Zapco M-AT1


  • Microphone for DSP-IV AT Auto Calibration
  • Directivity: Omnidirectional
  • Frequency Response: 20Hz – 20KHz
  • Sensitivity (1KHz, 0dB=1V/1Pa): -44 dB
  • S/N (A-Weighted, 1KHz): 60 dBA
  • Output Impedance: 1KOhm
  • Operating Voltage: 4.5Vdc (10 max)
  • Current Consumption: 0.5 mA
  • Operating Temperature: -40° – +70°
  • Cable Length: 3 mt
  • Dimensions (mm): 190(L) x 21(O) x 12.5(O)


The DSP-IV AT Series with AutoTune

Some years ago, Zapco introduced the new DSP-Z8 IV signal processor. It was designed to bring true audiophile sound quality to an affordable DSP. The DSP-Z8 IV provided sound quality superior to units costing even twice as much. The DSP-Z8 IV has been a true giant killer. But, as we have always said, and always will say, “We believe we can still do better”. We firstly presented the DSP-Z8 IV II, and this year we present the Zapco DSP-Z8 IV AT and the ADSP-Z8 IV-6AT Amplifier. What’s new with the Series IV AT? New features and new control. The sharp look matching the Black and Copper theme of the AP amplifiers is only the beginning.

New features, new control… even improved sound quality.


Auto Calibration

The DSP IV AT series processors give you automatic Calibration for Equalization, Phase, and Signal Delay, when you add the optional calibrated tuning microphone. You can choose which function of functions you wish to have the system calibrate and you can choose which channels you wish to include in the calibration. In the Graph area you can see what the system is doing by looking at the Speaker curves and/or the Equalization curves, and you can turn the target curve on or off. Calibrating all channels for all functions can typically 5 to 10 minutes to do automatically what you might spend several hours doing.

Of course it is the human ear that will always be the final judge, but the auto tuning puts you at the point where you can do just the final tweaks and sit back and enjoy the music.



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