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EMG pickup wiring for two 40TWX with 3 band eq

Joblivion

Joblivion

Jan 30, 2020
219
121
Toronto, ON
#1
Hey Y'all,

Im thinking about getting 40TWX pickups for my bass and am wondering how I can still maintain 3 band eq.

If it's not possible then my next question is should I only get one TWX and use a DCX or CSX with a blend eq system instead?
 
#2
It is possible. I have two EMG TWX pickups with EMG 3 band EQ (BQS Control) on a bass. The knobs are configured: Neck Vol (P/P: dual/single coil), Bridge Vol (P/P: dual/single coil), Bass, Mid/Mid freq sweep (stacked), Treble.

The EMG solderless connections really makes it easy, though it could also be confusing.

Just download the "PPP INSTRUCTIONS" pdf file from one of the TWX pickup web pages and use the Diagram #8 as the base connection method, but use the output from the last P/P Vol pot to the BQS Control input (instead of to the Master Tone pot as depicted). And finally hook the output of the BQS Control to the bass output jack (of course, not to exclude the red battery wirings).
 
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#3
I have two different basses with a pair of TWX pickups and 3 band BQC control. Push/pull volume for each pickup as well as stacked mids and stacked bass/treble. I LOVE this setup. Every so often I will flip a pickup upside down in order to see what tonal changes I can get from repositioning the single coil location. Awesome pickups. Very versatile and sound amazing to my ears.
 
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#6
Joblivion said:
It says two batteries are recommended. Unfortunately, unless I have a professional expand my battery cavity, I don't see that being an option for me. What are your thoughts?
Click to expand...

Preferred, but not required in my opinion. Having owned 5 fully EMG pickups/preamp equipped basses... 4 currently, I've run three of them on 18v and two of them on 9v. I've never had a problem with the 9v configuration. Of the two 9v basses, one has a dual 40DC setup, the other dual JX. If I were to get another bass to load up with EMG's, I wouldn't concern myself with routing for a 2nd battery cavity. Two is ideal, one is still absolutely fine in my experience.
 
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#7
Aidil said:
It is possible. I have two EMG TWX pickups with EMG 3 band EQ (BQS Control) on a bass. The knobs are configured: Neck Vol (P/P: dual/single coil), Bridge Vol (P/P: dual/single coil), Bass, Mid/Mid freq sweep (stacked), Treble.

The EMG solderless connections really makes it easy, though it could also be confusing.

Just download the "PPP INSTRUCTIONS" pdf file from one of the TWX pickup web pages and use the Diagram #8 as the base connection method, but use the output from the last P/P Vol pot to the BQS Control input (instead of to the Master Tone pot as depicted). And finally hook the output of the BQS Control to the bass output jack (of course, not to exclude the red battery wirings).
Click to expand...
I'm thinking of doing this setup myself. Will i need to buy anything other than the pickups and BQS control. On websites it mentions volume and blend rather than Volume P/P for each pickup. Is this just a change in setup or will i need to buy different parts for this?
 
#8
Joe Rosochacki said:
I'm thinking of doing this setup myself. Will i need to buy anything other than the pickups and BQS control. On websites it mentions volume and blend rather than Volume P/P for each pickup. Is this just a change in setup or will i need to buy different parts for this?
Click to expand...

If you're specifically using dual TWX pickups, you will need to go dual volume, push/pull on each for swapping between dual/single coil modes. Or you would need two switches (or one switch, one push/pull volume) if you wanted a volume/blend setup with dual TWX. I've gone dual volume with my TWX basses and I like the configuration. Also did not need additional routing for switches.

I've done this twice. Both times I went with the BQS control instead of the full BQS system since the pups came with the push/pull volume knobs and I did not need or want the active blend.
 
#10
Joe Rosochacki said:
I'm thinking of doing this setup myself. Will i need to buy anything other than the pickups and BQS control. On websites it mentions volume and blend rather than Volume P/P for each pickup. Is this just a change in setup or will i need to buy different parts for this?
Click to expand...

Much simpler to run pushpull volume than to do the alternatives. Volume and blend setup is for non-twx/tw pickups
 
#11
I have been trying to get this to work for months.

2 x EMG 40 TWX and a BQS

I have the 2 push pull pots daisy chained "neck PU to bridge PU to BQS to output"

The signal will only come from the bridge pickup that is directly connected to the BQS. If I change the connection to "bridge PU to neck PU to BQS to output" it will only receive signal from the neck pickup.

I have contacted EMG multiple times, but they have stopped replying to my emails.

Any assistance will be greatly appreciated.
 
#12
1976 P Bass said:
I have been trying to get this to work for months.

2 x EMG 40 TWX and a BQS

I have the 2 push pull pots daisy chained "neck PU to bridge PU to BQS to output"

The signal will only come from the bridge pickup that is directly connected to the BQS. If I change the connection to "bridge PU to neck PU to BQS to output" it will only receive signal from the neck pickup.

I have contacted EMG multiple times, but they have stopped replying to my emails.

Any assistance will be greatly appreciated.
Click to expand...
Did you follow their diagram on page 4? Get that working, then substitute the BQS for the VLPF.

1762827068566.png
 

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