Tips and Tricks
Q: Our speakers pop when we turn the system on and off. Will this damage the speakers?
A: YES! This will damage your speakers. The pop can be caused by one of two things, or a combination of both. The first one is your amplifier's capacitors are discharging. Older amplifiers, like Crown DC150's & 300's for example, have no speaker protection circuitry. When they discharge, the current causes excessive movement of the cone, and/or burns up the diaphram. If this happens, your speaker will need to be reconed (rebuilt to factory specs, by replacing all but the magnet and the basket).
The second reason may be that you are powering up and down incorrectly. Make sure that the amps are the last thing to be turned on, and the first thing to be turned off. This will prevent snaps, crackles and pops from other components being amplified and past on to the speakers.
Q: Our church is in the market for a mixing console. What is a VCA and how is it used?
A: Subgrouping is a means of controlling the volume of a group of channels, which are then in turn routed to the main outputs. For example, eight channels of a drum kit are mixed, then they are routed to a group fader (mono, or two group faders (stereo) for convenient overall level control of the kit, without disturbing the internal balance. A subgroup passes audio.
On a console with VCA (Voltage Control Amplifier) grouping, the VCA groups can be in stereo, and instead of passing audio, it sends the output from the channel directly to the assigned output of the VCA. This is literally like adjusting the eight faders of the drum mix with one fader. Most VCA consoles have a combination of both VCA and subgrouping.
Do you need VCA's? That is a hard call for me to make for you. That depends on how you work and what functions you require of your console. If it were my church, and I had $30k+ to spend, I think that I would go for it. There are some exciting new entries in the VCA console market.
User Opinions:
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Wow
Awesome article. What amazes me is how God led me to this article. I am going through a trial right now and while I was responding to prayer the Lord gave me Habakkuk 3:17-19. I love this scripture. No matter what is going on around us the name o...more
Submitted by: DuntyMolly
Performing
I struggle with this all the time. I really enjoy performing and that is probably a major reason why I am involved with worship music. I pray for the right motivation, but in the "heat" of playing, it is really hard to get my ego out of the way. I...more
Submitted by: thomaskster
80dBA?!?
There's absolutely no way we could run our worship at 80dBA in our contemporary services. We'd lose half our people in a month. It's a young, contemporary, energetic church, and we target about 90-92dBA for full-out music from the band, with brief ...more
Submitted by: xjcsa
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Used by churches all over the world to help teach worship, the Experiencing Worship study can help your worship team too.
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This is the debut album by EXW friend Paul Langford. Paul is a Chicago based singer, arranger, keyboardist, producer and conductor. Paul has a career that spans 14 years. Paul's work includes arranging for groups like GLAD, Voices of Liberty, VoiceTrek, The Chicago based "Caroling Party" and Day of Discovery Singers. His arranging has appeared on recordings side by side with greats like Gene Puerling and David Maddux, and he has sung with Don Shelton, Bonnie Herman and Bob Bowker, among others.