SC3
18" sensor controlled subwoofer
Features:
- Coda Audio 18” extreme high output subwoofer
- Velocity sensors for feedback loop control
- Extended frequency range down to 20 Hz (-6 dB), 25 Hz (-3 dB)
- Ultra low distortion
- Fast transient response, the upper and the ultra low frequency are time aligned
- Ultra compact design
- Optional rigging hardware
SC3 KEY TECHNOLOGIES:
The advanced design aligns several new technologies for outstanding performance.
- Feedback loop control – ultra low distortion, very extended and controlled response
- Long excursion drivers with integrated velocity sensor
Available soon
The Feedback loop controlled subwoofer has clear advantages over conventional amplifier / subwoofer solutions when it comes to sonic performance, output and size.
The SC3 subwoofer
Description: Sensor controlled subwoofer incorporating 18” long excursion woofer.The SC3 subwoofer provides perfectly flat response down to 20 Hz (-6 dB) and very high output and low distortion.
What is Velocity Feedback Loop Comparator?
The new designed 18” driver includes a built in “velocity sensor” that measure precisely the movement of the voice coil. The “velocity sensor” sends information to the Comparator about velocity, excursion and speed of the voice coil (using XLR cable).
The comparator compares the original input signal to the movement measurement from the “velocity sensor” and adjusts the amplifier driving voltage and/or current so that the diaphragm moves the way it should move. This compensates in real time for the non linearity of the speaker/cabinet.
Main advantages of the Active Feedback Loop Comparator:
Total Harmonic Distortion is reduced significantly
THD drops 80 - 90% at low frequency (about 20 dB less distortion at 20Hz compared to the same driver without velocity sensor).
Extended Frequency response
Using this technology the frequency response of the speaker can be modified without equalization. The comparator is adjusted to compensate not only for the loudspeaker nonlinearities, but its frequency response as well. The flat frequency response goes down to 25 Hz (-3 dB). No high pass filters or equalizers are required.
Reduced group delay
This is a big issue that is most often overlooked in conventional designs. The feedback comparator technology offer great advantages in the time domain. In fact the upper bass and the very low frequency are time aligned which means they are reproduced at the same time resulting in extremely accurate and musical bass reproduction.
Reduced truck space
The sealed enclosure ensures best output to size ratio reducing up to 50% the cabinet volume.
The SC3 18” cabinet has similar size as a conventional 15” subwoofer with the advantage of extended low frequency response and higher output.
TRANSDUCERS
The SC3 is equipped with extremely long excursion 18” neodymium ultra low distortion woofer with integrated velocity sensor that measure, compare and control cone movements. The neodymium motor delivers extreme high magnetic flux for increased efficiency. The 4” voice coil is 50 mm high, ensuring ultra linear excursion of 40 mm / pp at consistent magnetic force. State of the art carbon-fiber cone ensure maximum stiffness and low moving mass. Three aluminum shorting rings reduce inter-modulation distortion; minimize induction variation while reducing thermal compression. This design reduces dramatically the distortion of a typical subwoofer at longer excursion levels, and improves the overall sound quality and performance characteristics of the cabinet. The sensor is in fact an additional voice coil connected to the loudspeakers voice coil in a high precision, magnetically shielded system.
Electronics and cabling
Using C2 - 19” Comparator
The C2 Comparator is the active electronic loop control unit for the SC3 subwoofer. The unit includes two balanced audio inputs and two outputs as well as two sensor control loops connected to a 5-pol Neutrik XLR input. The Comparator’s electronic circuit loop measures the voice coil excursion of the SC3 subwoofer and corrects the signal, significantly decreasing distortion. The unit is set for flat frequency response down to 25 Hz (-3 dB). This set up requires external system controllers (like DNC260) and is preferred for larger systems.
Rigging Hardware
The SC3 can be ordered with or without flying hardware.
Application
The SC3 is also suited for a variety of applications in touring and installations where high precision, deep bass is needed. The SC3 subwoofer is perfect suited as a sub-extension for AIRLINE LA8, LA4, G300-, G500- and G700-Series and CUE-Series in:
Houses of Worship
Theatres
Clubs