however, if the amp has a line out, its a slightly different issue.

hey, would this PA system be sutiable for practising and gigging with,
In the band there is:
2 guitarists
1 bassist
1 drummer
1 lead vocals + 2 backing vocals

all amps (2 guitar amps nd 1 bass amp) are 100watt...

also, would we need do buy anything extra to add this system

Note: the system is in australians dollars as i live in australia...

sorry i forgot to add the link...

here it is [url]http://www.venuemusic.com.au/Products.asp?ProdID=3300[/url]

[QUOTE=moaner]however, if the amp has a line out, its a slightly different issue.[/QUOTE]
You'll still need a speaker load on the first amp.

Los3r Kid:

I'm from Australia too. And this youth centre where my bands sometimes play have got an inhouse PA very similar to that one.

It is a very suitable setup. And should be fine for some gigs of perhaps up to a couple of hundred people. More than enough to play in pubs and Youth Centers.

With 100 watt guitar and bass amps. You probably wont need to run them through it. They should be loud enough on their own. If not. Just add on more speakers.

I also understand that that PA can be split for Monitoring. So that may also be an advantage if you ever intend to buy a couple of monitor wedges for it in the future.

cool thnx dude

[QUOTE=Aes820]You'll still need a speaker load on the first amp.[/QUOTE]

really?

<learns something important>

[QUOTE=moaner]however, if the amp has a line out, its a slightly different issue.[/QUOTE]

o yea? it would work if i did it threw the line out?

If the amp has a line out, you can run that into the PA.
But you still must have a speaker attached to the amp head.

o **** ok thanks

would this: [url]http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&category=23785&item=3754354484&rd=1&ssPageName=WDVW[/url]

work with this: [url]http://www.zzounds.com/item--NDYPFW12[/url]

?

Thats a monitor, not a PA speaker, in the 2nd link.

It would probably work, and be ok for practising.

Beofre you could gig with it you would really need to get yourself a pair of PA speakers.

Trying to cut corners rarely works in the world of music gear.

i know, i meant for practising, and for gigs we would use it to point towards us so that we could hear ourselves

Hey does anyone have any suggestions for a book about Live Sound, stuff like how to get a good sound and what kind of gear is appropriate for certain sized venues. And maybe something that explains triamping and other complicated stuff like that. Thanks

[QUOTE=KissMeIamSh*tFaced]i know, i meant for practising, and for gigs we would use it to point towards us so that we could hear ourselves[/QUOTE]
Yes. That would be good for jammign and practising. One of those speakers should be fine. But two of them would be better.

[QUOTE=BlinkRockr41] Hey does anyone have any suggestions for a book about Live Sound, stuff like how to get a good sound and what kind of gear is appropriate for certain sized venues. And maybe something that explains triamping and other complicated stuff like that. Thanks[/QUOTE]
Read some of the articles at this site:
[url]http://www.peavey.com/support/technotes/[/url]
Particularly under the subheadings; Concepts/Definitions, Power amplifiers, Processors, Safety and Sound systems

ok two questions

1. A PA i am considering buying (mixer and power amp) only has one output for monitor, and one for main. Does this mean it will only take one monitor speaker and one main speaker?

2. A 300 watts PA with two outputs... Does this mean that it's 150 watts per output and that we can put two 150 watt speakers, one out of each output and they won't blow up?

1. This is incredibly unlikely, Could you link us this alleged power amp and mixer with only one speaker output? ohmage is the real issue here.

2. 300w is almost certaintly 2x150w, even if you don't get true stereo, you should still get 2 speakers run quite normally out of it.

You can usually run more than one speaker off of one amp, but it's a very tricky process of matching impedience. If you want to use a 4ohm speaker on an 8ohm amp, it will run louder, but it may over-work the amp in the process. The reverse will may be no healthier for your amp, but it will mean less power (with an 8ohm into a 4ohm). Now the tricky part is matching the speakers to your amp. As a quick sheet, two 4ohm speakers in parallel are 2ohms (WARNING: 2 OHMS WILL DAMAGE MOST AMPS) and two 8ohm speakers is 4ohms in parallel. I'd explain the math, but I'm not a math teacher, although I'm sure someone else can explain the formula.

As for the 300W into two outputs, read around the jacks, if you see the word "parallel" in the area, chance are you have one amp, just two places to plug in, so just think of it as the speakers being in parallel.

[url]http://i1.ebayimg.com/02/i/02/9a/0b/c1_1.JPG[/url]

theres a pic


And thanks for your help ey... i really apreciate it


EDIT: Wait i just saw a pic of the back for the first time, and i think i figured evrtyhing out


[url]http://i9.ebayimg.com/02/i/02/97/59/02_1.JPG[/url]

I think those outputs on the front of the amp are for line level connections.
So you can run the monitor output into a pair of headphone and the Main output into additonal amps, or recording equipment, or whatever.

Those two connections on the back of the amp are what you'll connect your speakers up to.

Diesel is spot on correct with his info about ohm loadings. As seeing as that amp of yours cant be used at less than 4 ohm. Running two 8 ohm speakers off both of those outputs will be your best bet. (two 8 ohm speakers in parrallel = 4 ohms total).

um ok so i will only be able to connect two speakers?

Two 8 ohm speakers in parrallel. Yes.
You can connect more if you wish. But you'll have to connect them in a manner so as they do not equal a load of less than 4 ohms

For example. You can connect two 4 ohm speakers together in [B]series[/B] for a total load of 8 ohms. If you do this to another pair of 4 ohms speaker and connect both sets together in [B]parallel[/B] then it'll have a total load of 4 ohms (2x 8 ohms in parrallel = 4 ohms).

This is called parallel series wiring. And you are basically wiring two series circuits together in parallel.

There are many more combinations open to you. And if you arm youself with this basic theory you can use it to you advantage.

ok thanks alot man

Okay this may have already been mentioned but I dont have enough time to look through all of this.

My band is just starting to look at PA Systems and we have no idea what were looking for. Heres the things we need to run through it;

My wireless mic system
Possibly 1 or 2 wired mics for back ups
2 guitars
1 bass
drums
at least 1 in ear monitor set
HOT SPOT POWERED VOCAL MONITOR

what do I need for all of this? Could you send me a link for the cheapest PA? How do you go about getting drum mics into a PA system? Thanks

For that setup it's not going to be a case of one PA. I think you'll be better off getting a number of things.

Since you'll be looking at micing up drums, as well as instruments and perhaps DIing the Bass. Plus at least three chanels for vocals. Then you'll probably be better off getting a mixer with enough channels for all this. And that'll be a big one. Perhaps 12-16 channels. A mixer with some built in FX would be advantageous. Then you'll also want a suitable poweramp and a couple of speakers for it.
You can run the in ear monitor and the powered monitor off the mixers Auxillery buses, simple enough.

This may set you back a few dollars. Perhaps upwards of a couple of grand. More if you are also wanting to get all the mics and accessories with it also.

If you can live with not micing up the bass/drums/guitars things can get alot more affordable. In a lot of venues there is just no need to run the instruments through the PA. Depending on the size of the venue your own backline volume may be enough.
And.. In venues that require these instruments to be mic'd up. Then chances are they may have their own inhouse PA with provision to mic up all the instruments.

Although your own PA for volcals always comes in handy. And for that, I would reccomend looking on musiciansfriend for some packaged PA setups.
You can get setups which consists of a powered mixer, a couple of speakers and perhaps even some speaker stands and Mics.
I would suggest looking at brands like Peavey and Yamaha. And at about 2x300 watts.

Once again, you can run the in ear monitor and the powered monitor off the powered mixer's auxillery outputs.

A plan?
 

Aes, you know how my band have one 60w and one 150w PA? Well, would this work?

-plug the vocals and synth into the 2 mic inputs into the 60watter
-plug the speaker output of the 60 watter into some (unpowered) monitors
-plug the 'aux out' of the 60w pa into a channel of the new one
-mic up/line in guitar and bass into the 150w PA
-put the guitar and bass amp at at the back of the stage slanted so the drummer and other band members can hear them
-Have the monitors facing us and the drummer so we can hear the vocals and synth (the 2 things without amps to be heard)

Is this a good idea? Would it work? can you see any problems with it?

Yea that is a good idea. Yeah it will work. And no I don't see any problems with it.

OK, my band has the vague semblance of a PA - we currently have 2 75watt speakers, and a recently acquired 15 channel mixer (unpowered). This is going to mainly be used for rehearsal but we will be carting it around to a party or two as well. Obviously, we're missing a poweramp. What wattage should we be looking for a poweramp to put out, for our situation? The PA will be used for:

- vocals (1 mic at the moment, but perhaps more in the future)
- 2 guitars
- 1 bass

At the moment our guitar/bass amps are quite pathetic; they're pretty much the standard beginner amps (10w, 20w). They completely lack the ability to not be drowned out by the drums. How much would it cost to mic up 3 amps to the PA system, and would it perhaps be better to just upgrade our amps and then use the PA solely for vocals? Another thing, if we did mic them, would we plug those mics straight into the mixer?

And just out of curiousity, what happens if you plug a guitar amp head, with no speakers connected, directly into the mixer?

Behringer sell a set of 3 mics for £35, plus £20-25 for leads

You can buy reasnoble mics for £15, they're ok as long as you're not doing proffesional recording i guess

A poweramp can cost as little or as much as you want- you can still buy a powered mixer and plug the 2 outputs of your mixer into 2 channnel inputs should you so wish.

You can buy an 80w Kustom powered mixer for not very much at all, but if you want a proepr poweramp i think they start at about 100w a side and go up from there.

NO! don't plug a guitar head into a desk without a cab, you will damage something.

And also, it would be better if you upgraded your amps and still used them with the PA.