Key facts
- Brand
- Onkyo
- Model
- TX-NR900
- Category
- Audio-Video Decoder
- Industry
- Electronics
- Documents
- 2
- Languages
- JA · ZH
- Last added
- 2026-09-29
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Onkyo TX-NR900 Receiver User Manual
This manual covers safety precautions, installation steps, and wiring guidelines for the Onkyo TX‑NR900 AV receiver. It explains how to connect power, speakers, and external audio/video sources, and how to configure the remote control and on‑screen menus.
The document also includes detailed specifications, audio adjustment options, network and streaming features, and troubleshooting tips to help users achieve optimal performance from the receiver. This manual is written in Japanese.
Onkyo TX-NR900 specifications
| Power Output (per channel) | 110 W RMS |
|---|---|
| Frequency Response | 20 Hz–20 kHz |
| Total Harmonic Distortion | ≤0.08 % |
| Channels | 7.1‑channel |
All Onkyo TX-NR900 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
Can I use a power cord from another model with the TX‑NR900?
No, only the power cord supplied with the TX‑NR900 should be used; other model cords are not compatible.
What type of batteries does the remote control require?
The remote uses AA (R6 or UN‑3) batteries, inserted with the correct polarity.
How do I install batteries in the remote control?
Open the battery compartment, insert two AA (R6 or LR6) batteries with correct polarity, and close the cover.
What is the maximum continuous power per channel?
The receiver delivers up to 110 W RMS per channel into an 8 Ω load.