El Toro Preamp taming/R7 mod?
Posted: Wed May 24, 2017 10:45 am
I have seen many discussions regarding the L1500 preamp mod (taming via a loading cap or the R7 mod). The R7 mod that I read about is perfect: it matches pretty much the same high frequency content as in passive mode.
I was wondering if there is something similar to the R7 mod for the EL Toro?
I have a July of 1983 El Toro and the active mode adds a very noticeable treble boost. Many say this bass is a slap machine and was extra bright for that reason. It is a great tone, but I'm no slapper! It seems that perhaps the treble boost is there for cabs that didn't have tweeters/horns as they were still just coming up in popularity at the time?
I would like to remove that treble boost without having to turn down the treble knob. In passive mode, I really like the tone of the bass with all knobs on 10. In active mode, the treble knob has to come down to about 6-7. I use this bass in a situation where I'm switching the tones quite a bit, active, passive, pickups in series, pickups in parallel, neck pickup soloed...
I have solder skills and like to perform reversable mods. I just don't have the electronics know how to look at the schematic and know which part of the circuit is equivalent to R7. Any suggestions will be helpful and appreciated.
I was wondering if there is something similar to the R7 mod for the EL Toro?
I have a July of 1983 El Toro and the active mode adds a very noticeable treble boost. Many say this bass is a slap machine and was extra bright for that reason. It is a great tone, but I'm no slapper! It seems that perhaps the treble boost is there for cabs that didn't have tweeters/horns as they were still just coming up in popularity at the time?
I would like to remove that treble boost without having to turn down the treble knob. In passive mode, I really like the tone of the bass with all knobs on 10. In active mode, the treble knob has to come down to about 6-7. I use this bass in a situation where I'm switching the tones quite a bit, active, passive, pickups in series, pickups in parallel, neck pickup soloed...
I have solder skills and like to perform reversable mods. I just don't have the electronics know how to look at the schematic and know which part of the circuit is equivalent to R7. Any suggestions will be helpful and appreciated.