Duo Mic Pre-Amp Portico™ 5012 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. Microphone Input 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. Low Noise, Low Distortion Operation 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. Silk Much could be written about this feature, suffice to say, that it gives a subtle option to enhance sound quality in the direction of vintage modules. The Silk button reduces negative feedback and adjusts the frequency spectrum to provide a very sweet and musical performance. We suggest you try it and make your own judgment. High Pass Filter The High pass filter is a valuable aid in any signal chain but particularly so in a microphone preamplifier. Signals between 20 and 250 Hz can be attenuated, leaving the range above this unaffected. This gets rid of building rumble, air handling motor hum etc. Phantom Power Provides 48V phantom power to microphones FURTHER INFORMATION If you need any product information, or advice, or just the name of a dealer in your area who we recommend, please feel free to contact us anytime and we'll be glad to help out. For further information please email: sales@sonic-distribution.com Or call the Main Office: (0845 500 2 500) anytime Monday to Friday 9.30-6.00pm Copyright Sonic Distribution LTD. 2007 All Trademarks and ownership rights respected.