Owner's Manual
NS-6900/7900/P7900
3 4
CONNECTING TO YOUR AMPLIFIER
SPECIFICATIONS
1
Remove the cover by pulling it toward you.
2
Tighten the terminal knob.
3
Simply insert the banana plug into the terminal.
Banana plug
REMOVING THE FRONT COVER OF
THE FRONT SPEAKER
The front cover is fastened to the enclosure at six points and
can be removed if desired. To remove the cover, hold on to
both sides and slowly pull straight away from the speaker. To
reattach, line up the six holes on the speaker with the six
corresponding pegs on the inner surface of the cover and
push gently.
Note
When the cover is removed, take care not to touch the
speaker units with your hands or to exert excessive
force with tools.
■ NS-7900
Type...
2-way bass reflex speaker system, Magnetically shielded type
Driver.........................................................16 cm cone woofer x 2,
2.5 cm soft dome tweeter
Impedance..................................................................................6 Ω
Frequency Response..........................................32 Hz to 25 kHz
Rated Input Power.................................................................50 W
Maximum Input Power.........................................................180 W
Sensitivity...............................................................88 dB/2.83 V/m
Crossover Frequency............................................................2 kHz
Dimensions (W x H x D)...........................195 x 1020 x 345 mm
Weight...................................................................................17.5 kg
■ NS-P7900
NS-C7900
Type......................2-way acoustic suspension speaker system,
Magnetically shielded type
Driver............................................................
8 cm cone woofer x 2,
2.5 cm balanced dome tweeter
Impedance..................................................................................6 Ω
Frequency Response..........................................70 Hz to 30 kHz
Rated Input Power..................................................................25 W
Maximum Input Power.........................................................100 W
Sensitivity...............................................................88 dB/2.83 V/m
Crossover Frequency.........................................................12 kHz
Dimensions (W x H x D) ............................ 395 x 130 x 150 mm
Weight.....................................................................................3.3 kg
NS-E7900
Type......................2-way acoustic suspension speaker system,
Magnetically shielded type
Driver...........................................................8 cm cone woofer x 1,
2.5 cm balanced dome tweeter
Impedance..................................................................................6 Ω
Frequency Response..........................................70 Hz to 40 kHz
Rated Input Power..................................................................20 W
Maximum Input Power............................................................80 W
Sensitivity..............................................................85 dB/2.83 V/m
Crossover Frequency.........................................................13 kHz
Dimensions (W x H x D) .......................... 130 x 217 x 150 mm
Weight.....................................................................................1.9 kg
• Specifications subject to change without notice due to
product improvements.
• Care should be taken not to exceed the input power values
noted above.
■ Using a banana plug
R
CENTER
SURROUND
FRONT
L
R
L
Black (–)
Red (+)
Bare wire
NS-6900/NS-7900
LeftRight
Amplifier
NS-6900/NS-7900
Insulation coating
Loosen
Tighten
R
CENTER
SURROUND
FRONT
L
R
L
Black (–)
Red (+)
Bare wire
NS-E7900
LeftRight
Amplifier
NS-C7900
Insulation
coating
Insert
Push
NS-E7900
Cover
3
■ NS-6900
Type...
2-way bass reflex speaker system, Magnetically shielded type
Driver.........................................................16 cm cone woofer x 1,
2.5 cm soft dome tweeter
Impedance..................................................................................6 Ω
Frequency Response..........................................34 Hz to 25 kHz
Rated Input Power..................................................................40 W
Maximum Input Power.........................................................150 W
Sensitivity...............................................................87 dB/2.83 V/m
Crossover Frequency............................................................4 kHz
Dimensions (W x H x D) ............................ 195 x 980 x 345 mm
Weight...................................................................................16.5 kg
NS-6900/NS-7900
■ Connections
• Connect the input terminals at the rear of the speakers to the speaker output terminals of the amplifier
with the speaker cable.
• Connect the (+) terminals on the amplifier and the speakers using one side of the cable. Connect the
(–) terminals on both components using the other side of the cable.
• Connect one speaker to the left (marked L) terminals of your amplifier, and another speaker to the right (marked R) terminals,
making sure not to reverse the polarity (+, –). If one speaker is connected with reversed polarity, the sound
will be unnatural and lack bass.
2
■ Connecting the front speaker
■ Connecting the center/surround speakers
1
YAMAHA ELECTRONICS CORPORATION, USA 6660 ORANGETHORPE AVE., BUENA PARK, CALIF. 90620, U.S.A.
YAMAHA CANADA MUSIC LTD. 135 MILNER AVE., SCARBOROUGH, ONTARIO M1S 3R1, CANADA
YAMAHA ELECTRONIK EUROPA G.m.b.H. SIEMENSSTR. 22-34, 25462 RELLINGEN BEI HAMBURG, GERMANY
YAMAHA ELECTRONIQUE FRANCE S.A. RUE AMBROISE CROIZAT BP70 CROISSY-BEAUBOURG 77312 MARNE-LA-VALLEE CEDEX02, FRANCE
YAMAHA ELECTRONICS (UK) LTD. YAMAHA HOUSE, 200 RICKMANSWORTH ROAD WATFORD, HERTS WD1 7JS, ENGLAND
YAMAHA SCANDINAVIA A.B. J A WETTERGRENS GATA 1, BOX 30053, 400 43 VSTRA FRLUNDA, SWEDEN
YAMAHA MUSIC AUSTRALIA PTY, LTD. 17-33 MARKET ST., SOUTH MELBOURNE, 3205 VIC., AUSTRALIA
Always turn off your amplifier before making any connections.
■ Before connecting
• Remove the insulation coating at extremity of each speaker cable by
twisting the coating off.
10-15 mm
Good
No Good
How to connect:
1 Loosen the knob.
2 Insert the bare wire core of the speaker cable into the
hole on the terminal.
3 Tighten the knob to secure the wire.
How to connect:
1 Press and hold the terminal tab.
2 Insert the bare wire core.
3 Release your finger from the tab to allow it to
lock securely on the bare wire core.
4 Test the security of the connection by pulling
gently on the cable at the terminal.
Note:
• Do not let uninsulated bare wires touch each other as this could damage
the speaker or the amplifier.
• Securely twist the bare wires and lump them together to prevent them
causing a short circuit.
NS-6900_7900_P7900_G_en.p65 7/12/06, 2:25 PM2