Question about Gem Sound GemSound PA-585 2-Channel Amplifier

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Boost volume of computer

I want to increase the volume of my speaker output on my computer.

If you have a solution, please let me know

Thank You . . . Greg

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Connect the "line-out" of the sound card to the "Line-in" of the GEM amp

Posted on Jan 09, 2009

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I have a Marantz turntable, a Marantz CD player, an Eltax tape player and a Marantz amplifier with two Cambridge speakers, how do I assemble them into a stack system please ? Thank you

All the sources, turntable, CD player and tape unit have an output. These should go in the input of the amplifier with the same name. Then only the Tape player, could have an input, for recording music or whatever. For that input, your amplifier should have an tape out. All these should be connected with cables with tulip plugs, like these.

Use the white for left on everything and red for right.
If one of the devices as a different connector, find a cable for audio, with on one end the tulip plugs and on the other end the fitting plug.
Then the output of the power amplifier it should say output or LS, can be connected with 2 wires going to the speakers.
For this the same counts, although it is difficult to see when you use electrical wires in one colour. What comes out red on he amp, should go on the same screw connector on the speaker. Just to avoid one speaker being out of phase. It will work, but could sound a little strange when the speakers are out of phase.
With the correct model names added, perhaps we could have given a more accurate answer.

Please don't test the system or switch on, with the volume button to the max. Don't switch anything on an amplifier when the volume is high, or the setting is high. A short increase of the volume, during switching can, and has very often destroy(ed) the speakers.

Mar 11, 2015 | Marantz Audio Players & Recorders

2 Answers

How can I connect a Realstic STA-960 reciever to my Fisher CA-276 amplifier

You can link them using Tape Rec Out on one amp and connecting it to one of the Line Inputs on the other. This will allow the same signal to be played out from both amps. Each amp will power its own speakers. The volume controls will need to be operated on each amp, IOW, they aren't linked.

If your idea was to link the amps to somehow boost the power then you're out of luck. You can't multiply power up in that way. Connecting the speaker outputs of one amp to the line inputs of another will just blow the input circuits.

Speaker output is anything up to 30 Volts and could be anything up to 8 amps when the speaker impedance curve dips to its lower ranges. Fortunately the input impedance of a Line In is generally very high; 10,000+ Ohm. So the input circuit won't draw that much current. The problem is voltage.

Line inputs will accept something in the region of 1~2 Volts from a source signal. That's equivalent to roughly 1/3rd of a Watt @ 1V. The volume control wouldn't be much higher than its lowest setting. As soon as you crank up the volume even a little higher, you'd overdrive the Line Input stage on the receiving amp. That would result in.... first.... massive distortion which would cause the speaker voice coils to overheat and short (High distortion = Dead speakers = Not good). Then the input circuits would fry and kill the receiving amp.

So, all in all, a very bad idea.

Sep 01, 2014 | Audio Players & Recorders

1 Answer

I have a kenwood ka-94 and it still plays music but if I turn the volume up the speakers start making a popping noise and the speakers are not the problem so I need to know what the problem could be...

It does sound like your speakers. But it could be the output transistor are going bad. As you increase the volume causing more current to go thru them it make a clipping sound. If you have a different set of speaker try and see if the popping is replicated. If not have some check your receiver out.

Oct 20, 2013 | Kenwood Audio Players & Recorders

1 Answer

One side dead

hi zm_16dec,

Right chanel fully dead , output transistor burnedout ,

Without knowing the make and model of your amplifier

all i can advise is to replace the unknown part number of

the transistor.

Look for the working left channel output transistors and

replace the bad transistors in "pair". These may include

other components but check on it as well.

Check the speaker system, especially where that channel

is connected.Inspect speaker wires or cable up to the speaker


Amplifier wont blow without reason.It could be from the wirings,

speaker or volume settings of the unit.

Thanks for choosing Fixya for assistance!

Dec 24, 2012 | Audio Players & Recorders

1 Answer

Left speaker channel sound intimitent

It may be as simple as a dirty volume control, Some contact cleaner will remedy that. but it may also be as time consuming as finding a bad solder connection. If it drops out with headphones on, suspect the volume control area and the preamp section of the amp. If it just drops out with the speakers, but not the headphones- look at the connections around the output transistors. If nothing is apparently broken, and solder joints are sound or reflowed with no change, get a can of "component chiller" and spray each output transistor of affected chennel, and the electrolytic capacitors in the finals and driver stages until it corrects and then replace defective part, though i suspect a bad solder joint to be more likely.. .

Oct 29, 2012 | Sony Audio Players & Recorders

1 Answer

Gfa 545 output transistor replacement

first you break input signal from amplifier and boost up volume and see noise coming or not if not means u have preampfire section problem

May 17, 2012 | Adcom Audio Players & Recorders

1 Answer

Buttkicker Gamer 2 Amplifier won't turn on, light stays orange when it should be green. used to be a struggle sometimes to get it to turn green by using the remote, now it just stays orange all the...

Your Gamer 2 Amp turns on whenever an audio signal is present on the input. The amp can have trouble tuning on if the output of the source (computer sound card, etc.) has been turned down. This can happen easily if you use amplified speakers - if you turn the sound card's volume control down - and then increase the volume at the amplified speaker - the resulting sound is the same; even though the signal has been lowered. The problem is that the output from the sound card isn't sufficient to turn on the Gamer 2 Amp.

Try turning down the external speaker volume, then bump up the sound card volume. You'll probably need to adjust the other inputs individually (Wave, Mic, CD, etc) so that none is too loud or soft. Once the input values have been set, gradually increase the output of the sound card in the control panel application etc. while decreasing the volume on the amplified speaker to maintain a comfortable level. Eventually, you'll find the correct volume level on the sound card output that will wake up the Gamer 2 Amp.

If you're still having trouble, review the manual, here. I hope this helps & good luck!

Sep 20, 2011 | ButtKicker BKA1000-4A Amplifier

1 Answer

Will the amp play 2 ohm speakers

If your amp has ability to play 2ohms, then it will play. It will play even it dosn't have the provision. It might cause damage to the audio output at certain level if volume level is increased. My advice is to check your amp. or read the user mannual for perfact usage. Thanks

May 16, 2010 | Krell Showcase 5 5-Channel Amplifier

1 Answer

Intermittent drop out on Yamaha CA amplifier

The output speaker relay is corroded a bit. The higher volume creates enough voltage to bridge the gap and make a good connection again. Some of these relays are sealed and can not be cleaned. The relay should cost around $10-$15 max.


Dec 23, 2009 | Audio Players & Recorders

1 Answer

Gemsound power speaker pxa105

Disconnect any input cables from the amp. Turn down the volume controls and disconnect the speakers. Power back on. If you still blow fuses with nothing hooked up, have the amp fixed.
If the fuse holds, shut down and connect the speakers, leaving the volume controls down. Power up and see if your fuse holds. If you have hum, an output transistor is most likely shorted. If you have no noise, SLOWLY turn up the volume controls and listen for the hum. If all is quiet, turn down the volume controls and connect your input cables and turn the volume back up. Noise? check your cables!
Mister Phil

Apr 07, 2008 | NAD C350 2-Channel Amplifier

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