Tag: QSC

Presonus Debuts a new line of Intelligent Speakers at the 2013 NAMM Show

Presonus has released an exciting new line of Live Sound Reinforcement Speakers that they are branding under their StudioLive flag.    These speakers all feature “Active Integration”   which is a proprietary networking system that allows all the components of your StudioLive Mixer and Speakers to communicate with each other.

ACTIVE INTEGRATION

Active Integration is a Wi-Fi based networking system for  communications, wireless networking, and control of the vast amounts of DSP found in a specialized custom chipset built into each speaker, resulting in a system that can easily detect, manipulate, and control each component of the system in the network enabling the room to be tuned and manipulated from one position.

The StudioLive Active Integration system includes more DSP power physically built into each speaker than a standalone rack mount speaker management system.  The included USB Wi-Fi LAN adapter enables wireless networking via a small USB dongle on each speaker.   This gives you an unprecedented amount of control over individual speakers through the network, which can be manipulated from anywhere in the room via a laptop, iPad, or iPhone and iPod touch for monitor controls.

StudioLive Room Control

SL Room Control  is speaker management software that allows you to interface directly with your entire system via a laptop or iOS device.    All you need to do is create a local area network using a wireless router and connect your StudioLive AI speakers with the included USB 2.0 Wi-Fi LAN adapter or onboard Ethercon connection.    You also connect your laptop or iPad  to the same Wi-Fi network and launch SL Room Control and your free to use a plethora of EQ and dynamic presets, RTA and SMAART applications as well as monitor temperature, set delay time and phase for your entire StudioLive AI speaker system.

The Speakers

Designed by David Gunness, formerly of EAW and Electro Voice, the SL series speakers sport a coaxial design.   This means the tweeters are set in the same axis occupying the same space.   In actuality the tweeters fire directly through the dust cap of the midrange drivers with the aid of an external wave guide.  Without getting too technical, the coaxial design of these speakers results in a homogenous wave pattern from the same source throughout the speakers frequency response.  Non coaxial, component based speakers have asymmetrical dispersion patterns that can result in varying phase anomalies dependent on the position of the observer.

StudioLive  18sAI

StudioLive 18sAI offers the benefits of Active Integration, including remote control—including wireless control—over output level, user-adjustable contours, and more and uses 32-bit floating point DSP for the variable crossover, dynamic limiting, and excursion limiting.

 StudioLive 312AI

A compact, powered, full-range, 3-way loudspeaker, StudioLive 312AI relies on a 12-inch ferrite woofer for low frequencies and a custom-designed, 8-inch coaxial speaker with a 1.75-inch titanium compression driver to reproduce the mid and high frequencies. These transducers are driven by a hefty 2,000W RMS of triamplified, Class D power.

 

StudioLive 315AI

The StudioLive 315AI is perfect for large venues and bands that need full-range speakers with plenty of low end. The StudioLive 315AI provides 3-way coverage, with a 15-inch speaker for low frequencies and a custom-designed, 8-inch coaxial speaker with a 1.75-inch titanium compression driver to reproduce the mid and high frequencies. These transducers are driven by a hefty 2,000W RMS of triamplified, Class D power.

 

StudioLive 328AI

A 3-way system that features dual 8-inch ferrite woofers and a coaxial 8-inch ferrite midrange speaker and 1.75-inch compression driver, the StudioLive 328AI delivers full-range, high-powered performance, yet is streamlined and compact. These transducers are driven by a hefty 2,000W RMS of quad-amplified, Class D power.

PRM1

To get the most out of your Presonus AI System you need to use an accurate reference microphone to measure the tonality of the room your tuning your system to.  The PRM1 can handle up to 132 dj SPL and has a linear frequency response 20Hz-20kHz, enabling you to take advantage of the RTA (real-time analyser) units and software like SMAART and Virtual StudioLive.

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Peak, Program, and Continuous Power Ratings: Get a Handle on Power Handling


QSC RMX1450 pro audio amplifier

Get a Handle on Power Handling

What do we mean by power rating? The short answer is  the amount of power a loudspeaker can handle without blowing, or the amount of power an amplifier can or potentially can produce.  In order to select the proper speakers for your show, event, or venue as well as the proper amplifier to push them, there are a few terms to consider.

Continuous Power Rating

Often referred to as RMS power rating, the continuous power rating is the level of electrical power that can be introduced continuously into an audio system.   The test is administered by supplying a continuous sine wave to an audio component for an extended period of time.

Program Power Rating

Program power ratings are based on tests designed to simulate the dynamic musical responses in a performance setting.  Program power ratings are typically twice the continuous power rating.

Peak Power Rating

Peak power ratings are the highest expected momentary power level a speaker can handle before blowing.  The peak power rating refers to very short instances of power, typically transients under 20ms.  Peak power ratings are typically, but not always, twice the program power rating, and four times the continuous power rating.

Some Other Audio Terms You Should Know

Sensitivity

Sensitivity is a measurement of the ability a speaker has to convert supplied power from an amplifier into sound waves.  The test is administered by measuring the relative volume of sound measured in Decibels using one watt of power at one meter.   Speakers with higher sensitivity ratings are much more efficient transducers.

Impedance

Impedance is a measurement of the resistance the audio signal is experiencing through the audio system by way of the materials it is traveling though.   Measured in Ohms the signals power will behave differently under different impedance loads.   It is very important that you  are sure of the impedance of your speakers and closely match them to the correct power rating of your amplifier.

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