Performance Measurements

Would you like to know how well your audio circuit performs? Wonder if your circuit meets the published specifications? Ship it to Neurochrome and find out.

Neurochrome offers performance testing of audio circuits. We use an Audio Precision APx 525 for performance testing the circuits. This instruments covers the frequency range of 10 Hz to 80 kHz, has a THD+N floor of -112 dB (1 kHz), and a noise floor of nearly -160 dBV. For frequency response measurements outside the 10 Hz – 80 kHz range, we employ an HP 3563A Dynamic Signal Analyzer (DC – 100 kHz) and an HP 3577A Network Analyzer (5 Hz – 200 MHz).

The three levels of performance testing are tabulated below. If what you need is not covered by any of our Performance Test packages, please contact us. We will be happy to work with you to design a performance test to suit your specific needs.

Two THD+N vs Frequency and two THD+N vs Output Level measurements are included with each test suite. These measurements will be configured to meet your needs. A common configuration is to measure THD+N vs Frequency at 1 W and max. output power as well as THD+N vs Output Level for 4 Ω and 8 Ω load.

Performance Test Definitions

The customer is responsible for all shipping and customs costs associated with shipping the circuit to and from Neurochrome’s location in Calgary, Canada.