Bass effects

[Nikolay]

Hi gyis, this is my first post. I play on bass and try to find some (I think) great effects. I have bass processor korkg ax1b, but I think that this processor is not verry good. I try to find here in this great forum information about 2-3 effects, but I don't find schematics. I search schematics for Fulltone Bassdrive, EBS Multidrive and maybe one of the best (I think preamps with drive for bass) Sansamp Bass Driver DI.
I will be gratefull if someone can help me.
Thanks

[SirPoonga]

What are you looking for?  Schematics of those effects or simular?

If you are just looking for anything start skimming through the schematics here and off sites linked from here.

I started a bass effects thread some time ago, you can search for that.

[niftydog]

The sansamp is a great tool, but I would say it's a great "effect". Plus, it's expensive and quite hard to DIY.

I'm a sucker for the funky sounding pedals, bassballs etc. But don't limit yourself to effects made especially for bass, most of my pedals are specific to guitar.

[zeta55]

I did try the penfold autowah with the bass. I think it sounded great.
http://ampage.org/cgi-bin/hammer/index.cgi?cmd=lt&xid=&fid=&ex=&pg=5

[Nikolay]

SirPoonga, I search schematics, actually I like to do sansamp for bass but another ciruits I like to make only to test overdrive

niftydog

it's expensive and quite hard to DIY

no problem about that I'm not beginner

most of my pedals are specific to guitar

tomorrow I finish with tubescreamer for one friend, and I will play with ts9 with my bass, to lisen his sound.

[niftydog]

I know of several threads asking for the schematic, as far as I'm aware it hasn't surfaced yet. This pic from a previous thread.

no problem about that  I'm not beginner

Nor am I, but I bought mine rather than go through the incredibly long process of reverse engineering such a beast... I figure it cost me the equivalent of 2 days at work but would have taken weeks of my time to reverse engineer it.

There was even some talk about the numbers being filed off the ICs, hard to tell from this photo.

[Nikolay]

I see all rhreadas too, before asking, but I thing, that someone make sheme at this moment. I think that sansamp gt2 have a similar circuit like this for bass. I have friend that have sansamp for bass, and I can take it, but he don't give me to broke the blac box....

[niftydog]

cracked open mine last night, here's the scoop:

- the black box isn't just a box, underneath the box (you can easily lift it off the board) is a big dollop of black goo that looks incredibly difficult to get off without damaging the board.

- at least two of the surface mount ICs have their numbers filed off, making it virtually impossible to decipher their function and type.

- many unmarked surface mount capacitors that would require removal from the board in order to measure them accurately.

- RG's advice about stompbox manufacturers dirty tricks tends to make me not trust the labeling on the surface mount resistors.

and that is all just on one side of the board!

Totally guessing here, but I'd say that underneath that black goo is possibly some form of DSP or other programmable device(s) in tiny packages. If there is software involved here you can forget it. They don't go to this much effort to disguise the identity of the IC's without protecting the software as well!

[runmikeyrun]

yeah that's one pedal i would definitely buy.  Check eBay if you don't want to go with a new one.

[Nikolay]

I'd say that underneath that black goo is possibly some form of DSP or other programmable device(s) in tiny packages

No, you are wrong. inside the black goo is passive "heart" of sansamp. in Sans Amp GT-2 (guitar version) in this black goo are smoe passive elements. like resistors and capacitors. no dsp or other digital effects
all sansamp effects are analog.

[niftydog]

No, you are wrong

Well, thanks for breaking it to me easily... after all, I did say:

Totally guessing here, but I'd say that underneath that black goo is possibly...

Sans Amp GT-2 (guitar version) in this black goo are smoe passive elements. like resistors and capacitors.

You seem to know more about this device than anyone I've chatted with on this forum. So how have you come accross this tidbit of information?

[Nikolay]

see this
//www.axiomdrift.com/schematics/GT-2%20board.jpg