DSiefert
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- Mar 3, 2026
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- Main Amp
- Crown iTech 2000
- Universal / Blu-ray / CD Player
- Sony
- Front Speakers
- Siefert Research Maxim III
- Video Display Device
- LG 65" OLED
I am a retired loudspeaker engineer (retired 15 years ago). My goto measurement system was DRA MLSSA. Moving into the 21st century with REW. My setup is an ACER laptop, MiniDSP UMIK-1, a Crown 5507 power amp driving a 6" 2-way of my own design. When attempting a sine sweep test (20Hz~20kHz) the stimulus is heavily polluted with random pops and clicks, similar to a poor connection. Surprisingly, the resultant response curve looks quite normal! I substitute a function generator and the sound is clear. This only occurs when the computer is the source. Where am I going wrong? BTW: this is a nearly new laptop computer running Windows 11.
