The Golden Age PRE-573 Premier 500-Series Preamp is a one-channel vintage style microphone, line and instrument preamplifier. The signal path uses only discrete components like resistors, capacitors and transistors.
The microphone and line input and the line output are transformer balanced, using two different transformers, each one optimized for its purpose.
This is the way audio components were built before integrated circuits became available. The subjective sound quality delivered by vintage equipment is often prefered to the one delivered by modern units, a situation that is even more obvious now when music is recorded with clean sounding digital audio equipment.
The circuit used in the PRE-573 PREMIER is similar to the preamp section in the classical 1073 module with a corresponding sound character that is warm, punchy, sweet and musical. These classic characteristics have been heard on countless recordings through the years and it is a versatile sound that works very well on most sound sources and in most genres. The essence of this sound is now available at a surprisingly low cost, making it available to nearly everyone.
Golden Age PRE-573 Premier 500-Series Preamp Features
- Vintage Style electronics. No integrated circuits in the signal path.
- UK-made Carnhill in- and output transformer. The output is balanced and fully floating and can drive a 600 ohm load up to level of about 28 dBu.
- Maximum gain in MIC mode is 80 dB, enough to handle passive ribbon mics with quiet sound sources.
- The total gain range goes from -10 to +80 dB. The 20 to 70 dB range (in MIC mode) 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 30 dB and the input impedance increased to about 10 kohm.
- A selectable two-position 6 dB / octave highpass filter with fres of about 45 or 180 Hz.
- A flexible front panel instrument input for electric guitar or bass that can be switched between a high impedance active or a mid-Z passive mode. These two DI-options makes it possible to get different tones from instruments. Mains connected sound modules or other signal sources should be connected to the MIC/LINE input of the 500-rack, unless they have a fully floating, transformer balanced output stage.
- The output level control makes it possible to make fine gain adjustments and also to overload the main gain stage(s) for more character and then lower the signal to a suitable level before the output stage.
- Insert jack for inserting Golden Age Project and Premier 500 Series eq and effect units. The insert is activated by removing a jumper at the back of the module.
- A soft start circuit that ramps up the supply voltage slowly (~10 sec.) to avoid a power-on current surge.
- Phase switch and switchable phantom power with a LED indicator.
- Selectable AIR equalizer adds a boost of about 6 dB centered at 30 kHz.
- A simple but effective 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 and polystyrene capacitors used in the traditional positions.
- The 6.8 kohm phantom power resistors are matched to within 0.1% to maintain good common-mode rejection in the circuit.
- Selectable 600 ohm output termination at the back of the module.
- Circuit board star grounding scheme.
- A solid build quality that will last many years of normal use.
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Great
Jan 16th 2024I own 2 of these. You put them in front of anything and they sound great. I researched for 3 weeks before buying, down to the internal components used in vintage neve preamps form the 70's and I believe this to me the closest thing to a vintage neve preamp you can get. The price? Unbelievable. Heaviest module I own. It just feels like quality in your hands. I am a huge IGS fan but I bought this due to price. Full disclosure, the IGS Neve clone I have not tried.
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Rabbit Hole & Mostly Very Happy
Apr 23rd 2023I have followed the white rabbit and I am in 500 series wonder land - I'll review 2 tubes (F609 and Retro 500 PRE) and 2 1073s (IGS NE573 and Golden Age PRE-573) So here's the thing, as I stated in my review of the IGS I did not realize when I checked out that I had two 1073 clones in my cart - but I thought it would be cool to compare the two and review. So why only "mostly" very happy? The unit arrived with an odd defect. (all props to Ryan and FEA for taking care of the return and getting me sorted with a new unit) The issue was the main gain knob went dead at the 12 o'clock / 45db setting and beyond. The replacement unit was perfect. The big question is how does it sound at less than 1/2 of the IGS? To my ears pretty much the same. It is clean, clear, and a little forward but not hyped. The build is just as solid and there are more sonic options to explore via switches for HPF and impedance etc . I am using it on the snare bottom with a Beyerdynamic M201 TG and I have not tried the DI yet. Maybe the 500 dollar difference will present itself over time or by source but so far I am happy with both and if I wanted an extra...extra... 1073, I think I would get the GA for $400 rather than the IGS for $900
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Great Built Great Sound
Aug 31st 2020I own a 1073 500 series AMS Module, one of the first things I noticed upon unboxing the GA version is the weight and Build quality. It feels like the real thing and it sounds amazing. Do yourself a favor, order in pairs.
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Golden Age Pre-573 Premier 500-Series
Jul 19th 2020Wow this module sounds awesome. Its got everything you need in a vintage styled mic preamp. I recommend this to everyone wanting that vintage transformer based sound at a great price.