Onkyo A-9150 Owners Manual - English - Page 13
Bi-wiring Connection
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Note • Make sure that the wires do not touch metal parts on the back panel or elsewhere. • Y plugs cannot be connected. • Two sets of speakers (Speakers A and Speakers B) can be connected to the integrated amplifier. You can select which speakers to output audio to when listening to music. You can also output audio from both sets of speakers. • If you use Speakers A or Speakers B, make sure to use speakers with an impedance of 4 to 16 ohms. If you use Speakers A and Speakers B, make sure to use speakers with an impedance of 8 to 16 ohms. Connecting speakers with an impedance less than 8 ohms may cause the protection circuit to activate. • When using only one speaker, or when playing back monaural audio, don't connect a single speaker to both the left and right speaker terminals. • Pay close attention to speaker wiring polarity. In other words, connect positive (+) terminals only to positive (+) terminals, and negative (-) terminals only to negative (-) terminals. If you get them the wrong way around, the sound will be out of phase and will feel unnatural. • Be careful not to short the positive and negative wires. Doing so may damage the integrated amplifier. • Make sure the metal core of the wire does not have contact with the integrated amplifier's rear panel. Doing so may damage the integrated amplifier. Bi-wiring Connection Bi-wiring provides improved bass and treble performance. Using terminals of both SPEAKERS A and SPEAKERS B, it separates high frequency from low frequency signals. Important: • Bi-wiring can be used only with speakers that support biwiring and that have an impedance of 4-16 ohms. • When making the bi-wiring connections, be sure to remove the jumper bars that link the speakers' tweeter (high) and woofer (low) terminals. • When making the bi-wiring connections, set SPEAKERS to A+B (Ä page 22). Integrated Amplifier • Don't connect more than one speaker wire to a single speaker terminal. Doing so could damage the integrated amplifier or cause it to malfunction. Tweeter (high) Woofer (low) Right speaker Left speaker Tip • As shown on the illustration, the wiring terminals of SPEAKERS A are connected to the woofer and SPEAKERS B are connected to the tweeter. However, wiring them the other way around is also possible. En 13