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DACS Clarity MicAmp II
DACS Clarity MicAmp II
 
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List Price: $2,279.00
Our Price: $2,279.00


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Product Code: 3275

 

DACS MicAmp II Microphone Preamp

DACS Clarity MicAmp II 2-Channel Microphone Preamp

DACS Clarity MicAmp II 2-Channel Microphone Preamp Details

Easy to set up and use, the DACS Clarity MicAmp produces an extraordinarily clear, uncoloured, detailed and complete sound for recording everything from voice and acoustic instruments to overheads on drums, with bomb proof input stage and optional in line pad. Users universally describe it as one of the finest microphone amplifiers in the world.

Winner of 1998 SSAIRA for Outboard Pre-amplifiers voted for by readers of Studio Sound

"Does it sound good?" The answer in tests has been an unequivocal "YES!"

The DACS MicAmp is a very high performance unit. At this level every effort must be made to avoid compromising the quality of the signal path. DACS examined every aspect of the process, from the power supply to wiring to external connectors. Probably the changing of any one factor would make no noticeable or measurable difference, but cumulatively, the attention to detail is worthwhile, particularly in long-term performance and reliability. Below are some notes regarding the technical aspects of the MicAmp, which makes this unit one of the best Microphone Amplifiers available.

Power Supply Unit

The Dual Rail supply used in all our products uses LM317 variable regulators. These have been shown in a number of tests to be lower noise than standard 78/9 series regulators. We have also implemented additional ripple reduction circuitry. In addition most capacitors are Tantalum, not standard electrolytic. The main smoothing capacitors are 4700µF per rail. The Phantom Power Supply is an op-amp based regulator giving extremely stable regulation.

Power distribution uses a star system to minimize any interaction between circuit elements.

Earthing

The unit uses a star earth system where all earths go to the 0V terminal using heavy cable.

Wiring and Fixing

Where connections are crucial we have soldered directly to the PCB. This forms a more reliable long-term connection than plugs. All cables are loomed and firmly cable tied to the board. The audio cable is OFC, again producing a small benefit over the long term. No external connectors are PCB mounting. This ensures long-term reliability.

Components

The input DC decoupling capacitors are metallised polyester of 5% tolerance. The input is protected by four ultra fast diodes. The transistors are stacked to improve thermal coupling and reduce lead length. They are mounted in a turned pin socket. The gain switching uses a self-cleaning rotary switch which is screwed to the PCB, then soldered, and the switching shaft is fixed to the screwed down portion of the switch body so that there is little or no mechanical stress on the PCB. The pot (conductive plastic tracks) is also mounted on a bracket to minimise PCB stress. The filter stage uses 5% metallised polyester capacitors too, to give accurate and stable filtering. The amplifier stage is decoupled from the filter and trim stage by a 100uF bi-polar electrolytic capacitor. The trimmers are all low noise trimmers with a wide track. Throughout we have used Burr Brown OPA604s which are extremely high specification op-amps optimised for audio applications. In listening tests they have been preferred to NE5532s.

Noise and distortion

EIN is -133dB relative to a maximum output of +22dBu. Distortion is very low, with THD+N figures of around .00025% @ 1kHz (measured in the audio frequency range). Input impedance is ca 1kOhm.

Frequency response

-3dB point at 48kHz, roll off at 6dB/octave Flat to less than 20Hz on phantom with subsonic roll off at 6dB/octave, DC coupled on non phantom inputs.

DACS Clarity MicAmp II 2-Channel Microphone Preamp Features

  • 2 channel discrete-component-based microphone amplifier
  • Ultra low noise, ultra low distortion
  • Unmatched transparency of sound coupled with sonic punch
  • Gain settings in 6dB steps, from +20dB to +62dB, with a 0dB to +10dB trim control
  • Separate non-Phantom Power input coupled directly to gain stage for dynamic, ribbon and valve mics
  • Flat frequency response from below 20Hz to above 48kHz
  • Tri-segment LED display for clear metering

DACS Clarity MicAmp II 2-Channel Microphone Preamp Specifications

  • 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

DACS Clarity MicAmp II 2-Channel Microphone Preamp Downloads

What We Think - DACS Clarity MicAmp II Review

"Looking for clarity? Look no further. This is an AMAZINGLY clean piece, tons of gain, and sounds good on lots and lots of stuff. When you need absolute transparent audio for the finest of sources the DACS Clarity Mic Amp delivers it above anything else we've used!"

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Average Customer Review 5 of 5 Total Reviews: 1

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  0 of 0 people found the following review helpful:
 
As Good as Your Source January 13, 2010
Reviewer: Mr Me from San Francisco, CA USA  
"hyper accurate" is a common term used for this and it's a good one. You can go to other pro reviews for the details but I have very high praise for this preamp. It does not polish the signal but it will not make the signal any worse than it was before it came in. It has gobs of clean low noise gain for any kind of mic including ribbons, and sitting between colored mics and a colored compressor it can be a great studio tool for various types of music if you want to experiment. The layout is clean, simple, and well done; and I like the seperate inputs for phantom and non-phantom mics. It's a no BS tool that records what you put into it.

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