Archive

Posts Tagged ‘sound reinforcement’

Mackie 1202-VLZ3

02/03/2013 Leave a comment

I saw this guy selling this mixer second-hand on a forum for audio and I thought…why not. I am looking for a mixer and I like rotary-potentiometer meters because they do last longer and so this was a likely choice. The price being offered was pretty good too. I thought that I should get myself a serious mixer if I am going to get bigger, powered speakers and bigger, powered speakers are on my list of things to get. Specifications-wise:

  • New ultra-low noise VLZ3 design with highest possible headroom
  • 4 studio-grade XDR2™ Extended Dynamic Range mic preamps
  • 12 high-headroom line inputs
  • Advanced DC pulse transformer RF rejection
  • 2 Aux sends, level, pan and PFL solo on each channel
  • 2 stereo Aux returns + EFX to Monitor
  • 3-Band Active EQ (80Hz, 2.5kHz, 12kHz)
  • 18dB/oct. 75Hz Lo-Cut filter on Mic input channels
  • ALT 3/4 stereo bus for added versatility
  • Control Room/Phones source matrix
  • Rack-mountable design using optional rack ears
  • Sealed rotary controls to resist dust and grime
  • New Multi-Voltage power supply for worldwide use
  • Rugged steel chassis

Not too bad at all considering. Only thing I do not like is the fact that it uses 1/4″ TRS-balanced phone jacks for the main output. I would have preferred XLRs but then again, beggars cannot be choosers!

Bose 800 speakers

22/11/2012 3 comments

Some time ago, while I was a church attending Mass, I came across two of these old Bose 800 speakers installed in a multi-purpose foyer, supposedly to provide sound-reinforcement for masses held outside, or if the church was too full, audio could be piped in through those speakers. I was intrigued at first because I knew for a fact that this was the first generation of Bose’s 800-series speakers. The Bose 802s succeeded these older series, which were the Bose 800. These speakers were equipped with a wooden cabinet and the griss had these big BOSE letters on them, as can be seen in the picture. These Bose 800 speakers also came with their own active equalizer too, pictured below:

I do not know about the specifications of these speakers. I do know the Bose 802s could handle roughly 280 watts RMS of power. I am not too sure about these 1970s-era speakers. But I do know that for general speech and small-sized PA, these would have done nicely back then.

Behringer EUROLIVE B415DSP

11/10/2012 Leave a comment

I am looking for a pair of speakers that I can use for some small functions should my Yamaha Stagepas 500s ever get rented out at the same time. After comparing a few and looking at the price, I kinda settled on these Behringers. There is a lot of flak out there on Behringer products but I must say that some of the products I have used from them are of pretty decent quality. Plus, the price cannot be beat and if you, like me, are looking for a good pair of powered speakers that will not break the bank, these Behringers should be hot contenders. According to the Behringer website:

  • High-power 600-Watt 2-way PA sound reinforcement speaker system with integrated mixer for live and playback applications
  • State-of-the-art 24-bit digital signal processor for ultimate system control:
  • Digital crossover, phase and time correction for perfect driver alignment plus dual compressor/limiter for total system protection
  • Digital Noise gate, Low-cut filter, 2-band EQ, dynamic Contour filter for ultimate sound reproduction
  • 2 ULN Mic/Line inputs with individual Volume controls and Peak LEDs
  • Extremely powerful 15″ long-excursion driver provides incredibly deep bass and acoustic power
  • State-of-the-art 1.75″ titanium-diaphragm compression driver for exceptional high-frequency reproduction
  • Ultra-wide dispersion and large format exponential/conical horn with multi-cell aperture throat
  • Additional Line output enables linking of additional speaker systems
  • Versatile trapezoidal enclosure design allows different positioning:
  • – Stand mounting with 35-mm pole socket
  • – Tilts on its side for use as a floor monitor
  • Ergonomically shaped handles for easy carrying and setup
  • High-quality components and exceptionally rugged construction ensure long life

That is the Behringer sales pitch but I have been reading some reviews and it looks like there are a few good reviews on these speakers. Not too bad actually. Just get a small mixer to control the inputs, some long XLR wire and it looks like you are set!

Sound reinforcement does not have to be complicated

01/10/2012 Leave a comment

It is fairly easy to get started in the sound reinforcement business. You can start off by having a small system and offer services to event companies, tradeshows and the like. A small system does not have to be expensive. Take a look at the picture above. All it consists of are two Peavey dual 15″ speakers, a small Mackie mixer, a QSC power amplifier and what looks like an effects unit. Rack it up in a standard road rack and there you go. What would be ideal here in this picture, and would be required in some case would be a CD player and a graphic equalizer. But all this stuff is not super expensive and will perform well. I should know about this because I started off this way and I am still doing it, on a much smaller scale.

Bose L1 Basic

05/07/2012 Leave a comment

I have heard qute a few people swearing blind by these Bose L1’s that I decided to get a listen for myself as to how good they were. They were not too bad, considering that I was listening to them in a showroom. But I really wonder how they will perform in sound reinforcement applications. Bose claims on its website that this system is able to handle an audience of 500. Hmm.

According to Bose, this powered, vertical array of theirs has “24 drivers mounted in a vertical line array design produce a loss of only 3 dB in sound pressure level per doubling in distance.” There is also something they call ToneMatch, which are presets for microphones and instruments. There is also an integrated mixer with remote control. I have no idea why one would need a remote control for a sound-reinforcement system but Bose seems to think you need one. The B1 bass modules weigh about 26 kilograms and augment the vertical array.

Specifications-wise, they are available here but in a nutshell:

  • System Type – Self powered, two-way.
  • Frequency Response (+/-3 dB) – 40 Hz – 12 kHz
  • Frequency Range (-10 dB) – 32 Hz – 14 kHz
  • Maximum SPL @ 1 m – 115 dB SPL (121 dB SPL peak)
  • Crossover Frequency – 200 Hz (24 dB / octave)
  • System Power Rating – 500 W

Would I get it? I do not think I would. These things are pretty pricey and you can get better speakers for less coin. They sounded great in that showroom when I listened to them though…very good. But its a Bose, first and foremost. I personally would give it a miss

 

Yamaha MSR100

29/06/2012 Leave a comment

There are lots of powered-speaker manufacturers in the world and Yamaha is one of them. This MSR100 powered speaker, I had only just found out about it last weekend when I was providing audio at a wedding ceremony. The restaurant, where the wedding was held at, had these for monitors. I hooked it up to the AUX of the Mackie mixer that was installed in the pub and I must say that the sound coming out of this small wonder was simply rich. Not bad for a powered speaker that sports an 8″ woofer and a 1″ titanium diaphragm compression driver. The built-in amplifier delivers 100 watts of power and it could handle the restaurant with ease.

Yamaha’s website describes this unit:

A simple but effective mixer built into the rear of the unit provides 3 inputs with master EQ for sound control. The “Input 1” XLR connector accommodates almost any microphone or line input (with a -50dB/+4dB pad switch), while line sources can be connected to the “Input 2” and “Input 3” phone-jack connectors. Naturally, each input has its own level control, with a master level control for overall output. Two-band EQ gives you further control over the final sound. A convenient clip indicator alerts you if the input signal level is too high, so you can reduce levels to avoid distortion. For larger events the MSR100’s special link out jack can be used to connect multiple units for higher power and expanded coverage.

And its true. I was surprised and pleased at what this little speaker was capable of. Its capable of producing up to 112 dB SPL…not too shabby! It can be used as a FOH system for sound reinforcement or it can be used as a monitor speaker. A variety of mounting options allow pole mounting, ceiling suspension, or wall mounting so that makes it very versatile.

Yamaha, you have done it again!

Yamaha EMX 5014c powered mixer

19/06/2012 Leave a comment

I had the chance to use this mixer for an event a couple of days back. This mixer was powering a pair of Yamaha A12 loudspeakers. To be honest, there was nothing wrong with the mixer part of it. It just oozes Yamaha reliability and build. But what I was unhappy about was the power from the built-in power amplifier. Weak is all I could say. They just did not have the “oomph” that most sound reinforcement systems have. They say on the speaker (and it can be plainly seen here) that this thing is able to give 500 watts per channel but that is a myth. That is 500 watts peak. What this one is capable of giving is only about 200 watts. The amp on this mixer was clipping many times throughout the night. But then again, maybe it was also because of the fact that the speaker leads attached from this mixer to the speakers were pretty long…

Specs-wise, from the Yamaha website:

– AUX Sends: 3 (1 Pre, 1 assignable Pre/Post, 1 Effect)
– Phantom Power: 48V
– Graphic EQ: (ST out) 9-band (63, 125, 250, 500, 1k, 2k, 4k, 8k, 16kHz)
– Digital Effects: SPX digital multi-effector 24-bit AD/DA, 32-bit processor (24-bit AD/DA, 32-bit Internal Processing)
– Power Select Switch: 500W / 250W / 75W
– Metering: 2 x 12 segment LED
– YSProcessing: Yes (switchable)
– Stand-By Switch: Yes (ch 1-6)
– Foot Switch Option: Effect on/off
– Dimensions (W x H x D): 444mm x 155mm x 493mm (17 1/2″ x 6 1/8″ x 19 1/2″)
– Weight: 10.5 kg (23 lbs)

16 Effects:
– Reverb HallKaraoke Echo
– Reverb Hall 2Vocal Echo
– Reverb Room 1Chorus 1
– Reverb Room 2Chorus 2
– Reverb Stage 1Flanger
– Reverb Stage 2Phaser
– Reverb PlateAuto Wah
– Drum AmbianceDistortion

Maximum Output Power (1kHz, THD+N – (both channels driven)8 ohm load – 350W
– (both channels driven)4 ohm load – 500W

Not too shabby for the room that this was installed in (the audio system in a conference room) for speech and general meetings but for a dance party, it could not handle it. Oh well, beggars cannot be choosers and we had to live with it. But credit where credit is due, the sound was nice and clear!