Posts Tagged ‘active speakers’

Yamaha DBR12 active speakers

10/08/2016 Leave a comment

A couple of days back, at a friends bar, I got to see these babies in action. I have always wondered about the Yamaha DBR Series and I was not disappointed. My friends bar had about 4 of these DBR12s in the bar and one DBR10 outside the bar. I have read online that these active speakers can handle a peak of 1000 watts, and like the DSR and DXR series, they 2-way, bi-amped powered speakers, bass-reflex type. As far as the low-frequency driver is concerned, it comes equipped with a 12″ cone, a 2″ voice coil and a ferrite magnet. Since it only weighs about 15kg, just make sure that you have good mounting holes and you will be fine.

There were some times when certain songs were played, I was sure that there was a subwoofer somewhere but there was not at all. It was solely these speakers and nothing else. Looks like I have to pay these speakers some serious consideration soon because they just rock!


JBL EON15P-1 powered speakers and their internals

21/07/2015 Leave a comment

About a month or so ago, after my wife and I had finished attending Mass, I saw an event happening in an open field near the church. I saw that the event company had used a few of these powered JBL EON-series speakers for their event. What got to me was the fact that they were using about 8 of them, all on tripods, for their event. Hold on, I told myself…the event area is not that big. Why use 8 speakers? In any case, I went back home and when I did, I did some reasearch on these speakers.

I found out that the power to these speakers was pretty low for a powered speaker, according to this specification sheet from JBL. 130 watts low frequency and 50 watts hi-frequency (bi-amplified) is what I found out that they could handle. And they weigh about 21 kgs. Not only that, the 15″ woofer with Differential Drive (whatever that is) only has a 2″ voicecoil. But then again, looking at the low wattage the internal amplifier puts out, I suppose that that is all it deserves. In any case, while searching for more info on this, I reached this website for a company in the UK named A & J Audio Repair Shop and got a shock when I saw the interior of the speakers.


Look at this. It was a total shocker. I have seen unknown brands from China with better designed speakers but coming from an established player like JBL, I was really disappointed. First of all, check out where the toroidal transformer is located. Also, check out the amp which is part of that circuit board. These pics from A & J Audio’s site…can you believe it? This is the standard coming from JBL! Now I know why these speakers are shunned. You can see so many of them on Craigslist and the like.

So in a nutshell, this post goes to warn others who are looking at this model. Read this, read A & J Audio’s website and you make the decision. I already made mine!

Delta Audio powered speaker

11/05/2015 1 comment

A couple of weeks back, while I was attending an AGM, the sound company that provided the audio were using these Delta Audio speakers. They really sounded horrible and there was this low buzz emanating from the speaker. I have a funny feeling that they did not ground them properly or these active speakers were reaching the end of their shelf life. No matter what, it was causing me a headache…that low buzz and the accompanying hum that went with it.

A bit of advice to sound companies…have pride in your job and how you do it. A hum and buzz is a definite no-no when you are providing sound for an AGM. Also, test your equipment before bringing them down to ensure that they are in great condition. This company also had a problem with the wireless microphones, which sounded very crackly. So I will say it again…be professional.

AC and XLR cable combo for active speakers

28/04/2015 Leave a comment

I saw this cable being sold on Musician’s Friend and I was asking myself…why do they not have something like this sold in Singapore? This is not the first time when I wished that I lived in the USA. So many things to get down there and much cheaper than getting it in boring and expensive Singapore. I tell you, if I had powered speakers, this would be the best thing to have. Imagine…just having one toll of cable per speaker, with AC and signal in one combo. But then again, some may say that AC cables and XLR cables are not supposed to run parallel to each other so I suppose that is why they do not sell it here. I don’t know…I am only making a wild guess as to why. I have seen some setups when powered speakers were used. The poor crew had to lay the power cable to each speaker first. After that, it was followed by the very long XLR cable from the mixer to the powered speaker. Don’t you agree that a cable like this will help to solve lots of headaches? I certainly think so!

Categories: etcetera Tags: , ,

Yamaha DSR112 powered speakers

24/04/2015 Leave a comment

I am seriously thinking of getting myself a pair of these Yamaha DSR112 cabinets to beef up my sound arsenal. Just a few days back, when I brought my trusty Yamaha Stagepas 500 down for a gig, I noticed that it could have been louder. The “oomph” I wanted it to give just was not there. But to be honest, this was for a DJ party and you know how loud DJ parties can get. Anyway, I told myself, gotta get myself a new pair of speakers to handle the bigger events. And my mind fell on these DSR112 active units.

Now. I must say that I am a bit hesitant to pull the trigger on these babies. The reason is that for powered speakers, you need to have two cables per speaker…one is an AC power cable and the other, an XLR balanced cable. You need to have some long power cables should you deploy in a place where there is no electricity outlet to power your speakers. Secondly, instead of speaker cables, you need to have very long XLR cables to send the signal from your mixer to the speakers. I feel one might need about 50 metres per speaker, giving me about 100 metres in total. That is the reason holding me back. But the when I think of passive speakers, I have to carry one mother of an amplifier and long speaker cables. The long speaker cables, that I have. I have lots left over after many an installation and they will all go to rot if I buy powered speakers.

But the thing I like about these powered speakers is that all I need to go down to a gig is with two flightcases…one to hold the speakers and the necessary cables and the other flightcase, a small one, to hold the mixer and the rest of the cables. I might have to buy some power extension reels for the powered speakers and that takes up space when I want to travel and keep my inventory as small as possible when I do so. So there you go. Yet another spanner in the works as I contemplate.

As for these Yamaha DSR112s, you can read up about their specs here. Let us just say the thing that is seriously making me consider them is the fact that the woofers use 3″ voice-coils and that they are able to put forth a peak of 1500 watts. That is peak my friends, not RMS.

As they say…decisions, decisions


17/11/2014 Leave a comment

Yesterday evening, while waiting for my wife to finish her shopping, I walked around this shopping centre and I saw an event company using these two powered JBL PRX712s for a roadshow of sorts. The event was not using the full power these bad boys could handle. The music was rather soft and they were playing music that I personally would not have played. So while waiting, I did a check on these speakers and this is what I found out about them.

These powered PA speakers are no slouches. They can dish out 1500 watts power. Not bad for a speaker this size. Amplification-wise,  Class D is what is used. No biggie. Lots of manufacturers use this amplification nowadays. The speaker components are  a 12″ “Differential Drive” (what in the bloody hell is that?) woofer and a 1.5″ neodymium compression driver. The ones I saw were mounted on tripods. It seems that one can fly and floor,them, or they can be used as a monitor wedge. These speakers have DSP that provides EQ, protection, input-sensitivity adjustment, crossover functionality, dynamic limiting, and component optimization. Not bad. In short, here are the features, I got from JBL:

  • 135 dB peak SPL
  • 12″ Differential Drive® low-frequency driver for low-distortion and higher SPL
  • 1.5″ diameter next generation JBL neodymium compression driver
  • JBL designed waveguide for accurate coverage
  • Efficient Class-D amplifier technology
  • Optimized EQ for monitor or front-of-house applications
  • DSP input section, crossover, dynamic limiting, component optimization, selectable system EQ
  • Line level and direct microphone input capability
  • Professional XLR-1/4″ combination inputs, RCA inputs, and XLR loop-through
  • Multi-angle enclosure for main PA or floor monitor applications
  • Integrated 36 mm pole mount socket with angle down tilt
  • Injection molded handle with backing cup for easy transport
  • Integrated M10 suspension points for easy setup
  • Lightweight poplar plywood cabinets made structurally sound with tongue and groove joints and protected by JBL’s tour proven DuraFlex™finish.
  • Cloth backed, dent-resistant 16 gauge steel grilles

One thing I know about JBL speakers and that they are not cheap…not cheap at all. Maybe a better word to use will be inexpensive. I know you can get more bang for buck with Yamaha DSR or DXR line, that can take these speakers on with no issues. But I must say that this is the first time I have seen the PRX line used in a roadshow, instead of the many fake NEXO PS15s out there

Categories: etcetera Tags: , , , ,

Yamaha MS400 active speakers

07/10/2014 Leave a comment

I was at a pub that my friend was spinning at on Saturday and I notice two of these rather odd-looking Yamaha MS400 speakers fastened to the ceiling behind him. When I saw them, my interest was piqued because I had never seen that model from Yamaha before. I then found out that these babies came out in 2001 thereabouts. When I got back home, I did some reading up on these speakers from Yamaha (this model has since been discontinued) and found out that these speakers were very popular. So what about them? The MS400 is a 2-way speaker system that delivers high-quality, high-powered sound in a lightweight, easy to carry and setup unit. Each unit is equipped with an internal bi-amplified power system that delivers a total of 400 watts (LF/300W, HF/100W) to the 15″ low and 2″ high frequency drivers. Each unit is also equipped with a built-in mixer that supplies independent Mic and Line inputs. A variety of setups are possible since the MS400 is flyable, stackable and pole mountable. It can even be used as a floor monitor when laid on its side.

Me thinks that this was the precursor of the popular MSR400 speakers. But the MSR400s come with a 12″ woofer whereas these come with 15″ woofers. The highs are supplied by a 2″ titanium diaphragm compression driver. It’s sad that Yamaha does not make these anymore. If they did, I am pretty sure I would have ended up with a pair of these at least!

Categories: etcetera Tags: , ,