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Bartolini Pickups...


Moreau

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Are you starting from scratch, or are you replacing an existing pickup? If you want a complete MusicMan setup, you'll have to get an active tone control to go with it. A passive setup can be as simple as two 500K pots, a .022µF cap and an output jack. A little more information will make answering your question a lot easier.

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Thanks for the tip. So here goes. Im building a bass, so I need everything. I am not sure whether or not to go the passive route or the active. But I would like to emulate the sound of the music man, In my electronics setup at least. So i guess active. Im planning a Walnut body with Maple top. Should I go Active? what would be any drawbacks of this setup? Thanks

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Well, if you're looking for the classic 3 knob StingRay, all you need is a two-band (treble/bass) active EQ, like the Aguilar OPB-1 or EMG's BTS Control. You can buy one or roll your own - the obvious advantages of buying are guaranteed performance (low noise/distortion, good frequency response, predictable sound) and robust construction, but there are plenty of good homebrew preamp/EQ designs out there that will hang with the big boys if built correctly. If you decide to use either of the units above, you'll need two 9 volt batteries ( the BTS will run on 9 volts, but the headroom gained from the second battery is definitely worth the extra hassle, especially on a bass!), battery clips, and one 500K audio volume pot and your output jack. Keep in mind that while the EMG is great and the OPB-1 is legendary in certain circles, they will cost you a bit - street price on the BTS runs about $75-80, and the OPB-1 runs $99 at Da Fiend.

The only disadvantages in using active electronics is dealing with batteries - they take some getting used to, and if your bass is badly shielded or your wiring is bad, they'll make it more obvious, but the good ones are really transparent, and easy to use.

Oh, before I forget, the new StingRays have a 3 band EQ and some fancy switching - personally, I have no use for a Mid EQ (but someone else might), and the parallel coils and single/dummy coil sounds leave me completely cold, but they're easy enough to add if you want 'em. HTH!

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Yeah, Phil, I had some thing bookmarked somewhere - let me dig it out, and I'll post it.

<EDIT>

OK, sorry for the delay - here's a short list of EQ possibilities (from my bookmarks):

http://www.diystompboxes.com/pedals/schems/TimbreBox.pdf

Jay Doyle's 3 band resonant EQ - You could easily just implement 2 bands if you prefer.

http://home.eunet.cz/rysanek/cor_sym.gif

Simple "Baxendall" active tone control - replace the Balance pot with a fixed 100K resistor and use two 9 volt batteries for power.

http://www.mitedu.freeserve.co.uk/Circuits/Audio/t-ctrl.htm

Here's another simple Baxendall with discrete components.

http://www.montagar.com/~patj/toneccts.gif

Two more Bax stacks from Pat J - use a better opamp if you make the upper circuit (TL071 or NE5534)

http://headwize.com/projects/showproj.php?file=equal_prj.htm

MiniEQ from Headwize - scroll down to Figure 2. They use an OPA132/134, but either a 5532 or a TL072 will work fine. Leave out the mid circuit if desired.

And, finally:

http://www.albertkreuzer.com/electronics.htm#preamps

Albert Kreuzer's preamps - lots to check out. His onboard is excellent, but lacks a standard two-band EQ. Also take a look at his outboard preamp.

I had some other stuff, but I can't find it right now (typical!). All of these are workable, but I haven't actually built any of them, and they'll all need some small adaptations to make them guitar-friendly. The second entry above would probably be easiest - it'll just need a 500K volume pot on the output (instead of the 10K), and possibly some gain reduction in the first stage to avoid clipping (you might just make that first 100K balance pot a trimmer to adjust the input level). The Headwize circuit will probably work as-is, but may also need some gain tweaking on the input. Kreuzer's onboard is road-ready, but could easily be tweaked beyond recognition, and Pat J's circuits would both benefit from a buffer in front of the circuit. So, nothing guaranteed, but several really good starting points. For the best noise levels, use metal film resistors, poly caps, and pay close attention to lead dress and grounding. HTH - if you have more questions, post here or PM me.

</EDIT>

Edited by lovekraft
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