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Guitar amp output problem - Audio & Video Receivers

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  • Graeme Ross
    Graeme Ross May 11, 2010

    Hi, can help you, but need a little more info. Make and model and the problem you have will help.



    regards

    robotek

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  • Master
  • 1,512 Answers

How you going with the amp problem mate?

Posted on Jun 29, 2008

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1 Answer

Can I connect guitar to my Harmon Kardon receiver


Sorry. They are not compatible. The headphone jack is an output but you need an input for a guitar or bass. You will certainly damage the HK if you continue. There are no compatable inputs on the HK. The inputs are meant to be used with a 300mv output device, such as a CD or DVD.

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Hi , is it possible to add an extra 2 speakers to my hifi even though there are only enough terminals to hold the 2 that was with it ???? also the run of cable nedded for the added 2 speakers will be...


Hello,

Yes you can add two additional speakers, by adding a splitter off each terminal, which will take each terminal hole to two. However there is a couple problems you might discover. Power output will weaken because each channel is designed for so much amp output. So, by adding two additional speakers off those channels demands more power. Now, if your not going to crank them high and have a block party you will be ok. You can get the splitter that goes in to each port and splits and places like Guitar center, maybe radio shack, best buy, and even check walmart.They make also little devices that are a little unit that actually is separate, that hook up like this. Two small coax lines about 6 inches long come out your receiver and plug into this little splitter that has four ports, then you can run all four of your lines to the four speakers, and this device has panning and some other little features to make one speaker louder than the other like a fader. I hope this helps. Again Guitar center is best to check first.

THANK YOU, MIKE

Sep 10, 2011 | Audio & Video Receivers

1 Answer

How can I use my Marantz 4070, Quadro Integrated Amplifier as an amp for guitar, microfons and so on?


you need to buy a small mixer like the 4 channel beringer (about 90 bucks) you would plug its output into the inpur of your Marantz and will then be using it as a power amp. It should work great and the little berringer even has phantom power I believe.

Mar 19, 2011 | Audio & Video Receivers

1 Answer

I want to connect a guitar and mini amp so i can use the multi-fx processor. can you help?


Connect the guitar out to the FX input and connect the output jack of the FX to the Amp input.You will need two guitar cables for that.bobhifi_8.jpg

Mar 11, 2011 | Audio & Video Receivers

1 Answer

Hi, i just bought a gnx-3 guitar processor and it hums loudly.


Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} Sounds like a bad cable or pickup. Set the volume to a level that you can tolerate. You may want to turn off the amp between each of these steps. Unplug the cable from the amp; if the hum does not go away you have problems with the amp. If it does then plug the cable into the amp and short the end that plugs into the instrument. If the hum goes away it is the pick system in the instrument, if not you have a bad cable.
Good Luck
Gilshultz

Mar 01, 2010 | Audio & Video Receivers

1 Answer

Schematic for guitar amplifier


You didn't mention the make and model of the guitar amp, so I'll leave a link for several amps:

http://www.prowessamplifiers.com/schematics/

Enjoy!

Nov 25, 2008 | Audio & Video Receivers

1 Answer

Guitar amplifier cracks when turning off


So when you hit the power switch to turn it off you get a crackling sound? This is fairly common with many guitar amps as they don't have a relay which cuts the speaker output when the switch is turned off. What you are hearing is the capacitors draining down. If all else works ok with the amp then there's nothing to worry about.

Oct 06, 2008 | Audio & Video Receivers

1 Answer

MY FENDER GUITAR AMPLIFIER IS MAKING A HUMMING BUZZING NOISE


Not sure yet, but before considering a fault with the amp, does it only make this humming noise when not plugged into the guitar? I am thinking that the cable might be faulty.

If it while the cable is plugged in the guitar, does the humming disappear when you turn the volume control(s) down on the guitar? I am thinking that one or pickups may be faulty.

Sep 14, 2008 | Audio & Video Receivers

3 Answers

1974 FENDER TWIN REVERB HAS NRE TUBES NEW FILTER CAPS AND WAS REPAIRED BY RETIRED AUTHORIZED FENDER TECH. PROBLEM AMP HAS VETY LOW OUTPUT UNTIL YOU CRANK IT TO 8-10 THEN IT SOUNDS HORRIBLE DISTORTED AND...


This sounds like a power supply problem. The high voltage for the tubes is not right. Either you are missing an amplification stage because this or one of the coupling caps is faulty. I'd have to see the unit itself to give you any more details.

Dan

Jul 22, 2008 | Audio & Video Receivers

1 Answer

Hi i use a peavey 6505 Amp head and when i run a seymour duncan pickup booster through the effects loop it blows the amp (possibly the pre-amp fuses) i want to get a volume boost in a distorted setting...


Hi bmwz43

Odd that you keep blowing the head... and with 5 12axl preamp tubes even more surprised that you cannot get enough gain... :) Get the correct pedal for the 6505 and change yo levels that way. Hard to beat classic tube amp for tone:)

Check the the amp has the correct impedance setting for the quaddy you are using.

One more thing, what sort of cable do you have connecting the amp to the speaker box. If you use a cheapo guitar jumper lead arrangement, expect that to give you trouble AND **** tone. The 6505 has 120watts of cranked up tube output. Tube output stages need a solid at least 18 gauge cable and quality connector jacks, like Switchcraft. They can blow fuses if you don't use a decent speaker connector lead.

Get back to me here if it does it again, and check to see exactly which fuse you are replacing. It can help sort out the problem.

regards
Graeme

Apr 27, 2008 | Audio & Video Receivers

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