Why is there a ground wire on turntable?

Asked By: Anca Rudlaff | Last Updated: 27th February, 2020
Category: home and garden home entertaining
5/5 (108 Views . 15 Votes)
A turntable suffering from a Ground Loop will produce a hum through your speakers. Because of this sensitivity, most turntable designs already arrive with a separate Ground wire attached principally to the tonearm, that can in turn either be attached to the amplifier or phono amplifier's ground screw.

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In respect to this, why do turntables have a ground wire?

It (a separate ground wire) is a method to help reduce ground loops and unwanted common mode currents in the audio signal path, phono cartridge to phono stage input. Remember that a signal does not just stop when it comes to a ground connection.

Beside above, where does ground wire go on turntable? In general, a single turntable ground wire should be attached to the ground post or a chassis screw and the turntable on the back side of the amplifier or the receiver as well.

Just so, is it necessary to ground a turntable?

Turntables that do not have a built-in preamp need grounding. Turntables that need grounding feature a cable that needs to be attached to your preamp (whether it's an external preamp, mixer, amplifier). Turntables that are not grounded will produce an obvious humming sound.

How do you extend the ground wire on a turntable?

You could use any electrically conductive wire, preferably one with an insulating outer sheath (even speaker wire). You'd strip both ends of the extension wire, connect one end (just bare wire) to the small spade on the ground cable, and connect the other end (just bare wire) to the grounding pin on the receiver.

33 Related Question Answers Found

How do you ground a turntable without a ground wire?

Re: How to ground a turntable that has no ground wire
Then attach one end of the wire to the chassis of the amplifier, NOT to a speaker terminal, but rather to a shiny screw in the bottom of amp. Then take the other end of wire and attach it to a shiny screw in the metal chassis of the turntable.

How do you ground a turntable to a preamp?

For this system, a separate outboard phono preamp must be connected between the turntable and the receiver. Start by plugging your turntable's audio cable into the phono preamp's input. Be sure to connect your turntable's ground wire (if it has one) to the grounding post on the phono preamp.

Why are ground loops bad?

Ground loops are a major cause of noise, hum, and interference in audio, video, and computer systems. Wiring practices that protect against ground loops include ensuring that all vulnerable signal circuits are referenced to one point as ground.

Can you use speaker wire to ground turntable?

The ground wire does not carry audio signal. Any insulated wire will do. It doesn't have to carry an audio signal.

Do I need to ground my amplifier?


Amplifiers are a source of a lot of power, so it is crucial they are grounded to prevent any problems. The ground for the amplifier should be directed to a bare metal area of the car body, within eighteen inches of the amp's location. Your objective is to try to ground to the main chassis or the sub frame.

How do you ground a record player?

Here are the steps and some tips on how to ground a record player:
  1. Step 1: Cut The Power.
  2. Step 2: Locate The Grounding Wire.
  3. Step 3: Find The Grounding Terminal.
  4. Step 4: Make Sure There's Enough Wire.
  5. Step 5: Connect.
  6. Step 6: Turn the power on, and your system is ready.

How do you ground a receiver?

Cut ground wire to adequate length. Take the roll of 16 gauge wire, knot one end of it loosely at the location of the receiver, and walk it to the area where it will be attached to the water pipe. Be sure to allow for extra length needed for running the wire along walls or behind furniture.

Do I need a preamp if my receiver has a phono input?

If your turntable has a LINE output, it has a built-in preamp. And if your amplifier/receiver has a PHONO input it also has a built-in preamp. If you are using powered speakers they might have a built-in phono preamp as well.

What is GND amplifier?

GND is left audio ground. LIN is left audio positive. GND is right audio ground.

How do I stop my record player from humming?


Answer:
  1. Turn down volume control.
  2. There must be a connection from the metal parts of the turntable to the chassis of the preamp/amplifier; from there to ground on a water pipe, a grounded electric outlet box, or a radiator.
  3. Disconnect the phonograph plugs from the preamp or amplifier.

Where do you put the earth wire?

The earth wire connects the appliance body to a metal rod/plate buried under the ground. A lot of mains powered appliances need three wires to work safely. Only two of the wires are used when the appliance works properly. These are the live (brown) and the neutral (blue) wires.

Do RCA cables need to be grounded?

No, the RCAs do not need to be grounded. Like seth said Its the Remote Turn On Wire.

How do you hook up old turntable to speakers?

To use a vintage turntable with these newer units or to play through a computer, powered speakers or headphones, the turntable signal must pass through an external phono preamp. You'll then plug the output from the phono preamp into line-level inputs on your gear (these may be marked Aux, Tape, Line, Video, CD, etc).

How do I connect my turntable to my speakers?

Connect the RCA (red and white) plugs from the turntable cable to the included RCA (female) to 3.5 mm (1/8″) mini-plug (male) adapter cable, making sure to match red plug to red plug and white to white. Then connect the adapter cable's 3.5 mm mini-plug to the powered speakers' Line Level* input.

Do you need a receiver to play a turntable?


You need a receiver to connect multiple audio and video components to a speaker. If you used a receiver, you wouldn't have to connect and disconnect your speakers to any of the different sources you're using. It can connect your TV, your CD player, your turntable, or even your mobile phone to your speakers.

What does a turntable preamp do?

What is a phono preamp? A phono preamplifier, also known as a phono stage, is an audio component that amplifies the signal from your turntable to a level that allows you to connect it to your sound system the same way you would with any other audio source.

How do you use an old record player?

How to Use a Record Player
  1. Step 1: Set Up. Place your record player in a secure location where it will be protected from the elements or possible falls.
  2. Step 2: Turn It On.
  3. Step 3: Lift the Dust Cover.
  4. Step 4: Remove the Record.
  5. Step 5: Insert the Record.
  6. Step 6: Move the Needle.
  7. Step 7: Drop the Needle.
  8. Step 8: Enjoy Your Music!