DIY Rodent Kit for Bass ?

[incubus20851]

Hello,

I recently purchase a Rodent kit from GGG, it works very well, a friend of mine who play bass tested it, and he loves the tone but when it's engaged he losses some low frequencies. In my opinion it's because it's designed to work with guitar and not Bass.

So i would like to know, how can i do to use a rodent kit who works well with bass ?

He also have another problem, he plays on a Ampeg tubes amp. So to have the good sound he must push the amp very far, it's then too lood to record or even for a small gig. What would be the solution ? A Hot plate attenuator for bass ?
Or you have a solution that i can build ??

Thanks a lot for your response
See you !

[rousejeremy]

You could try increasing the value of the input and output caps.

[petemoore]

  Post is below..  

[rousejeremy]

The Ruetz mod increases bass a bit too.  http://www.diyguitaramp.com/rat.html

[petemoore]

  I'll go with everything except the room stayed the same.
 The room changed and the big speaker in the little room doesn't work the same when it's 'working [cranked.
 To get it working requires a larger room [out.
 A smaller cabinet/speaker arrangement [large volume cabinet sound doesn't fit into smaller cabinets.
 Smaller amp...more likely the amp/speaker thing with the big setup is what makes it 'go' good. Smaller amp and cab...starting over basically...
 Rat tweeks: Larger input cap [easy when cut/spliced in input wire, lets more bass in the circuit [might distort some of it. Larger outcap also increases bass output. Whether the speaker does the same [probably not] better or worse can only be known after..bass in big cabinet let out into little room thing would tend to increase though.
 Dampen around or between cabinet and the 'bounce wall', matress, curtain...anything.
 I've gone so far as to block part of the speakers off with anything..padded box, I Don't like slamming compressed air right against the speaker cones on a cranked amp, so that's why the box, the idea being to leave some breathing room [and reduce possible cone over-pressure] but absorb a portion of the sound, what an attenuator does, but without the string of 1/4'' jacks, plugs, cables, and a room heater between the OT and a crankin' speaker cabinet, using simple, tunable accoustic impedance.

[incubus20851]

Ok so i think, i'm going to do the Ruetz Mod with 2 pots.

What would be the values of the input and the output cap ?
And where it belongs ?

Thanks for your answer