These are inexpensive and very common, typically used for connecting devices with a headphone jack to stereos with two RCA jacks for left (white) and right (red) signal. the headphone jack on an iPod), you’ll also need a 3.5mm Mini Plug to RCA stereo cable. Note: If the input on your audio device is a stereo mini-plug jack (i.e. Bottom line, if your gear doesn’t have an input marked “PHONO,” you need a phono preamp. You would also use a phono preamp if you wanted to play your turntable through a computer, powered speakers or headphones. 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). To use a vintage turntable with these newer units the turntable signal must pass through an external phono preamp. (In the last few years some manufaturers - Yamaha, to name one - have resumed putting phono inputs in their gear). Most new audio gear - soundbars, mini-systems, Bluetooth speakers, home theatre receivers, etc. Quite a few newer turntables have built-in phono preamps that can be switched on or off (see 2nd paragraph above - check the manual). Phono preamps were built-in to older receivers and amps (see first paragraph above). This additional amplification is called a phono preamp (a.k.a. It requires additional amplification and some EQ to bring it up to a proper signal. Turntables are different - the output from the cartridge on a vintage turntable is MUCH lower. Most audio sources you connect to a stereo or home theater receiver (DVD/CD players, iPhones, Bluetooth receivers, etc.) are called line level sources - they have electronically amplified signals. (Note that I’m NOT going to discuss newer turntables that have USB outputs or Bluetooth connectivity - those units will have internal preamps, so just use the instructions included with those.) If you DON’T have a phono input on your audio system, or if you’re trying to connect your turntable to powered speakers, a sound bar, headphones or a sound input on your computer, the rest of this document is for you. If you plug one of these into a Phono input on a receiver and it’s REALLY LOUD (and probably distorted), this is because the switch is in the wrong position and the signal is going through a phono preamp twice. Important note: many of the more recent all-plastic turntables (Audio Technicas, some of the black Sonys, etc) have a built in phono preamp with an On/Off (or Phono/Line) switch under the platter. Just be sure not to put the turntable too close to your speakers! (More on that below, too.) Plug in the turntable’s power cord, set the function on the stereo to “phono,” and you’re ready to go. Attach it to a post or a screw (usually labeled “GROUND”) on your stereo (more on that below). Most likely (but not always) there’s also a skinny single wire coming from the turntable. First things first – the simple setup: If you’re hooking your vintage turntable to a stereo receiver or amplifier that has jacks on the back marked “PHONO,” it’s easy: Plug the matching cables coming from your turntable in the phono jacks.
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