John Siau Conducts Two Seminars at CAF2025
"One does not often run into John Siau from Benchmark Media Systems at an audio show, and here at CapFest, John was conducting a couple of seminars on both DAC and power amplifier design. Here are a few shots from John’s DAC discussion, where he drilled down on the issues of Intersample Over distortion in DACs and how not every manufacturer properly designs their circuits to deal with this issue."

"At SECRETS, when we bench test DACs, we test for Intersample Over issues using a custom test tone that John provided us with."
- Carlo
John Siau Interview at CAF2025
"John was also kind enough to sit down with me for an interview. We discussed a few things, including what makes Benchmark DACs stand out from the crowd."
- Carlo
Video Contents:
0:00 Intersample Overs and Interpolator Overload Distortion in DACs
9:35 DAC Chipsets
12:59 DAC Filters
16:13 The Advantages of Professional vs. Consumer Signal Levels on XLR Connectors
17:42 Benchmark LA4 Relay-Controlled Preamplifier
18:53 Carlo Describes the Sound of His Benchmark Signal Chain (DAC3, HPA4, AHB2)
21:32 Ten AHB2 Amplifiers Powering the Krix Room at CAF2025


