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I have MTX TP112 speakers and would like to know which amp and mixer is good for my set so that i can get decent amount of karaoke out of them. Its nottin fancy. Just a in-home set up for personal entertainment, no big or huge rigs will be going on. My speakers is 300w max, so can i put a 250w amp to drive them? Or is can i just buy a powered mixer and use that. Any recommendation will be fine. Also, what is the best cable to use to hook up to get best signals, the red/white or 1/4 input from microphone. Thanks.

There are two approaches.  If you have a good stereo amp already, 120W/channel or more, you could use that and a mixer. I did that (using the TP112) for a year before moving to pro sound equipment. But probably the powered mixer approach would work well -- something like the Behringer PMH-1000 or PMH880S. Others might recommend low-cost mixers of other brands.

As for wires, I don't know what you mean by "red/white". Those would usually be the RCA plugs what connect your source (laptop or CDG player) to the mixer.

You are going to need XLR cables for mic to mixer, and 1/4" to 1/4" (or Speakon to 1/4")  for mixer to speakers as well. Make sure of what connectors are on your mixer before you buy them.

The nominal power is 150 watts

Here is a candidate link

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Those speakers will work great for home use providing you do not boost bass freqs going to them.

Use the 1/4" jacks on the back of the speaker to connect to any pro stero amp that provides at least 150 Watt RMS per channel @ 8 Ohms....Or if your amp have red and black binding posts, use 12 gage stranded wire from amp to binding posts on speakers.

Don't be scared to amp those speakers with more power per channel cause you can ALWAYS crank down the power, whereas too small an amp will cause destructive clipping if you go for more power/volume than the amp can deliver.....so consider a pro amp or powered mixer that delivers 150-250 RMS watts per channel @ 8 Ohms.

you started off on the right foot.....You selected speakers first that were designed to fill your living room with adequate sound levels and were designed to reproduce prerecorded music and reinforced vocals....So keep stepping in the right direction.....DO NOT attempt to use home audio amp to power them.

Ok i have selected 3 powered mixer.

http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... :IT&ih=005
http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... :IT&ih=018
http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... :IT&ih=013

Erm i dont want to spend more than 250. Will these be fine?

Two good reasons NOT to buy any of those:

A. all are seroiusly underpowered
B. they are made by Vocopro

oh ok. Recommendations for powered mixers then?

Consider the Peavey PV900 power amp that puts out 180 watts per channel @ 8 Ohms......It is perfectly matched to your speakers......About 299 but can be found cheaper if you shop.....Peavey has best warranty and warranty service in the business.....5 years.

http://www.zzounds.com/item--PEVPV900

Then add simple/cheap mixer.

Keith, he wants a power mixer; not an amp and a mixer.

Here is a page full of choice:

http://www.zzounds.com/prodsearch?q=pow ... orm=search

Just be very careful when reading and interpreting those spec.

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Oh ok. Im having some confusion. If a powered mixer or amplifier listed as 600W, what does it really means? Also what does it means when speaker has 450w peaked power?

Discussion of this is a bit beyond the scope of this forum. You can read the Yamaha Sound Reinforcment Handbook for all the formulae....usually the "program" rating is what you try and match the amp to, perhaps a bit less.

Suffice it to say the TP112, which I own, should be driven with an amp from 120w/channel (if you don't push volume too high) to 225 w/channel. This is into 8 ohms, while most powered mixers are specified into 4 ohms.

The Behringer PMH-1000 would drive it on the low end (about 120w/chan at 8 ohms, 200W into 4 ohms), or the PMH-3000 on the high end (that is the one I have, 225w/chan 8 ohms, 400w to 4 ohms). The PMH880S is the same power as the PMH-3000. For home and light duty use the Behringer stuff seems to be fine to me -- a lot of the pros here claim it is not durable, and since I don't heft it in and out of gigs night after night I can't gainsay them. But it certainly works for some people, including me. You can't beat the bang for the buck.

try reading this:

http://www.yorkville.com/default.asp?p1=6&p2=0&p_id=17

Read the power amp section:
http://www.peavey.com/support/technotes/

and this will round it up:
http://members.cox.net/pasystem1/

But if you have the time and the ........
read this:
http://www.soundcraft.com/palz.asp

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I can neither confirm nor deny ever having or knowing anything about nothing.... mrscott

Sorry mckyj57, but I disagree. THIS is the place for such discussion.

Thanks Jian for posting those links.

As all can see from Jian's links, most powered mixer makers play games with the specs....They treat powered mixer buyers differently than other folks buying non-powered mixers....It's like they ASSUME powered mixer buyers are more stupid than those who buy their non-powered mixers.

I am not a big fan of powered mixers for several reasons.....mostly because the makers usually attempt to cut costs by shorting us on power and features, then claiming their mixer is "all we really need".....But it never fails that sooner or later we discover we need lots more than the typical powered mixer offers....A KJ CAN buy the correct powered mixer once he learns enuff and spends enuff, but while learning he is much better off buying his components separately.

Proper speakers come first.....They must be selected carefully in that they must be able to fill the expected venue to proper sound levels and be able to handle the extremes of pro level/stage level amplified human voices......Then the power amp must be able to deliver the power those speakers demand.....Too small an amp will fry the speaker's horns almost instantly.

The reason the horns fry from too small an amp is simple.....What happens is the music being played is sent to the speaker's built in crossover....The crossover sends mids and lows to the big coned woofers, then the highs to the upper horns.....The woofers demand most of the amp power available cause mids and lows needs lots of power to move that big paper cone and coil assembly, whereas the horns that handle the high freqs need instant access to the amp's peak power.....So horns require amp peak power, whereas woofers require amp's continuos power rating.

Now in operation, what happens with too small an amp is that the woofers steal all the available power and the horns then cause the amp to clip....When the amp clips, it sends a square wave of pure DC power straight to the horns and the horn voice coils instantly burn out.

Yep!

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Wow thanks everybody for helping me out. I decided to get me the Peavey PV900. Just arrived today. However, I dont understand its input. There are several ports on there that i do not recognized other than the Mic input. I dont see any RCA input. My old mixer only has RCA output. How do i connect to peavey into my mixer? Output through the gauges i know that. But what do i need to connect to input? Thanks.

Ok update:
I google some of the port on the back. It looks like it has a speakon cable, never seen in my entire life, and TRS connectors. But my mixer doesnt have ANY of those mention previously...so help!!! Is there RCA to TRS or Speakon? How do i connect?

I don't recall you mentioning what mixer you have, but it must have line outs on it somewhere, either mono or left right. Looks like that amp has the combo inputs meaning you can use XLR, TRS or just A TS which wouldn't be balanced but for a short run that would be alright. In any case those are the connections that the output from your mixer needs to get into.

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Please post make and model of mixer.

The speaker cables will be easy, so let's get you in-putted first. If i recall you can use banana plugs on the amp and speakers. Those are available at radio shack along with plain wire and will be lots cheaper than buying premade cables with speak-on's and jacks installed.

You will love the PV900 amp. So will your speakers!

This is my mixer i bought several years ago. It doesnt have any TRS or Speakon out... o_O

http://www.acekaraoke.com/vocopro-da-x1 ... ancer.html

Get a cable with a RCA plug at one end and an TRS at the other end. The RCA for the out put from your mixer and the TRS plug it to your amp.

ps; I assume your amp have a TRS input.

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I can neither confirm nor deny ever having or knowing anything about nothing.... mrscott

Well your aren't going to TRS connectors on the other end since the mixer has no balanced outputs.  An RCA to 1/4" cord is all you need to get from mixer to amp.
http://www.musiciansfriend.com/product/ ... sku=333040
Connected from the "PRE" output to the 1/4" input on the amp.

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