Product Description
The Portico 5024 Quad Mic Preamp from Rupert Neve Designs is a four-channel microphone preamplifier that offers a versatile way to connect microphones, instruments, and line-level sources. Channels One and Two feature 1/4" Hi-Z instrument inputs, and a 1/4" THRU output to pass the connected signal to an external piece of gear. A Mid/Side decoding button enables you to control the Mid level on channel Three, and Side level on channel Four. Every channel features a Silk button, which engages circuitry that adds vintage-style warmth to the signal. There are buttons on every channel to activate phantom power, phase reverse, mute, and a high-pass filter that gives you the option to cut at 30 or 90 Hz. All of the XLR inputs are transformer-balanced, and its balanced XLR outputs are transformer-coupled.
Product Specs
| Number of Channels | Four |
| Inputs | 4x transformer balanced XLR mic-level inputs 2x 1/4" transformer-isolated Hi-Z DI inputs |
| Outputs | 4x transformer-coupled, balanced XLR line-level outputs 2x 1/4" THRU outputs (on front panel) |
| Phantom Power | 48 Volts DC +/- 1% |
| Gain Range | Unity to +66 dB in 6 dB steps, Trim continuously adjustable from -6 dB to +6 dB Line Input: Trim continuously adjustable from -6 dB to +6 dB |
| Maximum Output Level | 20 Hz to 40 kHz is +26 dBu |
| Frequency Response | Main Output, no load: -3 dB @ 2 Hz -3 dB @ 160 kHz |
| Noise | Measured at Main Output, unweighted, 22 Hz to 22 kHz Terminated 150 Ohms With gain at unity better than -100 dBu With gain at 66 dB better than -62 dBu Equivalent Input Noise better than -128 dBu Noise factor 1.5 dB |
| THD & Noise | @ 1 kHz, +20 dBu output: Better than 0.002% Silk Engaged: Better than 0.2% Second Harmonic @ 20 Hz, +20 dBu out Better than 0.004% @ 20 Hz +20 dBu out Better than 0.020% IM Distortion: Better than 0.002% Slew rate Better than 4 V/uS High Pass Filter: Frequency: Selectable either 30 Hz or 90 Hz Slope: 12 dB/Octave Bessel |
| Crosstalk | Measured channel to channel: Better than -90 dB @ 15 kHz |
| High-Pass Filter | Frequency: 30 Hz or 90 Hz Slope: 12 dB/Octave Bessel |
| Power Requirements | 3-Pin EIC Input 100 to 240 VAC 50/60 Hz 0.5A |
| Rackmount | Yes, 1U |
| Dimensions (WxDxH) | 19 x 9 x 1.75 (48.26 x 22.86 x 4.45 cm) |
| Weight | 18 lb (8.2 kg) |
| Packaging Info | |
|---|---|
| Package Weight | 13.45 lb |
| Box Dimensions (LxWxH) | 22.7 x 14.6 x 6.9" |