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IGS Audio NE71 User Manual

IGS Audio

NE71

Mic/Istr/Line Mono Preamplifier

User's Manual

Description

The NE71 is a classic circuit based on the legendary British preamp from

the 1980s. As in all IGS Audio devices the NE71 is a full symmetric

transformer balanced preamp. It is a pure A class circuit with the audio

path reduced to minimum (ultra-short connections between elements).

The construction consists of two steps of gain. The Gain and Output

knobs drive the individual steps. The input is a LL1538 Lundahl

transformer. It is a 1U unit.

Table of Contents

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Page 1 The NE71 is a classic circuit based on the legendary British preamp from the 1980s. As in all IGS Audio devices the NE71 is a full symmetric transformer balanced preamp. It is a pure A class circuit with the audio path reduced to minimum (ultra-short connections between elements).
Page 3 Input – right Output – left Input - left Getting started Connect the NE71 output to your sound interface input with a symmetrical XLR wire Connect your microphone to the rear XLR input or instrument into the front HiZ input...
Page 4 • Handy for vocal and guitar on stage • Great for high signals like an acoustic snare or kick The NE71 design has been well known and appreciated since the 1980s. This is a preamp that will satisfy all your needs.
Page 5 Specification • 1 balanced XLR Mic/Line Input • 1 unbalanced, high resistance HiZ Input on front panel • 1 balanced XLR Output • +4dB operating level • Maximum Output +29 dBV • Gain 60dB • HiZ impedance 1 MOhm • Output impedance 600 Ohm •...
Page 6 Warranty Warrants this device to be free from defects in material and workmanship for a period of three years. Any device found defective within three years from the delivery date and returned to the factory with transportation charges prepaid will be repaired, adjusted, or replaced at no charge to the original purchaser.