Recent content by godwentpunk

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    Really WEIRD reverb issue

    Ever since I replaced the G12 Century Vintage Alnico speaker, the hum has gone away. In fact, I've put in 2 different speakers and played each for about 30 minutes without any hum. I'm going to try later today to put the alnico speaker back in to see if the hum comes back. If it doesn't, then...
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    Really WEIRD reverb issue

    So I removed the grate from the back.. still have the hum... Next I replaced the G12 Century Vintage Alnico speaker I had in it for the OEM speaker and hum went away... I can't believe a speaker would do this but who knows... maybe by virtue of me laying the amp down to replace the speaker put...
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    Really WEIRD reverb issue

    The amp is in the same position that it's been the last year... I'm going to try and clean the contacts on the reverb tank to just make sure that it's not something with that and maybe with the back on, things "reverberate" more causing this issue. I just played the amp for 30 minutes with the...
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    Really WEIRD reverb issue

    I updated my post... The amp is a PRS Custom 20 combo
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    Really WEIRD reverb issue

    I apologize for the long post.... I noticed a couple months ago my amp was producing a hum that would slowing come and go. About 3 weeks ago the hum got noticeably louder and I tracked it down to the reverb. Regardless if the reverb was engaged or not, I would hear the hum and the only way to...
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    PRS Custom 20 tube layout

    I search and search and could not find anything.. until after I created this post. So, here is what I found: V1-V3 are the "tone circuit" V4 is the reverb driver V5 is the PI V6 is the effects loop joe...
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    PRS Custom 20 tube layout

    I found the schematics for the tube layout on the PRS support site but it does not tell me what each position does. Does anyone here know those details? Here at the positions and the tubes for each V1 12AX7 V2 12AX7 V3 12AX7 TungSol V4 12AT7 V5 12AT7 V6 12DW7 thanks! joe...
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    PRS Custom 20

    Thanks for the heads-up... So I did as you suggested and my boost is working today. I'm not sure why just the boost switch was acting up but I hope it was a one time thing. Is anyone aware of footswitches from a different manufacturer that might work? joe...
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    PRS Custom 20

    I have another question. I went to use my amp last night and the solo boost was not working. The light does toggle on the footswitch but I'm not getting any volume difference. I moved the knobs around on the back but that didn't help either. Could this be an issue with the footswitch or the amp...
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    PRS Custom 20

    I'll give your suggestion a try this week. thanks for help me with this. joe...
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    PRS Custom 20

    So I turned things up and give myself a ear-ringing night... but yeah, when played loud, it certainly is not boxey at all. It is still a very tight amp which I link but I think I prefer a more vintage (open) sounding amp. I have a band practice (hopefully) at the end of the week and I'm going...
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    PRS Custom 20

    I'm really not running the master very loud at all, maybe that is the problem. I did pull the MID and the PRESENCE pot which helped a little with the bass response on my lead channel... which at the moment, has the bass set to full open. Now, the clean channel does have some better low end since...
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    PRS Custom 20

    I recently picked up playing this combo again after playing my Marshall JVM combo over the last year. I noticed that the PRS sounded a little thin and boxy (almost solid state like) on the lead channel. For those with this amp, is this typical? or am I in need of new tubes.. I put in a couple...
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    Bias Pot Location

    I have a Custom 20 and I *think* the bias pot location is on the lower portion of the amps main head. It looks like its buried at the bottom of a 1/4 input jack... is that really it? I don't want to be putting my screw driver in there if that's not the correct place. I know I need to get a...
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    Custom 20 hiss

    I promise that this is the last post from my phone that does auto correct. The hiss is on my LEAD channel only. I tried the first 3 positions with a new tube and in doing so, I've noticed I get strange results from v1. For example, with one tube, turning the volume knob eliminated some...
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