krazy_olie Posted July 11, 2011 Share Posted July 11, 2011 (edited) Been having a play with my new Aerodyne Jazz and have noticed something a bit weird. The pickups (Wizards) soloed have even volume across the strings but have a bit of different tone, the D and G strings are more "punchy" and the E and A are sort of "ringy chorusy". After playing acoustically I put this largely down to the strings which are steels and I always use nickels, the E and A have a lot of ring whilst the D and G sound similar to the sorts of nickels I usually use . When turning up both to get that sort of scooped jazz bass sound the top two strings have a slight drop in volume for the top two strings (expected I believe)bottom strings seem to have a more significant volume drop . Seeing as with pickups soloed the volume is seemingly even I can't put it down to pickup placement/level the only thing I can come up with is that the scoop is affecting the overall volume or "perceived volume" more on the bottom two strings than the top two. Is that a "reasonable" guess? Edited July 13, 2011 by krazy_olie Quote Link to comment Share on other sites More sharing options...
Al Heeley Posted July 12, 2011 Share Posted July 12, 2011 Any chance the different phased signals from both pickups on combination are showing a bit of destructive interference, giving some output decrease at certain frequencies? Quote Link to comment Share on other sites More sharing options...
krazy_olie Posted July 12, 2011 Author Share Posted July 12, 2011 Hmm, maybe the wiring is not quite correct. [url="http://basschat.co.uk/index.php?showtopic=11084&hl=pickup&st=20"]http://basschat.co.uk/index.php?showtopic=...ickup&st=20[/url] in fact my aerodyne gets discussed in that topic!... "You need to reverse the wiring on the neck pickup, I had the same problem when I first fitted Wizards to my Aerodyne." I don't mind opening up to have a look but I'd be a bit wary of screwing around with the wiring unless I knew exactly what I was doing. Quote Link to comment Share on other sites More sharing options...
Wil Posted July 12, 2011 Share Posted July 12, 2011 If the pickups are out of phase, then to fix it should be as simple as swapping the two wires from the neck pickup round, it wont cause any harm. I had a similar issue when I first wired up my mongrel P/HB bass, I'd mixed up the hot/ground wires from the neck pup. Quote Link to comment Share on other sites More sharing options...
krazy_olie Posted July 12, 2011 Author Share Posted July 12, 2011 (edited) might give that a try. spotted this thread too. (easy to find if you have the right keywords!) [url="http://basschat.co.uk/index.php?showtopic=62655"]http://basschat.co.uk/index.php?showtopic=62655[/url] the p pickup does actually buzz a bit so maybe I would also need to try the other suggested fix of swapping the polarities of the top half of the coil. I'm more worried about doing it myself simply out of fear of getting solder on the bass itself (it's white ) or something stupid like that rather than messing up the circuit. I will have a look for sure though. Edited July 12, 2011 by krazy_olie Quote Link to comment Share on other sites More sharing options...
krazy_olie Posted July 13, 2011 Author Share Posted July 13, 2011 (edited) bleugh, opened up again to have a look and a couple connections (ground and one from the j pickup) came off. Time for a pro to take over I think, was going to take it in for a setup anyway. I had a job soldering for 6 weeks once but can't figure out what is supposed to go where, even with a diagram. [url="http://www.seymourduncan.com/support/wiring-diagrams/schematics.php?schematic=std_p_j_bass"]http://www.seymourduncan.com/support/wirin...ic=std_p_j_bass[/url] Edited July 13, 2011 by krazy_olie Quote Link to comment Share on other sites More sharing options...
krazy_olie Posted July 24, 2011 Author Share Posted July 24, 2011 Problem resolved Big thanks to Andy at Wizard,sent the pickups to him and got them back within the week! The problem has now gone and works brilliantly. Quote Link to comment Share on other sites More sharing options...
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