Pioneer DJ DM-40BT Blue Tooth Powered Speakers Demo Review BY Ellaskins

0:00 These are the DM40BT from Pioneer DJ

Alright guys, these are the DM40BT from Pioneer DJ. Now they are small compact speakers and they're powered. Well actually, they are and they're not. Now, that may be very confusing but I will explain. By the way, the track I'm using is by PSY and it's entitled After The Rain from Hospital Records so I will put a link in the description to Hospital Records and again, a big thank you to them for letting me use their music in my videos. So, without further ado, the drop. Okay, now again, when you do a speaker review Online and it always makes me laugh you can't all right so why am I doing a speaker review and playing the music and saying you can't well of course if you think about it the microphone is picking up the sound so you're never going to get the true sound until you hear the speakers yourself so i'm going to put that volume down now these are powered but they're not

And again, that is very confusing. So why am I saying they're powered but they're not? Well, they are powered because that one is, but they're not powered because that one isn't. So how does that work? Now, first of all, to not go into sort of the technical jargon, but you have active and you have passive. So a passive speaker system is something that needs an amplifier. to power it an external amp whereas an active system has the amplification inside so what we've actually got here uh with the 40 we've got the active system in this cab now the active system the amplifiers are there for the two speakers so there's an amplifier in here that will of course power this speaker and then The amplifier or amplifiers will also in turn power this speaker. So generally what you have is when you have a passive system, you will go from your music source, for example here the XZ, then you will go, the audio signal will go into an amplifier that will amplify that sound and then you'll have your speaker cables going into your passive speakers that will then give you the sound from the speakers.

2:28 Hollow sound, cable positive, amplifiers both

So in a way that's sort of what we've got here. We've actually got two things going on. We've got active and we've got passive because we have our music source, we have the sound from the music source going into our active speaker and then we've got a passive speaker over here that's taking just the signal, okay, the signal from here, the amplified signal Via these cables into the speaker which will then produce the audio. Now I hope I haven't confused you here but some passive speakers, sorry I'll start again, some active speakers will have amplifiers in both of them so there's an amp in speaker A and there's an amp in speaker B whereas with the 40s you don't have amplifiers in both of them. Now I know I've waffled on a little bit

But what I've tried to do is explain it in such great detail that someone of the age of five will go, I get it. So let's first of all have a look at the speaker that doesn't have an amplifier in it. So there you go. So what we've got is we've got two basic cables going into the input. Now hopefully you can see this but one of the cables has got like a red line on it. Now the reason they've done that... It's because what you don't want to do is you don't want to have one cable go from say the positive and then send that cable to the negative on the other speaker, and then vice versa with the other cable. Because what will happen is you're reversing the polarity and without going into technical jargon, what happens is you get a hollow sound. It's almost as though the sound is there.

4:53 In one plug, you've got a 50-50% chance of getting it right and wrong

But there's no bass, it's like this echo, not even echoey, it's very hollow. What's happening is as one speaker is pushing out, the other one's pulling back in. So they're not working in tandem, they're doing the opposite which will give you that hollow sound. So it's imperative, it's so important to make sure that if you do have one of the cables going from the positive, that same cable will go to the positive on the other speaker. And then likewise with the other cable. As soon as you put one in from positive to positive, then you can't go wrong with the other one because there's only one place from one speaker to go into the other place of the other speaker. So again, it's not very difficult but if you do make that mistake, in other words, if you just randomly put them...

In one plug, you've got a 50-50% chance of getting it right and wrong. So let's have a look now at the other speaker. Now again, straight away I can feel a bit of a difference in weight. There's going to be a lot more going on in here. This is, again, hold on, let me just bring the camera a little bit closer. Hold on, let's do that. Okay, so in this we have... We have our power in, on and off. We have the output again for the input of the other speaker and also we have RCA in and we have mini jack in as well. Now these speakers are also Bluetooth okay so that's quite a nice feature because what it means is that you could just like connect them to your phone and start playing funky tunes. Simple. Okay so what the system comes with is

It comes with an RCA cable to mini jack. Now that's the sort of cable that you'd put say on a relatively old school iPhone, your mini jack plug and I've got one of those now here on some headphones. So that's the sort of plug you'll have at one end which you can plug into the one speaker, the left speaker. And then on the other end of that cable you have your RCA cables which are, sorry, excuse me, runny nose, which are these. So that's it. Now what I've done is I've gone from the master out to the input of said speaker. Also we've got here, we've got a little volume control so we can turn it up and down. So if I, hold on, oh the track's finished. Let's go back, press it again.

7:10 Spent a fortune on my speakers and it just doesn't sound right

And actually they are quite loud, for the size they are very, very loud. Alright, so at the moment I've got them on the bed and they're relatively close to me. Now a system like this is known as, they're known as bookshelf speakers and also near field. And the reason they're called near field is they do need to be relatively close to you. Spent a fortune on my speakers and it just doesn't sound right. And then after a bit of a conversation I've asked them, well where have you got them positioned? Oh well they're on the shelf or they're on the walls. Well the thing is with near field they do need to be quite close to you and also they need to be directed towards your ears. So in an optimum environment what I would do is I would have this speaker about there. Okay so it's...

...quite close to me, and also it's facing me. And then the same with that speaker, I would have it very close to me. So by definition, the closer the system is to you, the less volume you have to have out of that speaker, which means the more efficient it will be, also in turn means you'll get better quality of sound. Make sense? If they're far away, you've got to turn them up, and then by turning them up... You're not going to get a good sound and also by turning them up, again if we go into slightly more technical details here, the more that speaker is moving, the less precise sound you will get from that speaker because as the bass driver moves out, it can only produce what sound has been made while it's being pushed out.

Is leaving the magnets now again slightly more technical but i don't want to go into details there so there you go anyway okay so again with the system you get the cable you get your um of course your power cable you'll also get your uh rca to mini jack all right so here we go i mean red i want to say relatively they are really nicely made also you get um eight of these Cushion pads here, so stick them on the bottom of the speaker. So there you go, the DM40BT from Pioneer DJ. So if you are on a budget and you want something that's just got that nice sound that's not going to break the bank, then go and check them out. I will put a link in the description to the Pioneer DJ website but of course check out local stores near you. Practice and enjoy. Thank you.

This transcript was produced automatically from the audio of the video and may contain mistakes.