STC-3a with EQ NE1 Yamaha

[Maycon]

Hi, this is my 1st time in this forum, I'm from Brasil (a.k.a. Brazil). I have a Yamaha BB605 bass with a built in parametric eq , the NE1, developed by the great Nathan East. This eq is a great feature on my bass.

Recently, I replaced the original ferrite pickups for a pair of AJB-5, but not the original circuit. The result wasn't very nice, so now I want to replace the circuit, too. I'm thinking on Seymour Duncan STC-3a for matching with the pickups. The problem is: I don't wanna loose the NE1.

I can post a picture of the circuit later, but I think the NE1 has its own board, and it's not integrated to the main board, except for the wires.

Does anybody know if it's possible to integrate both circuits (the STC-3a and the NE1)? I know there's the NE1 pedal, but I want both circuits integrated...

Thanks a lot.

 

[Funkfingers]

Re: STC-3a with EQ NE1 Yamaha

Welcome to the forum.

The heart of your problem is that the original Yamaha pickups are high-impedance passives running into the active (powered) EQ circuit WHEREAS, the Duncan/Basslines AJB-5 pickups are low impedance (powered/pre-amplified) in their own right.

Your first conversion to active pickups into the NE-1 EQ probably created a signal level mismatch.

Take another look at the resistance values of the NE-1 control pots. Please post what you find. (Typically, the pots will be marked with legend such as A250 or B25 or D50.) Also check the claimed centre frequencies and cut/boost levels for the respective EQ systems. (There may be less difference than you originally expected.)

In my opinion, trying to integrate two onboard EQ circuits into one instrument will create clutter. I advise against.

To be honest, you might have been wiser to have installed the SD/Basslines SJB-5 passive pickups and kept the NE-1 EQ board as it stands.

 

[lex666]

Re: STC-3a with EQ NE1 Yamaha

Shouldn't this be in the bass room?

oh, wait...nder: