Global PRE

SocButtons v1.5

Hi-end quality microphone preamplifier

global_pre_Violet Design Global PRE The GLOBAL PRE is compact hi-end quality electrostatic microphone preamplifier body. Fully covering today’s high resolution audio recording demands it was designed as an alternative to expensive historical vacuum tube microphone preamplifiers. The GLOBAL PRE body is fully compatible with Germany made vintage M-series interchangeable capsule heads, and B-series & VIN-series interchangeable capsule heads made by JZ in Latvia.
Phantom powered, linear, class-A discrete solid state transformerless preamplifier electronics provides extremely low self noise and hard to measure all kind of distortion. Symmetric output with XLR-3 type gold plated contact output connector provides balanced low impedance output and stable connection.
The GLOBAL PRE body comes in a wooden box with included GSM adjustable angle compact studio shock mount. Polar patterns and applications fully depend from interchangeable head different specifications.

Specifications

  • Compatible transducer type: electrostatic - condenser
  • Frequency range: 5 Hz to 50 kHz linear
  • Directional of polar pattern: depends of capsule
  • Output impedance: 50 ohms
  • Rated load impedance: 1000 ohms
  • Suggested load impedance: > 250 ohms
  • Dynamic range of the microphone preamplifier: >130 db
  • Phantom powering voltage on pins 2 & 3 of XLR: +48 V (+/-4 V)
  • Current consumption: < 2 mA
  • Output connector: 3-pin XLR male, gold plated contacts
  • Signal polarity: positive toward pressure on a diaphragm produces positive polarity voltage on XLR pin #2 relatively to pin #3
  • Dimensions and weight: 60 mm height, 60 mm diameter, weight 250 g