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We bought 2x Mackie speakers to be used as part of our live music PA system setup, we love them so much that we are now considering buying some more for an even bigger PA system setup.
About the speakers : they are active speakers, which means they have their own amps built in and you won't have to buy another one to power them. This cuts down on gear, as lugging about 2 speakers is bad enough as it is without having an extra amp to carry around too. However as they are not huge speakers they are not too heavy to carry around, i can comfortably carry one at a time and some of the men can manage to carry two.
The sound produced by the speakers is excellent. They sound crisp and clear even on high volume levels. We recently put our system on at an high volume at a festival gig, and even when at a really high volume they sounded great.
We recently used the speakers without our usual sub woofers that make up our full PA system, at an outdoor event, we were surprised how well the sound actually travelled and how clear it was from even way up the street. If you're after quality professional speakers, I would definitely recommend buying some of these.
Back a few years ago I used to be a mobile DJ and for this you needed some loud speakers, nowadays I only DJ in clubs however I still host events and still use the Mackie speakers from gig to gig and I currently own 4 of these speakers.
So what is the Mackie SRM 450? Purely and simply it is an active loudspeaker this means that it is a speaker for PA events so this might be conferences, mobile discos, outside events and the active thing means that it has a built in amplifier it is self powered so you don't need to bring another amplifier to run it so this means that you are cutting down on gear which you are bringing in and out of an event.
Lets look at the build of the speaker first of all on the front it has a bass bin and tweeter for the high frequency and also an LED which indicates if the speaker is working which is great for example if you are setting up a disco and you have no sound coming through you will be able to isolate the problem quicker and find out if it is the speaker or another part of your equipment. On the back of the speaker is a heat grill which I must warn you can get quite hot! But also there are inputs and outputs the inputs are a socket for the power because there is an amplifier inside each speaker needs to be powered separately and also an XLR input for connecting up to your mixer. As-well as that there is an output so you can send the signal (music) through the speaker and out to another active speaker or maybe a sub woofer. Whilst we are on about the sub woofer on the back of the mackie srm 450 there is a button which says low cut and this will cut most of the bass to the speaker so that the sub can do its job. (I hope I am not being too technical with this review). Finally on the back of the speaker is another led which flashes when it is receiving a signal and a volume control so you can control the output of the speaker.
So then we come to the quality of the speaker, I must say that I have been a dj for many years and heard a lot of different speakers and owned many different speakers also and this has to be the best the clarity from the speaker is unbelievable and the amount of bass that will come from this is a lot - I could do a disco for 500 people with 2 speakers easily and they wouldn't be pushed. Another good feature about the Mackie is that it has a cut off feature and although this might not be good when you are halfway through a gig if you are pushing too much music through and the speaker cant cope it will cut out saving you money from fixing the speaker.
Now we come to the bad points about the speaker and to be honest I cant think of one! Although when using them I have sometimes blown the diaphragm in them which cuts out the high frequency and although this is annoying it is not a major disaster as you can order a new one and fit it yourself. And this cost about £40.
For a set of these speakers it will cost you around £400 each or a pair for £700 when I bought them a paid was £1200 since I have bought these speakers I have never looked back and if you are looking for a reliable set of loudspeakers I would reccomend these.