Gallien Kreuger Official Club Part 7

[Dredmahawkus]

no thats not on....its really low with that on.

[B-string]

3:00 is too high for the gain. Unless you mean 3 on a scale of 10. The pad switch is right next to the input jack and should not be pushed in.

[ABSOLONbassplyr]

think you can see the rb1001 on my mesa ph1000 cab. absolutely love my GK.


can i get a number??

[B-string]

You may have a bad tube.

[Dredmahawkus]

I did by it used. oh wait yeah I did one of my backwards thinkings lol its 9 o clock. 3 on a scale of 10. gain at 9 o clock and master str8 up at 12. sorry brainfart.

hey any of you guys have passive P basses with that set up mbfusion and neo 212. I only have jazz basses and kinda like the far spacing and sound of p bass....anyway I cant have 2 jazzes and no p. how do they sound with the mbfusions? I really like the feel of the deluxe basses...but I dont want active.....my deluxe jazz active passive...its not real passive. my regular passive bass sounds better in passive mode then my active passive bass in passive mode.

[Dredmahawkus]

Originally Posted by B-string

You may have a bad tube.

wouldnt I get a whistle or sound bad at any volume? I did get this on craigslist for a deal. the guy bought it new in march. I bought it in october. the only thing is it sounds pretty clean at low volume but again not super clean. I dont think it sounds as clean as youtube videos I have seen.

If I were to replace the tubes should I get a certain good brand? is there one better then another? I read somewhere these were a bitch to replace in this amp.

[B-string]

Originally Posted by Dredmahawkus

wouldnt I get a whistle or sound bad at any volume? I did get this on craigslist for a deal. the guy bought it new in march. I bought it in october. the only thing is it sounds pretty clean at low volume but again not super clean. I dont think it sounds as clean as youtube videos I have seen.

If I were to replace the tubes should I get a certain good brand? is there one better then another? I read somewhere these were a bitch to replace in this amp.

I think Tom B had a video of the tube replacement Mr Gallien demonstrated.
G-K uses JJ's but there are many brands to choose from. Sovtek, TAD, TungSol (not my favorite), Mullard, RCA, GE, Silvania......
There is no one sound or character to tube failure. It should be really clean at low volume. As you turn up the master any fault from the preamp becomes more pronounced.

[Vic]

Originally Posted by B-string

I think Tom B had a video of the tube replacement Mr Gallien demonstrated.
G-K uses JJ's but there are many brands to choose from. Sovtek, TAD, TungSol (not my favorite), Mullard, RCA, GE, Silvania......
There is no one sound or character to tube failure. It should be really clean at low volume. As you turn up the master any fault from the preamp becomes more pronounced.

My only additional advice on tube rolling this model is to use all three of the same type of tube. Some amps have different tubes that play different roles and you can mix/match with no problems, but all three of these tubes are interacting with each other in the preamp, so I strongly recommend identical models.

[Dredmahawkus]

I am going to look if they have an agent here in the east coast. I can get a wonderful clean a touch dirty slight tubey sound at low or normal volume I mean it sounds great. weird I cant dial anything in loud other then close to a speaker fart. I guess I am just going to see if whoever I find can bench test it and maybe just replace the tubes. they are almost a year old. they guy I bought it from said he just couldnt get close to the sound he wanted....and I think thats the sound I want! lol so he might have had the problem too. this is the first time I have ever put it up loud so it could have come like this.....again low volume sounds perfect. I know with other amps when you are crossing the line.....and this one is crossing the line way too early.

on a side note I love bidding $14 on $40 strings I am dying to try on ebay and winning!

[tombowlus]

Originally Posted by Vic

My only additional advice on tube rolling this model is to use all three of the same type of tube. Some amps have different tubes that play different roles and you can mix/match with no problems, but all three of these tubes are interacting with each other in the preamp, so I strongly recommend identical models.

The the six tube stages in the Fusion 550 and MB Fusion (the preamp sections are identical, circuit-wise) are indeed very interactive. They handle the following duties:

The first one takes the input signal straight to the DI when the DI is set to "pre" mode.

The second one drives the Contour circuit.

The third tube stage is an initial gain stage following the first two.

The fourth tube stage drives the High Mid and Deep controls.

The fifth stage drives the Low Mid.

The sixth and final stage handles the Treble and Bass controls, and also feeds the DI when set to "post." This output also feeds the tuner and effects loop send.

FWIW, all of this is discussed in Tom Lees' technical review of the Fusion 550 from BGM issue #3.

That all being said, I think that mixing and matching preamp tubes might be fine, but it is worth knowing what all those valve stages do, and I can see where just using one type of tube might take some of the guesswork out of the equation.

[Chef]

^^^^Oh, that's good tech, nice!
Is the MBF the same layout?

[KJung]

Originally Posted by Chef

^^^^Oh, that's good tech, nice!

+1 I think this is pretty typical of multiple tube preamps, like the Markbass Randy Jackson model, the Streamliner, the MBFusion 500, etc. from the tech diagrams provided in the manuals. Multistage preamp, with the various tubes driving the input stage, the EQ and then effects like the contour or VLE, etc. Mesa adds that 'MOSFET tube driver' very late in the signal chain. Cool stuff!

[Andyman001]

Originally Posted by ABSOLONbassplyr

think you can see the rb1001 on my mesa ph1000 cab. absolutely love my GK.


can i get a number??

#935 - ABSOLONbassplyr

[Vic]

Originally Posted by Chef

^^^^Oh, that's good tech, nice!
Is the MBF the same layout?

Yep, you missed it, he said it.

[Chef]

I just barely read at a 3rd grade level

[Warmuth]

First time out with the 412 neo this weekend, couldnt be much happier. All the reasons I gave up on the 410 for were solved with this thing. The big size of the cab is very much a non issue compared to the 410 since it takes up the same footprint anyway and is easier to roll around with the tiltback. In and out of the back of the truck was an easy one person task. Getting it in the cab would be a bit awkward by myself but it could be done. Well worth the purchase imo.

[ABSOLONbassplyr]

Thank You andyman001

[gregmon79]

I'm in!! I'm in absolute love my my GK 1001 RB II and my 410 SBX plus. I cant believe I slept on GK for so long. They make an amazing product and the tone and power I get out of these products are unreal. Love them all! Cant wait to add on/buy more GK stuff in the future. I do believe I'm a lifer.

[B-string]

Originally Posted by gregmon79

I'm in!! I'm in absolute love my my GK 1001 RB II and my 410 SBX plus. I cant believe I slept on GK for so long. They make an amazing product and the tone and power I get out of these products are unreal. Love them all! Cant wait to add on/buy more GK stuff in the future. I do believe I'm a lifer.

[tombowlus]

Originally Posted by Chef

Is the MBF the same layout?

Yes.