Yamaha NS-M325 User Manual

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Read this before using the speaker.
• To assure the finest performance, please read this
manual carefully. Keep it in a safe place for future
reference.
• Install the speaker in a cool, dry, clean place – away
from windows, heat sources, sources of excessive
vibration, dust, moisture and cold. Avoid sources of
humming (transformers, motors). To prevent fire or
electrical shock, do not expose the speaker to rain or
water.
• To prevent the enclosure from warping or discoloring, do
not place the speaker where it will be exposed to direct
sunlight or excessive humidity.
• Do not place the following objects on the speaker:
Glass, china, etc.
If glass etc. falls by vibrations and breaks, it may cause
personal injury.
A burning candle etc.
If the candle falls by vibrations, it may cause fire and
personal injury.
A vessel with water in it
If the vessel falls by vibrations and water spills, it may
cause damage to the speaker, and/or you may get an
electric shock.
• Do not place the speaker where foreign objects such as
water drips might fall. It might cause a fire, damage to
the speaker, and/or personal injury.
PRECAUTIONS
NS-M325
Speaker System
OWNER’S MANUAL
URGT
Thank you for selecting this YAMAHA NS-M325 speaker system.
• Do not place the speaker where it is liable to be knocked
over or struck by falling objects. Stable placement will
also ensure better sound performance.
• Placing the speaker on the same shelf or rack as the
turntable can result in feedback.
• Any time you note distortion, reduce the volume control
on your amplifier to a lower setting. Never allow your
amplifier to be driven into “clipping”. Otherwise the
speaker may be damaged.
• When using an amplifier with a rated output power
higher than the nominal input power of the speaker, care
should be taken never to exceed the speaker’s
maximum input.
• Do not attempt to clean the speaker with chemical
solvents as this might damage the finish. Use a clean,
dry cloth.
• Do not attempt to modify or fix the speaker. Contact
qualified YAMAHA service personnel when any service
is needed. The cabinet should never be opened for any
reasons.
• Secure placement or installation is the owner’s
responsibility.
YAMAHA shall not be liable for any accident caused
by improper placement or installation of the speaker.

Yamaha NS-M325 Specifications

Speaker System

speaker system type	2-way acoustic suspension
magnetic shielding type	Yes

Drivers

woofer size	10 cm (4")
tweeter size	3 cm (1")

Electrical Specifications

impedance	6 Ω
nominal input power	30 W
maximum input power	120 W

Performance

frequency response	65 Hz to 50 kHz (-10dB)
sensitivity	86 dB/2.83 V/m
crossover frequency	2.5 kHz

Weight and Dimensions

dimensions	150 x 275 x 175 mm (5-7/8” x 10-13/16” x 6-7/8”)
weight	3.8 kg (8 lbs. 6 oz.)

Summary

Speaker Precautions

Environmental and Placement Guidelines

Install in cool, dry, clean locations. Avoid direct sunlight, humidity, water, falling objects, and unstable surfaces.

Operational and Maintenance Safety

Manage amplifier output to prevent distortion/clipping. Clean with dry cloth; seek professional service for repairs.

User Responsibility and Liability

Ensure secure installation. Yamaha is not liable for accidents caused by improper placement or installation.

Speaker Placement Guide

Stereo and Multi-channel System Setup

Position speakers for optimal stereo imaging and multi-channel sound quality in various system configurations.

Wall Mounting Instructions

Securely mount speakers on walls using provided brackets or compatible commercial brackets.

Placement Warning

Avoid mounting on thin/soft surfaces or using unstable hardware; secure cables to prevent tripping hazards.

Amplifier Connections

Basic Speaker Wiring

Connect speaker terminals to amplifier outputs, ensuring correct polarity (+/-) for natural sound.

Banana Plug Connection

Instructions for connecting speakers using banana plugs for a secure and easy connection.

Connection Safety Note

Prevent bare speaker wires from touching to avoid damage to the speaker or amplifier.

Specifications and Cover Removal

Front Cover Removal

Gently remove the front cover, attached by magnets, taking care not to touch the drive units.

Speaker Technical Specifications

Details on speaker type, driver size, impedance, frequency response, power handling, sensitivity, and dimensions.

Cover Magnet Warning

Keep removed front cover away from magnetic-sensitive objects like TVs, clocks, and cards.