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I'm getting a hum and I've tried different gear to see what happens and it's there most of the time.
"A lie is half-way around the world before the truth can get its boots on."
-Mark Twain
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No cartridge hums!
A cartridge is a passive device and doesn't make any noise. However, all cartridges have coils of wire that can pick up alternating magnetic fields and thereby produce hum. They will also respond to stylus motion, so if your turntable is vibrating at a low frequency, the cartridge might hum when in contact with the record.
My guess is that you have an alternating magnetic field from the power supply of an active component located too close to your turntable/cartridge and it is inducing hum into your cartridge. Another reason might be a grounding problem or a ground loop.
Best regards,
John Elison
Some cartridges hum on Rega's, not just Grado's.
Usually it's a grounding issue with the Rega as the motor is not grounded properly.
Attach a ground wire to the motor (you may have to solder it or find a way to clamp it)
and run it to the bearing (clamp it or carefully solder it) and then to the tonearm base, and then to the ground lug on the SP-17. That usually does the trick.
has known issues regarding the TTPSU ground wiring. I`ve encountered this issue before with another Rega model; I ran a wire from TTPSU (chassis) to pre-amp ground lug and no more hum, no matter which cart was used.
A relatively easy fix, it`s worth a try ...
I used a 2M blue for nearly 2 years with nary a problem with hum. Someone earlier suggested checking cables, etc. I'd second that advice.
....
Cheers
Welly
He hoped and prayed that there wasn't an afterlife. Then he realized there was a contradiction involved here and merely hoped that there wasn't an afterlife.
- Douglas Adams
:-)
None of my Blue, Bronze, or Blacks have hummed in my system.
See ya. Dave
Check your leads, tonearm cable, grounding cable, and connectors.
MOVING magnets tend to hum ....moving coils are dead silent. Make sure your table is grounded...use interconnects with double shielding...enjoy.
"MOVING magnets tend to hum ....moving coils are dead silent."
This is the exact opposite of my experience.
If your moving magnet cartridges don't hum consider yourself fortunate. The hum is usually very low, yet, enough to mask the delicacy that moving coils usually find.
My 2M Bronze is dead silent
Alan
.
My Red is impeccable
.
Jim
http://jimtranr.com
My Blue does not.
got both a red and a blue
MC20 and Red
-Wendell
My Blue/Red/Black didn't either.
Opus 33 1/3
check your ground wire
Happy Listening
Rega RP6.
"A lie is half-way around the world before the truth can get its boots on."
-Mark Twain
Kidding but only a little.
I had a Green for a while and it hummed like a mofo. I'm trying to recall which table I had it mounted on. Pretty sure it was the Technics.
My two Grado wood bodies have never been a problem in my decks - Sonata and Statement.
Thankful because they sound so good.
Sim
I've also had several different Grados over the years and never had a hum problem. Frankly, I think the idea that Grados are hum prone are largely exaggerated.
Especially on the inner grooves. I solved it by placing a mu metal shield under the platter on the deck chassis. Don't use either component any more.
Mike
Grados are unshielded. Have been from day one. This usually is no issue unless the TT motor proximity or ferrous platter get involved.
Opus 33 1/3
per Manfred's post Thorens platters are not ferrous.... explains why the Grado's work so well for me.
Sim
with no problems and I believe these have ferrous platters... I'll have to get a magnet and check. My Grado's both track well. have zero hum, and sound incredible.
Sim
Hummmmmmmmmmmmmmmmmmmmmmmmm.
Opus 33 1/3
Sim: Your Thorens platters are cast Zamak (Zink, Aluminium, Magnesium & Kupfer) - i.e. no iron included in that alloy.
Greetings from Munich!
Manfred / lini
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