p.robustini
Active Member
Thorens TD-165/TP-11 + Grado Prestige Gold:
NO HUM.
NO HUM.
Grado Hum Database
- Thread starter Sansui Louie
- Start date
Ottomaddox
New Member
Mission 775 LC Grado G1+
Pretty decent hum at edge of record and really bad hum the closer it gets to center.
Pretty decent hum at edge of record and really bad hum the closer it gets to center.
david winter
Classical music lover.
They are all grounded, but the chassis and tonearm are connected to the right channel ground instead of a separate ground wire.
Remember also the days when turntables used a 5-pin DIN plug: chassis ground was always common to both channels grounds.
david winter
Classical music lover.
I'd also like to mention (if not already done by someone else) that hum is also easily caught by cheap wires. I happened to buy some cheap RCA-RCA wires to replace defect ones on old turntables. I started using Vivanco without trouble. I then bought several ones made by another cheap brand and I started hearing some significant hum.
I then rewired the turntable using another audio cable (still cheap but much more robust and with real threaded shield). Still had some hum and thought my amp was concerned. I gave the turntable back to my friend who told me "works like a charm, dead silent".
I then realized that I was using a small RCA box to avoid connecting turntables to the rear of the amp. The wire between the box and the amp is so bad that it catches EMI from the amp itself (or abother device close to it).
I never tested the cheaper RCA-RCA cables again. I prefer the thicker audio wire with threaded shielding. Seems much better inquality, and who knows what people think when seeing what you're using even if it works...
I then rewired the turntable using another audio cable (still cheap but much more robust and with real threaded shield). Still had some hum and thought my amp was concerned. I gave the turntable back to my friend who told me "works like a charm, dead silent".
I then realized that I was using a small RCA box to avoid connecting turntables to the rear of the amp. The wire between the box and the amp is so bad that it catches EMI from the amp itself (or abother device close to it).
I never tested the cheaper RCA-RCA cables again. I prefer the thicker audio wire with threaded shielding. Seems much better inquality, and who knows what people think when seeing what you're using even if it works...
marcmorin
RIP 1953-2020
Should be a DC motor in that table. DC produces no 60hz EMF. The power supply to the motor should be shielded. ie, you should get no hum from the table.
marcmorin
RIP 1953-2020
Should be, however it will be slight and not heard during quiet passages or between tracks. ie, below the vinyl sound floor.
pmdclassics
Active Member
I found a hum can come from a nearby plasma TV. Also never use your amp/receiver as an outlet for other gear.
vintagetuber
Spin to Win
Technics sl-d3. No hum.
Grado Gold in a Technics SL-1311, no hum at all just beautiful music! The SL-1311 can be considered the same as the SL-1600 for all intents and purposes.
Lorenzo47
Super Member
I've put my ear on the front of my speakers and detect no hum. I rewired the arm myself and it's grounded the same as the original AR arm - with the exception that the wiring terminates at RCA females with a separate ground wire to my phono preamp.
But, maybe I just can't hear it. But, if I can't hear then it doesn't exist for me.
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marcmorin
RIP 1953-2020
Doesn't matter the model number on a Grado, unless it's a B series cart or earlier. Have you found it in the "yes" data base for that particular table?