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The Marani CLP-260 Stereo RMS Compressor & Peak Limiter features an AGC, a 7-band EQ and a Sub Harmonic Synthesizer. It utilizes a real RMS compressor that compresses a pure sinusoidal signal at the same threshold as a squared wave. The compression process is carried out with fast slow attack and release of the input signal in order to maintain the amplitude of the output signal at a defined level, when the input level exceeds a defined intervention threshold.
The compressor acts on the evaluation of an input signal which is an averaged one on a 50 ms time frame, and represents the actual RMS value of the input signal itself, to make the compressor's action more musical. The RMS compressor maintains constant output energy for different inputs, independent of their harmonic content, thereby maintaining a constant output RMS level.
The compressor and limiter features ratio and hard / soft knee parameters. The ratio parameter allows you to get a compressed output, maintaining a constant dB ratio with the input. With a precise look-up table log computation process, the ratio parameter is maintained with a precision of 0.1 dBu. The hard and soft knee feature allows you to select between a sudden compression intervention when the input signal is just above the threshold (hard knee) and a smoother one starting the compression smoothly before the threshold.
The AGC is an expansion / compression process applied with slow attack and release times to the input signal in order to maintain the average amplitude of the output signal at a defined level, independently from the averaged amplitude of the input sources. For this purpose, the AGC has to be able to expand the input signal where the average of the related output signal is below a defined threshold, and maintain the expanded signal at a constant expansion level when the averaged signal is beyond a defined threshold.
The peak limiter is useful when the unit is used before an amplifier and needs to limit the signal for avoiding the amplifier to overload and break cabinets. In addition to the dynamic processes, the CLP160 is also a powerful sub-harmonic synthesizer. The sub harmonic synthesizer generates sub-harmonics based on the harmonic content of the original signal. The amplitude distribution of the generated sub-harmonics follow the shape of a band pass filter set on the low part of the band. The peak of this band pass filter is centered on 65 Hz. This means that the sub harmonics added to the original sound, being at one octave below the harmonics detected in the original signal itself, brings a deep and low extra body to the original sound.
In order to adjust the input signal harmonically, the unit features a 7-band EQ, where the first of the 7 filters can be chosen to be the 1st / 2nd order HP or low shelving and the other 6 filters can be chosen to be the 1st / 2nd order high shelving or peaking. The CLP260 compressor / limiter unit has a bypass control in the analog domain.
In the Box
Marani CLP-260 Stereo RMS Compressor & Peak Limiter with AGC, 7-Band EQ, & Sub Harmonic Synthesizer
Limited 1-Year Warranty
Table of Contents
2 x 1/4" TRS
2 x 3-pin XLR female
2 x 1/4" TRS
2 x 3-pin XLR male
Input: +15 dBu
Output: +10 dBu
THD + N
>100 dBu (processes in bypass)
20 Hz to 20 kHz ± 0.5 dB
A/D and D/A: 24 bit
Process: 24 x 48 bit
RMS stereo compressor
2 x 20 characters
For the parameters editing
Fully remotely controllable by USB or MIDI
110 / 220 V (switchable)
Marani CLP-260 Stereo RMS Compressor & Peak Limiter with AGC, 7-Band EQ, & Sub Harmonic Synthesizer Review