Golden Age Project Pre-573 MKII 500 Series Microphone Preamplifier

Golden Age Project Pre-573 MKII 500 Series Microphone Preamplifier

Golden Age Project Pre-573 MKII 500 Series Microphone Preamplifier

B&H # GOPRE573MK2 MFR # PRE573MK2
Golden Age Project Pre-573 MKII 500 Series Microphone Preamplifier

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Important Notice: This item is non-cancelable and non-returnable
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Expected availability: 7-14 business days 
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Product Highlights

  • Based on Vintage 1073 Design
  • Mic, Instrument, & Line Inputs
  • Up to 80 dB of Gain
  • Output Gain Attenuator
  • Switchable Input Impedance
  • Front-Panel Instrument Input
  • Required 500 Series Chassis
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  • 1Description
Featuring a soft-start circuit that increases power draw and a lower-noise performance from its predecessor, the Pre-573 MKII 500 Series Microphone Preamplifier from Golden Age Project is based on the classic 1073 mic preamp design, and offers up to 80 dB of gain for its mic and instrument inputs, while a fully balanced line-input pad allows you to connect line-level sources. Its output gain control allows you to hit its input harder without resulting in peaking output levels, resulting in transformer and circuit saturation for warm or distorted tones. A dedicated insert connector in the back of the module allows you to connect it to other GAP 500 series processing units, which require a mic pre for use.
Soft start circuit that slowly increases the current draw
Revised power supply with lower noise compared to the MKI
Increased AIR boost to 6 dB
Fully balanced line input pad
Vintage Style electronics based on the 1073 mic pre. No integrated circuits in the signal path
The output is transformer balanced and fully floating and can drive a 600 ohm load up to level of about 28 dBu
Maximum gain on the mic input is 80 dB, enough to handle passive ribbon mics with quiet sound sources
The total gain range goes from -15 to +80 dB. The 10 - 70 dB range is handled by a turn switch and a toggle switch selects an additional 5 or 10 dB gain
Switchable impedance on the mic input, 1200 or 300 ohms, will change the tone of many mics
The input can be configured to accept line level signals by another switch, the level is then lowered by about 25 dB and the input impedance increased to about 15 kohm
Switchable phantom power with a LED indicator
A front panel instrument input for any sound module, electric guitar or bass that can be selected between a high impedance Active or a mid-Z Passive mode. These two DI-options makes it possible to get different tones from electric instrument. The Passive DI input mode is usually more suited for injecting active units like sound modules
The output level control makes it possible to make fine gain adjustments and also to overload the main gain stage and then lower the signal to a suitable level before the output stage
Insert jack for inserting Golden Age Project 500 Series effect units. The insert can be activated by removing a jumper at the back of the module
Phase switch
Selectable AIR equalizer adds a small boost above 10 kHz.
A signal and overload indicator is offered by a single LED that starts glowing red at about +4 dBu and then increases its intensity up to the maximum output level
Tantalum capacitors in the signal path
Selectable 600 ohm Output Termination at the back of the module
Circuit board star grounding scheme
Table of Contents
  • 1Description
Maximum Gain Mic Input: 80 dB
Total Gain Range: -15 to +80 dB
Input Impedance Mic Input: Switchable between 300 and 1200 ohms
Line Input: 15 kOhms
EQ Section Selectable AIR switch adds 6 dB boost above 10 kHz
Output Impedance Selectable 600 ohm output termination
Packaging Info
Package Weight 3.1 lb
Box Dimensions (LxWxH) 9.9 x 8.3 x 3.5"

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