Karaoke Forums

Hi,

My system is not as loud as I would like it to be and I do not want to replace my current mixer/amp or speakers. I have a 20 by 30 foot great room and the system is barely loud enough for this room. When I turn up the volume past a certain point the sound goes flat and starts emitting a squealing sound.

I would like to add at least an additional 100W per speaker.

How can I boost this power for improved volume with buying another amp?

Please review the equipment I have below and make a suggestion.

Here is the mixing amp that I have......
Acesonic AM-825 600 Watt Karaoke Mixing Amplifier with USB

http://www.acekaraoke.com/acesonic-am-8 ... r-usb.html

Here are the speakers that I have........
Better Music Builder CS-450V - 450 Watts Professional Speakers

Is there some adjustment that I can make to my existing amp? Can I add a "booster" amp? What about adding 2 powered speakers like the Vocopro PV-802. Would this work properly with the existing amp that I have? Can I trade in my existing amp for a stronger one?

Please advise.

Thanks
Dave

Those speakers will fill that room loud and clearly. Your mixer amp is spec'd at a higher output than what I am using to drive the same speakers. Yours is spec'd at 300W x 300W @ 8ohm which these speakers are. I am powering the same speakers with a crown XLS202 which is only rated at 200W x 200W @ 8ohm, and I assure you it is plenty loud for a room of that size. I am using a sub though. I noticed that your mixer/amp has a sub output. You may want to try adding a powered sub. It gives the really low lows and extra punch that I would prefer not to come out of the same speakers as my vocals.

As I stated, you should have enough power according to specs to run those speakers plenty loud. I have not used Acesonic mixing amps, so I can't tell you how clear it will sound.

What are you using as your player or input device. Many players have a volume control like a tv. If they are low, the output will be low. My player max volume at 16, I have them on 10, it just seems to be a good level. If you are using a player or a PC, check the output volume, and adjust it up, if it isn't already.

What level are you turning your Music Master knob? Not near or over 75%? Once music master. Once the Music Master is turned up where you think it should be, what do you have the Music Low, Music Mid, and Music High set to on the music sound knobs on the left? What are you setting the Music Volume button set to? The blue knob on the bottom left. Getting a clean sound depends on how you use the Music Master knob, and the Music Volume knob in conjunction with each other. You may want to play with different combinations. I would start with about 60% on the Music Master, and then adjust the Music Volume knob and see how it sounds.

It appears that you could add a pair of powered speakers with the audio out.

Hope this helps,
Felix the KJ

Thanks Felix!

I am using a PC as the music source.

My Music Master knob begin to squeal at about 40%

The Music Low, Music Mid, and Music High set to 50%.

The Music Volume button is depressed for more volume. The blue knob on the bottom left is set to 50%.

I do have a powered sub attached. It gives rich bass....but didn't really add to the volume overall.

It seems that this system should really blast the 20x30 room...but it is just loud enough before it starts to squeal. (it does this with the mics off....so feedback isn't the issue)

Over the weekend I plan to try all the settings and cheak all the connections and try again.

Thanks again for your guidance!
DAve

If you read the specs of the amp I think you will find the answer to your question. The Amp is rated 300 X 2 peak @ 8 ohms. That's pretty much a wishful thinking spec. In reality you will see it is rated at 200 X 2 RMS @ 4 ohms. Using eight ohm speakers means your really only getting about 100 watts X 2. So going by the specs from the supplied link IMHO the system is just plain under powered. Don't get the term "Max" or "Peak" confused with real continuous power.

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Quickness of mind will deceive the eye

I don't think that is a volume button. I think it is a loudness button. If it is like loudness buttons on stuff I have had in the past, it is to boost the bass at lower volume levels. If you are playing the system loud, I believe this button should be in the OFF position. This on at loud volumes would make it sound bad I believe.

I think your mixing amp has something called a BBE button on it with a LED that should be lit when on, off when off. Note the position of that and test accordingly. When trying different music settings lower the high and low to about 40% as a starting point after you have tried the other things mentioned.

I think you are right in your approach to getting it sounding right with only music before you connect a mic and throw more variables into the mix.

Felix the KJ

To me, this has illustrated the pitfalls of buying "karaoke equipment". You have tried a typical setup like that, with 7" speakers, and it is somehow displeasing. Not surprising to me. I would not follow up with more of the same.

I recommend something like the Yamaha EMX312 powered mixer and a pair of BR15 speakers. Those are not quite enough for a big pro gig, but should be plenty of power for your great room. And they will have some real thump.

If you want an upgrade capable of putting out enough sound for a large party, spend more and get the Yamaha EMX512 and S115V speakers. That is some real power with excellent sound.

I made the mistake of buying some VocoPro and Acesonic stuff. It soon went away and I moved toward real pro audio equipment.

Had I listened to the people here, who recommended gear like I am recommending to you, I would have saved money. I ended up with a bunch of equipment I didn't want and can't sell at anywhere near what I paid for it.

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[color=#ffff55]Mickey J.[/color]
Alas for those who never sing, but die with all their music in them.
-- Oliver Wendell Holmes, Sr.

The amp he is using is not even pushing CLOSE to 200 watts per side, like London said it is closer to 100 watts per side at 8 ohms. The speakers being used should have an amp pushing at least 225-250 watts per speaker at 8 ohms to be really up to their efficiency - provided those are accurate specs.


You are not reading the specs correctly!


I have YET to use a 'professional/commercial' player that had a volume control on the output.
The amp speaker combo is not great. I'd add a nice powered sub to the system to really make those tops shine!

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LIKE Lonman on Facebook - Lonman Productions Karaoke & my main site via my profile!

Even at 100 watts per side, you should be getting adaquate volume for that room. You can fill up a room with "volume" with 10 watts/side. The power is going to dictate the efficiency, and thus quality, of that sound at higher volumes. Most home theater amps push 100 watts/channel, and of course a home theater system can fill up a 20x30 room with sound.

You may be mistaking feedback for a problem with your volume. A flat sound with squealing could be feedback your mic is picking up off your speakers at a certain volume. Try positioning the speakers so they are either in front of the mic or at least facing the same direction as the singer. If your mixer has a separate VOLUME and GAIN for the mic, you may want to try turning the GAIN down a little and the VOLUME up a little.

If that's not it, I would check to make sure the volume on your computer is all the way up - both the volume control on the top of your laptop and the volume control in the control panel-sound settings (and the volume control in your karaoke program). That could easily be the culprit of bad sound quality at higher volumes as well.

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C Mc
KJ, FL

I agree that the amp isn't putting out what it should. There is a local dive bar in the area, that is using those exact speakers with the exact mixing amp. It usually is mixed badly, but the speakers never humm or squeel. I believe they even sometimes run 4 of the same speakers on this mix/amp. He should at least be able to get the mix/amp to sound better, I have heard it working okay in person.

I am pretty sure this person is not looking to go pro. They just want it to sound good in a large room in their house. One would hope that for the $600 they spent, that it would work for home use. I am just trying to see if we could make it sound acceptable before comming to the conclusion the person doesn't want to hear, that they need a better amp.

Felix the Kj

I suspect the amp is not the problem. Those are terrible speakers. I have heard them in combo with the Acesonic setup, and they sound awful. People are getting ripped off all over the place -- a local guy here is saddled with those things after paying $2,000 for it, a crappy RSQ player, and a bad CDG library.

The amp doesn't have enough power to drive decent speakers. If he wanted to try something that might have a chance of working, buy a couple of MTX TP112. I bet they would sound a lot better than those BMBs.

But bottom line, that is overpriced, poor equipment. For what he no doubt paid, he could have the setup I suggested.

_________________
[color=#ffff55]Mickey J.[/color]
Alas for those who never sing, but die with all their music in them.
-- Oliver Wendell Holmes, Sr.