Rupert Neve Designs Portico II, Руководство по эксплуатации

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Limiter
Limit
This 31-detent potentiometer controls the threshold of the soft-clip limiter section. The limiter is disengaged until the
user rotates the Limit potentiometer past the 3rd detent (+24dBu) from the fully clock-wise (OFF) position. As the user
rotates the threshold control counter clock-wise, the limiter’s release time gradually increases. This creates a smoother
dynamic response as the amount of limiting increases. The limiter side-chain features a compound timing network that
allows the limiter to respond equally well to quick transient material as it does to less dynamic program material. The
PIIMB limiter can be utilized as a maximizer by setting the Limit potentiometer to the desired maximum level in dBu,
then increasing the amount of Gain until the desired program loudness is achieved.
Stereo Field Editor (SFE)
Within the stereo field, there is information that is centered within the stereo field that is phase coherent; such as kick
drum, snare, and bass guitar. There is also information that resides on the left and right sides of the stereo field that is
not phase coherent, such as the natural reverb and ambience in a room, effects processing and instruments recorded in
stereo. Utilizing sum and difference techniques, it is possible to isolate, then emphasize or de-emphasize the “Mid” and
“Side” information. The PIIMB’s Stereo Field Editor provides an enhanced version of a Mid-Side encoder for the user, with
an added EQ section for targeting specific frequency ranges of the Mid-Side processing.
Depth In
This illuminated push-button switch engages the Stereo Field Editor “Depth” pot and allows for A-B comparison.
Depth
This 31-detent potentiometer adjusts the overall level of the center (mid) information within the SFE’s M-S encoding.
The MIN (fully CCW) position will de-emphasize the center information within the stereo image, whereas the MAX (fully
CW) position will emphasize the center information. If the Depth control is at the 12 o’clock “0” position, no Depth pro-
cessing will be audible.
Width In
This illuminated push-button switch engages the Stereo Field Editor “Width” pot and allows for A-B comparison.
Width
This 31-detent potentiometer adjusts the overall level of the side information within the SFE’s M-S encoding. The MIN
(fully CCW) position will de-emphasize the side information within the stereo image, wheras the MAX (fully CW) posi-
tion will emphasize the side information. If the Width control is at the 12 o’clock “0” position, no Width processing will
be audible.
Depth EQ
This illuminated push-button switch engages the 4-position rotary switch that allows the user to select between four
different EQ settings for Depth processing: Low Frequency (LF), Low Mid (LM), High Mid (HM), and High Frequency (HF).
Width EQ
This illuminated push-button switch engages the 4-position rotary switch that allows the user to select between four
different EQ settings for Width processing: Low Frequency (LF), Low Mid (LM), High Mid (HM), and High Frequency (HF).
SFE to Comp
This illuminated push-button switch routes the Depth and Width information to Channel A and Channel B compres-
sor paths, respectively, allowing the user to manipulate the dynamic content of the Mid and Side information. When
engaged, the width and depth controls allow the user to blend the amount of compressed Mid and Side information
that is mixed back into the audio path. While SFE to Comp is engaged, the stereo compressor is only available for SFE
dynamic processing and is not operational within the main audio path.
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MBP Front-Panel Features