Rupert Neve Designs Portico II Master Buss Processor Features:

• CompressionFor signals below the äóìthresholdäó? level that has been set, a compressor provides a linear path allowing signals to be amplified without the gain being adjusted in any way. When signals exceed the äóìthresholdäó? level, the gain is reduced in a controlled manner that depends on the Ratio that has been set.
• GainGAIN range provided is from 0dB to +20 dB. When compression has taken place, the gain control is necessary to increase the overall gain to restore the program level.
• LimiterMusically transparent brick-wall limiting activated when the signal reaches the limiter threshold. Attack time is .03 mS in order to reduce the first half of a 20 kHz waveform over the threshold, with Serial Adaptive Release.
• Bypass AllHardwire bypass for MBP, including the input and output transformers
• TextureContinuously variable control for Silk and Silk+ modes allows the engineer to fine tune the harmonic ratio and tonality of each channel
• FF/FBChanges the VCA Detection from a forward feed design (fast, more accurate attack & release) to a feed back design (smoother, more musical response)
• Peak / RMS Compression SelectionWhen engaged, the MBP compressor uses a combination of peak and RMS (average) detection to trigger the VCA set below 1ms. When disengaged, it follows RMS alone.
• SC HPFIntroduces a HPF at 250Hz to the VCA side chain signal. This allows the compressor to disregard sustained low frequency content.
• RatioRange from 1:1 to LIMIT (i.e. 40:1)
• ThresholdRange from -30dBu to +20dBU
• Attack TimeRange from 20 mS to 75 mS.
• Release / Recovery TimeRange of RELEASE time is 100 mS to 2.5 Seconds.
• Stereo OperationWhen the LINK switch is engaged, channel A becomes the master control, and any gain reduction happens simultaneously in both channels
• LED MetersFour Peak LED METERS are provided that show stereo output levels and gain reduction.Output level meter covers the range from -10 to +22 dBu and above which is regarded as overload.The reduction is calibrated in dB covering the range 1 to 22 dBu, reading from top to bottom
• Side Chain Send/ReturnExternal compressor side chain send and return on 2 x TRS jacks. The send is always active and normalled to the return (NOTE: If the send and return are connected to a patchbay, the send should be normalled or connected to the return by default, as the compressor will not trigger if the return has no signal)