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Forums / Computers / Electronics / Games

Increasing headphone jack signal level

25 durable postsStarted 2007-09-07Latest 2007-11-10
#45800Post 1 of 25

is it possible? want it to be line out level

#912844Post 2 of 25

Re: Increasing headphone jack signal level

i have a feeling i'm going to just be left to buying an external sound card... this one looks nice.

[url]http://www.newegg.com/Product/Product.aspx?Item=N82E16829270002[/url]

#912873Post 3 of 25

Re: Increasing headphone jack signal level

erm i dont understand quite what ur wanting to do?

and soundcard is only 16 bit, old school :lol:

#912899Post 4 of 25

Re: Increasing headphone jack signal level

eh? Headphone and line-out are pretty much the same level.

#912920Post 5 of 25

Re: Increasing headphone jack signal level

they are spendy ... these are some of the best.

[url]http://www.headphone.com/products/headphone-amps/[/url]

#912988Post 6 of 25

Re: Increasing headphone jack signal level

I ran RCAs from my office, through the walls, through the ceiling, then the walls, and to my living room. I have my computer plugged into my amp in my home stereo via the 3.5mm headphone plug.

I also ran 4 speaker wires from the living room through the ceiling to outside on my new deck. this stuff works great.

the problem is the headphone levels are way low, and when I turn up my amp to full volume the speakers (inside or outside) can't get louder than below-normal listening volume. I want to amplify the level of this signal so I can pump the music from my computer through my living room stereo to my living room or outside speakers.

#913004Post 7 of 25

Re: Increasing headphone jack signal level

I had the same problem with my onboard sound card just not getting loud enough.

Never regretted going with an X-fi but I did waste the extra money going with the extreme gamer instead of the extreme audio.

#913063Post 8 of 25

Re: Increasing headphone jack signal level

Hi!

Maybe if you wont plug your computer to the amp, by the headphone jack, it would be louder. Im using an RCA-jack converter to plug my Pc into the amp. No problems with the volume level. By the way, how long is the cable You're using? Becouse there can be a sound level fall (resitance of the cable) if its too long! If you buy thicker cables (lower resistance) it could also solve the problem...

#913174Post 9 of 25

Re: Increasing headphone jack signal level

And don't forget to NOT run your audio cables near power cables. ;)

#913212Post 10 of 25

Re: Increasing headphone jack signal level

[quote=beanzncheez;525718]And don't forget to NOT run your audio cables near power cables. ;)[/quote]

True! It will get a lot of noise!

#913358Post 11 of 25

Re: Increasing headphone jack signal level

funny you mention that... they aren't near any power cables but I do have a lot of noise. I used 8-guage wire through the ceiling for the RCAs. i have no clue what to do about it... the speakers sounds fucking great when playing a CD/DVD/stereo on the amp but when tuning to the computer input via the RCAs (run parallel with them most of the way in the ceiling) I have a lot of noise. do they make shielded wire? the 8-guages that I used were cut out of some old PA equipment a while back ago but I know it's quality stuff.

[img]http://www.picklemonkey.net/photos/house/deck/DSC03892.JPG[/img] [img]http://www.picklemonkey.net/photos/house/deck/DSC03894.JPG[/img] [img]http://www.picklemonkey.net/photos/house/deck/DSC03898.JPG[/img] [img]http://www.picklemonkey.net/photos/house/deck/DSC03899.JPG[/img]

#913415Post 12 of 25

Re: Increasing headphone jack signal level

Ohh my, i think its certainly becouse of the length of the cables, as i watch your pictures...I don't really know if there are shielded cables, I think there are... Im using very thick cables in my car, to connect the car stereo with the amp in the trunk. They're about 4-5mmthick(each wire!!).

I was askin my father (Im an electrical engineer) who was a Dj long ago(1978-1986) :-D so he had problems with noise when he used his stuff.

So here are some solutions that we made together: Try to listen to the Pc's outcoming signal if its noisy(so dont plug it into the amp, just listen to it with headphones. Don't play any kind of music, just push the volume to the max on the pc, than listen into your headphones if you can hear any noise.If you do, than your Pc's soundcard is very noisy by default, try to get a better one.

Try to use thicker cables if possible. Becouse they can get a lot of noise from the environment. Thats becouse the outcoming sound level is way lover than the sound level what you put trough the speaker wires. And when noise is added to a low signal and than you amplify the low signal with lot noise, the noise is getting amplyfied too (SNR - Signal to Noise Ratio)...And thats becouse the CD/DVD/Stereo sound good, becouse the noise is very low there...And the speaker cables cant add much noise, becouse there's the amplified signal.(I hope you can understand me, im from Hungary so sorry if i made mistakes, plz ask if you can't understand anything, ill try to explain)

I think ill wait till you try solution 1 than we'll figure out what the problem is!

Another thing!:

you wrote: "I want to amplify the level of this signal so I can pump the music from my computer through my living room stereo to my living room or outside speakers."

It will be very noisy(The thing that i mentioned above "signal to noise ratio") so this is not the solution you should make!

#913416Post 13 of 25

Re: Increasing headphone jack signal level

My car's RCA cable, and a normal RCA cable:

[IMG]http://users.atw.hu/greenpingvin/img_%20001.jpg[/IMG]

[IMG]http://users.atw.hu/greenpingvin/img_%20002.jpg[/IMG]

#913456Post 14 of 25

Re: Increasing headphone jack signal level

Get a pre-amp going and yes, there are shielded cables.

#913667Post 15 of 25

Re: Increasing headphone jack signal level

[quote=beanzncheez;526044]Get a pre-amp going and yes, there are shielded cables.[/quote]

But if he'll use a preamp it will add a lot of noise, thats what i tried to explain...

#913707Post 16 of 25

Re: Increasing headphone jack signal level

I thought he wanted more noise?

#918661Post 17 of 25

Re: Increasing headphone jack signal level

Not that way, lol :)

#918827Post 18 of 25

Re: Increasing headphone jack signal level

RCAs are grounded, right? when I soldered the RCAs to the wall plates it was one straight wire, no ground. I have a feeling I'll just end up trying to find a wall plate that's not solder-type but instead has female RCAs on each side of the plate, and running shielded, grounded RCAs through the roof. any comments? would love to fix without running any more wires through the ceiling, but am not sure I can ground the 8ga wire that I already ran?

#919585Post 19 of 25

Re: Increasing headphone jack signal level

They are grounded, but i just don't know how can you use them without it. I mean if you use an rca there are 2 cables lets say red and black, these are the most common i think. So red plug has two wires inside a ground and another one, and same for the black one, so thats four wires, and they don't even work without any of these are not soldered. So if you have 8gauges than you have 2 RCA cables. Is that right? By the way, did you tried the solution that i mentioned before? And i also think the problem is that they aren't shielded. its a bit home-made solution, but you can try to put some aluminium sheet (i dont know the exact name, we usually use it to put food in it its like a tissue or something, really thin) On the cables they can shield really nice, and i think they use this way to shiled cables, but they are inside...Hope you understand :-)

#919725Post 20 of 25

Re: Increasing headphone jack signal level

[URL]http://www.aloaudio.com/Links.html[/URL]

[URL]http://www.redwineaudio.com/iMod.html[/URL]

these two sites should help you out quite a bit. They are mostly for ipods and audiophiles but there are links and whatnot that can help you with your problem.

#919726Post 21 of 25

Re: Increasing headphone jack signal level

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Power 10% @ 15W 4ohm 10% @ 10W 8ohm Power Efficiency 81% @ 15W, 4ohm, 90% @ 10W, 8ohm Input Audio IN RCA (Left/Right) x 1 Power socket (5.5mm/2.1mm) x 1 Output Speaker OUT (Left) x 1 pair (+ / -) Speaker OUT (Right) x 1 pair (+ / -)
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Dimensions (W)76mm x (H)46mm x (D)114mm [case only]/150mm[incl. sockets & knob] Weight 500g Spec. (AC Adaptor) AC Input Universal AC 100V-240V / 50~60Hz DC Output DC 12V / 3A (36W) Ripple & Noise <=50mV Over-load Protection 105%-150% Over-voltage Protection 115%-150% Dimensions (L)117mm x (W)48mm x (H)33mm Weight 300g Accessories 3 Pins Power Cord x1 US Standard plug (2 flat and 1 round) with your own power cord for different regions) User Guide x1 Manufacturers Warranty Card x1

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#930981Post 22 of 25

Re: Increasing headphone jack signal level

ok, so I have new shielded cables which have absolutely zero noise over the 50 feet that they span. I plug it in to my mp3 player with no noise, or my laptop (not docked) and zero noise. just perfect sound quality.

problem is, when I plug it in to my laptop while it's docked, or plug it in to my desktop, i still get some noise... definitly not as bad as it was when I had the unshielded cables, but it seems the AC power is fucking with the signal. went out and bought a new sound card and put it in the PC as a test, but the same issue on that card too. have read stuff on the internet about "poorly-designed" power supplies which cause noise... am wondering if anybody else has heard of this, and if anybody knows of any proven-to-work suggestions? what can I do to prevent the AC noise from traveling to the speakers, besides buying some new futuristic power supply?

#930996Post 23 of 25

Re: Increasing headphone jack signal level

depending on your sound card setup/drivers, does your Windows Volume options have any PC (internal) sound inputs?

I had noise like that forever (when I'd jack my volume up in my headphones and nothing was playing you could still hear some static); drove me nuts and I always thought it was the soundcard...found this option called "PC Beep" when I was muting and playing with everything and that was the culprit (turned up too loud).

#931058Post 24 of 25

Re: Increasing headphone jack signal level

it doesn't happen on the laptop when it's unplugged... couldn't be a sound card issue. also note in the post I said I went out and bought a brand new sound card and got the same noise on it once I installed the drivers

#936650Post 25 of 25

Re: Increasing headphone jack signal level

it's a tough one.

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