The247enigma guide to installing home audio amplifiers

grr_price-attack
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Hi All
This is a quick step by step guide for anybody needing help, please read the disclaimer before using. If installing an amplifier; this will help get you a basic setup with speakers and an input device.


PLEASE NOTE: this information is not an industry accepted method; these are my own personal fixes that i have determined through many years of handling Hi-Fi items. With the exception of any readers who have bought from my ebay shop Priceattackstorerun by the247enigma, bear in mind these hints may invalidate any warranties you may hold, but if they should I would recommend attaining a refund from your seller and shop elsewhere!


First of all make sure your connected to the mains (but leave switched off) and not a UPS (sometimes the UPS does not have the wattage to power an amplifier effectively).


Now connect an input device, the preferred type is a CD player or other digital item (tape players, for want of a better term are 'analog', and record players are another type again, do not mix inputs for the wrong devices as it will distort the sound or it can cause damage either to the amp, speakers or the device being used)

Now either using a CD player/MD or iPod etc connect to CD (it will work for any of these and is relatively uncomplicated for the amp to generate sound from), if your amplifier does not have a CD input because it is an older amp use 'AUX', should it be so old as not have aux use tape and use a tape player.


Now connect your speakers, depending on what type of amp you have connect 2 speakers to speaker set labelled either 'A','1' ,'main' or 'front'.


Ensuring you have no loose speaker strands anywhere so that there is no chance of a short circuit, power up your amp from the mains and switch on, if all goes well your amplifier is now working and ready to go, if not read below


Problem; amp will not switch on: First ensure your power socket is working/switched on and that your cable is working, if it is a removable cable try another from somewhere in the house, if it is not the cable then check the plug. If the amplifier is still dead contact your seller and make them aware of the problem.


Problem; No Sound: Try these points in the order they are written and keep your amp volume set all the time at approx ¼ max volume.


  • Make sure the speaker terminals you are using is enabled, most amps have a switch/button or, if digital/computerised, a setting in the menu to switch the speaker terminals on or off.

  • Make sure it is not muted or that you have something called ‘tape Mon’ or ‘Monitor’ is not enabled, as this will bypass all other inputs except for the tape deck.

  • On some amplifiers there is a phono/RCA coupler at the back of the amp, this is usually called Adpt, adaptor or EXT, IN/OUT. This is a feature for Graphic equalizers and in most cases not required, if you have this on your amplifier and don’t wish to use it, simply connect a phono/RCA type lead across the IN and OUT sockets of the same name and it will bypass the feature and restore sound.

  • On surround sound amplifiers try various surround sound settings, sometimes one or more will disable some speaker outputs

  • On an amplifier with 5.1 or greater speaker setups, try using the “multi channel in” input, switch your amp to this function (sometimes under the ‘DVD’ input) and try your CD player through the ‘front’ speakers
    On some amps there is a setting to change the sound type for the input, IE phono/RCA/analog to digital/optical etc, changing this setting, if it’s there, may solve the problem.


Still no sound? Stay with me.


  • unplug your input device wire FROM THE END THAT IS CONNECTED TO THE DEVICE and touch your finger on the centre pin, if you hear sound interference the amp is working and there is a problem with your input device, if not proceed as below

  • remove your speaker wires from the amp, take one wire and swap that wire end for end with one speaker, check the cable all the way along for breaks, now reconnect the one speaker that you have swapped the cable for and retry, sometimes where some speaker wire strands are so fine you will not see a short/joined connection.


If this should fail you will need to contact the seller and let them know the problem.

Problem-amplifier is ‘clicking’ or switching off after a matter of seconds: this is nearly always down to a short, unplug the amp remove your speaker cables and reconnect if the amp seems fine proceed to switch on your input device WITHOUT your speakers attached. Turn up the amp to blasting volume (there’s no speakers attached so don’t be shy) On older or higher quality amps you can normally now hear the amp generate sound, or on the modern amps you will see the displays on the front respond to the music, or again if the amp has a fan attached after 30seconds or so this will kick in.
if any of the above occurs your amp will be working, TURN DOWN THE VOLUME! and check your speaker cables, I would advise in these cases to attach one speaker at a time and let it play for 30 seconds or so, if it still cuts out this will be due to a building ‘resistance’ and will mean you still have a short.
Anyone who forgets to turn down the volume will be in for a terrific shock to the eardrums and most likely a pair of broken speakers!


If your amplifier did not respond to any of the above contact your seller


Problem; balance, treble and bass controls do not respond: you will need to enable or press a button/function usually called ‘TONE’


Problem; i have a surround amplifier but not all the speakers work: patience is generally the answer here, as mentioned above most surround amps have a multitude of speaker output options, simply try one at a time until they are exhausted. On some amps you will only attain surround sound by using the multichannel in, normally this will work off a DVD or Blu Ray player.
If you are only getting sound out of one side (for example the left front and rear) this is sometimes because the front/main speaker wire isn’t connected properly somewhere, if the amp does not detect a main/front speaker it will not send sound through to the rears, this can also be true for centre speakers, although in the cases of where you have the option of 2 centre speakers this is normally because it is wired incorrectly, if you look at the back of your amp there is usually either an explanation or diagram showing you where to place the wires on the terminals


Again on the later digital amps there is a multitude of settings, including the size of the speakers around the room, if it is a second hand item it may be that the size of the speakers has been changed to ‘NONE’ disabling that output, simply changing it to the correct size will fix the problem.


Well I think that’s all the troubleshooting, i do not recommend opening an amplifier to anyone, not only will this void your warranty and put your life in danger from electrocution, but in almost all cases THERE ARE NO USER SERVICABLE PARTS INSIDE! If the problem cannot be resolved above I would send it back to your seller, or if this is not possible have it repaired professionally or you may send it to ourselves for safe and proper disposal.

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