Meier-Audio Corda PCSTEP

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RRP: $449.95

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CORDA PCSTEP - Made in Germany (Special Order Only)


Overview

The PCSTEP is a portable amplifier that, in addition to its analog input, also has a built-in USB-DAC. When connected to the USB-port of your PC it will strongly improve on the sound that is provided by a standard quality soundcard.

The amp has a discrete volume control (32 positions, two gain settings). This volume control is not a standard industrial solution but uses a concept in which the position of an analog potentiometer is measured using a low-power ADC and in which the output of this ADC is used to control electronic switches that set the volume level. The result is a very clean and detailed sound without any channel imbalances.

 

Specifications

  • Measures: 8.9 x 6.6 x 2.2 cm
  • Weight without battery: 115 gr.
  • Supply voltage: 6 .. (9) .. 15 Volts DC
  • Mean current uptake: 28 mA
  • Discrete volume control. Typical stepsize 1.5 dB, 31 steps.
  • Maximal amplification: -2 / 14 dB (low/high gain)
  • Input impedance: 120 kOhm / 19 kOhm
  • Output impedance: < 1 Ohm
  • The unit runs from a single 9V battery, 5V USB-power, or an external regulated powersupply (upto 15V). Internally the supply voltage is doubled to increase driving capacity.
  • Noise is removed by LC-filtering of the supply voltage.
  • Total buffer capacity is 1700 uF to lower the effective battery impedance.
  • For amplification two single OPA209 opamps are used for maximal sonic performance.(No dual or quad-opamps!)
  • The USB-DAC is based on the Burr-Brown PCM2702.
  • Resolution USB: 16 bit
  • Sampling frequencies USB: 32, 44, 48 kHz
  • The 3.5 mm sockets are silver-plated.
  • Inside the signal path only metal-resistors and high-quality film-capacitors are used (polypropylene).
  • The enclosure is made entirely of aluminium.
  • Accessories:..2 mini-mini interconnects (goldplated)
  • USB-cable
  • Tool to open the amp


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