Yamaha MS20S - Manual (Page 3)

FEATURES
Thank you for purchasing the Yamaha MS20S powered monitor speaker
system. Yarhaha's ongoing research in audio technology has resulted in the
YAMAHA Active Servo Technology used in the MS20S, providing a rev­
olutionary advance over previous speaker systems. This technology unifies
the construction of the ported cabinet and the negative output impedance
of the 20W amplifier, enabling superb reproduction of the low-frequency
range, together with a tight, weU-defined sound. Three inputs are provided,
allowing both microphone and line level (unbalanced) sources to be
connected. A 12cm cone woofer and 3cm cone tweeter in a bass reflex
enclosure provide a flat efficient response from low- to high-frequency
ranges. Efficient magnetic shielding allows the MS20S to be used even with
audio-visual components.
To ensure long and trouble-free use of your MS20S, please read this manual
carefully before use.
CONTENTS
FEATURES.................................................................................................................................................................. 1
PRECAUTIONS ......................................................................................................................................................... 1
FRONT PANEL/REAR PANEL ................................................................................................................................. 2
EXAMPLE SETUPS ................................................................................................................................................ 3
BLOCK DIAGRAM ................................................................................................................................................. 4
DIMENSIONS .............................................................................................................................................................. 4
GENERAL SPECIFICATIONS .................................................................................................................................... 5
PRECAUTIONS
1. Although the NS20S is fitted with magnetic shieiding to minimize 5.
interference to audio-visuai components, color distortion may
appear on a color TV or monitor if the MS20S is placed too
close. If this symptom is observed, increase the distance
between the TV/monitor and MS20S.
2. AVOID EXCESSIVE HEAT, HUMIDITY, DUST AND VIBRATION 6 .
Keep the unit away from locations where it is likely to be exposed
to high temperatures or humidity-such as near radiators, stoves,
etc. Also avoid locations which are subject to excessive dust 7
accumulation or vibration which could cause mechanical dam­
age.
AVOID PHYSICAL SHOCKS 8 .
Strong physical shocks to the unit can cause damage. Handle it
with care.
DO NOT OPEN THE UNIT OR ATTEMPT REPAIRS OR MODI­
FICATIONS YOURSELF
This product contains no user-serviceable parts. Refer all main- 9
tenance to qualified YAMAHA service personnel. Opening the
unit and/or tampering with the internal circuitry will void the war­
ranty. Do not remove the screws holding the metal grille to the
plastic cabinet. This will prevent accidental damage to the speak­
ers. To avoid accidental electric shock, avoid inserting anything
into the plastic case or the speaker reflex port.
3.
4 .
MAKE SURE POWER IS OFF BEFORE MAKING OR REMOV­
ING CONNECTIONS
Always turn the power OFF prior to connecting or disconnecting
cables. This is important to prevent damage to the unit itself as
well as other connected equipment.
HANDLE CABLES CAREFULLY
Always plug and unplug cables-including the AC cord-by grip­
ping the connector, not the cord.
CLEAN WITH A SOFT DRY CLOTH
Never use solvents such as benzine or thinner to clean the unit.
Wipe clean with a soft, dry cloth.
ALWAYS USE THE CORRECT POWER SOURCE
Make sure that the power source voltage specified on the rear
panel matches your local AC mains supply.
U.S. & Canadian Models: 120V AC, 60Hz
General Model: 220/240V AC, 50/60HZ
Do not place a container with liquid or small metal objects on top
of this unit. Liquid or metal objects inside this unit are a fire and
electrical shock hazard.