DACS Audio MicAmp2 - Manual (Page 7)

Specifications for MicAmp2
Distortion THD+N @ 1kHz <0.0016% @ 1kHz with +10dB output
and 60dB gain
Self Noise -128dB (DC-40kHz)
Cross talk <90dB
Frequency response Phantom Power Flat <2Hz to ca 45kHz, tailored roll off;
Non Phantom DC to ca 45kHz, tailored roll off
CMRR 50Hz typically -93dB @ 20dB gain, -98dB @ 62dB gain;
20kHz signal typically -61dB @ 20dB gain, -100dB @
62dB gain
¹Some of the factors which make the DACS MicAmp2 sound so good (“...great detail,
depth and clarity in the sound with a wonderful easy quality to it” as Calum Malcolm
told us) are not easily translatable into performance figures. The three ultra low
noise super matched pair transistors on the input stage have a lot to do with it. The
microphone is connected directly to the input transistor array, giving the correct load
without the addition of other components, which degrade the signal. They are current
devices, so there are always lots of electrons moving around. We believe that this is
the reason why, even at very low levels, there is never any graininess in the sound,
and that it is always clear, open and detailed. The noise performance may most
usefully be expressed in comparison with an NE5534, the low noise IC used in most
professional applications. The MicAmp2's noise is typically 16dB less, even at
maximum gain.
Compliance to European Standards
This MicAmp2 complies with the following standards (see Declaration of
Conformity):
Radiated Emissions to Specification EN50081-1
Conducted Emissions to Specification EN50081-1
Electro Static Discharge to Specification EN50082-1
Fast Burst Transients to Specification EN50082-1
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]