500 Series Microphone Preamp

Purple Audio has entered the 500 Series mic pre world with two offerings, the Biz and the Pants. The Biz is a uniques sounding, three amplifier discrete microphone preamp module designed to work in standard "500" racks. The Pants is a four op-amp, differential preamp, also designed to work in "500" racks.

The 512C is a discrete mic/line pre with 65 db of gain, front and back panel mic input access, and a line/instrument preamp with 50db of gain.

The Germanium 500 preamp/DI uses classic Germanium transistors in all class A, transformer balanced circuits. Front panel controls include input gain, feedback drive, pad and phantom power. The DI input jack is also on the front panel.

The MP-500NV is a professional mic pre designed to recreate the vintage sound characteristics of the early 1970's large consoles. Metering before and after the major gain stages allow the user to drive it hard to greatly expand the range of sonic options.

A Designs offers five new mic pre's for the 500 series. Chose from the P-1, the EM Silver, the EM Gold, the EM Red, and the EM Blue.

The Model 583s is the world’s first vacuum tube preamplifiers designed for 500 series frames and is based on our popular 992EG platform. The input stage is a traditional single-ended type utilizing a 1:10 microphone input transformer along with one ECC83/12AX7 vacuum tube. The output stage utilizes premium Burr-Brown and THAT Corporation balanced line drivers.

The Juggernaut is a 500 Series Mic Pre with all Class A & discrete electronics, can emulate classic vintage and modern preamps based on settings, and push button switchable custom input transformers (iron or nickel).

The Elixir preamplifier module has been designed to provide exceptionally low noise wide bandwidth amplification of microphone and instrument signals. The Elixir will suit those who desire a recording preamplifier where just a slight amount of bass colour is added to the original signal whilst retaining full treble extension and a smooth midrange.

A dual mic pre in only one slot with up to 60dB of clean low distortion gain. It can also be used as a line preamp. Features Sowter input transformers

The Audio Throttle was designed to run in series with another mic preamp and provide either up to 18db of clean gain in one direction or a 6 or 12 db pad in the other direction. This would allow you to use some of the lower gain 500 series preamps (or any other preamp for that matter) on quieter sources and still get a proper signal level. It would also allow you to pad down the output of a hot preamp.

The MA5 is a standard single-ended Class A pre amplifier. UK made Carnhill/St Ives input transformers are used, along with custom designed Jensen output transformers. There is a stepped gain rotary switch in 5dB steps.

Dual99v500 mic pre uses two discrete 99v opamps as a 2 stage gain path to provide 75dB of gain with ease. It is aimed at getting big but realistic vocals and acoustic instruments. The TG500 mic pre is a 2 FET 6 transistor Class A design giving 75dB of gain. It is based on early NEVE, BBC, EMI gear simple transistor gain stages fully redesigned to include extra useful features and to run on API+/-16v rails.

The Tubule is a real transformer-coupled tube mike preamp, getting all its amplification from a standard dual triode tube. Features include switches for -20dB input pad, polarity inversion, and phantom power, a 12-position gain control switch that ranges from 33 to 66dB in 3dB steps, and a continuously-variable input attenuator that ranges from 0 to -10dB for very accurate gain settings that can be easily recalled.

The MX-1 is an API™ 500 Series compatible discrete microphone preamplifier providing stepped control over input attenuation and true level control. The MX-1 has two Hi-Pass Filter settings; 70Hz, 40Hz. Middle position on the switch is for 'off'. Other features include 48v Phantom Power, selectable transparent -10db and -20db pad, a phase reversal switch, and a proprietary high gain switch for more output level.