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Post by noble60 on Oct 20, 2020 11:48:37 GMT -7
Over the last month my 2019 Model Maz 18 Reverb lost its warmth and the reverb seems to be more pronounced. I figured it wouldnt hurt and replaced the 6n14n's and really no difference. I switched from my Strat to Les Paul just in case it could be the guitar but still the same.
Let me say the amp still sounds ok but not as good as a month ago, I keep the eq the same only adjusting the mstr volume if needed. Is there anything else I can do? I have been playing it with great joy for a year so not sure what happened.
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Post by Jaguarguy (Mike) on Oct 20, 2020 12:03:10 GMT -7
Welcome to the Forum - a lot of good people and information here. If you are comfortable changing your tubes, you can try figure out what's going on with your amp by using his troubleshooting video. And as he says in it, just because you have changed some tubes doesn't mean new tubes will not have problem with new tubes.
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Post by zpilot on Oct 20, 2020 22:12:07 GMT -7
My first thought would be to replace V2 with a known good tube. I don't have a schematic in front of me to look at right now but if I remember correctly the signal chain goes like this. Signal is bled off after V1, goes through V3, the reverb tank and V4 and then that reverberated signal is blended back with the dry signal before going to V5 and the power amp. If the tone and dry/wet balance has changed I suspect you are losing something in the tone stack which would indicate V2. V2 could be working but just getting weak. Just a thought and a place to start.
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Post by DRZ on Oct 21, 2020 1:13:40 GMT -7
Over the last month my 2019 Model Maz 18 Reverb lost its warmth and the reverb seems to be more pronounced. I figured it wouldnt hurt and replaced the 6n14n's and really no difference. I switched from my Strat to Les Paul just in case it could be the guitar but still the same. Let me say the amp still sounds ok but not as good as a month ago, I keep the eq the same only adjusting the mstr volume if needed. Is there anything else I can do? I have been playing it with great joy for a year so not sure what happened. That sure is a subjective symptom " Lost Warmth " especially since you say it still sounds OK no other issues. Hard to diagnose , more info would be needed. So many things effect the overall tone of a tube amp, power in, environment, room acoustics , speaker, tubes, the last part changed, and the list goes on. As stated a pre-amp tube swap would be a good place to start. Z
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Post by noble60 on Oct 21, 2020 5:53:16 GMT -7
Thanks for all the input..Went home last night, made no changes, just played and now a noticeable volume decrease. Added more volume which normally produced a dirty sound, thats no longer is the case, had to add more master volume to achieve my normal level.
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Post by Russell B on Oct 21, 2020 7:35:03 GMT -7
Thanks for all the input..Went home last night, made no changes, just played and now a noticeable volume decrease. Added more volume which normally produced a dirty sound, thats no longer is the case, had to add more master volume to achieve my normal level. I would start with tubes. I would normally say start with preamp tubes, but I would probably start with the EL84s.
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Post by noble60 on Oct 28, 2020 7:19:37 GMT -7
Replaced tubes in V2 V3 V4 and much better
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