Used, Second hand RCF TTS56-A Active Dual 21

ABOUT THE PRODUCT ABOUT THE MANUFACTURER GLOSSARY

TTS56-A

The TTS56-A is a high power, high output active subwoofer system that sets a new standard in the touring sound reinforcement.
The new 21" neodymium design represents the result of many years dedicated in pioneering new solutions for the transducers technology. The integration of the 6800 W, two channel digital amplification and the advanced digital processing set a new standard for distortion, noise and thermal efficiency.

Active Advantage

An active sound system means having the power amplifier on-board of the cabinet.
This brings some advantages:

Reduced setup time
Daisy chain signal and power connection of the entire system or by groups
No additional amplifier rack(s), saving space in the truck
The sound quality and performance are optimized to the individual components inside the speaker
The RDNet Networked Control can monitor each component of the system

Top End Electronics

The amplifier integrates a low-noise 32 bit DSP circuit, controlled through the RCF exclusive RDNet network to easily handle the soft clipping limiters, RMS limits, polarity, amplitude, timing and equalisation. All the settings, monitoring and advanced features are available inside the RDNet Networked Management software. The available control panel on the back adjusts input sensitivity, Low Cut, Xover, volume, bypass, delay and presets.

High Performance Hypervented Woofer

RCF manufactures these components to deliver the cleanest, punchiest, and undistorted low frequencies reproduction. The cone is composed of 30% carbon fibre, 20% fibreglass and 50% cellulose pulp. This particular chemical composition has been carefully developed to improve the robustness and rigidness of the cone avoiding any deformation that would result in a loss of efficiency. RCF engineers have developed a unique internal ventilation system with very low power compression. The cone is water resistant.

Cabinet

The RCF TT+ cabinets are made of high-quality birch plywood with weatherproof treatments, 4 reinforced rubber feets, nylon side protection accessories and 6 handles. The back of the cabinet is provided with two steel bars for fork-lift transportation that preserves the cabinet from being scratched. The subs are stackable and light-weight, for easy set-up and tear down. The polyurea coating and the rugged structure of the cabinet survive long-term use and transportation and the separate Vibrostop housing for the amplifier guarantee the best components efficiency and reliability. The transportation is fast with the detachable Kart kit: a dolly caster-board with rugged tour grade casters and rotating cam mechanism.

The Good Flow

It’s common knowledge in fluid dynamics that the turbulent airflow is reduced with a smart design of the port.
The improved vented port is a proprietary solution that helps to achieve a good aerodynamic behaviour of the air (laminar), gaining efficiency and reducing distortion.

Features

2 x 3400 W digital amplifiers
2 x 21" high power neodymium woofers
96 kHz, 32 bit DSP processing
Remote monitoring and control
Time delay alignment
Cardioid preset for groups
Tour grade cabinet
RDNet on board
Maximum output per size on market

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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.

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.