Audio Precision's 200 kHz Cascade Plus audio test and measurement system with Dual Domain capabilities is a PC-based performance enhancement to the company's award-winning System Two.

The system also includes an unmatched -112 dB specification for THD+N audio testing. Cascade Plus provides a high performance level with the 6-7 dB reduction in Audio Precision's already-low residual distortion that testing next generation converters will require.

Product enhancements to Cascade Plus include:

• Increased FFT acquisition memory to 4 MS-or greater than one minute of acquisition at 48 kS per second. Now you can pick out events spread over a large amount of time then zero in for an in-depth view of the event.
• Nth octave smoothing that provides smoothing widths of 0 to 2.6 octaves. Based on ANSI spec S1.11-1986, our Nth octave smoothing allows users to interpret test results faster than ever.

• A Programmable Serial Interface Adapter with full, soft programmable operation that assists engineers and testers with their digital audio circuit designs, and in testing and proving the design is working correctly.
• An improved AES-17 lowpass fitter to eliminate out-of-band D/A converter noise during testing.

• an Harmonic Distortion Analyzer
• a Multitone Analyzer
• a Serial Digital Interface Analyzer; and
• PC-based functionality.