Bass contour control with Blackouts???

[big kurka]

Hi everyone, Does anyone know if it’s possible to use a passive bass contour control like on the reverend guitars with Blackout BMP-1 module? If so would I use the same value pot and cap for it.
Thanks

 

[ICTGoober]

Will a Fender TBX work?

 

[zionstrat]

Great question... Active and bass roll off would be a fantastic combination

 

[Chistopher]

Yeah it'll work. I wouldn't recommend a passive bass cut though, purely on the grounds it's gonna be way easier to find an active one.

 

[ICTGoober]

You can buy a Fender TBX online a day for $15 each. I buy 'em half a dozen at a time.

 

[big kurka]

ICTGoober I took a look at the tbx tone control and it’s a passive system. Do you think that will work with the BMP-1 blackouts?

 

[ICTGoober]

I don't see why not. There may be something better.

 

[big kurka]

Well at $15-$20 I don’t have much to lose.
Thanks

 

[Spaghetti Bolo]

The 25k Volume pot with the Blackouts means that you won't get the same result using the stock Reverend values. I'll do some quick tests later today to see what works.

 

[big kurka]

Thanks I really appreciate that

 

[Spaghetti Bolo]

25K Linear with a .03 uf working well here. That should be giving a similar response to the Reverend. You can use .022 or smaller to cut even more bass.

 

[Spaghetti Bolo]

https://vocaroo.com/1mDNs1V4ebxd

Ok, I made a quick recording. There are four sets of dropped D chugs:

1. Stock tone
2. .03, Pot swept a couple of times
3 .022, Pot swept again
4 .0015 (Stock passive value); Cuts out lots of signal as well as all bass.

Guitar was on my lap with alligator clipped pot on the computer desk so it's quite noisy. One hand chugging, the other turning the pot.
This is the Jazz Neck loaded Strat mentioned in the other thread. It's a very bright and tinny guitar so the bass content is reined in from the source.

I was pleasantly surprised at how well the control works.

 

[big kurka]

Spaghetti Bolo thanks for performing that experiment, I really appreciated it. I’m pretty sure I have a .03 cap that I can try out. Thanks again

 

[zionstrat]

Great thread.. Thanks everybody