Is this possible?

The only PASSIVE EQ that can CUT and BOOST frequencies (that I am aware of) is the Villex Passive EQ. It has cut and boost in lows/mids/highs. In fact, this very moment I am trying to upload some samples in zshare

 

Your G&L's controls are cut only. The preamp is more of a line boost than a traditional preamp. G&L pickups have a metric poopieeton of bottom to start with so they don't need a bass "boost". I'm curious how the Villex Passive EQ system works. I don't know of any way to boost a level without some sort of power.

 

I need to pull out my G&L 2500 cause I am am not sure that the pots for highs and lows are functioning when the preamp is off

 

About ready to order the new system myself, but I would certainly love to hear the samples first!

 

I don't know how he does it but I have heard the EQ and I know it works (I own it for one reason). I am trying to upload files (.wav) on zshare right now but it takes ages

 

there is no way to boost a signal without haveing an active filter or preamp in place. you simply cannot get something out of nothing.

 

You'd think so, but you'd be wrong in this case. The Villex systems (I have had two different boosters of his) do in fact what they claim to do.

How it's done? Dunno, but it works.

 

I totally agree with you, but... how does one explain that the Villex PRTB when bypass-ed does not affect the output of my bass (we are all ok with that, I suppose) but gradually increases the output of my bass when turned on (the input gain indicators of my iAmp show that, as well as my ears listen that)? I am no electrical engineer, even though I am a scientist. I am not able to give any answer, but just state the result

 

I did a little digging an it appears what they are doing is useing a very hot pickup that delivers more than normal gain to the circuit which is then split to the different tone controls and attenuated. It is then mixed back in with the original but attenuated signal. So it sounds as if you get a boost but all that is really happening is you are getting more of the initial power from the pickup. At least this is what I understood from what I read.

Make sense? Its very inovative and quite clever if you ask me.

 

That does make sense. Jibes with the XLR option being available (gonna get that too)...you would need a pretty hot signal for that to work.

 

I agree with this part. What about the PRTB booster? the pickups were there before I placed the booster so I know their passive side and their output (and the increase of output when engaging the booster). Still I believe what I hear

 

Villex passive EQ only comes with Villex pickups. Villex tone booster (PRTB) can work with any passive pickups. So the only way to have Villex passive EQ on a G&L is to replace the pickups.

Villex PRTB boosts mids and lows; you can read a review with sound samples here. It was used with an active bass in the review, but you can still get some idea on the change in the sound.

Tigran