DVA T4
A three-way active line array system, the DVA T4 has set new standards in the sound reinforcement industry since its 2007 market launch. Better yet, it has brought the benefits of real line array technology to a much wider range of users.
The DVA T4 is equipped with unique digital power amps that provide a total of 420W RMS. Driven by Digipro technology, their resolution is several-fold that of conventional digital amps. They render signals very accurately with this high-definition audio capability. It features DPP (Digital Power Processing) technology and a multiband compressor/limiter with separate response curves for each signal path. Its dynamic range is exceptionally wide.This innovative circuitry not only maximizes dynamic response, it also ensures signals are rendered accurately and uniformly even at threshold levels.
The 8? Neodymium-Woofer is equipped with a high power 2.5? voice coil to provide superior sound pressure level in a very compact size. The 6.5? Neodymium-Midrange speaker has a sealed basket to provide an optimized volume capacity including high sensitivity and superb sound reproduction. It also has a horn exit including phase plug for defined and linear sound emission.
The build in 1? Neodymium- Drivers are equipped with a 1.4? Mylar- Membrane which allow a very quick response and provide a linear frequency range at a surprisingly low weight. This driver was specially designed for the use with Line-Arrays. Its compact measurements allow very close proximity which is a main factor for minimum interference.
The DVA T4 Top is equipped with a constant directivity horn for the High and Mid section and offers a nominal coverage angle of 100°x15°. The CD-Horn provides high flexibility and a good natured attitude if, for instance, the Array is not aligned correctly.
The DVA uses apart from the formation of cylindrical waves (very much depending on the number of T4 elements), the vector summing of the individual horns. This means that with growing distance to the source (if set up is correct), the listener perceives more and more vector sums of the single elements.
The DVA T4 comes with precisely engineered flying hardware that, in combination with the extremely low weight, allows easy and fast setup of the whole system.
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Used dB Technologies
dBTechnologies (1990) is a brand owned by AEB Industriale s.r.l., an italian Company founded in 1974 in Bologna (Italy), which is part of the Pro Audio industry leader RCF Group, providing a strong know-how in the Professional Audio market.
Its recent story begins in 2004 when Arturo Vicari, CEO of AEB Industriale s.r.l., acquired RCF and founded RCF Group, an international holding leader in design, production and marketing of products, systems and solutions for the public and private sound reinforcement.
Over the years, thanks to a policy of considerable investments in R&D, design and manufacturing, dBTechnologies has gained substantial recognition for some groundbreaking technological innovations, as well as their inherent standards of quality.
In particular, dBTechnologies has been one of the industry’s forerunner in active speaker & digital amplifier technologies, while giving a major emphasis to details and design. A constant research on new materials and technologies, together with the ability to create unique design solutions, are the key ingredients for an ever-increasing market share and success.
Today AEB Industriale's Headquarters are located in Crespellano (Bologna) with a total area of over 10,000 square meters housing the legal and production core, the sales and administrative offices, the warehouses, and the Research & Development department where all dBTechnologies' products are designed and developed.
In 2019, the brand is distributed in more than 160 countries worldwide, providing installation companies, rental companies, sound designers and musicians with audio equipment and combining top-quality sound performance with a distinguishable Made in Italy design.
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Efficiency Rating: Level of sound output measured at a prescribed distance with a standard input power. Efficiency rating standard is 1 watt (2.83V at 8 ohms) at 1 meter over a specified frequency range and is measured in decibels.
Equalization: Loosely, any type of relative frequency adjustment. Specifically, the process of changing the frequency balance of an electrical signal to alter the acoustical output.
Equalizer: A component designed to alter the frequency balance of an audio signal. Equalizers may be graphic, parametric, or a combination of both.
Fade: A gradual increase in audio, i.e. a fade-up, or a gradual decrease in audio, i.e. a fade-down.
Feedback: The transmission of current or voltage from the output of a device back to the input, where it interacts with the input signal to modify operation of the device. Feedback is positive when it’s in phase with the input and negative when it’s out of phase.
FM: Frequency Modulated.
Frequency: The number of cycles (vibrations) per second. In audio, audible frequencies commonly range from 20 to 20,000 cycles per second (Hz). In video, frequency is used to define the image resolution. Low-frequency video images depict large objects or images. Higher frequencies depict smaller objects (finer details.
Frequency Response: A measure of what frequencies can be reproduced and how accurately they are reproduced. A measurement of 20 to 20,000 Hz, 3dB means those frequencies between 20 and 20,000 Hz can be reproduced no more than 3 dB above or below a reference frequency level.
Full-Range: A speaker designed to reproduce the full range (20 Hz to 20 kHz) of audio frequencies.
Gain: Increase in level or amplitude.
Gooseneck: This refers to a microphone with a flexible neck that is most frequently attached to a podium or lectern. It is designed to allow the speaker to raise or lower the microphone to a suitable height.
Graphic Equalizer: A type of equalizer with sliding controls that creates a pattern representing a graph of the frequency-response changes. Raising sliders boosts the affected frequencies lowering sliders cuts (attenuates) the affected frequencies.
HDCP: High-Bandwidth Digital Content Protection. Created by Intel, HDCP is used with HDTV signals over DVI and HDMI connections and on D-Theater D-VHS recordings to prevent unauthorized duplication of copyright material.
HDR: Hard-Drive Recorder. Device that uses a computer hard drive to store compressed digital audio and video signals.
High Pass: A filter that passes high frequencies, and attenuates low frequencies. Same as low cut.
Hz: Hertz or cycles per second. Something that repeats a cycle once each second moves at a rate of 1 Hz.
Incue/Inq/In-Point: These words all refer to the initial few seconds of audio signifying the beginning of the production.
Integrated Amplifier: A combination preamp and amplifier.
Impedance: A measure of the impediment to the flow of alternating current, measured in ohms at a given frequency. Larger numbers mean higher resistance to current flow.
KHz: Kilohertz or one thousand Hz.
Lavaliere: A small microphone that attaches to clothing, allowing the speaker to have a hands-free presentation.
Line Array: A group of speakers that have been arrayed or "built up" in the vertical or horizontal plane, which allow for a highly consistent sound field. A Line Array is perfect for medium to large audiences.
Line-Level (Low-Level): A level of electrical signals too low to make the average speaker move sufficiently. Amplifiers receive line-level signals and amplify them to speaker level.
lockout: The final words of a segment used to signify the production’s conclusion.
Low Pass: A filter that lets low frequencies go through but doesn’t let high frequencies go through. Same as high cut.
MHz: Megahertz, or 1 million Hz.
Midbass: The middle of the bass part of the frequency range, from approximately 50 to 100 Hz (upper bass would be from 100 to 200 Hz). Also used as a term for loudspeaker drivers designed to reproduce both bass and midrange frequencies.
Midrange: The middle of the audio frequency range. Also used as a term for loudspeaker drivers designed to reproduce this range.
Mixer: This is the unit in which audio signals are directed from. A mixer provides for both mic and line input combinations while allowing you to control one or more outputs.
MLP: Meridian Lossless Packing. Encoding format that is able to completely reconstruct the original signal at the receiving end. No information is lost or discarded, regardless of how trivial it might be. Used to encode six channels of high-resolution audio on DVD-A.
Mono: Monophonic sound. One channel.
MP3: MPEG-1 Audio Layer-3. Compression scheme used to transfer audio files via the Internet and store in portable players and digital audio servers.
Natural Sound (NATS): The nonverbal audio that occurs in a non-studio setting. NATS can be used to help characterize the setting.
Noise: An unwanted portion of a signal such as hiss, hum, whine, static, or buzzing.
Nonlinear Editing: Digital audio systems that allow for clips to be extracted without affecting the master recording.
Professional used lighting equipment.| Professional second hand lighting equipment.| Professional pre owned lighting equipment.
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Second hand audio gear. | Second hand lighting.
Pro audio equipment, second hand amplifiers, DJ, second hand sound systems, second hand Microphones, second hand Media Players.
Outdoor & Indoor LED screens for sale, LED mobile truck.
Light trussing, Gebrauchte Veranstaltungstechnik, used stage equipment Stage & Theatre lighting products.
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