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EMG outboard power.
- Thread starter thrill74
- Start date
You should be able to use a balanced cable to carry the signal on one lead and the power on the other, you just need to make sure your power supply design is very clean (No ripple) to avoid any noise in the signal path. Since your pickups only need a couple of milliamps power, that should be easy to do.
- Aug 21, 2008
- 10,386
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- Owner, SGD Music Products
Do you want to plug into the board for recording/PA, or for phantom power?
You don't need an XLR/Balanced line to plug into the board. Just plug into a line in jack. Balanced lines are for microphones, which have fairly low output. You don't have to worry about noise with the EMGs.
If you want to do it for phantom power, you will need a voltage regulator at the bass to convert the 48V to 18V, and will have to extensively wire it. It's not worth it. It will run on battery power for a long time. I've gone six months between battery changes.
Be sure to run them on 18 volts. They sound better.
You don't need an XLR/Balanced line to plug into the board. Just plug into a line in jack. Balanced lines are for microphones, which have fairly low output. You don't have to worry about noise with the EMGs.
If you want to do it for phantom power, you will need a voltage regulator at the bass to convert the 48V to 18V, and will have to extensively wire it. It's not worth it. It will run on battery power for a long time. I've gone six months between battery changes.
Be sure to run them on 18 volts. They sound better.
- Aug 21, 2008
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- Owner, SGD Music Products
I've been using batteries in my basses for about 34 years. Never had a battery go dead on me during a gig. There's nothing to worry about.
But you can wire them up to use the stereo ring-tip-sleeve jack for power. But then you have to reply on bringing you power supply.
And I would be willing to bet that the power supply would be more hassle than just using a damn battery.
yes... but some amps have "phantom powered" input jacks, like EBS do. I can understand if someone feels better with power supplies. and then they can use ANY op-amp or active elements, no worry about tens of milliamps
yes... but some amps have "phantom powered" input jacks, like EBS do. I can understand if someone feels better with power supplies. and then they can use ANY op-amp or active elements, no worry about tens of milliamps
Tens of milliamps?
That's an insane amount of current, unless you've got LED inlays or something.
Exhibit A:
[Invalid or Expired Link Removed]
For real though...the batteries aren't that bad bro. I've gone a year or two before I needed to swap mine out...and its never been at a gig.
no, if you are using some better performance op-amps..
of course, I try to find the best compromise between battery life and sound quality.
If you are using low current opamps, the current draw would be like 100 microamps, even less current.
- Aug 5, 2005
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- Endorsing Artist: J.C. Basses
I have lost my battery at a gig, but a battery swap isn't as inconvenient as not having a quick-change battery compartment. I'd focus on that above all else.
Furthermore, without batteries, you can't enjoy wireless systems.
Furthermore, without batteries, you can't enjoy wireless systems.
Nonsense! You just wire a cable from your power supply to the wireless unit to give it power.
- Aug 5, 2005
- 7,243
- 92
- Disclosures
- Endorsing Artist: J.C. Basses
Nonsense! You just wire a cable from your power supply to the wireless unit to give it power.
So keep an external power supply (powered by batteries) in one pocket and the wireless in another pocket? Why not just have them in the bass at that point? lol.
I guess you could re-wire the transmitter to pass the voltage along with a stereo jack, but re-wiring the transmitter would
1) void any warrant you had on the system.
2) be more laborious than just keeping batteries in the bass
3) be limited to 9V supplied to your pickups (unless you stepped it up with more laborious internal wiring)
4) drain the battery much quicker so that you'd be more prone to batteries dying during the show.
Mount the wireless transmitter inside of the bass and then run a guitar cable from a power supply stompbox to the output jack of the bass to supply power to the wireless transmitter.
- Aug 21, 2008
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- Owner, SGD Music Products
That's a clever idea. Doesn't help if you use some stomp boxes between the bass and the amp though. I guess they assume you will use the effects loop (and I assume it has one).
Uhhh, dont use dollar store batterries. Use duracell alkaline. They'll last for several months. Either use a sharpy to write install date right on the battery, or write install date on a little peice of paper taped to the battery. If you feel the need, swap the battery out every 4 months, otherwise you can reasonably rely on duracells to last at least 5 months and probably 6-7.
+1
I write on mine too...and when I change em, I use em for suttin else..(around the house or practice..not at a gig)
I awlays chg them before they die.
And I ALWAYS use Duracell...the coppertop
+1
I write on mine too...and when I change em, I use em for suttin else..(around the house or practice..not at a gig)
I awlays chg them before they die.
And I ALWAYS use Duracell...the coppertop
isn't there already a (separate) battery status indicator on the market?
like the blinking led in the Audere preamps.. actually I'm just designing one, but I don't think that I am the first, who came up with this idea.
by the way: EBS has switchable phantom power on their input, and at their loop input too, and their pedals use them.
still doesn't work with multiple pedals, but nice feature, I think.
