Yamaha QL5 Reference Manual - Page 121

 Portico 5033 Portico 5033 is a processor that emulates a 5-band analog EQ developed by Rupert Neve Designs (RND). 5033EQ features a unique tone control response. It inherited the history of the "1073," which was praised as one of the greatest devices developed by Mr. Rupert Neve. Yamaha's VCM technology has modeled the EQ to the last detail, including the input/output transformer that was designed by Rupert Neve himself. As a result, this processor model produces musically high-quality sound even when bypassed. Its response features unique effects. For example, if the Lo setting is cut, the low range becomes tight, and if the Hi setting is raised, the desired range will be boosted without hurting your ears. 8 5 3 1 2 7 Graphic EQ, effects, and Premium Rack 6 LMF/MF/HMF IN button Turn LMF/MF/HMF EQ on or off respectively. 7 LF/HF IN button Turn LF and HF EQ on or off simultaneously. 8 Graph Indicates the graphical EQ response.  Portico 5043 Portico 5043, like Portico 5033, is a processor that emulates RND's analog compressor. The actual 5043 compressor is equipped with the same input/output transformer as that of the 5033 EQ, delivering a natural, analog-like tonality and effect. It enables you to obtain a range of results from hard compression to natural sound, and is suitable for a broad range of audio sources ranging from drums to vocals. The most notable feature of this model is that you can switch the gain reduction type. You can choose either an FF (Feed-Forward) circuit type (which is the current mainstream), or an FB (Feed-Back) circuit which was typically used in vintage compressors. This allows you to create sounds with various characteristics as appropriate for your applications. 1 23 4 4 6 1 ALL BYPASS button Switches EQ bypass on or off. Even when EQ bypass is on, the signal will pass through the input/output transformer and amp circuits. 2 TRIM knob Adjusts the input gain of the processor. 3 LF/LMF/MF/HMF/HF Frequency knobs Adjust the frequency for each band. 4 LF/LMF/MF/HMF/HF Gain knobs Adjust the amount of boost or cut for each band. 5 LMF/MF/HMF Q knobs Adjust the Q (steepness) of each band. The higher the Q value, the narrower the range in which you can control the gain for the band. 5 67 8 9 1 IN button Turns the compressor's bypass on or off. When the compressor is bypassed, the button indicator will turn off. However, even if the compressor is bypassed, the signal will pass through the input/output transformer and amp circuits. 2 INPUT meter Indicates the input signal level. One meter appears in DUAL mode, and two meters appear in STEREO mode. 121 Reference Manual