Dacs MicAmp2 User Manual - Page 2

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Welcome

At DACS we are very pleased that you have chosen to purchase one of our products.

We take pride in our work and are sure that this MicAmp2 will give you years of

exemplary service. If you have any suggestions or comments about this product

please call, fax, write or e-mail us with your thoughts. Thank you.

Introduction

The MicAmp2 is an ultra low noise microphone amplifier. It uses three super

matched pairs of transistors for the main gain stage, giving low noise performance

and very fine detail, even at very low input levels. The frequency response is flat

down to below 1Hz at the bottom (DC for non phantom powered microphones) and

does not start its tailored high frequency roll-off until above 45kHz. The CMRR is

hand trimmed at mid and high frequencies to very high tolerances.

Each channel has an eight position self cleaning rotary switch to set gain in 6dB steps

from 20dB to 62dBd. There is then a gain trim from 0dB to +10dB, and a three

position bass roll off filter, giving a flat response and two cut-off points at a nominal

80Hz and 30Hz. The cut-off point and slope of the filters have been chosen to give a

smooth response, while removing very low rumble (30Hz) and more mains type

noise (80Hz). In addition they have no effect above their cut-off frequency. The

balanced output is a fully floating servo type output, with hand trimmed balance set to

+/-1% accuracy, delivering up to +22dB into 600R.

Working with the MicAmp2 is straightforward. Settings are easily repeatable due to

the stepped gain and detailed scaling on the trim control.

protection on the input so that any fault condition immediately triggers the protection

circuitry, preventing damage to the amplifier circuitry.

DACS LTD, Stonehills, Shields Road, PELAW, Gateshead, Tyne and Wear NE10 0HW

Tel: +44 (0) 191 4382500 | Fax: +44 (0) 191 4382511 | www.dacs-audio.com | [email protected]

Instructions for use and installation

icAmp2

There is ultra fast