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Understanding the Purpose of AUX Input in Electrode Devices: A Beginner's Guide

Dj_Daruss 358775 23
Best answers

What is the AUX input used for?

The AUX input is for connecting an external audio source, such as a CD player, tuner, computer, phone, or other player, to the device [#2352700] [#2355617] It is a normal audio input, usually stereo, often brought out as two RCA connectors or a mini-jack [#2352959] In practice, you feed a line-level signal into AUX so the device can amplify and play it through its speakers [#2355617] It is not a speaker output and not a headphone port [#15738767] [#15482918] A guitar can be connected only indirectly in most cases, because its signal is too weak and would need a small preamp first [#3265749]
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  • #1 2352685
    Dj_Daruss
    Level 11  
    Hello, I'm new to the electrode. I wanted to know what the aux input is for :?:

    Please help ;)
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  • #2 2352700
    marexsc
    Level 15  
    You can connect any external audio source, in short, equipment such as: CD, TUNER, PC .......
  • #3 2352959
    thorgal6
    Level 12  
    Input connected via the so-called czincze (I don't know how it is spelled) usually two for the left and right channel. It is simply a connection of an external audio device, e.g. a sound from a computer via the AUX input in the tower.
  • #4 2353146
    marexsc
    Level 15  
    heheh buddy Popin, after all, the AUX input is clearly written
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  • #5 2353210
    igabriel
    Level 20  
    AUX generally means universal, whether it is an input or an output
  • #6 2354799
    marexsc
    Level 15  
    Gentlemen, what are you making a problem with, after all, it is clearly and distinctly like a cow "entrance" is it not enough? with "output" when it comes to spelling, of course, and that there was no unfortunate "J" hence so many problems? After all, this stupid AUX input and the topic is going to go on forever because someone has not read the topic thoroughly?
  • #7 2355617
    Hefajstos
    Level 35  
    The input serves as the name itself to input some signal. Aux is Auxliary, or "external". So the name suggests, for example, connecting an additional source to the tower. Generally, in modern equipment all inputs except for phono have the same parameters.


    -
    best regards
    Hephi
  • #8 3264952
    Darg
    Level 11  
    Can an electric guitar be connected directly through this AUX input and will it play in the speakers?
  • #9 3265749
    foxik000000
    Level 29  
    Rather not, I guess it's about the auxiliary entrance in the tower ;) It means you can connect, but firstly the signal will be only one loudspeaker, secondly the signal from the guitar is very little, so it will be very quiet, you would have to add a small preamplifier for e.g. TL072 consisting only of a few elements ;)
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  • #10 3266643
    zeberko
    Level 32  
    Mini towers auxiliary input is realized through a mini jecka, another thing through auxiliary input, the equipment tolerates a signal with greater CD / DVD / PC potential.
    The old DIN inputs for a tape recorder treated with a strong signal from a DVD, eg Manta, made the equipment sound quite unpleasant.
    And the whole quintessence of the problem was explained by a colleague Hephaestus, so nothing OUT from aux but only in IN (a sexist would compare them with a female individual ;) ) and even less no loudspeakers because only with the lady's buddies such a stain that could not be produced in infancy ;)
  • #11 3292427
    Michalangello
    Level 1  
    Hello. So if I connect two cables to the AUX input, thanks to which I should get 5.1 (optical) sound, then AUX will enable me? Is this the correct input for these cables?
  • #12 3293713
    zeberko
    Level 32  
    No, if we have one auxiliary input (one jack, and two RCA), we can only add a stereo signal to amplification, from which the equipment can (as it has a pro logick decoder) play spaces, but only with ProLogick.
    The optical cable can only feed an optic signal to an optical input.
    Some receivers have a complete set of analog inputs and thus can receive a full DD 5.1 signal via analog, the condition of the DVD player must have the same set of outputs.
  • #13 6031891
    michu_692
    Level 1  
    I have speakers in the package (creative t6060) and with the remote control I have such an input, would it be advisable to connect an amplifier to it
  • #14 6031957
    przemo-lukas
    VIP Meritorious for electroda.pl  
    Not.
  • #15 15478562
    marcinlski
    Level 1  
    I have a question. I want to buy an inexpensive receiver. And expand it little by little. As of today, I would like to connect it to a set of computer speakers (2 satellites and a sub.) There is an aux input in the sub speaker. what output must be on the receiver? just an aux output? that's what it's called
    best regards
  • #16 15482918
    DjMapet
    Level 43  
    Basically every receiver is equipped with a signal output. It can be labeled differently, but its description always includes the word OUTPUT, or OUT for short.
    It can be, for example: LINE OUT, TAPE OUT, AUDIO OUT, AUX OUT.

    Best regards.
  • #17 15486413
    KOCUREK1970
    Network and Internet specialist  
    marcinlski wrote:
    As of today, I would like to connect it to a set of computer speakers (2 satellites and a sub.) There is an aux input in the sub speaker

    Totally pointless - you want to connect active speakers to the receiver - what for? - the effect is the same as if it was not there at all.

    You asked the kind of question - spread the bread with butter or a knife ...

    Provide specific data, what you have, what you want to buy - we'll talk.
  • #18 15486883
    DjMapet
    Level 43  
    Maybe there are no passive speakers yet, or no money for them, so after buying the receiver and connecting it to a set of computer speakers, I just want to listen to the radio from it.

    Best regards.
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  • #20 15738767
    KOCUREK1970
    Network and Internet specialist  
    @ 5476
    And what's strange - the AUX input is not a headphone port.
    And how to do it so that you can use the headphones - buy a suitable tower with a headphone port.
  • #21 15739259
    5476
    Level 10  
    So it is not possible to connect something to this output, and then headphones?
  • #22 15739717
    DjMapet
    Level 43  
    Headphone amplifier, will solve your problem.


    Best regards.
  • #23 15740203
    KOCUREK1970
    Network and Internet specialist  
    DjMapet wrote:
    Headphone amplifier, will solve your problem.

    And what will it connect to in this invention?
    5476 wrote:
    connecting something to that output

    More precisely - it is an INPUT, not an output - there you can connect a phon, a player and listen to it on this invention.
    This is what I conclude from the photos from the auction - because it is not possible to find instructions for this (it is a supermarket from Germany).
  • #24 15742419
    DjMapet
    Level 43  
    It turns out that a colleague @ KOCUREK1970 he's right, because after his last post, I looked at a few similar products from this company and practically few of them are equipped with an AUX OUT output. basically all of them have an AUX input and some of them also have a headphone output.
    In that case, a headphone amplifier will not solve your problem.

    Best regards.
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Topic summary

✨ The AUX input in electrode devices serves as a universal connection point for external audio sources, allowing users to connect devices such as CD players, tuners, and computers. It typically utilizes RCA connectors for left and right audio channels. While the AUX input is primarily for inputting audio signals, it is not suitable for connecting electric guitars directly without additional amplification due to low signal levels. Users seeking to connect headphones to devices with only AUX inputs may require a headphone amplifier, as AUX inputs are not designed for headphone output. Additionally, the AUX input cannot support multi-channel audio setups like 5.1 surround sound without appropriate outputs from the source device.
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FAQ

TL;DR: A standard AUX input expects about 0.316 Vrms (-10 dBV) line-level audio [“Line level”, Wikipedia]; “Aux is Auxiliary, an external input,” explains user Hefajstos [Elektroda, 2355617] Use it to plug CD players, PCs, or phones into amplifiers. Why it matters: Knowing the limits keeps you from frying gear or getting silent playback.

Quick Facts

• Line-level spec: 0.316 Vrms, ‑10 dBV, stereo, unbalanced [“Line level”, Wikipedia]. • Input impedance: 10 k–47 k Ω typical, protects source devices [SoundOnSound, 2021]. • Common connectors: 2×RCA, 3.5 mm TRS, 6.3 mm TRS, or DIN [Elektroda, thorgal6, post #2352959] • RCA-to-3.5 mm cable costs ≈ US $5–10 [Amazon listing, 2023]. • Never feed speaker-level (>5 Vrms) into AUX; it can destroy op-amps [Audio-Phile, 2020].

What does “AUX” mean on my stereo or amplifier?

AUX is short for “Auxiliary.” It labels a universal, line-level stereo input for external sources [Elektroda, igabriel, post #2353210]

Which devices can I safely connect to an AUX input?

Any line-level source such as CD, DVD, computer, phone, tuner, or DAC works because their outputs match the 0.316 Vrms spec [Elektroda, marexsc, post #2352700]

Can I plug an electric guitar straight into AUX?

Yes, but the result is weak and mono; a guitar pickup delivers roughly 100–200 mV, far below line level, so you need a preamp or DI box for proper volume and tone [Elektroda, foxik000000, post #3265749]

Will an AUX jack give me true 5.1 surround sound?

No. A single AUX input carries only two analog channels. For discrete 5.1 you need six analog inputs or one SPDIF/HDMI digital input [Elektroda, zeberko, post #3293713]

Is AUX an input or an output?

On most consumer gear it is an input. Labels like “AUX OUT” exist on some receivers, but they are rare and clearly marked “OUT” [Elektroda, DjMapet, post #15482918]

How do I connect my PC’s sound card to the AUX input?

  1. Buy a 3.5 mm-to-2×RCA stereo cable. 2. Plug the 3.5 mm end into the PC’s line-out. 3. Connect the RCA plugs to the AUX L/R jacks; select AUX on the amp and set PC volume to 70 % for clean signal.

What happens if I accidentally feed speaker output into AUX?

Speaker outputs can exceed 10 Vrms. That overdrives line-level op-amps and may burn input resistors—an edge-case that often costs a full repair board [Audio-Phile, 2020].

Why won’t my Creative T6060 sub’s AUX accept an external amplifier?

The T6060 is an active speaker set. Feeding another amp’s output into its AUX could clip inputs or cause distortion; the forum recommends not doing it [Elektroda, przemo-lukas, post #6031957]

Can I route a phono turntable into AUX?

Only through a phono preamp. Magnetic cartridges output ~5 mV and need RIAA equalization; without it the sound is quiet and tinny [AudioTechnica, 2022].

Is AUX the same as LINE IN?

Functionally yes. Both are unbalanced stereo inputs at line level. Manufacturers often pick either label; circuitry inside is identical [Elektroda, Hefajstos, post #2355617]

Which cable should I use for a mini tower that has a single 3.5 mm AUX jack?

A 3.5 mm TRS-to-TRS cable connects phones or laptops; use a 3.5 mm-to-2×RCA adapter if your source has RCA outputs [Elektroda, zeberko, post #3266643]
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