

With the aid of your HowTo samples i was able to detect the hum issue i had. And was able to eliminate this by adding a cable from the motor part to the ground of the 240V! Now it is all oh so quiet- except for the music of course....Thanks!

Excellent, complete advice.

WOW - Hooked up the ground wire and now it sounds so smooth. Thank you so much Paul.

Thank you this video helped me fix my issues with my record player was a ground issue now no hum

Haven't fixed my hum but notice it gets louder if I touch the cartridge. I'd just assumed turntables make that kind of noise as it isn't overpowering. Everything is properly grounded on a pre-amp and I tried grounding it on the amp as well - the same. Just want to say I enjoyed the video anyway: the advice was friendly and easy to understand. I'll check you out for more help in the future. Thanks.

@godfreyd6017

Жыл бұрын

No matter how much you ground the TT or pre amp or used electric power earth, if the humming does not seizes, you are still away from the cause. The 1 mv signal is amplified n number of times and so is the hum. First locate the source, which is an external noise from other equipment, if there is non then the issue is intrinsic, most TT are made of wood/plastic/ fiber body and the is nothing to shield the tone arm or the internal wires inside the tone arm or beneath the the tone arm base. Try using some metal tin shield or aluminium wrap which are grounded for the below tonearm areas. For the top areas check ground extends to all parts ,there should be no pick up of buzz when touched. Try sheilding tonearm internal wires till the cartridge. Last try a metal dust cover which is grounded. Other way is use balanced connectors from pickup to balanced preamp input but.thats a bit complex Next is your preamp to be treated from all sides for metal or aluminium body sheild. These stage is very sensitive to buzz hum and get to zero hum condition before connecting the TT. If this doesnot help there may be a product quality failure or a product design failure. Try another preamp. Long check list but hope you succeed

Thank you! I discovered my BUZZ was from a Sonos unit!

My god, I've been educated. Didn't realize that was a ground wire. Thank you!

Thanks bud. I’ll also check out your website. 👍🏼

I am very much impressed by you...love you from Pakistan

@rainbowmat8204

4 жыл бұрын

@Chunst Bogner thanks bro your comments are very valuable for me

Yep, ground wire that runs with the RCA inputs! Didn't it was all that important. Thank you sir.

Hi, Paul, I had this problem, I had my turntable grounded to the phono preamp, but I was hearing radio station feedback through my system. This only happened when I played vinyl. I ended up taking another ground wire and going from my phono preamp to my regular preamp and this stopped the radio interference. I did this as an experiment, because my local dealer couldn't figure it out.

Thanks for this video. After putting my SL-DD22 back in service, I've had a slight buzz (only audible when in "Phono" mode at higher volumes with no music playing). I verified all grounds to everything, and no joy. Thanks to this video and one of the posters below, it turned out to be my (presumably) cheapo RCA cable from the table to the NAD 1600. Replaced them with some massively thick shielded cables, and no more buzz! 😃👍👍

Great help for and audio novice thank you!

Thank you, sir!!

In my experience and that of my video viewers, almost all the time the hum can be solved by earthing the preamp i.e. you’d want to run another wire from the ground lug to the earth pin in your wall socket. However you can also use an earthed liner power supply for your preamp because those should have the negative (-) terminal connected to earth as well which in turn earths your preamp’s chassis.

@rumbodeglasas2797

Жыл бұрын

can you axplain the process a bit more if dept?

@BrianSu

Жыл бұрын

@@rumbodeglasas2797 just take a wire and connect one end to the ground lug on the pre-amp and the other to the earth terminal of your wall socket

Thank you for making this video

Awesome learned alot I couldn't find information on elsewhere, thank you sir.

Thanks Paul.

Paul McGowan is such a nice guy... Lovely to listen to

Always hook up the ground. That is why there is a terminal next to the Phono inputs. Also when I was a kid and would blast Iron Maiden my tone arm would pick up the sound waves from the speakers and a hum would start to grow and louder and louder. A proper balanced tone arm helps but I found if I wanted to go loud I had to record it on tape and play it off it.

On my pro-ject debut carbon es I had to ground the wire and it was all better for me. The tone arm would shock me before I grounded it so I asked my dad what was going on and he just said all you had to do was ground it.

I discovered the hum I was dealing with was from a Chrome Cast device on my tv.

Thank you! The hum is now gone! The arm wasn't grounded correctly

Paul, my preamp makes no hum when nothing is connected. But when i connect just the cable and no turn table there is a hum. Reduces hum when i connect to the turntable with the same cable. If volume is loud enough and space between tracks the hum is very audible. Both grounds are same and ground channel in cable connected properly too.

For any one that had my problem, the buzzing wasn't coming from my turntable but the stereo cassette receiver beside it. I only realised this after moving them further a part!

I have had a buzz between my Technics SH-11P3 turntable and my Pioneer A400 amp recently after putting it back into service. Took me an hour or so to work it out I eventually tracked it down to the $30 IXOS phono cable to connect the above. Even a mains cable coming close to this cable caused a significant increase in hum/buzz. I replaced it with a $2 phono cable I bought some time ago, Wow! problem solved even at max volume with MC cartridge no buzz/hum. Beware of expensive imitations.

@ossiebird0

4 жыл бұрын

@Chunst Bogner and you speak for the entire human race?

I recently discovered that by physically moving my moving coil pre-amplifier to the opposite side of my amplifier and also re-routing the phono cables away from my mains distribution block, I got rid of a low level hum that became a nuisance at high volume levels. Hope this is useful if your problem is other than an earth loop issue.

@brianmedeiros6845

3 жыл бұрын

I have an audio technica LP120USB turntable that began humming while playing a record at high volume levels. Never had this issue. It has a sub turned the sub off definitely through the 2 Edifier powered book shelf speakers. Will check the wires etc Thank You

@ChrisWoodBandit

8 ай бұрын

​@@brianmedeiros6845i have that same record player and here i am un the same boat!

Groundloops are very tricky sometimes. The main goal is to avoid or reduce the current to flow through the audiocables, thus inducing error signals due to inductive forced modulation.

@carlosmante

6 жыл бұрын

Yes.

@jonathansturm4163

5 жыл бұрын

Or no... Any old piece of insulated wire the right length will do. No need to buy anything. People throw out electrical appliances all the time and you can extract the wire from the power cable.

You explanation of buzz vs hum, may help we fix what I was describing as a buzz in a pa system I just inherited. Most low end audio but the same principle.

I'm having that problem right now. First I bought a new Thorens turntable and the cable that was supplied with the turntable had no buzz or hum. But I tried a higher-quality interconnect and I got nothing but buzz and hum. So I decided I did not like the Thoren's turntable and went and got a new Technics turntable. Same results. The supplied cable with the turntable works perfectly fine, no buzz or hum but any other higher-quality cable will buzz and hum like crazy I can't figure it out.

Whoa! Things I didn't know...sheez!

Clear explanations ..... I'm trying to resurrect a 1956 Mono Magnavox record player. I have a slight hum ,,, no buzz, The tone arm has three wires: Red, White and Black. But the Cartridge has four terminals. So I have the red on left, white on right and black next to the right ,,,, terminal between red and black is unoccupied, Changer does not work but will take apart and clean & Lube .... It brings back memories.

@persona250

3 жыл бұрын

The clue is in the title of the record player "mono" . get a mono cartridge

My turntable RCA leads are rather short so I put RCA extension cords on the ends of them I get a buzz when running through the phono input on my receiver but when I switch on my built-in preamp on my turntable and plug it into an aux input on my receiver I don't have a buzz would putting a ground loop isolator remove my buzz when I'm plugged into my phono input with the built-in preamp turned off

Many times an induced hum is affecting not the turntable/cartridge directly, but the phono preamp circuit.

Are we talking static hum due to earthing issues... or are we talking vibrational hum through platter.. I was just ripping to my pc "shine on you crazy diamond" and Interestingly enough the vibrational hum of the motor, is at exactly the same pitch as the synths that start the track... however I would like to remove this imposition... I already satisfactorily dealt with the earth hum by making a little loop of copper wire which goes over the spindle and is connected to the earth... However the only conceivable way I can imagine of dealing with the vibrational hum.... would be if I had a bit of sponge about a centimeter thick in the shape of my turntable mat!!!

Any way out when your electrical installation is from the 70s and isn't grounded... (excluding having heavy electrical works done) ? no issue with any sort of hum from the TT, but between the home-cinema amplifier sometimes serving as pre amp, and the power amp...

HHAHAHAHA I was just ground to a random piece of steel

My Kenwood KF-31 was remedied by plugging into a different outlet. My JVC L-A11 has no ground wire,I checked and that is the norm for the JVC's smh

I'm sure we're about the same age and therefore, I know that you must be aware that high-end Turntables (audiophile class), have been around and repeatedly perfected for years. Turntable manufacturers that deal with that level of equipment have it down to a fine science. The electrical ground issues that you mention are actually less common because most turntables have a ground wire pre-attached and those people who aren't audiophiles tend to figure out that it probably should connect to something. That leads them to read the manual and ultimately, connect the ground wire. Of course, there are those who will not be as careful as they should and fail to connect it properly or to the right location. The mid to high-end turntables often come with a ground wire connection point, but the wire is not attached. They usually supply a package that contains separate ground and audio cables, (like my Fluance RT-85 did). Typically, anyone who would buy a turntable in that price range would likely be an audiophile or at the very least, experienced with the setup and use of that level of equipment. There's an exception to every rule and I have no doubt that there are people who buy high-end audio equipment that aren't audiophiles, and are not familiar/experienced with the equipment and even those who don't read the manuals provided. Your video explains this and the way the ground works as well as the 'hows, whys, and wheres' to connecting this wire and should help those folks out as well. As you stated, there are a number of possible reasons and more than one of the possible problems can exist when it comes to turntable hum. However, the most common cause for that hum is low frequency vibration/feedback. It's actually a difficult problem to deal with and I've battled with it for years. Every time I move my system around, get a new turntable, move to a new home, etc., I have to deal with the bass frequency hum that can build to a tremendous, even painful, level due to the harmonic resonance of the surface my turntable is on when my sub-woofers kick in. In fact, I'm in the battle right now because I have recently re-positioned some of my speakers and components. I forgot to test the turntable afterwards and this morning, I decided to play an LP for the first time since I moved things around. Now I have to apply some new tricks to deal with it but I'm not optimistic. I use the turntable for recording to tape most of the time anyway. I have three Reel to Reel decks and I typically play my music through one of them. I record the music from the LP to the deck and monitor the recording through headphones. Then I play it all back through speakers as loud as I want without worrying about the low-frequency feedback. I'll continue to do things that way because at present, my home is not arranged in a 'turntable-friendly' way. Expensive "acoustic feet" will only reduce the bass frequency feedback but the low octave sound waves not only travel through the floor and frame of the house, they travel through the air. When those sound waves strike the turntable's chase and/or tonearm, the vibration builds and eventually the stylus and the sound wave frequency become harmonically sympathetic. There are ways to beat that problem but usually it requires placing the turntable in a separate 'sound-proof' room, which isn't something most of us would likely have as an option. Believe it or not, the higher the quality of the turntable, the more difficult the problem becomes to resolve! Again, as you pointed out in the video, the cartridge and stylus assembly of these turntables are designed to be especially sensitive. The cartridge on my turntable is a mid-level cartridge, (Ortofon 2M Blue), which runs between $260 and $280. Cartridges in the $800 to $1100 range are even more susceptible to harmonic frequency feedback yet a $60 cartridge installed in a $150 table can play with no perceptible hum at all! I had a lower quality turntable and cartridge that was located almost directly above my 300W sub-woofer and could play at loud volumes w/o being affected by the sound waves or vibrations. When I replaced it with my present turntable, which cost 6 times more than the one I had, I couldn't even turn the sub-woofer on without triggering a quickly building and over bearing hum. For this problem, I recommend looking into special acoustic feet and materials but be warned, they are expensive. Even though they'll reduce the susceptibility of the turntable to become affected by the low frequencies, most will not eliminate the problem. For that, you really need to build a special room where the turntable is isolated from the speakers and room vibration. It's really a very tough problem for some people like myself because I have all my components located on the second floor of my two-story house. I really would need to start by putting the turntable downstairs, which isn't an option for me at this point. As a serious audiophile since about 1978, I have built and rebuilt my analog component systems through the years. I'll probably never be able to afford my ultimate 'dream-system', (which would be primarily comprised of the top-line McIntosh and Klipsch combinations), but at present, my 'centerpiece' (if you will), is a Mac MC 2105 Power Amp and it feeds to my Klipsch speaker systems, though, not the Klipsch speaker models I would own if I could afford them; (4, full size Cornwalls). Thanks for the video! FWIW, Rich

@6273graham

4 жыл бұрын

Use a 12 inch cycle inner tube, experiment with pressure, if successful make a simple plinth with clearance to inner tube. It has worked for me.

@richpaul8132

4 жыл бұрын

@@6273graham Graham, I can't even image what you're talking about but whatever it is, if it worked you should try to see about diagram and maybe even a patent.

Hello I have probably watched this video 15 times and another 200 videos in the hope of getting rid of my hum 60hz I believe. So here goes equipment Rega p1 plus built-in phono stage. Upgraded to a custom build with a rega 250 arm. Schiit mani. Cable talk phono interconnect. Chord rumour 2 speaker cable. Tacima power conditioner. Rega carbon cartridge. Nagoka mp110 on new table. Cyrus 8 amplifier. Cyrus psx r. Q acoustics concept 20 speakers. On the rega p1 when the moter was spinning and amp on at higher volume buzz hum On the new table when just the schiit is connected to the amp same buz hum. I have a bluesound node 2 connected to the same amp and at any volume 0 hum buzz If I disconnect the leads from the node 2 the buzzing goes down quite a bit on the phono channel but still very present. I have tried unplugging everything. I have tried moving the turntable away from speakers, amplifier I've tried different quality phono cables. I am at a complete loss and have also developed a audiophile problem in the process. Is there anything else I can try. Thanks Ryan.

@Paulmcgowanpsaudio

3 жыл бұрын

First thing you need to do is determine if the hum is actually 60Hz or is it 120Hz. Go here: www.psaudio.com/ps_how/how-to-find-and-fix-hum/ listen to the two examples. If it's the former then you likely have one problem and, if the latter, another. Let me know. You can email me directly paul at psaudio.com

Is it safe to further ground the phono preamp to the receiver (through a wire) to eliminate hum?

PROXIMITY! My turntable is on the shelf directly above my amplifier. Probable cause?

@Keving3

4 жыл бұрын

yup Anything with a winding of wire that got plugged in could turn into a great little hum transmitter, (something Nikola was trying to perfect)

I use a vintage Kenwood receiver that has a grand lug along with my turntable But the plugs from both units is only a 2 prong plug. How can it be grounded? I get a hum when the music is off and I increase the volume.

I've been getting this annoying buzz out of an old Sony PS-LX250H (same chasis as the old LP60s) and finally tracked it down to the power trqnsformer coupling through the built in preamp board. Short of butchering the current setup and epoxying the transformer on the other side of the turntable, I can't think of a good way of resolving this.

Paul, I have the hum sound coming from my speakers using my Marantz 2250B, Phillips 212 turntable and a Stanton 681ee cartridge. The hum is about the 50-60hz and occurs only on the turntable phono input. The hum also occurs if I turn the receiver w/o music but with the turntable with the volume knob turned to the 1 o'clock position. I have never listen to music past the 10 o'clock mark on my receiver. The turntable is grounded to the receiver properly. So is this then normal for the hum. The receiver is quiet so no hum from the 40 y/o receiver. As always thanks for all of your video's and knowledge . Dave

Any tips for shielding material to block EMI from a transformer in a tube phono stage?

I had a ground loop hum on my Kenwood KD-500 TT. Fixed it with ground wiring to my pre amp and it was gone, then got a new stylus, attached it to my cartridge and now there is intermittent ground loop hum again! Any ideas as to why this happened and how to fix?

The basic principle is star-earthing, that is all earth points go back to one place and no loops.

Can this ungrounded hum and buzz be precent in other audio equipment other than turntables? I might be dealing with this in my system. My equipment also might be too close together in the console 🤔

that dog looks just as confused as I am rn

I have a Technics SL-Q350 it has a hum that is always present no matter if it’s plugged into power or not. Ground is plugged in and gets worst when unplugged. If I disconnect the cartridge the hum is amplified twice as loud. Tried different rcas, receivers, pre amp to a powered speaker, all the same hum.....any ideas?

Your definition of hum from MM to MC is informative but the overbearing hum I’m getting is like a harmonic interference that is being generated from outer vibrations. I have a preamp that recognizes the MC stylus but I cannot improve the volume any without the harmonic hum overwhelming the turntable. Do I need a new tone arm or cartridge head?

OMG I thought my turntable was just old!

Thank you!

Got a bluetooth turntable plugged into my sansui 4500 quad through a headphone to av ran to the phono input, problem is I also have a jbl floor shaker sub but dont have very long wire to kinda move the player out the way a little bit I think it's primarily ground related. how do I ground this turntable?

thanks so much! i was able to sort it out - it was the higher wine the 60 hrz. out of desperation, I grounded the turntable to my amplifier - buzzing gone :)

I know it's an old video, but one more thing that can cause hum is bad wireing in the tonearm: if the ground wire on one channel is broken both channels will hum with the offending channel having louder hum. That happend to my 1974 BIC 940 turntable.

Paul, thx very informative vid . I have Dual CS 5000 TURNTABLE with a ortofon OM 20 cartridge mounted in a Dual turntable headshell. Purchased in 1987. I haven't played it for some time. Occassionally over the years, but started a little more lately. NAD Pre amp and Amp . Getting hum from the turntable as soon as i select the phono mode on the preamp. Turntable is humming whether on or off ? I noticed that the Preamp has a phono ground. I reconnected it to a new electrical outlet box by groundi g it to the screw on the outlet box. NG still humming. Any idea? Could it be from the Preamp? BTW, my stereo plays CDs beautifully.

Will ground loop isolator work.?

Very helpful, sir; I'll do some more investigating. I do have a question; I have a turntable who's built-in RCA cables can"t quite reach where I have/rant the receiver/ground, so...I purchased "adaptor connectors" & added wire so that I could properly ground the turntable. I am aware the adaptor cables could cause *some* signal loss("signal" sounds great, though), but...why the "buzz"? Thoughts? In advance; Thank You!

@jackwezesa1081

Жыл бұрын

You probably have a ground loop that’s causing the 120 hertz buzzing .

I just fixed my terrible hum the other day. After trying many different things without satisfying results, boom, an idea crossed my mind. I had a pretty little IKEA lamp above my tt on a shelf. I turned it off and voila. ALL THIS TIME!! Hope I can help someone! I replaced it with a newer model, and there is no more hum.

hi paul!!!i used to work for hal cole at ncar.. is that where we met? or through john pelillo and virgil rodi of fourth stage recording under the rocky mt records and tapes building on 14th and pearl.... love the info!!! thank you!

The buzz is coming from inside my Denon, not external. It doesnt affect playback but i turn off my monster clean power surge protector after each session.

My tip is if you have any piece of equipment with a transformer keep it well away from your turntable.

Would a tv cause it to hum?

I have an Audio-Technica AT-LP120XBT-USB turntable connected to a soundbar system (which includes a subwoofer) by Bluetooth. I have no receiver and/or pre-amp. Just the turntable and Bluetooth soundbar system. If I turn the volume up on the soundbar above about 60% I begin getting a very bad humming sound. If I turn the subwoofer off it stops. I've tried placing the subwoofer on a foam pad to isolate vibrations thru the floor and that didn't help. I move the subwoofer as far away from the turntable as possible (approx. 20') and that didn't help. If I turn the subwoofer off while playing a record the humming stops. I checked the turntable cartridge and it seems fine. Listening to the TV through the soundbar produces no hum. Just the turntable. I've read that this could be a grounding issue (ground loop) and the fix is to ground it to your receiver or pre-amp but I am using neither. Also, the turntable and the soundbar are around 10' apart from one another. Can you give me any suggestions on how to fix this issue? It's very annoying.

Thanks for the info here. Question: Is it ok to place the TT on top of the power amp? I noticed that when I did this, I no longer hear the hum. My TT has a built-in pre amp but w/o ground connection. Thanks.

@octaverecordsanddsdstudios1285

2 жыл бұрын

It's ok to do whatever works though that's the last place I would have thought it would work.

Hi Paul, I am using a musical fedility amplifer A100 50W per channel. I have ground it to the amp. After playing the record for awhile, it start to hum. The solution to it is, I tab the amplifier turning nob. ( the circle round selection nob where you turn the nob to select CD, Phono etc). That is the one that i just tab it and the hum is gone. And 3 mins later, the hum came back again. Is that my Amp issue? For information, my speaker is a MS10 8 ohms speaker, is that causing the problem that harm my amp? Some people say i should use a 4 ohms speaker... thanks in advance.

The transformer in mine is buzzing at 120hz, can I just take it out and put it on the side?

Hi, Mr. McGowan. I Pray you can answer this: Can a phono cartridge feedback like a microphone thru the speakers and generate a low frequency flutter in the speakers that becomes dangerous as the volume is raised WITHOUT the record being played- tonearm at rest. Does this with different mm cartridges. No flutter with cartridge removed. Technics SL-1300, everything grounded from tonearm to receiver (Fisher 270- LOVE it's sound 2x50rms). FOS double shielded phono cables stopped any HUM I had previously. So is this possible? Low frequency microphonic feedback from the mm cartridges? ( Empire, Shure, Audio Technica). Thank you for ANY light you can shed on this- I know your a busy man, but no one has yet figured out the problem!