Yamaha S115IV User Manual

SPEAKER SYSTEMS
S112 IV /S115 IV
SM10 IV /SM12 IV /SM15 IV
S112 IV -OAK
S115 IV A -OAK
SM10 IV-OAK /SM15 IV -OAK
SUBWOOFER
SW118 IV
CROSSOVER NETWORK
PN90
Owner’s Manual
Mode d’emploi
Bedienungsanleitung
Manual de instrucciónes
Thank you for purchasing a YAMAHA product. To obtain
maximum performance from your YAMAHA speaker system
and ensure many years of trouble-free operation, we recommend
that you read this Owner’s Manual thoroughly before use.
Contents
Precautions ......................................................................2
Connecting the Speakers ................................................4
Specifications...................................................................6
Technical Data ...............................................................25
P.O. Box 1, Hamamatsu, Japan

Yamaha S115IV Specifications

General

Brand	Yamaha
Model	S115IV
Category	Speaker System
Language	English

Summary

Precautions

Environmental and Connection Precautions

Avoid environmental hazards, ensure proper power handling, and secure connections before operation or movement.

System Power Up and Down Sequence

Turn the amplifier on last and off first to prevent loud pops and potential damage to speakers.

Polarity Matching

Ensure correct speaker system connector polarity for a balanced sound field.

Speaker Protection Mechanisms

Information on protecting speakers from damage, including the self-resetting Poly Switch.

Connecting the Speakers

Connection Example 1

Illustrates audio connections for a standard setup using two speaker systems.

Daisy-Chaining Speakers

Explains parallel connection of speakers using input terminals, recommending a maximum of two per amplifier.

Phone Plug Wiring

Details the wiring for standard 1/4" phone jack input terminals.

Connection Example 2

Shows audio connections for a system using SW118IV Subwoofers and a PN90 Crossover Network.

Specifications

Technical Data

Frequency Response and Impedance

Graphs showing frequency response and impedance for different speaker models.

Horizontal Directivity

Polar plots illustrating the horizontal sound dispersion patterns at various frequencies.

Vertical Directivity

Polar plots illustrating the vertical sound dispersion patterns at various frequencies.