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Gem Sound GemSound PA-585 2-Channel Amplifier gain

powered mixer gain

powered mixer gain I recently purchased a Peavey XR 684 mixer.  I've noticed that channels 1, 7 & 8 seem to come up loud & clear but more...

.   Gem Sound GemSound PA-585 2-Channel... - Troubleshooting

EQ of two channels

EQ of two channels This amplifier has two inputs with separate gain controls, then a 4-band equalization section. My question is, do both channels get mixed and passed through the same EQ? I ask because my more...

.   Gem Sound GemSound PA-585 2-Channel... - Troubleshooting

Marshall valvestate 8040 - how to change the valve?

chagzuki, you are right, but only when the valves are used as outputs, You amp has transistorised outputs, and a single tube used for distortion/gain. You will get a very long life out of this tube also because its supply voltage that is is used in the valvestate preamps more...

.   Gem Sound GemSound PA-585 2-Channel... - Troubleshooting

Gain on one channel stuck at max

Gain on one channel stuck at max On my NAD 304 ampilfier, one channel is stuck at maximum gain, even with the volume knob all more...

.   Gem Sound GemSound PA-585 2-Channel... - Troubleshooting

amplifier power cutting out

should take up to 3/4 load but when not enough air to it to cool it off it will shut down try this turn gain all the way down and slowly work up too desired amp volume setting its speaker setup class A is the lower ohm setting so more...

.   Gem Sound GemSound PA-585 2-Channel... - Troubleshooting

peavey xxx stopped working during a show

suggest that you change you output tubes(4 x 6L6GC). I recommend Electro Harmonix, by Sovtek as a budget conscious option. Get them as a gain matched quartet. If it does not have a blown fuse at all... then get back to me here and we can do some more...

.   Gem Sound GemSound PA-585 2-Channel... - Troubleshooting

lost power

voltages present!! It A new set of output tubes never go astray in a classic amp like this. Use Electro Harmonix 6V6EH output tubes, gain matched set of course. They work great at higher voltages that these ol girls use. You could of course, just drop it to more...

.   Gem Sound GemSound PA-585 2-Channel... - Troubleshooting

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