Yamaha MS-101 Owners Manual

MONITOR SPEAKER
MS101
OPERATING MANUAL
II
Thank you for purchasing a Yamaha MS101 II Monitor Speaker. The MS101 II employs a 4 inch full-range speaker in a compact bass-reflex style cabinet. Its faithful sound reproduction capabilities make it ideal for home recording and personal practice. Since a magnetic field-cancelling speaker is used, the MS101 II can be placed next to a television or video monitor without causing interference, making it the perfect choice for Audio/Video system applications.
Explanation of Graphical Symbols
The lightning flash with arrowhead symbol, within an
equilateral triangle is intended to alert you to the presence of
uninsulated “dangerous voltage” within the product’s
enclosure that may be of sufficient magnitude to constitute a
risk of electric shock to persons.
The exclamation point within an equilateral triangle is
intended to alert you to the presence of important operating
and maintenance (servicing) instructions in the literature
accompanying the appliance.
SAFETY INSTRUCTIONS
1. Read Instructions — All the safety and operating instructions should be read before the appliance is operated.
2. Retain Instructions — The safety and operating instructions should be retained for future reference.
3. Heed Warnings — All warnings on the appliance and in the operat­ing instructions should be adhered to.
4. Follow Instructions — All operating and use instructions should be followed.
5. Water and Moisture — The appliance should not be used near water — for example, near a bathtub, washbowl, kitchen sink, laun­dry tub, in a wet basement, or near a swimming pool, and the like.
6. Carts and Stands — The appliance should be used only with a cart or stand that is rec­ommended by the manufacturer.
6A. An appliance and cart combination should
be moved with care. Quick stops, excessive force, and uneven surfaces may cause the appliance and cart combination to overturn.
7. Wall or Ceiling Mounting — The appliance should be mounted to a wall or ceiling only as recommended by the manufacturer.
8. Ventilation — The appliance should be situated so that its location or position does not interfere with its proper ventilation. For exam­ple, the appliance should not be situated on a bed, sofa, rug, or sim­ilar surface that may block the ventilation openings; or placed in a built-in installation, such as a bookcase or cabinet that may impede the flow of air through the ventilation openings.
9. Heat — The appliance should be situated away from heat sources such as radiators, heat registers, stoves, or other appliances (including amplifiers) that produce heat.
10. Power Sources — The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance.
11. Grounding or Polarization — The precautions that should be taken so that the grounding or polarization means of an appliance is not defeated.
12. Power-Cord Protection — Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the appliance.
13. Cleaning — The appliance should be cleaned only as recom­mended by the manufacturer.
14. Nonuse Periods — The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time.
15. Object and Liquid Entry — Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through open­ings.
16. Damage Requiring Service — The appliance should be serviced by qualified service personnel when:
A. The power-supply cord or the plug has been damages; or
B. Objects have fallen, or liquid has been spilled into the appli-
ance; or
C. The appliance has been exposed to rain; or
D. The appliance does not appear to operate normally or exhibits
a marked change in performance; or
E. The appliance has been dropped, or the enclosure damaged.
17. Servicing — The user should not attempt to service the appliance beyond that described in the operating instructions. All other servic­ing should be referred to qualified service personnel.
18. Attachments — Do not use attachments not recommended by the product manufacturer as they may cause hazards.
19. Power Lines — An outside antenna system should not be located in the vicinity of overhead power lines or other electric light or power circuits, or where it can fall into such power lines or circuits. When installing an outside antenna system, extreme care should be taken to keep from touching such power lines or circuits as contact with them might be fatal.
20. Overloading — Do not overload wall outlets, extension cords, or integral convenience receptacles as this can result in a risk of fire or electric shock.
21. Replacement Parts — When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer or have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock, or other hazards.
22. Safety Check — Upon completion of any service or repairs to this product, ask the service technician to perform safety checks to determine that the product is in proper operating condition.
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IMPORTANT NOTICE FOR
THE UNITED KINGDOM
Connecting the Plug and Cord
IMPORTANT:The wires in this mains lead are coloured in accordance with the following code:
Blue : NEUTRAL Brown : LIVE
As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows:
The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.
Making sure that neither core is connected to the earth terminal of the three pin plug.

Precautions

Warnings
1. Connect this unit’s power cord only to an AC outlet of the type stated in this Owner’s Manual or as marked on the unit. Failure to do so is a fire and electrical shock hazard.
2. Do not allow water to enter this unit or allow the unit to become wet. Fire or electrical shock may result.
3. Do not place heavy objects, including this unit, on top of the power cord. A damaged power cord is a fire and electri­cal shock hazard. In particular, be careful not to place heavy objects on a power cord covered by a carpet.
4. 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.
5. Do not remove the unit’s cover. You could receive an elec­trical shock. If you think internal inspection, maintenance, or repair is necessary, contact your dealer.
6. Do not modify the unit. Doing so is a fire and electrical shock hazard.
7. If lightning begins to occur, turn off the power switch of the unit as soon as possible, and unplug the power cable plug from the electrical outlet. If there is a possibility of lightning, do not touch the power cable plug if it is still connected. Doing so may be an elec­trical shock hazard.
8. If the power cord is damaged (i.e., cut or a bare wire is exposed), ask your dealer for a replacement. Using the unit with a damaged power cord is a fire and electrical shock hazard.
9. If you notice any abnormality, such as smoke, odor, or noise, or if a foreign object or liquid gets inside the unit, turn it off immediately. Remove the power cord from the AC outlet. Consult your dealer for repair. Using the unit in this condition is a fire and electrical shock hazard.
10.Should this unit be dropped or the cabinet be damaged, turn the power switch off, remove the power plug from the AC outlet, and contact your dealer. If you continue using the unit without heeding this instruction, fire or electrical shock may result.
OBSERVERA!
Apparaten kopplas inte ur växelströmskällan (nätet) så länge som den ar ansluten till vägguttaget, även om själva apparaten har stängts av.
ADVARSEL: Netspæendingen til dette apparat er IKKE afbrudt,
sålæenge netledningen siddr i en stikkontakt, som er t endt – også selvom der or slukket på apparatets afbryder.
VAROITUS: Laitteen toisiopiiriin kytketty käyttökytkin ei
irroita koko laitetta verkosta.
CONTENTS
Precautions ..........................................................1
Front Panel / Rear Panel......................................2
Example Set up.................................................... 3
Specifications ....................................................... 4
Block Diagram...................................................... 4
Dimensions ..........................................................5
Cautions
1. Keep this unit away from the following locations: Locations exposed to oil splashes or steam, such as near cooking stoves, humidifiers, etc. Unstable surfaces, such as a wobbly table or slope. Locations exposed to excessive heat, such as inside a car with all the windows closed, or places that receive direct sunlight. Locations subject to excessive humidity or dust accumula­tion.
2. Do not place the power cord close to a heater. It may melt,
causing fire or electrical shock.
3. Hold the power cord plug when disconnecting it from an AC
outlet. Never pull the cord. A damaged power cord is a potential fire and electrical shock hazard. Do not touch the power plug with wet hands. Doing so is a potential electrical shock hazard.
4. Use extreme caution when using a speaker stand and
speaker bracket.
5. To relocate the unit, turn the power switch off, remove the
power plug from the AC outlet, and remove all connecting cables. Damaged cables may cause fire or electrical shock.
6. Turn off all musical instruments, audio equipment, and
speakers when connecting to this unit. Use the correct con­necting cables and connect as specified. Always lower the volume control to minimum before turning on the power to this unit. A sudden blast of sound may damage your hearing.
7. Do not output distorted sounds for long periods of time, as this
will cause the speaker to heat up, leading to a fire hazard.
8. If you know you will not use this unit for a long period of
time, such as when going on vacation, remove the power plug from the AC outlet. Leaving it connected is a potential fire hazard.
9. To prevent electrical shock when cleaning the unit, remove
the power plug from the AC outlet.
10.To allow for the efficient release of heat, maintain a gap of 10 cm or more between the rear of the MS101 wall in addition to a gap of 20 cm or more between the top of the MS101 from other equipment. If the release of heat is insufficient, the heat will remain inside the device, and result in a fire.
and the ceiling. Locate the MS101
and the
away

Front Panel / Rear Panel

1
STANDBY/ON switch/indicator
Press this switch to switch the power between STANDBY and ON. When the power is turned on, the STANDBY/ON indicator comes on.
CAUTION: A small amount of electric current is flowing even when the power is in the STANDBY mode. When not using the MS101 II for an extended period of time, be sure to discon-nect the power cord from the AC outlet.
LOW control
2
Turn this control clockwise to boost low frequencies and counterclockwise to reduce them.
3
HIGH control
Turn this control clockwise to boost high frequencies and counterclockwise to reduce them.
4
VOLUME control
Use this control to set the volume level.
CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT.
5
MIC INPUT
A dynamic type microphone can be connected to this 1/4 inch phone jack.
Line 1 Input
6
The line level output from a CD player, DAT recorder, cas­sette recorder, or VCR can be connected to this RCA pin jack.
7
Line 2 Input
Any audio equipment that produces a line level output can be connected to this 1/4 inch phone jack, i.e., synthesizer, mixer, multitrack cassette recorder, effects unit, etc.
8
Line Out
A cassette recorder or DAT recorder can be connected to this 1/4 inch phone jack for recording. Input signals from the Mic, Line 1, and Line 2 inputs are mixed, then output here. Another MS101 II can be connected to this jack for parallel operation. The front panel volume knob doesn’t effect the volume level of this line out.
2

Example Set up

Make sure all your equipment is powered off, then connect the MS101 II s power cable to a suitable AC receptacle. Connect your other equipment, synthesizer, CD player, etc., to the MS101 II , then power on. There are many different ways in which the MS101 II s can be integrated into an audio system, two examples are shown below.
Microphones are connected to the MIC INPUTs, a keyboard is connected to the LINE 2 input, and a CD player is connected to the LINE 1 input allowing you to sing and play along with your favorite songs or even your own songs.
(Connect to the rear panel LINE INPUTs.)
MS1012 MS1012
Microphone
Microphone
Synthesizer
Cassette recorder
Stereo System (Tape player, CD player, etc.)
In this example, the monitor outputs of a Yamaha MD recorder Multitrack are connected to the LINE 2 inputs on a pair of MS101 II s for multitrack monitoring.
Multi-track MD recorder
3
Specifications
GENERAL SPECIFICATIONS
Type ....................................... Bass Reex Powered Speaker
Frequency Range .................. 75 Hz 18 kHz (LOW and HIGH controls at center)
Max. SPL ............................... 97 dB SPL (10 W, 1 m on axis)
Dimensions (W × H × D)........ 147 × 214 × 192 mm (5.8 × 8.4 × 7.6 in)
Weight....................................2.5 kg (5 lb 8 oz)
SPEAKER SECTION
Components .......................... JA1061 [10 cm (4 in), Cone] × 1
Sensitivity ..............................87 dB SPL (1 W, 1 m on axis)
Nominal Impedance............... 4 Ω
AMP. SECTION
Output Power......................... 10 W at 1 kHz, THD = 0.5%, RL = 4 Ω
Frequency Response.............30 Hz 20 kHz
Input Sensitivity .....................MIC: –45 dB / 2 k Ω / Phone Jack
/Impedance............................LINE 1: –10 dB / 10 k Ω / RCA Pin Jack
/Connectors LINE 2: –10 dB / 10 k Ω / Phone Jack
Hum & Noise ......................... –60 dB *(VOLUME: min, fc = 12.7 kHz, 6dB / oct LPF)
Controls ................................. VOLUME
Power Requirement ...............AC120 V, 60 Hz / US & CANADIAN Models
Power Consumption...............30 W
LOW: –15 dB — +7 dB at 75 Hz HIGH: –13 dB +8 dB at 10 kHz POWER: ON/OFF
AC230 240V, 50/60 Hz / Other Models
* 0 dB = 0.775 Vrms

Block Diagram

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