The Classé Delta PRE stereo preamplifier user manual provides setup, operation, network streaming, and technical specifications.
This manual guides you through installing and configuring the Classé Delta PRE stereo preamplifier/processor. It covers unpacking, placement, warm‑up, power requirements, and detailed front‑panel and rear‑panel functions.
The guide also explains menu navigation, audio source selection, network streaming via AirPlay and DLNA, firmware updates, and provides full technical parameters and troubleshooting tips. This manual is written in Chinese.
| Gain range | -93 dB to +14 dB |
|---|---|
| Input impedance (1 kHz, single‑ended/balanced) | 50 kΩ |
| Output impedance (single‑ended) | 50 Ω |
| Output impedance (balanced) | 200 Ω |
| Maximum output level (single‑ended) | 9 Vrms |
| Maximum output level (balanced) | 18 Vrms |
| Frequency response | 5 Hz – 90 kHz (-3 dB) |
| Harmonic distortion | < 0.0015 % (20 Hz–20 kHz) |
| Dynamic range | 124 dB |
| Signal‑to‑noise ratio | 125 dB (A‑weighted) |
Press the Standby/ON button; the LED turns green then white while the unit powers up.
Allow a 72‑hour break‑in period for the unit to reach its normal operating temperature and performance.
Copy the firmware file to a USB flash drive and insert it into the front‑panel USB host connector, then follow the Firmware Update menu.
The rear‑panel Ethernet port supports Apple AirPlay and DLNA for streaming audio.