slayer63636 Posted November 1, 2005 Report Share Posted November 1, 2005 i have a marshall 8200 valvestate head. i love the sound i get from it but the only problem i have with it is its volume. its a 100x100 watt head but since im using it in mono its only 100 watts. everyone at my house complains when i have it at the lowest volume possible. what i want to know if there is a way to mod it so i can have a headphone output??? ive heard of some amps that had this mod done to them. Quote Link to comment Share on other sites More sharing options...
gripper Posted November 2, 2005 Report Share Posted November 2, 2005 Wow, what a head! 4 output speaker jacks! My problem is that it is solid-state output and I don't think my fix would work. I use a headlight out of my Impala (may it rest in peace) wired to a 1/4" plug and plug it in with the speaker . I don't have the nerve to plug it in by itself but it does cut the ouput volume about in half. My head is all tube and does not seem toi have a problem with it. They sell a load resistor for amps that takes the place of the speakers but they are like real pricey. It is also hard to find the adapter you need to plug a set of stereo headphones into a mono 1/4" jack. Before anyone asks, no, the headlight does not flash kinda cool while you play. It just gets kind of yellow. I think you should wait to get a proper mod as you asked for because those solid state amps are really fussy. Till then, rock your guts out! Quote Link to comment Share on other sites More sharing options...
lovekraft Posted November 2, 2005 Report Share Posted November 2, 2005 Do yourself a favor, and buy a practice amp to use at home. You could build an attenuator to drive headphones from a 100 watt amp, but it's expensive, usually sounds horrible, and there's a fair amount of risk to the amp's output transistors if you don't get it right. Quote Link to comment Share on other sites More sharing options...
ansil Posted November 4, 2005 Report Share Posted November 4, 2005 if you are confident in your skills most of the amps have enough juice coming from the buffergoing into the power section so that you can pop a hole in the chasis and use a stereo jack and take the line level preamp signal to some headphones. i have done this on a few amps the biggest thing i found out was that to keep from not having a load on the power section i installed a secondary switch to cut off the power to the powerampsection of the amp head. KEEP IN MIND I DO THIS FOR MY DAILY BREAD and have done this for some time. doesn't mean i am an expert only that i have screwed up enough in my time and have done this day in and day out for 15-20 years. so if you have any doubts then ask yourself can i afford to blow up my amp. ed ps the schematic should be over at www.schematicheaven.com Quote Link to comment Share on other sites More sharing options...
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