Rupert Neve Portico 5012

Duo Mic Pre-Amp 

The Portico 5012 is a dual channel mic pre featuring Neve's custom input and output transformers 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. 

Technical Specifications

• Input: Balanced, using "Transformer-Like-Amplifier" (T.L.A.) with 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 +26dBu input signal to be handled at unity gain without an input pad over the whole audio spectrum. Combines the advantages of both an "Electronically Balanced" and true Transformer input. When the Phantom voltage is disabled, this input serves as a very high quality Line Input.
• Input Impedance: 10,000Ω + or 20% 
• Noise: 
  
  • Measured at Main Output: Input terminated with 150Ω
  • Measured over band limited 22Hz-22kHz, Unweighted:
    
    • With Gain at Unity: Better than 100dBu
    • With Gain at 66dB: Better than 62dBu 
    • Equivalent Input Noise (E.I.N.): Better than 128dBU
• Frequency Response: 
  
  • Main Output, no load: @10Hz, 0.2dB and @ 160kHz, 3dB
• Buss Output: @ 10Hz, 0.2dB and @ 160kHz, 3dB 
• High Pass Filter: Swept Frequency continuously variable from 20Hz to 250 Slope: 12dB/Octave 
• Gain: Switched Gain from Unity to +66dB in 6dB steps
• Trim: Continuously adjustable potentiometer from 6dB to +6dB with reference to setting on the Gain Switch
• Max Output Level: Balanced and Floating Transformer Output from 20Hz to 40kHz: +25dBu. (Clips at just over +26dBu)
• Mute: Mutes Main Output only (i.e. Monitor remains Live) 
• Total Harmonic Distortion and Noise: 
  
  • Main Output @ 1kHz: +20dBu output Better than 0.001% level, no load: (No high order Harmonics)
  • Silk Engaged: Approximately 0.2% Second Harmonic
  • Main Output @ 20Hz: +20dBu output Better than 0.01% level, no load, measured at the output
• SILK: The 5012 uses mainly single-sided amplifier circuitry that excludes any possibility of crossover distortion. The "SILK" button reduces negative feedback and adjusts the frequency spectrum to provide a very sweet and musical performance. 
• Buss Output: The Buss Output is designed to feed other Portico Series modules with Buss Inputs
• Crosstalk Measured Channel to Channel: Better than 90dB @ 15kHz
• Phantom Power: +48Votls DC ±1%
• Main Power Required (From External Power Unit): Voltage Rance, 9 to 18 Volts DC
• Current Consumption:
  
  • @ 9VDC = 1.3A typical 
  • 12VDC = 1A typical 
  • 15VDC = 800mA typical 
  • 18VDC = 650mA typical 
• Rear Panel Power Connector: 5.5mm x 2.1mm DC jack, Center Positive