คำอธิบาย...
English Description Rupert Neve Designs 5024 Quad Mic Preamp Below
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.
Every channel features custom transformers and class-A circuitry 0 to 72 dB Gain knobs and -6 to +6 dB Trim knobs on every channel.
When the Gain knobs are set at 0 dB and the phantom is turned off, the 5024 can handle signals of +25 dBu without the need for pads, and act as line-level inputs with an impedance of 10k ohms. Eight-segment LED meters on every channel.Ground Lift buttons on channels One and Two.
Features:
- 4-Channel Microphone Preamplifier
- Silk Circuit Adds Vintage-Style Warmth
- Built-In Mid/Side Decoding
- Two 1/4″ Hi-Z Inputs
- 48V, Phase, Mutes and High-Pass Filters
- Class-A Circuitry
Specification
FREQUENCY RESPONSE
Main Output, no load.
-0.2 dB @ 10 Hz
-3 dB @ 160 kHz
NOISE
Measured at Main Output, unweighted, 22 Hz – 22 kHz. Terminated 150 Ohm.
Terminated 150 Ohm.
With gain at unity better than -100 dBu
With gain at 66 dB better than -2 dBu
Equivalent Input Noise better than -128 dBu
Noise Factor 1.5 dB
HIGH PASS FILTER
FREQUENCY
80 Hz
SLOPE
12 dB/Octave Bessel
MAXIMUM OUTPUT LEVEL
From 20 Hz to 40 kHz is +26 dBu.
TOTAL HARMONIC DISTORTION AND NOISE
@ 1 kHz, +20 dBu main output: Better than 0.001%
@ 20 Hz, +20 dBu main output: Better than 0.002%
Silk Engaged: Better than 0.2% Second harmonic
CROSSTALK
Measured channel to channel: Better than -90 dB @ 15 kHz.
PHANTOM POWER
+48 Volts DC +/- 1%
POWER REQUIREMENTS
3-Pin EIC Input
100-240VAC
50/60Hz
.5 Amp
Specification
FREQUENCY RESPONSE
Main Output, no load.
-0.2 dB @ 10 Hz
-3 dB @ 160 kHz
NOISE
Measured at Main Output, unweighted, 22 Hz – 22 kHz. Terminated 150 Ohm.
Terminated 150 Ohm.
With gain at unity better than -100 dBu
With gain at 66 dB better than -2 dBu
Equivalent Input Noise better than -128 dBu
Noise Factor 1.5 dB
HIGH PASS FILTER
FREQUENCY
80 Hz
SLOPE
12 dB/Octave Bessel
MAXIMUM OUTPUT LEVEL
From 20 Hz to 40 kHz is +26 dBu.
TOTAL HARMONIC DISTORTION AND NOISE
@ 1 kHz, +20 dBu main output: Better than 0.001%
@ 20 Hz, +20 dBu main output: Better than 0.002%
Silk Engaged: Better than 0.2% Second harmonic
CROSSTALK
Measured channel to channel: Better than -90 dB @ 15 kHz.
PHANTOM POWER
+48 Volts DC +/- 1%
POWER REQUIREMENTS
3-Pin EIC Input
100-240VAC
50/60Hz
.5 Amp
