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Bass Wiring Problem.

  • 26-12-2008 06:39PM
    #1
    BuddhaJoe
    Closed Accounts Posts: 329 ✭✭


    Hey Guys! Hopefully someone here can help me out. I'm trying to put in a set of 6 string EMG's into a Warwick Corvette 6 and I'm running into a major issue.

    The bass is making a lot of noise depending on the angle of the pickups. When facing straight ahead the bass is fine but If I lean the bass fowards or backwards there is a noise similar to having a bad ground. I have unscrewed the pickups out of the body to confirm its the pickups and not something else within the body. The wiring is fine, I have tried two pre-wired EMG harnesses so there shouldn't be any issues there. The pickups are internally shielded and do not require a bridge ground either. Anyone have any suggestions?

    Edit: It might be worth mentioning the person who originally put them in did attach the bridge ground. Might this have interfered with the internal shielding?


Comments

  • #2
    Darkstrike
    Registered Users, Registered Users 2 Posts: 476 ✭✭Darkstrike


    I dunno much about active pickups, but I thought they didn't need a ground, take it off and see?


  • #3
    Dord
    Closed Accounts Posts: 10,815 ✭✭✭✭Dord


    For active EMG's (not HZ's) you shouldn't have a bridge ground as the pickups are internally grounded. A bridge ground can cause noise.


  • #4
    BuddhaJoe
    Closed Accounts Posts: 329 ✭✭BuddhaJoe


    DOH! I was in a room with a big fluorescent light and a heavily lit up Christmas tree and for some reason didn't cop on that these could be affecting it. Had it in the studio earlier and it was fine. Ah well :o
    Dord wrote: »
    For active EMG's (not HZ's) you shouldn't have a bridge ground as the pickups are internally grounded. A bridge ground can cause noise.

    Yup. Now that I've removed the bridge ground wire they seem much quieter.


  • #5
    Dord
    Closed Accounts Posts: 10,815 ✭✭✭✭Dord


    The EMG's should be noiseless regardless of whats around.


  • #6
    BuddhaJoe
    Closed Accounts Posts: 329 ✭✭BuddhaJoe


    Dord wrote: »
    The EMG's should be noiseless regardless of whats around.

    Like completely noiseless? Currently there is no hum unless its around something like a fluorescent light, but the noise thats present in that situation appears to be no worse than a humbucker equipped guitar.


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  • #7
    Dord
    Closed Accounts Posts: 10,815 ✭✭✭✭Dord


    Yes, they should be quiet unless you're playing. :p


  • #8
    feylya
    Moderators, Music Moderators Posts: 23,365 Mod ✭✭✭✭feylya


    They're noiseless due to the cleanliness of the power supply ie, the battery is providing nice constant power. I think.


  • #9
    Paolo_M
    Registered Users, Registered Users 2 Posts: 880 ✭✭✭Paolo_M


    Shielding the body cavity might help a bit with the fluorescent light's if you're going to be around them much. Shielding helps block the coupling of RFI (fluorescent bulbs are notorious for the RFI they emit) to your signal.
    You can usually get a RFI supression cap for the fluorescent light either which also help improve things a bit.


  • #10
    Doctor J
    Closed Accounts Posts: 11,848 ✭✭✭✭Doctor J


    Your power to the amp could be full o' ****e too due to the aforementioned light.


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