Connecting the A-9755/A-9555, Connecting Your Speakers

Connecting the A-9755/A-9555

Connecting Your Speakers

Speaker Connection Precautions

You can connect one or two sets of speakers (A/B) to the A-9755/A-9555, and select which set outputs sound, or use both sets at the same time.

For both speakers A and B, make sure to connect them with Left and Right in pairs. If you connect either Left or Right channel alone, no sound output will be avail- able. If the electrical contact is poor for the connection, the Volume indicator will ﬂash quickly when the power is supplied.

•Connecting one set of speakers (A or B): Only con- nect speakers with an impedance of 4 ohms or more but less than 16 ohms. If you use speakers with a lower impedance, and use the A-9755/A-9555 at high volume levels for a long period of time, the built-in protection circuit may be activated.

•Connecting two sets of speakers (A and B): Only connect speakers with an impedance of 8 ohms or more but less than 16 ohms. If you use speakers with a lower impedance, and use the A-9755/A-9555 at high volume levels for a long period of time, the built-in protection circuit may be activated.

•Disconnect the power cord from the wall outlet before making any connections.

•Read the instructions supplied with your speakers.

•Pay close attention to speaker wiring polarity. In other words, connect positive (+) terminals only to positive

(+) terminals, and negative (–) terminals only to nega- tive (–) terminals. If you get them the wrong way around, the sound will be out of phase and will sound unnatural.

•Unnecessarily long or very thin speaker cables may affect the sound quality and should be avoided.

•Be careful not to short the positive and negative wires.

Doing so may damage the A-9755/A-9555.

• Don’t connect more than one cable to each speaker termi- nal. Doing so may damage the A-9755/A-9555.

•Don’t connect a speaker to more than one pair of speaker terminals.

Connecting the Speaker Cables

1	Strip about 15 mm (5/8	15 mm
1	inch) of insulation from	(5/8")
	inch) of insulation from
	the ends of the speaker
	cables, and twist the bare
	wires tightly, as shown.
2	Unscrew the terminal.
3	Fully insert the bare
	wires.
4	Screw the terminal tight.

The following illustration shows which speaker should be connected to each pair of terminals.

Right		Speaker set A	Left
speaker
		speaker
–	+	–	+

A-9755/A-9555
–	+		–	+
Right		Speaker set B		Left
speaker			speaker

A-9755, 9555 specifications

The Onkyo 9555 and A-9755 are two notable models in the world of high-fidelity audio, representing a blend of technological innovation and classic design principles that appeal to audiophiles and casual listeners alike.

The Onkyo 9555 integrates a powerful amplifier with advanced features suitable for both home theater systems and stereo setups. One of its main highlights is the incorporation of a high-current amplifier design, which ensures optimal driving power for various speakers, making it capable of delivering clear sound even at high volumes. With a RMS power output typically ranging from 50 to 100 watts per channel, it provides a robust performance that can fill larger rooms with immersive audio.

Equipped with a range of input options including digital coaxial and optical inputs, as well as traditional analog connections, the Onkyo 9555 offers flexibility for connecting multiple audio sources. The inclusion of a built-in phono stage also allows for direct connection of turntables, catering to vinyl enthusiasts who appreciate the warmth and character of analog sound. The model features customizable equalization settings, enabling users to tailor their listening experience to personal preferences or room acoustics.

Similarly, the A-9755 carries forward Onkyo’s commitment to superior sound quality, further enhancing user experience with its sophisticated circuitry. Notably, the A-9755 employs a highly precise 192 kHz/24-bit DAC, elevating digital audio playback to a new level of clarity and detail. This is complemented by a variable loudness control, which adjusts frequency response based on listening levels, ensuring consistent sound quality whether you're enjoying soft background music or cranking up the volume for a party.

Both models are designed with solid build quality and user-friendly interfaces, often featuring rotary knobs and clearly labeled buttons that enhance usability. Additionally, the aesthetically pleasing design fits well in both modern and traditional environments.

In conclusion, the Onkyo 9555 and A-9755 are strong contenders in the high-fidelity audio market, offering powerful amplification, versatile input options, and advanced technologies catering to diverse listening preferences. Whether for critical listening or casual enjoyment, these models are worthy of consideration for anyone looking to elevate their audio experience.