need suggestion on graphic eq for bass

[Ahmad_tbp]

hi , i just found boss ge7 ( 7 bands graphic eq for guitar ) i wanna use it for my bass , and i need to change the frqs to these :

40-120-400-500-800-4k-10k

so how can i change the caps to give me these freqs ?
thnx a lot ...

( the ge7 circuit s here : http://web.tiscali.it/boxsmt2clone2005/link_boss_ge7.htm )

 

[leadbelly]

http://sound.westhost.com/project64.htm

 

[Ahmad_tbp]

hi .. i want to change these ge7 freqs to bass guitar range .. i review the Rod Eliot project 64 , but i couldn t understand which values i should change .. anybody help ?

 

[sreten]

Hi,

as bass is tuned an octave below a guitar the simplest
thing to do is double the value of all the capacitors used
for EQ. You also need to double any coupling capacitors.

🙂/sreten.

 

[Ahmad_tbp]

sorry i m so new in electronic 😛 ..
u mean i should double the value of c1-c2-c4-c5-c7-c9-c10 ?? wat bout c3-c15-c6-c14-c8-c10 ??
and which one s couplin cap ?

 

[Nigel Goodwin]

There seems no point in changing it at all?, why not just buy a bass one?, check the new (very cheap!) Behringer pedal Here.

 

[Ahmad_tbp]

cuz i cant find any bass effetct pedal here ... unfortunately ...
u can find any guitar effect , anything u want bout guitar ... but lack of bass stuffs , ...

 

[sreten]

sorry i m so new in electronic 😛 ..
u mean i should double the value of c1-c2-c4-c5-c7-c9-c10 ?? wat bout c3-c15-c6-c14-c8-c10 ??
and which one s couplin cap ?

Hmm.....

asking this question perhaps you should just buy a cheap pedal,
its a lot easier, and it will work.
I suspect the results of your efforts might be a very dead pedal.

But you can safely ~ double every capacitor in the top half of the circuit.
(except the the low noise mod capacitor)

You can reuse most capacitors somewhere else e.g. C8 becomes C14.

🙂 /sreten.

 

[Ahmad_tbp]

u mean tantanium caps , right ? 😛