chino007 said:Yea I placed a call to Boogie and had to leave a message with Serial # for info as from all the reading I've been doing on this Forum it appears apparent that it would be benificial to know exactly how early or late my Mark IV came out in order to make an informed decision on which tubes to use when I retube the whole thing as the person I purchased it from couldn't tell me the age of the tubes, currently can see that it has STR 440's in it now, couldn't see the preamp tubes clearly except for the 12at7 I can see. Any Suggestions??
Mongo1 said:The jack underneath should be the remote EQ control for connecting to a Simul-Sattelite amp. It allows the MKIV to be used as a stereo setup and will allow both the MKIV EQ & the SS EQ to be switched together from the MKIV footswitch.
Here's a pic of the corresponding SS jack.
http://forum.grailtone.com/viewtopic.php?f=27&t=44643&start=0
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