The Portico 5012 is a dual channel mic pre featuring Neve's custom input and output transformer designs. In addition to individually selectable phase, mute, phantom power and a fully sweepable high pass filter, the 5012 incorporates a "Silk" circuit which yields the rich warmth and presence of the renowned classic designs.
The microphone input is balanced but not floating, being a variant of an instrumentation amplifer using a "Transformer-Like-Amplifier" (T.L.A.) configuration with a toroidal Common Mode Rejection Low Pass Filter that excludes frequencies above 150 kHz. The T.L.A. is followed by an actual input transformer permitting a full +25 dBu input signal to be handled at unity gain without an input pad over the whole audio spectrum. This combines the advantages of both an "Electronically Balanced" and true transformer input. When the Phantom voltage is switched off, this input serves as a very high quality line input with an impedance of 10,000 ohms.
Much care was given in designing the 5012 to produce as little noise and non-harmonic distortion as possible. Carefully implemented signal paths and Class A operation are a large part of the 5012′s sweet, whisper quiet performance.
MPN 5012-H 0 0
- Dual channel mic preamp
- Individually selectable phase, mute, phantom power and a fully sweepable high pass filter
- 'Silk' circuit which yields rich warmth and presence
- Provides 48v phantom power to microphones
- Compact half rack module
- Heavy duty construction
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