AcSoft
Svantek UK

AmpConnect ISC

AmpConnect ISC is a complete, self-contained audio measurement interface which provides a complete solution for measuring speakers, headphones and microphones. Replacing multiple hardware devices, AmpConnect ISC connects to your computer via a single USB cable and is fully integrated with SoundCheck. The initial setup is fully automated; SoundCheck automatically detects when an AmpConnect ISC is connected and reads the factory programmed calibration data – no user intervention is required.

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    In addition to the audio interface, AmpConnect ISC also provides microphone power, drives speakers and headphones, and includes impedance measurement circuits. Further features include automated control of signal routing, input gain and instrument configuration. Especially useful is complete integration peak level detection and automatic input gain control. When used with SoundCheck the input gain is automatically optimised for every acquisition.

    AmpConnect’s simple setup and compact package make it ideal for production line applications. The digital I/O ports can be used for communicating with relay boards, lighted pass/fail indicators, footswitches and other devices. The front panel can be disabled, locked out, and the instrument controlled exclusively via SoundCheck to ensure that the hardware is always configured correctly. Furthermore, automated output signal routing and dual microphone inputs allows AmpConnect to be configured to alternate between two test stations, maximising throughput.

    It also offers excellent functionality for the R&D lab. The two independently configurable signal routing options enable virtually any test to be realised – for example, they can be used for measuring impedance using the internal reference loads (and Listen’s patent-pending high accuracy single channel impedance measurement method), connecting the output of the power amp back to the soundcard for calibration, or sending reference or DUT signals to the outputs.

    Features include:

    • All components for testing loudspeakers, headphones and microphones in a single unit with just one USB connection to the computer
    • True plug and play operation and fully integrated with SoundCheck
    • Automated control via SoundCheck or manual control via the front panel interface.
    • Rugged and rack-mountable for demanding production environments
    • Excellent ground loop immunity compared to discrete components
    • Clear indications (software and LED) that microphone, DUT, and power amplifier levels are all operating within the maximum dynamic range
    • Unique patent-pending high accuracy single channel impedance measurement
    • CE Marked (please request CE Marked version at the time of order)

    Audio Interface

    2 Channel, balanced inputs and outputs, supports up to 44.1 kHz sample rate and 24 or 16 bits.
    Input Dynamic Range: 110 dB typical
    Output Dynamic Range: 114 dB typical
    Input/Output Coupling: AC
    Amplitude linearity: ± 0.3 dB
    Amplitude Flatness: 20 – 20 kHz ± 0.25 dB
    THD @ 1 kHz: 0.001% typical
    Crosstalk @ 1 kHz: -110 dB
    Phase Linearity: ± 5 degrees

    Power Amplifier:

    Continuous Output Power: 60W RMS into 4W, 47W RMS into 8W
    Frequency Response: -0.5dB at 20Hz; -0.2dB at 20kH
    THD at 60W, 4 Ohms: 0.019%
    Voltage Gain: +26.4dB, +/-0.1dB

    Loudspeaker Current Measurement:

    Z-High = 1V/A +/-1%
    Z-Low = 100mV/A +/-1%
    Output Impedance = 0Ω

    Internal Sine Generator


    Output Level: 0dBV (1V RMS) +/-0.1dB
    Output Frequency: 1kHz +/- 1Hz

    Reference & DUT Inputs:

    Gain: -20dB to +40dB in 10dB steps
    Maximum input at –20dB: 100V RMS
    Maximum input at +40dB: 100mV RMS
    Frequency Response: -3dB at 20Hz & 150kHz;
    IEPE Bias: 10mA, 20VDC (max)
    ECM / Electret Bias: 500mV – 12 VDC through 2.2kΩ

    USB 2.0 Interface:

    All front panel functions USB controllable
    Front panel can be locked out via USB
    Outputs automatically disabled upon USB disconnect or PC shutdown

    Physical:

    Without rack mounting flanges: 17 in. wide, 2-Unit (3-1/2 in.) high, 11 in. deep
    Weight: 7 lbs (3.2kgm) approx.
    Power: 85 – 264VAC 50/60 Hz, 150 Watts (max)

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