GreeneKing

Here's a photo of what I suspect your MEC hot and cold pickup connections look like: You need to solder a wire onto the braided outer to make the two wires to connect into the East pre (I've insulated the solder connection): I fitted a Uni pre into my MEC equipped GMR yesterday. The pickups in my bass are passive but the white hot/cold wires are the same The braided wires don't go to ground they are the cold pickup connection: It worked straight up:

Jon bought my Seymour Duncan Doubleback Compressor, a pleasure to deal with. Peter

I bought a TC Electronics Corona Chorus from James. Great to deal with and rapid delivery. Peter

I would suggest yes. The J-Retro has trim pots on the input. They work with active pickups. Don't hesitate to ask John. He is the person to ask. Peter

Yes it should be an easy fix. The rear of that neck looks sumptuous.

[quote name='BassBunny' timestamp='1482340831' post='3199754'] East, Noll and Glockenklang do as well as far as I am aware. In fact Noll make an active blend that you can add to a passive instrument and get the best of both worlds. [/quote] The new East Uni pre has an active and a passive blend. When you switch the type of blend switches. There's also trimmable pots to adjust the individual pickup levels. So you have all the merits of a simple switch plus infinite blend settings.

As Tom says. Passive tone control takes away. Active usually does +/- and in a set range of frequency. Some basses are 2EQ, treble and bass, others are 3 or 4 adding mid control. Many active basses have an active passive switch so you can change if you prefer or if you get caught out with a low battery. Some even give you passive tone control as well. Depending on the active EQ you may get other added 'bells and whistles' like adjustability 'under the hood' or a bright switch.

Really great to see someone develop something different like this. The pickup covers look great. The only bad neck I've had in 100 basses was a Lakeland Skyline one.

[quote name='bubinga5' timestamp='1482239075' post='3198711'] Love this bass. I presume it's an anniversary SR5. ? Love the flame Maple with the tobacco burst. [/quote] I've an HH one also loft lurking but only because I have too many to choose from. It won't be up there long.

I've just ordered a John East Uni-pre - 3 knob variety for the GMR. It's really 3 knobs and an active/passive switch. This thread helped me appreciate that with the 3 knob model I'd lose the passive tone control so I've got back to John to change to the 4 knob model. The cavity is huge and an extra hole is needed either way. Fans of the East U-Retro may like to cast an eye over the feature set of this replacement Uni-Pre. Not only is it modular it also has a whole lot more versatility, for the same price. http://www.east-uk.com/pdf/UNI-PRE-4K-U-RETRO-DX-4K-COMPARISON-01-2015-03-10.pdf Awesome!

I've just traded my NT Thumb for Pete's GMR. Great to deal with, excellent communicator and super fast delivery. A pleasure. The GMR's are a bit of a pleasant surprise Peter

John East's new UNI-pre's have this very facility. The blend is double pots and therefore works properly both active and passive. In passive on the 4 and 5 knob unit there is a separate passive tone that works in active too like on my ACG. Edited to correct knob numbers.

15 pints normally does it for me

That does look nice. Red wine does it for me too, and gin.