How to Set Up PA Systems : How to Set Up a Power Amplifier

Learn how to set up the power amplifier for a PA sound system in this free professional music video from an expert PA system designer.

Expert: Kip Bradford
Bio: Kip Bradford has earned his living as a musician and sound system designer consultant.

Category:

Entertainment

Tags:

• public
• mixing
• addresss
• pa
• sound-system
• concert
• soundboard
• microphone

[techubbs94]

if 4+4=2 then all of my logic is thrown out the window

[djsareawesome]

wow these retards are still posting? lol

[ThnD]

@ThnD with 3 8ohms speakers:

paraller: 1/(1/8+1/8+1/8)=2,6666....ohms­. So almost all todays amps can handle that...

series: 8+8+8 = 24ohms .. no sense

2 paraller + adding 1 series: 1/(1/8+1/8)+8 = 4+8 = 12ohm

4x8ohm spekers:

paraller: 1/(1/8+1/8+1/8+1/8)=2ohm

series: 8+8+8+8=32ohms..

paraller pairs to series: 1/(1/8+1/8) + 1/(1/8+1/8) = 4+4 = 8ohms ..

[ThnD]

There's some ways to set up 8ohm impedance speakers.. and examples abt ohm's law..

2x8ohm speaker setup in 1 channel:

paraller(++ and --): 1/(1/8+1/8) = 4ohm ...

series(+- and -+): 8ohm+8ohm = 16ohm ...

so you got 2 choises split the power or double the power that amp gives to the speaker. Very easy... But be aware most of the PA amps can't handle smaller than 2ohms load per channel. specially in bridge situation.

[Cody6210]

i have 2 8 ohm speakers in one channel is this okay

[SWATPhantom]

@lpoverdrive kidding

[SWATPhantom]

@lpoverdrive a 1000000000000 watts amp

[lpoverdrive]

i just need something for my living room, very small/inexpensive but still loud if i need it. what amp should i use?

[isaacu]

You said masterfaders....HA..

[readerwriter]

Overloading the impedance of your amp will most likely damage your speakers before it damages the amp. The first thing that will happen is the amplifier will begin to clip, when the amp clips it's creates square wave in the output signal to the speaker, that makes the speaker want to be in two places at the same instant, this in turn will most likely overheat the voice coil, first causing distortion then potentially frying the coil completely.

[kylie9832]

these people are craaapola