John Siau tears down a Benchmark HPA4 Headphone Amplifier and LA4 Line Amplifier to show us what is inside. Fully-balanced 256-step relay-controlled attenuators, feed-forward error correction and much more.
Products Discussed in this Video
The Benchmark HPA4 Headphone Amplifier
- THX-888 Headphone Amplifier featuring Feed-Forward Error Correction
- Entire Signal Path is Relay Controlled
- 256-Step Relay-Controlled Volume
- Lowest Noise, Lowest Distortion Preamplifier Available
- International Power Supply
- High Power Headphone Output
- Independent Line-Level Output
- Certified for Pro or Hi-Fi Applications
- Supports full Studio-Level Balanced Inputs and Outputs
- 0.1 Hz to 500 kHz Bandwidth
The Benchmark LA4
- Identical to the HPA4, but without the Headphone Amplifier
