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Super/Bassman JMayer/SRV mods?!!?

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  • #16
    This scenario isn't unusual, I see (& do the odd bit of work for) some very talented players, with great tone, who either set control & tone knobs by eye, rather than ear...

    ...or stick to certain numbers because they "always have"... or because they saw/heard someone else with those settings & it influenced them greatly early on - despite the fact that they personally don't sound anything like the source of the settings (though they might sound great themselves) & that 2 models of the same amp can sound quite different even when working properly.

    It doesn't take anything away from their talent, but occasionally it can wrong foot them with an unusual amp/set up, that doesn't meet their preconceptions. E.g. their amp might get a new volume pot with a slightly faster/slower taper and they'll try and convince you that the amp is malfunctioning, when all they might need to do is adjust the pot...some folk I've met would appear to be keener to jump off a cliff than turn a pot up/down by half a mark.

    I think it's largely part of the human condition to try and set/recognise visual patterns, for a sense of reassurance/security and it's not unusual for some really talented players to be quite insecure/superstitious. Put it down to artistic temperament.

    Also, even for a lot of pro players, it is difficult for them to retain a certain TONE in the memory...pitch isn't a problem, but often I'll hear guys say, "Hey, this sounds just like (insert artist of choice)", but when you A/B to a reference it usually doesn't, though it might share some attributes with the quoted tone (even a single note can be quite complex, with regard to harmonics/envelope/level of drive etc). Not that that in itself bothers me, I try and take people's tone & assess it on IT's own merits, if it sounds good it IS good...irrespective of how much it does/doesn't sound like an artist that they may have been influenced by. It can be infuriating though, when someone has a great tone themselves, but they permanently bang on about this player or that player...seemingly unaware that they'll never sound like them in a million years. Oops! On reflection, I might have to include myself in the latter part of that one...& apologies for anyone else shifting uncomfortably around in their seats right now...YES, I MEAN YOU! :-).

    For instance I have been at live recorded gigs & the sound that comes off the CD bears little relation to what came off the stage on the same night, once EQ'd in the studio.

    On some rare occasions you'll come accross a player with an unholy tone, they'll say "yeah, I can get a great sound out of anything, I just use this old such & such guitar/amp...", next time you see them they have a new bit of kit & they sound totally different (tonally that is - phrasing & note choice, musicality might be as strong as ever) and they may never hit that initial sound ever again. Let's face it, we probably all have a favourite album/session by a player where they hit our perception of tonal nirvana...whether that session was the same for them may be a very different matter (you can often hear something in a session that causes you to change approach & never retread some old ground ever again). It can be just part of someone's musical journey/growth.

    Personally, I find that numbers on dials can confuse the issue, sometime you should try just shutting your eyes & dialling in the controls, from your regular start point (I start with bass then work up). See where you end up... then see how/if it works in stage

    Back to SRV - weren't a couple of Diaz's tweaks to the 65 RI Vibroverb to switch/pull the normal channel V1 tube (rebiasing V2) & using a 12AX7 in the PI? I don't doubt SRV did use a 5751, at least at some time, but I have heard guys get ball park with AX's in a BF circuit.

    So, short story long, just because someone is talanted & has great tone, doesn't mean that they're not infallible in other ways, like the rest of us mortals.

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    • #17
      MWJB
      I see what you mean and you are certainly right. But that's not what I meant.
      I do believe in numbers when I set up my amp on a gig. But only to find a base from where I start to tinker with the knobs (not much, just a bit to match the location - and even that might be misleading, I agree).
      It might also be different with live/studio setups.
      About SRV I learned he used to fumble around a lot in the studio with all of his amps at the place, to find the right tone. OK that wouldn't make him immune to the numbers thing as it wouldn't many other players.
      Anyway, maybe I don't wanna believe SRV did just that ().
      Fact is, he must have agreed to the tone Cesar set his amps to.

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      • #18
        Diaz did not reveal a lot of details about what he did to SRVs amps. He said the crucial thing (I'm guessing he was referring to the Fender Vibroverbs and Super Reverbs) was to replace the original output transformers and carefully set the bias so each valve/tube got the correct voltages. He also said the 15" speakers in the Vibroverbs were crucial to getting the "Big" sound. He's quoted as saying that a loss of treble response in 15" speakers is a myth.
        In the December 1997 Guitar Player an article mentions using JBLs in the Vibroverbs and EVs in the Super Reverbs but no details on the actual speakers.
        In the "In Step" sessions there were also a couple of 200 W Marshalls - one going into a 4 x 15" cabinet and the other a 8 x 10". Diaz said that at one point they had 32 different amp signals going into the mixing desk. I'm guessing some of these signals were from mics set in different places in the amp rooms.
        Going back to the original poster - MWJB has hit the nail on the head - you have an idea in your imagination of what you should sound like - it's like John Mayer but it's YOU - it comes from your mind and your fingertips. The key is to match what's in your head with what is coming out of the speakers. Before spending a lot of money, you should try plugging your Super Reverb into a lot of different speakers and cabinets and find out what sounds right to you. If possible, ask a tech to let you try out Fender amps he has modified to get an idea if you like the mods or not. One person might like 4 EVs, the next person might like 4 Celestions. Once you've decided what you like, then spend the money on your amp.

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        • #19
          Originally posted by Stratabuser View Post
          He also said the 15" speakers in the Vibroverbs were crucial to getting the "Big" sound. He's quoted as saying that a loss of treble response in 15" speakers is a myth.
          In the December 1997 Guitar Player an article mentions using JBLs in the Vibroverbs and EVs in the Super Reverbs but no details on the actual speakers.
          EVs in the Supers...were those 10inch EVs? Holy Smokes, can you
          imagine what they weight in at? Wondering if the EV is heavier or
          lighter than the 10 inch JBLs?

          Originally posted by Stratabuser View Post
          In the "In Step" sessions there were also a couple of 200 W Marshalls - one going into a 4 x 15" cabinet and the other a 8 x 10". Diaz said that at one point they had 32 different amp signals going into the mixing desk. I'm guessing some of these signals were from mics set in different places in the amp rooms.
          Going back to the original poster - MWJB has hit the nail on the head - you have an idea in your imagination of what you should sound like - it's like John Mayer but it's YOU - it comes from your mind and your fingertips. The key is to match what's in your head with what is coming out of the speakers. Before spending a lot of money, you should try plugging your Super Reverb into a lot of different speakers and cabinets and find out what sounds right to you. If possible, ask a tech to let you try out Fender amps he has modified to get an idea if you like the mods or not. One person might like 4 EVs, the next person might like 4 Celestions. Once you've decided what you like, then spend the money on your amp.
          Not to take anything away from Stratabuser, but I can only think of
          one tech where this is possible to play through many cabs, amps, etc.

          I agree, that your key is correct, to match what is in your head with
          what comes out the speaker.

          This is a trail and error process some folks spend a life time going through
          gear. Sometimes you feel a bit different and want a different tone...hence
          different amps, pedals, etc.

          Diaz, though was right, IT was not the speaker, filtering out the highs in the
          amp, it was the sacred blue caps, the water absorbing carbon comp resistors, and the undersized, saturated at 3 output tranny. I'll have
          to look around here and see what I can find as far as gear goes...

          ...I do live in SRV country. ; )

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          • #20
            EVM 10M weigh in at 18 lb. The re-issue '65 Super reverb with Jensen P-10R speakers weighs in at 65 lb. The Jensen P-10R weigh 3.15 lb.
            With EVMs it would weight 65 + 4 x (18-3.15) lb = 124.4 lb, not accounting for the thicker plywood.

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