Yamaha S55 User Manual

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Yamaha S55 User Manual

SPEAKER SYSTEM

S55

OPERATION MANUAL MANUEL D’INSTRUCTION BEDIENUNGSANLEITUNG

Thank you for choosing the Yamaha S55 speaker system. The S55 is a compact two-way bass-reflex speaker system equipped with a 16 cm (6.5") woofer and a 2.5 cm (1") tweeter. From powerful bass to delicate high-frequency sounds, the system provides well-balanced high quality sound reproduction over the entire frequency range.

To obtain maximum performance from your Yamaha speaker system we recommend that you read this operation manual thoroughly.

CONNECTION

Connect the speaker cables from the input terminals on the rear of the system. The red input terminal on the system should be connected to the output terminal (+) on the power amplifier, and the black output terminal should be connected to the output (–). Incorrect polarity will impair bass sounds, producing an unnatural sound.

Press the lever

PRECAUTIONS

Be sure to turn the amplifier power OFF before attempting to connect the speakers.

To avoid distortion and possible damage to the speaker units, never drive the speakers with more than their maximum rated power.

The nominal impedance of the speaker system is 6 . Since the output characteristics of the amplifier vary depending on the load impedance, the load impedance has a tolerance. If you are expanding the speaker system, be sure to observe the range of specified amplifier load impedance.

When two or more speakers are driven by separate power amplifier channels, be sure that all speakers are connected in phase to avoid a loss in output level and sound quality.

This speaker system employs an anti-magnetic design. However, placing it very close to a TV may cause the color of the screen to become uneven. In this case, relocate the system further from the TV.

ABOUT THE PROTECTION CIRCUIT

The tweeter in this speaker system has an internal protection circuit that shuts off the tweeter when an excessive inputsignal is applied.

If the tweeter emits no sound (i.e., the sound lacks high frequency content), reduce the volume level of the amplifier immediately. The sound will return automatically in several seconds.

SPECIFICATIONS

Speaker Unit

 

LF: 16 cm (6.5") Cone

 

 

HF: 2.5 cm (1") Horn

 

 

 

Enclosure

 

Bass reflex

 

 

 

Frequency Range

 

60 Hz–40 kHz

 

 

 

Nominal Impedance

 

6 Ω

 

 

 

Sensitivity

 

90 dB SPL (1watt, 1m)

 

 

 

Power Capacity :

Noise

70 watts

 

PGM

140 watts

 

Max

250 watts

 

 

 

Crossover Freq.

 

2.5 kHz

 

 

 

Protection circuit

 

Automatic return type

 

 

 

Connectors

 

Push terminal

 

 

 

Dimensions (W × H ×

D)

370 × 250 × 215 mm

 

 

 

Weight

 

6 kg

 

 

 

* Design and specifications are subject to change without notice.

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