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RCF NX L44-A-SUB 8004 Sound Package Used, Second hand

Ref. code: 1.01.337

NX L44-A

Active 2-Way Array

With the NX L44-A, RCF has provided a unique and powerful two-way line source, with the sound delivered from three 10'' neodymium woofers and a 1.4'' driver with 3 voice coil on a asymmetrical waveguide. All are perfectly tuned to deliver remarkably uniform coverage and an extended frequency range. Precision controlled by an on-board DSP and driven by a twochannel digital amp, the NX L44-A delivers very natural sounding response and high SPL for professional live sound reinforcement. The horn's design is asymmetrical so it projects sound energy with great accuracy, thereby avoiding undesired reflections. The enclosure always remains vertical - it does not have to be tilted or aimed in any way that would adversely affect its stability.

Main Features
  • Digital bi-amped amplifier with 1400 Watt peak power
  • 90° x 30° directivity (+5°, -25°)
  • 3 x 10'' neo woofer
  • 1.4'' compression neo driver, 3.0 voice coil with a waveguide
  • DSP Processing with optimized phase response
  • Scalable
  • Easy to fly and install with built-in rigging points
Main Applications  
  • Portable PA
  • Live sound
  • Performance venues
  • Houses of worship
  • Rental
  • Live Clubs

SUB 8004-AS

Active Subwoofer

The SUB 8004-AS is one of the most powerful 18? subwoofers in pro-sound category.
Featuring a high power, hypervented 18? woofer, with 4 inside/outside voice coils, this cabinet is designed to deliver a serious amount of low frequency. It is a direct radiating, high output, large-format sub woofer system proven in complementing high efficiency, full-range loudspeakers.
SUB 8004-AS has been designed to extract the greatest efficiency from every part of the system, resulting in an effortless reproduction of low frequency transient response. As a self-powered system, the transducers, amplification and DSP control electronics of the SUB 8004-AS are designed to optimize performance and maximize its power.
The SUB 8004-AS 's efficiently tuned cabinet houses two RCF Precision backvented, long-excursion, new high power 18 inch cone drivers, providing a fast and controlled reproduction of the bass frequency range. Featuring a 4 inside/outside voice coil to minimize power compression and extend the life of this product.
The drivers have also been engineered for extreme efficiency, using highgauss ferrite magnets for the most powerful magnetic field strength. High magnetic field strength increases the driver's sensitivity, which yields greater output, while keeping heat dissipation requirements within operational tolerances.
Powered by a 1250W digital amplifier module, the SUB 8004-AS can perform in the most demanding situations. The input board includes volume control, deep/punch switch, high pass switch, phase switch, cardioid, time delay. An easy to reach delay knob on the back allows to set the overall delay of the speaker, in meters, according to its application. 3 status LEDs, Power / Signal / Status are provided for monitoring the system
The amplifier features a solid mechanical aluminium structure which not only stabilize the amplifier during transportation but also assist in the heat dissipation and, with DSP control electronics and power supply, is integrated into a single, field-replaceable module mounted in the rear of the cabinet. The cabinet is constructed of multi-ply hardwood and coated with a textured black finish. Integral metal grilles lined with acoustical black mesh protect the cone drivers. Integrated mechanics are for multiple configuration with HDL 20-A.

Main Features
  • 2500 Watt Peak, 1250 Wat RMS
  • 136 dB max SPL
  • 30 Hz - 120 Hz frequency response
  • 18? Woofer, 4.0 voice coil vented woofer
  • DSP controlled Input section with selectable presets
  • Delay control
  • Baltic birch tour grade cabinet
  • Compatible with NX L23-A (stacking)
  • Compatible with NX L24-A (stacking)
  • Multiple configurations with HDL 10-A and HDL 20-A
Main Applications  
  • Live sound
  • Rental
  • Portable PA, clubs, ballrooms, live theatre
  • House of worship
  • Theme parks
  • Music playback and sound reinforcement in small and mid-size venues
  • Corporate A/V professionals and sound system hire companies

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Used RCF


RCF S.p.A. is a widely recognized Italian manufacturer of high performance audio products including power amplifiers, loudspeakers, digital mixers and digital signal processors (DSP).
RCF is an Italian audio products manufacturer founded in 1949. The first products sold were microphones and electroacoustic transducers (loudspeakers).
In the late ’60, concert sound was going electric, and many loudspeaker pioneers were searching for high-powered devices to use in their designs.
RCF was one of the first European OEM suppliers for international brands, thanks to the experience built on high power transducers.
After few years, thanks to the in-depth know-how in loudspeaker technology, RCF begin to develop and produce sound reinforcement systems under the same brand.
The introduction of the ART Series, in 1996, has established RCF among the few global manufacturers of active loudspeakers.
The TT+ High Definition - Touring and Theater series equipped with DSP, introduced in 2004, and the RDNet Networked Management technology, let RCF a full recognition in the professional audio market.
Since 2017, all DSP active speakers incorporate FiRPHASE technology, which allows achieving a 0° linear phase playback.
RCF is the first audio manufacturer to have a complete catalogue of 0° phase-compatible sound systems including line arrays.
 

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Active: Powered. An active crossover is electrically powered and divides the line-level signal prior to amplification. An active speaker includes an active crossover and built-in amplifier.

Actuality: Audio from an announcer speaking.

Amplifier: A component that increases the gain or level of an audio signal.

Balanced Input: A connection with three conductors: two identical signal conductors that are 180 degrees out of phase with each other, and one ground. This type of connection is very resistant to line noise.

Bandpass: A two-part filter that cuts both higher and lower frequencies around a center band. A bandpass enclosure cuts high frequencies by acoustic cancellation and low frequencies by natural physical limitations on bass response.

Bandwidth: In audio, the range of frequencies a device operates within. In video, the range of frequencies passed from the input to the output. Bandwidth can also refer to the transmission capacity of an electronic communications device or system the speed of data transfer,is very important when planning a meeting for the attendees to stay connected.

Bass: Low frequencies those below approximately 200 Hz.

Bi-Wiring: A method of connecting an amplifier or receiver to a speaker in which separate wires are run between the amp and the woofer and the amp and the tweeter.

Boost: To increase, make louder or brighter opposite of attenuate.

Bridging: Combining two channels of an amplifier to make one channel that more powerful. One channel amplifies the positive portion of an audio signal and the other channel amplifies the negative portion, which are then combined at the output.

CD: Compact Disc. Ubiquitous digital audio format. Uses 16-bit/44.1-kHz sampling rate PCM digital signal to encode roughly 74 or 80 minutes of two- channel, full-range audio onto a 5-inch disc.

CD-R: Recordable Compact Disc.

CD-RW: Rewritable Compact Disc.

Channel: In components and systems, a channel is a separate signal path. A four-channel amplifier has at least four separate inputs and four separate outputs.

Coloration: Any change in the character of sound (such as an overemphasis on certain tones) that reduces naturalness.

Crossover: A component that divides an audio signal into two or more ranges by frequency, sending, for example, low frequencies to one output and high frequencies to another. An active crossover is powered and divides the line-level audio signal prior to amplification. A passive crossover uses no external power supply and may be used either at line level or, more commonly, at speaker level to divide the signal after amplification and send the low frequencies to the woofer and the high frequencies to the tweeter.

Crossover Frequency: The frequency at which an audio signal is divided. 80 Hz is a typical subwoofer crossover point and is the recommended crossover point in theatrical and home THX systems. Frequencies below 80 Hz are sent to the subwoofer signals above 80 Hz are sent to the main speakers.

Cut: To reduce, lower opposite of boost.

Decibel (dB): A logarithmic measurement unit that describes a sound`s relative loudness, though it can also be used to describe the relative difference between two power levels. A decibel is one tenth of a Bel. In sound, decibels generally measure a scale from 0 (the threshold of hearing) to 120-140 dB (the threshold of pain). A 3dB difference equates to a doubling of power. A 10dB difference is required to double the subjective volume. A 1dB difference over a broad frequency range is noticeable to most people, while a 0.2dB difference can affect the subjective impression of a sound.

Delay: The time difference between a sonic event and its perception at the listening position (sound traveling through space is delayed according to the distance it travels). People perceive spaciousness by the delay between the arrival of direct and reflected sound (larger spaces cause longer delays.

Diaphragm: The part of a dynamic loudspeaker attached to the voice coil that produces sound. It usually has the shape of a cone or dome.

Diffusion: In audio, the scattering of sound waves, reducing the sense of localization. In video, the scattering of light waves, reducing hot spotting, as in a diffusion screen.

Digital Audio Server: Essentially a hard drive, a digital audio server stores compressed audio files (like MP3 or WMA). Most include the processing to make the files, and all have the ability to play them back.

Direct-Stream Digital: A format for encoding high-resolution audio signals. It uses a 1-bit encoder with a sampling rate of 2,822,400 samples per second (verses 44,100 for CD). Used to encode six high-resolution channels on SACD.

Dispersion: The spread of sound over a wide area.

Distortion: Any undesired change in an audio signal between input and the output.

DNR: Dynamic Noise Reduction. A signal-processing circuit that attempts to reduce the level of high-frequency noise. Unlike Dolby NR, DNR doesn't require preprocessing during recording.

Dolby B: A noise-reduction system that increases the level of high frequencies during recording and decreases them during playback.

Dolby C: An improvement on Dolby B that provides about twice as much noise reduction.

Dolby Digital: An encoding system that digitally compresses up to 5.1 discrete channels of audio (left front, center, right front, left surround, right surround, and LFE) into a single bitstream, which can be recorded onto a DVD, HDTV broadcast, or other form of digital media. When RF-modulated, it was included on some laser discs, which requires an RF-demodulator before the signal can be decoded. Five channels are full-range the .1 channel is a band-limited LFE track. A Dolby Digital processor (found in most new receivers, preamps, and some DVD players) can decode this signal back into the 5.1 separate channels. Most films since 1992`s Batman Returns have been recorded in a 5.1 digital format, though a number of films before that had 6-channel analog tracks that have been remastered into 5.1.

Dolby EX: An enhancement to Dolby Digital that adds a surround back channel to 5.1 soundtracks. The sixth channel is matrixed from the left and right surround channels. Often referred to as 6.1. Sometimes referred to as 7.1 if the system uses two surround back speakers, even though both speakers reproduce the same signal. Software is backwards-compatible with 5.1 systems, but requires an EX or 6.1 processor to obtain additional benefit.

Dolby Pro Logic: An enhancement of the Dolby Surround decoding process. Pro Logic decoders derive left, center, right, and a mono surround channel from two-channel Dolby Surround encoded material via matrix techniques.

Dolby Pro Logic II: An enhanced version of Pro Logic. Adds improved decoding for two-channel, non-encoded soundtracks and music.

Driver: A speaker without an enclosure also refers to the active element of a speaker system that creates compressions and rarefactions in the air.

DSP: Digital Signal Processing. Manipulating an audio signal digitally to create various possible effects at the output. Often refers to artificially generated surround effects derived from and applied to two-channel sources.

DTS: Digital Theater Systems. A digital sound recording format, originally developed for theatrical film soundtracks, starting with Jurassic Park. Records 5.1 discrete channels of audio onto a handful of laser discs, CDs, and DVDs. Requires a player with DTS output connected to a DTS processor.

DTS ES: An enhanced version of the 5.1 DTS system. Like Dolby's Surround EX, a sixth channel is added. In some cases (DTS ES Discrete), the sixth channel is discrete. Software is backwards-compatible with 5.1 systems, but requires an ES or 6.1 processor to obtain additional benefit. Neo: 6 is a subset of DTS ES that creates 6.1 from material with fewer original channels.

Dynamic Range: The difference between the lowest and the highest levels in audio, it&'s often expressed in decibels. In video, it's listed as the contrast ratio.


Professional used lighting equipment.| Professional second hand lighting equipment.| Professional pre owned lighting equipment.
Professional used audio equipment.| Professional second hand audio equipment.| Professional pre owned audio equipment.
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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