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Post by Hacksaw on Nov 17, 2005 17:56:00 GMT -5
If the tubes, for some reason... ended up biased cold, or  , it will be hard to get a warm fat drive... it will sound thin etc.. things happen to tubes.. especially in transit.. Shippers do have football syndrome! you never know.. am I understanding you are the third owner? There may have been something from the beginning? the 6l6's in my Mesa rock.. deep and hard. just lacked mids.. top seemed brittle. but thats after I had to replace the tubes in 3 weeks,, and I was the first owner. and thats been a talked about problem as well with mesa. Everything else I own is EL-34. From the sound clips on the splawn site,, is your amp even close to the drive they have? May actually have something wrong if you dont hear what others have posted! maybe a call to scott would be very helpfull to you.. or a QR like others are suggesting!! |
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Post by shreder75 on Nov 17, 2005 22:08:41 GMT -5
I can't remember who it was, but someone on harmony central has a pro mod..and they did a recording of a BLS song and it was HEAVY AS ALL GET OUT..
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Post by DonaldDemon on Nov 18, 2005 9:14:25 GMT -5
These are all good thoughts. I was also thinking that the tubes are biased too cold from the beginning and that's why this amp has been around. I don't really think anything is wrong with the amp.
With that said, I think the volume was the issue. I had been running at about 7:30 in my bedroom and it was lacking umph. Last night I took it to my recording sesiion and had the master about 9:30 and the preamp about 3:00 and HOLY SH*T!! I have never got such a sick sound for a recording. It was exactly the sound and tone I wanted for the song. Even the engineer said it was the biggest guitar sound he ever recorded. Granted we did run a Fender Blues Junior in conjuction for a little flavor but even on its own it was really ripping.
I will have to have a tech check the bias because I can't see turning up that loud for most shows without killing everybody.I can't wait to gig with it to see how it does. It is the general sound I had in my head but I do wish it could do real saturated tones but I guess you can't have it all. Maybe a pedal would get me there.
I will post a clip after the guitar work is done. Even w/o eq and compression the guitar sounds just kills. I have a reference CD to work out the solo and as raw as it is I have never been happier with the sound!
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Post by shreder75 on Nov 18, 2005 9:45:00 GMT -5
I think these amps are way more than 100 watts..lol..never have I not been able to turn a 100 watter to 9:00 and have to leave the room...with this I have to though...lol....
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Post by DonaldDemon on Nov 18, 2005 9:50:28 GMT -5
I think these amps are way more than 100 watts..lol..never have I not been able to turn a 100 watter to 9:00 and have to leave the room...with this I have to though...lol.... Most definitely. Its just a general label really. 4 output tubes=100w 2 output tubes=50w (unless they are EL84's or smaller). I believe I heard someone said they were actually rated at 120w ! I wonder if a power soak would hurt the tone? |
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Post by scottdh on Nov 18, 2005 9:52:19 GMT -5
I think these amps are way more than 100 watts..lol..never have I not been able to turn a 100 watter to 9:00 and have to leave the room...with this I have to though...lol.... Trudat. Scott's amps will get stupid-loud. |
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Post by shreder75 on Nov 18, 2005 10:07:34 GMT -5
I think these amps are way more than 100 watts..lol..never have I not been able to turn a 100 watter to 9:00 and have to leave the room...with this I have to though...lol.... Most definitely. Its just a general label really. 4 output tubes=100w 2 output tubes=50w (unless they are EL84's or smaller). I believe I heard someone said they were actually rated at 120w ! I wonder if a power soak would hurt the tone? I had a 5150 and a triple recto..and this thing is louder than either of those..lol |
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Post by Hacksaw on Nov 18, 2005 15:11:24 GMT -5
ya Loud!! :-) crank it!! haha.. I dont know what splawn bias's his amps at, and what the voltage to the tube plates is.. but.. by design you could get 100% out of 6L6's, max dissapation is about 30 watts per tube, but you will have short tube life biased up that high.. most amps are biased around the 70% of max disapation. thats still 80 to 100 watts!! enough to make you rattle stuff at your neighbors house! then theres that spl thing on your speakers! just add more cabs and crank it up!!
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Post by craggin on Nov 18, 2005 15:34:17 GMT -5
I checked my bias (I didn't adjust it, just checked it) with a Weber Bias Rite...
My QuickRod's PV measured 495 and the cathode current measured 30.0...which is around 60% of max diss.
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Post by Hacksaw on Nov 18, 2005 15:39:28 GMT -5
I have one of those weber Bias Rites as well,, very cool tool!! sure makes it fast and easy!
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Post by DonaldDemon on Nov 18, 2005 16:07:20 GMT -5
So am I correct to say that running the tubes hotter will bring the gain to life more or would it increase headroom instead? Maybe I will just try a power soak.
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Post by Hacksaw on Nov 18, 2005 16:30:56 GMT -5
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Post by DonaldDemon on Nov 19, 2005 10:11:35 GMT -5
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Post by craggin on Nov 21, 2005 11:28:59 GMT -5
Yep, there really is no right or wrong...but what your ears say. I've biased an amp really hot just to see how it sounded and it ended up sounding mushy. Biased too cold adds life to the tubes, but can sound thin. What is too cold...I dunno, depends on the amp, I guess. When I brought my JCM800 in for a tuneup, my tech biased way higher than I had it...probably closer to about 75% or more of max dissipation...but that is where there was no crossover distortion. With bias...it can be a lot more art than science.
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Post by Dirrty Craig on Nov 21, 2005 13:45:07 GMT -5
Scott told me my QR was running at around 168 watts,, LOL.. unreal.
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, it will be hard to get a warm fat drive... it will sound thin etc.. things happen to tubes.. especially in transit.. Shippers do have football syndrome! you never know.. am I understanding you are the third owner? There may have been something from the beginning? 
