Test Methodology:The configuration is loaded with a twin tone in the signal generator, with two high frequency tones (19kHz + 20kHz) at amplitudes of -7dBFS each, and separated in frequency by 1kHz. The analyzer measuring the first-order difference frequency at 1kHz using a highly-selective FFT-based filter.
Test Results:Conclusion:The following test results show that the IMD distortion of the Ultimate Preamplier is exceedingly low and betters the performance of the DEQX Pre-mate by a long margin !