yamaha c-4 preamp problem maybe waterdamage?
- Thread starter aidynphoenix
- Start date
aidynphoenix
Super Member
the only way (i think) tuna makes sence if your talking with alot of slang.. like you are talking ghetto talk.. hey homie.. what happened to ya tunna? instead of tunner...
aidynphoenix
Super Member
aidynphoenix
Super Member
actually im really really excited.. the preamp is basically the main link in my system..
the main source of my music is from my computers sound out.. that normally would run into my preamps aux input.. the m-4 poweramp i have is usually on preout1..
than preout2 runs into another reciever that i use to to pick up the sound my speakers dont cover.. also to a subwoofer..
as of now, i have my computers sound out running directly into my m-4..
its really difficult to controll the volume through the computers volume pannel.. when i adjust the volume with my keyboards volume button.. it moves a decient distance.. its either loud or allthoway down.. a quiet volume isnt noticeable on the screen.. i have to lower it althoway down.. than use the arrow up key once. to make it at the lowest possible.. than i wont wake the dead.. its diffucult at the moment..
i also got some decient headphones for my birthday! going to use the c-4 to give them the real sound test!!
the main source of my music is from my computers sound out.. that normally would run into my preamps aux input.. the m-4 poweramp i have is usually on preout1..
than preout2 runs into another reciever that i use to to pick up the sound my speakers dont cover.. also to a subwoofer..
as of now, i have my computers sound out running directly into my m-4..
its really difficult to controll the volume through the computers volume pannel.. when i adjust the volume with my keyboards volume button.. it moves a decient distance.. its either loud or allthoway down.. a quiet volume isnt noticeable on the screen.. i have to lower it althoway down.. than use the arrow up key once. to make it at the lowest possible.. than i wont wake the dead.. its diffucult at the moment..
i also got some decient headphones for my birthday! going to use the c-4 to give them the real sound test!!
aidynphoenix
Super Member
hey dave.. got a little question for you..
when i was useing both pre 1 and 2 on the outputs on the c-4..
i noticed when i was useing pre1 and then pushed the button to enable pre2.. the volume for pre 1 would drop some.. and vice versa when turning off pre2 the volume for pre1 would go up.. is that supposed to happen?
when i was useing both pre 1 and 2 on the outputs on the c-4..
i noticed when i was useing pre1 and then pushed the button to enable pre2.. the volume for pre 1 would drop some.. and vice versa when turning off pre2 the volume for pre1 would go up.. is that supposed to happen?
I´ll check it out..Might have something to do with the input impedence difference between the Reciever " X " and the M-4.I have a couple M-45's I can hook up to it with a audio signal generator input on the AUX.Or just measure the output of each pre-out on the o'scope at a fixed input level.
aidynphoenix
Super Member
really cool!! is that something you have ever noticed with yours?
how do you use your rig dave?
i noticed you have 2 amps below your c-4 and m-4 that have bright blue leds!
in a photo somewhere :scratch2:
it looks like a verry nice setup!
do you use the m-4 to power your yamaha ns speakers or the ones with blue leds? im guessing those 2 things are real monsters! are those the 2- DIY esp mosfet power amps listed in your sig?
how do you use your rig dave?
i noticed you have 2 amps below your c-4 and m-4 that have bright blue leds!
in a photo somewhere :scratch2:
it looks like a verry nice setup!
do you use the m-4 to power your yamaha ns speakers or the ones with blue leds? im guessing those 2 things are real monsters! are those the 2- DIY esp mosfet power amps listed in your sig?
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aidynphoenix
Super Member
I got the unit back today!! its hooked up and jammin!!
dave did more than a exellent job!
some of the best parts are that. everything is really clean, the LEDs look better than the origional lamps.. and ITS WORKING AGAIN!!
i nolonger have static when useing the computers sound out..
and i have all my functionality and controll back!!
dave did more than a exellent job!
some of the best parts are that. everything is really clean, the LEDs look better than the origional lamps.. and ITS WORKING AGAIN!!
i nolonger have static when useing the computers sound out..
and i have all my functionality and controll back!!
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rockin1150
Super Member
lucky sucka!~
do the unit some justice and clean that room up a bit and dust.
do the unit some justice and clean that room up a bit and dust.
aidynphoenix
Super Member
yea my room is needing alot of tlc at the moment.. dusting, re arranging.. the whole works..
im soon to take everything off the stack. clean it all. install a really quiet 12v fan behind the units to keep airflow going.. and that will be my chance for a good cleaning..
im soon to take everything off the stack. clean it all. install a really quiet 12v fan behind the units to keep airflow going.. and that will be my chance for a good cleaning..
Hey, great to see you got your C-4 back!
Now, not to sound too much like a parent here (no, I'm not gonna say anything about cleaning up!), but you really ought to have more air space for that M-4. I'd suggest giving a few more inches of room above it so the heat doesn't go right up to your newly refurbished C-4. Just a helpful hint
Now, not to sound too much like a parent here (no, I'm not gonna say anything about cleaning up!), but you really ought to have more air space for that M-4. I'd suggest giving a few more inches of room above it so the heat doesn't go right up to your newly refurbished C-4. Just a helpful hint
aidynphoenix
Super Member
great idea.. that was the reason that i was going to add a fan..
and actually the m-4 doesent really get hot.. warm when used for a long time..
im not sure if it does now or not.. but the c-4 used to be the one making all the heat..
i guess i could add a coupple washers or something... maybe take 4 identical heatsinks and use them as spacers.. :scratch2:
and actually the m-4 doesent really get hot.. warm when used for a long time..
im not sure if it does now or not.. but the c-4 used to be the one making all the heat..
i guess i could add a coupple washers or something... maybe take 4 identical heatsinks and use them as spacers.. :scratch2:
aidynphoenix
Super Member
ty brianR!
the buttons fascinate me too!
i love the sleek black look.. and with the colors and power at hand..
its really cool gear!
the buttons fascinate me too!
i love the sleek black look.. and with the colors and power at hand..
its really cool gear!
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with my c-70 and m-70, the c-70 is class a, the m-70 isn't, which explains the heat difference. it's not volume that matters. A class A amp actually gets really hot when it's NOT running full blast (by design).
maybe your c-4 m-4 situation is like that too.
Probably be differing opinions here.But when heatsinks have no provisions for self-tapping screws like the C-2's I use permatex black silicone # 81158.The heatsink surface to be bonded needs to be clean as well as the PC board clean of all old glue.
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