Midas 502 Modular Microphone Preamplifier with Classic XL4 Filters

Description

Midas 502 Modular Microphone Preamplifier with Classic XL4 Filters
SKU: MIMICROPH502
Mfr. Part: 000-BM802-00010
Item Includes
Midas 502 Modular Microphone Preamplifier with Classic XL4 Filters - Midas 10 Year Limited Warranty
Description
In response to the many customer requests received over the years, the award-winning MIDAS Microphone Preamp is now available as an add-on to any mobile or recording system. When used in conjunction with the LEGEND L10 or L6 500 Series Rackmount Chassis, the MICROPHONE PREAMPLIFIER 502 provides the ideal solution for users seeking the legendary MIDAS sound in a modular format that boasts upgraded, premium-quality performance. Additionally, the 502 module utilizes the same swept low and high pass filters found in the iconic XL4 Live Performance Mixing Console.
Award-Winning Mic Preamp
The MIDAS Microphone Preamplifier is considered by leading live sound and recording engineers as the very essence of the famous MIDAS sound. Decades of design experience paired with premium-grade components is the foundation of that acclaimed warmth and depth, which brings out subtle ambience, maintains spatial positioning and more effectively captures a precise sound image.
That warm and organic MIDAS sound has been heard by millions of concert goers - and recorded for posterity on countless live albums. The award-winning mic preamplifier in the 502 module has even been upgraded via the implementation of four discrete ultra low noise input transistors for even more transparent and ultra low noise performance.
Sweet Forgiveness
Over the years, many mix engineers have found this robust and overload-tolerant preamp design takes on a whole new dimension when driven hard. The 502 module's input stage allows up to +24 dBu signal levels with no pad requirement, while featuring the much loved soft clipping characteristic that provides crystal-clear audiophile reproduction with just the right amount of harmonics.
Classic MIDAS XL4 Filters
Our XL4 mixers are legendary for their uncompromising sonic characteristics, impressive versatility and ease of use. The 502 mic preamp honours that legacy by bringing back the low and high pass filters that helped make the XL4 so popular. The low pass filter control adjusts the filter frequency from 1 kHz to 40 kHz, while the high pass filter control adjusts from 10 Hz to 400 Hz (both -3 dB points).
Selectable Balanced Outputs
The default output of the 502 module is the same electronically balanced output you will find on most MIDAS mixing consoles. This configuration provides an extremely clean signal even when operating at very high signal levels. But you also have the option of selecting a discrete transistor-driven transformer balanced output stage by engaging the TX switch. 502's transformer provides galvanic isolation and generates a more vintage sound and becomes saturated at lower frequencies to add color when driven hard. The output levels of the electronic and transformer outputs are matched to allow true A-B comparisons on the fly.
Precision LED I/O Metering
A mic preamp of this calibre requires equally accurate I/O metering - and the 502 delivers in a big way. The high precision 11-segment rotary LED meter reads the signal post amplifier/pre fi lter, providing input metering from -20 dBu to + 20 dBu in 4 dB steps. A similar meter is provided for output trim adjustment from -20 dBu to + 20 dBu in 4 dB steps.
High Accuracy I/O Rotary Controls
Gain control is provided by a large precision 12-position rotary switch with gain settings from 0 (unity gain) to +60 dB in 5 dB increments, while a fully variable potentiometer is provided for the output trim across a +/-20 dB range. When used in combination, total maximum gain is an impressive + 80 dB, more than enough to accommodate even low level ribbon microphones.
Additionally, the output trim control can be: used to control coloration; set high to allow output transformer saturation (TX switch selected); or turned down to prevent the output level from running too high - and the input gain can be increased to take advantage of the overload tolerant mic amplifier.
Illuminated Switches
All of the 502 modules push-button switches feature LED illumination when activated for fast and easy status verification. Switches include the low pass filter IN switch, which inserts the low pass filter into the signal path; the high pass filter IN switch, which inserts the high pass filter (both post input-gain/pre output-trim); the phase reverse switch, which inverts signal phase 180 deg. ; the 48V switch, which supplies +48 Volts phantom power via the 500 Series Rackmount Chassis; and the output transformer (TX) selector. Add this to the 502's brilliant metering and you have instant at-a-glance confirmation of all preamp parameters.
Features
High performance, compact 500 Series premium MIDAS microphone/line preamplifier
Award-winning MIDAS amp has been enhanced with quad discrete ultra low noise input transistors
Legendary MIDAS input allows up to +24 dBu signal levels with no pad while featuring the much loved soft clipping characteristic
Classic MIDAS XL4 swept low and high pass filters with independent selection switches
Switchable electronic or discrete transistor driven transformer balanced output for sonic flexibility
Unique twin precision 11 segment LED circular input and output level metering
High accuracy rotary switch gain control with 60 dB range in 5 dB steps
Output gain trim with +/-20 dB range controls input and output stage coloration
Total gain range is an amazing -20 dB to +80 dB easily accommodating low output mics
Large gain trim knobs provide precise control of input and output gains
Illuminated switches for filters, +48V, polarity reverse and electronic/transformer output select
Power up mute relays prevent switch on thumps
Premium quality components throughout for a crystal-clear audiophile signal path
10-Year Warranty Program
Designed and engineered in the U.K.
Specifications
Controls
Phantom Power: 48 V switch
Input Gain, Mic/Line: 12-position rotary switch, 0 to 60 dB knob
Polarity: 0/180 deg. switch
Low-Pass Filter: In/out switch, frequency knob
High-Pass Filter: In/out switch, frequency knob
Output Trim / Line Gain Trim: +/-20 dB knob
Output Type (Electronic or Transformer): Electronic / transformer switch
Inputs and Outputs
Input: Mono, balanced mic or line
Output: Mono, balanced via electronic or transformer
Noise
Noise at Unity Gain: -97 dBu (22 Hz to 22 kHz)
Mic EIN Noise: -127 dBu (22 Hz to 22 kHz, at +60 dB gain, 150-Ohm source)
CMRR
Unity Gain (1 kHz): -70 dB (typical)
+60 dB Gain (1 kHz): -100 dB (typical)
Input Impedance
10 kOhms (1 kHz)
Frequency Response
Electronic Output: 20 Hz to 40 kHz (+/-0.5 dB)
Transformer Output: 20 Hz to 20 kHz (+/-0.5 dB)
Distortion
Distortion (electronic output at unity gain, 1 kHz)
0 dBu: <0.005%
+10 dBu: <0.005%
+20 dBu: <0.01%
Distortion (transformer output at unity gain, 1 kHz)
0 dBu: <0.01%
+10 dBu: <0.01%
+20 dBu: <0.02%
Maximum Input Level
+24 dBu (1 kHz)
Maximum Output Level
Electronic: +26 dBu (1 kHz)
Transformer: +21 dBu (1 kHz)
Output Impedance
50 Ohms (1 kHz)
Filters
Low Pass: 1 to 40 kHz, slope = 12 dB per octave
High Pass: 10 to 400 Hz, slope = 12 dB per octave
Meters
Input and Output Meters: 11 segment, -20 to +20 dBu in 4 dB steps
Power
Voltage: +16 V and -16 V
Power Consumption: 100 mA, 3.2 W
Dimensions (HxWxD)
5.2 x 1.5 x 6.9" (13.21 x 3.81 x 17.53cm)
Weight
1.5 lbs (0.68kg)
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