NS-777/NS-555/NS-333/NS-C444 NEW PRODUCT BULLETIN
Digital Home Theater EF-Series Speaker Systems
NS-777/NS-555/ NS-333/NS-C444
High performance speakers designed for home theater systems. The EF (Elliptical Form) Series feature Waveguide horns, PMD (Polymer-injected Mica Diaphragm) woofers and highest quality internal Monster Cable wiring for total enjoyment of digital movie sound and music sources, plus elegant Yamaha traditional piano finish cabinets.

NS-555

3-Way Bass-Reflex Tower Speaker System

NS-777

NS-C444
2-Way Dual-Woofer Acoustic Suspension Center Channel Speaker System

NS-333

2-Way Acoustic Suspension Speaker System
EF Speakers Add Elegance as well as Rich, High Clarity Sound to Any Home Theater System

1/4 (U)

The Beautiful Form Encloses Superior Parts and Technology for Reproducing Pure Digital Sound.
High sensitivity and wide dynamic range for contemporary digital sources Waveguide horn allows the sound field to be shaped and controlled for optimal spatial expression in home theater environments PMD (Polymer-injected Mica Diaphragm) cone woofer combines highperformance materials and design for extreme accuracy Highest quality internal Monster Cable wiring High frequency response dome tweeter delivers clear, natural highs Bi-wiring connectivity

(NS-777/NS-555)

EF Series Has Been Upgraded for Higher Performance!
The PMC (Polymer-injected Mica Diaphragm) Series was a great success, proving popular with consumers and winning awards for excellence around the world. The new EF (Elliprical Form) Series is designed to build on that success, offering even higher performance combined with an elegant Yamaha traditional piano finish cabinet. The woofers, tweeters and cabinets have been refined and improved, and even the wiring has been upgraded, with Monster Cable being used to connect woofer and crossover network. The result is superb audio quality with music sources and the latest 6.1 and 5.1 channel movie soundtracks. Its the latest in home theater speaker design, from the leader in home theater: Yamaha.
Behind EF Series Superiority: the Waveguide Horn Conventional direct-radiating home speakers have broad directional characteristics that result in a relatively high proportion of reflected sound (you hear a lot of sound that has bounced off walls). Movie theaters, however, are designed to have a highly absorptive acoustic environment so multichannel soundtracks provide a rich sense of spatial expression. To achieve the same effect in the home, therefore, it is necessary to use speakers with a direct/reflected sound ratio quite different from ordinary audio speakers. This is especially true in multi-speaker home theaters, where there would otherwise be lots of reflections. Yamaha accomplished this with the development of the Waveguide Horn, creating the ideal home theater speaker.
Beautiful Yamaha piano finish with elegant elliptical form

2/4 (U)

Flat High-Frequency Directional Characteristics of the Waveguide Horn Front
Diaphragm Physical Characteristic Density (g/cm3) PMD (Polymer-injected Mica Diaphram) Polypropylene Sheet Pulp Youngs Ratio (x10 kg4/cm2) Absorbed Vibration Ratio (tan ) Acoustic Velocity (m/sec)

0.9 0.46

1.5 1.6

0.06 0.03

1,300 1,870
(6 kHz) Rear Conventional Radiation Waveguide Horn Radiation (NS-777) High frequency directional characteristics of an installed Waveguide Horn speaker (red lines) and ordinary (blue lines). The Waveguide Horn speaker shows excellent balance in the front direction, with the surround effect to the sides and rear is not adversely affected by reflected sounds.
Shaping and Controlling the Sound Field Waveguide Horns differ from conventional speaker horns in that their waveguide features a horizontal control angle of 135 and a vertical control angle of 120. This allows the sound field to be shaped and controlled for optimal spatial expression in home theater environments. The Waveguide Horn also provides a much smoother frequency response than ordinary horns. PMD Cone Woofer Makes These Speakers Ideal for Home Theater Sound Home theater speakers must combine high power capabilities with excellent sensitivity and dynamic range, while being designed to prevent listening fatigue. The new EF Series speakers meet these
PMDs superior characteristics help ensure outstanding sound quality. In order to effectively reproduce digital sound, speakers must have the following capabilities: wide dynamic range, high efficiency, sensitive response, and high linearity suspension. The PMD used in the EF Series Speakers plays an important role in providing these capabilities. Its strong points are listed in the chart. Density affects the speed of signal transmission and shows the speakers excellent linearity. Youngs Ratio represents strength, resulting in high efficiency and sensitive response. Absorbed Vibration Ratio is the value of internal loss; the lower this value, the lower the signal loss, so it also contributes to high efficiency and sensitive response. And finally, Acoustic Velocity represents the overall velocity of signal transmission, an important element in reproducing digital sound. With all these properties, PMD is a material perfectly suited to achieving the highest, most natural sound quality. The goal of digital sound composers is sound creation that permits the reproduction of realistic sound, including dialogue and sound effects, and PMD helps make this possible.

requirements by using a PMD (Polymer-injected Mica Diaphragm) cone woofer. This Polymer-Injected diaphragm is Mica Microscope Photo composed of 30% high quality white Indian Pearl Mica, chosen for the significant contribution it makes to sound quality. In order to maximize its distinctive qualities, absolutely no coloring is added to the material. Weve also varied the cone thickness, making it thicker in the middle, which has been shown to improve performance. The cone is extremely light, yet also tough and durable, with excellent response speed. High Quality Monster Cable Extremely high quality wiring, from the well-known Monster Cable Products, is used internally in each speaker to connect the woofer and crossover network. High Frequency Response Dome Tweeter The proven capabilities and durability of this dome tweeter made
it the ideal choice for these speakers. It can reproduce frequencies up to 35kHz and is powerful. The diffuser over the tweeter helps improve frequency response and directionality. Bi-Wiring Connection Capability (NS-777 and NS-555) Bi-wiring means that instead of connecting the speaker to the amplifier or receiver with two cables (plus and minus), you can use four cables: two for the woofer(s) and two for the tweeter. This decreases modulation distortion for purer sound quality. Beautiful Yamaha Piano Finish with Elegant Elliptical Form As one of the worlds leading piano manufacturers, Yamaha has a long history of wood-working expertise. The EF Series speaker cabinets feature the same luxurious and environmentally fliendly finish as our fine grand pianos.

3/4 (U)

Main Specifications Type Woofers Mid-Range Driver Tweeter Magnetic Shielding Highest Quality Internal Monster Cable Wiring Bi-Wiring Connectivity Banana-Plug Compatible Terminals Frequency Response Sensitivity Input Power (Maximum/Nominal) Impedance Dimensions (W x H x D) Weight
NS-777 3-way bass-reflex Dual 20cm (8) PMD cone 13cm (5) cone with Waveguide horn 2.5cm (1) Aluminum dome with Waveguide horn Yes Yes Yes Yes 3035,000 Hz 89 dB/0.283 V/1 m 250 W/100 W 6 ohms 276 x 1,100 x 390 mm 10-7/8 x 43-5/16 x 15-3/8 24.4 kg; 53.8 lbs.
NS-555 3-way bass-reflex Dual 16cm (6-1/4) PMD cone 13cm (5) cone with Waveguide horn 2.5cm (1) Aluminum dome with Waveguide horn Yes Yes Yes Yes 3535, 000 Hz 88 dB/0.283 V/1 m 250 W/100 W 6 ohms 222 x 980 x 345 mm 7-1/16 x 13-1/8 x 7-1/kg; 44.1 lbs.
NS-333 2-way bass-reflex 13cm (5) PMD cone

NS-C444 2-way acoustic suspension Dual 13cm (5) PMD cone
2.5cm (1) Aluminum dome with Waveguide horn Yes Yes Yes 6535,000 Hz 87 dB/0.283 V/1 m 150 W/60 W 6 ohms 200 x 320 x 213 mm 7-7/8 x 12-5/8 x8-3/8 5.5 kg; 12.1 lbs.
2.5cm (1) Aluminum dome with Waveguide horn Yes Yes Yes 5535,000 Hz 89 dB/0.283 V/1 m 250 W/100 W 6 ohms 514 x 190 x 213 mm 20-1/4 x 7-1/2 x 8-3/8 7.3 kg; 16.1 lbs.
For details please contact:
Dolby Digital and Double D are trademarks of Dolby Laboratories Corporation. DTS and DTS Digital Surround are trademarks of Digital Theater Systems, Inc. Screen images are simulated. Product designs and specifications are subject to change without notice.
Visit us at our website: http://www.yamaha.co.jp/

YAMAHA CORPORATION

P.O.Box 1, Hamamatsu, Japan
P10001373-NS777/555/333/C444@318

4/4 (U)

Digital Home Theater Speakers

HX Series

Home Theater Reference Speaker Systems

515 PMD Series

Home Theater Speaker Systems
We developed the HX Series as a home theater reference speaker system worthy of the Yamaha name. With a Waveguide horn for superior spatial expression, light and stiff white spruce diaphragms (WSD), 3-way mitered cabinets and more, these are the ultimate choice for top quality home theater enjoyment.
PMD Series speakers are designed to bring out the full potential of high-performance digital sound sources. They use PMD (Polymer-injected Mica Diaphragm) cone woofers and other high quality parts to achieve sensitive response. They will also look impressive in any home theater or audio listening room.
The YST-SW515 is designed to acoustically match the speakers in the 515 PMD Series, and is recommended to be sold together with them (Specifications are on p.24).

NS-8HX

3-Way Dual Woofer Bass-Reflex Speaker System

NS-6HX

3-Way Bass-Reflex Speaker System

NS-2HX

2-Way Bass-Reflex Speaker System

NS-C7HX

2-Way Dual Woofer Acoustic Suspension Center Speaker System

NS-515F

NS-M515

NS-C515

2-Way Dual-Woofer BassReflex Center Speaker System

YST-SW515

Advanced YST II and QD-Bass Subwoofer

EF Series

225 PMD Series
High performance speakers designed for home theater systems. The EF (Elliptical Form) Series feature Waveguide horns, PMD (Polymer-injected Mica Diaphragm) woofers and highest quality internal Monster Cable wiring for total enjoyment of digital movie sound and music sources, plus elegant Yamaha traditional piano finish cabinets.
These slim, high-performance speaker systems are exactly what todays home theater enthusiasts are looking for. Their luxurious open pore finish is matched by powerful, accurate sound reproduction from PMD cone woofers and aluminum-magnesium dome tweeters with DC-Diaphram (integrated diaphragm and voice coil).
The YST-SW225 is designed to acoustically match the speakers in the 225 PMD Series, and is recommended to be sold together with them (Specifications are on p.24).

NS-777

3-Way, 4-Speaker Dual Woofer Bass-Reflex Speaker System HX Series Speaker Systems Woofers Midrange Driver Tweeter Magnetic Shielding Input Power (Max/Nominal) Frequency Response Sensitivity Impedance Edge-Wound Rectangular Voice Coil Full Three-Way Mitered Construction Dimensions (W x H x D) Weight EF Series Speaker Systems Woofers Midrange Driver Tweeter Magnetic Shielding Bi-Wiring Connectivity Input Power (Max/Nominal) Frequency Response Sensitivity Impedance Dimensions (W x H x D) Weight

NS-555

3-Way, 4-Speaker Dual Woofer Bass-Reflex Speaker System NS-8HX Dual 20cm WSD cone 13cm WSD cone with Waveguide horn

NS-333

NS-C444
2-Way Dual Woofer Acoustic Suspension Center Speaker Systems NS-2HX 13cm WSD cone 3cm aluminum dome with Waveguide horn Yes 200 W/60 W 60 Hz50 kHz 90 dB/2.83 V/1 m 6 ohms Yes Yes 186 x 316 x 189 mm 6 kg/unit NS-333 13cm PMD cone 2.5cm aluminum dome with Waveguide horn Yes 150 W/60 W 65 Hz35 kHz 87 dB/2.83 V/1 m 6 ohms 200 x 320 x 213 mm 5.5 kg/unit NS-C7HX Dual 16cm WSD cone 3cm aluminum dome with Waveguide horn Yes 300 W/100 W 45 Hz50 kHz 91 dB/2.83 V/1 m 6 ohms Yes Yes 549 x 217 x 318 mm 15 kg NS-C444 Dual 13 PMD cone 2.5cm aluminum dome with Waveguide horn Yes 250 W/100 W 55 Hz35 kHz 89 dB/2.83 V/1 m 6 ohms 514 x 190 x 213 mm 7.3 kg

NS-225F

NS-M225
2-Way Acoustic Suspension Speaker System

NS-C225

2-Way Dual-Woofer Acoustic Suspension Center Speaker System

YST-SW225

Advanced YST II and QD-Bass Subwoofer NS-M515 13cm PMD cone 3cm aluminum dome Yes Yes NS-C515 Dual 13cm PMD cone 3cm aluminum dome Yes Yes Yes 300 W/100 W 57 Hz-50 kHz 90 dB/2.83 V/1 m 6 ohms 500 x 170 x 218 mm 8 kg NS-C225 Dual 8cm PMD cone 3cm aluminum-magnesium dome Yes
NS-6HX 20cm WSD cone 13cm WSD cone with Waveguide horn 3cm aluminum dome with Waveguide horn Yes 300 W/100 W 45 Hz50 kHz 91 dB/2.83 V/1 m 6 ohms Yes Yes 364 x 1,062 x 397 mm 29 kg/unit NS-555 Dual 16cm PMD cone 13cm cone with Waveguide horn 2.5cm aluminum dome with Waveguide horn Yes Yes 250 W/100 W 35 Hz35 kHz 88 dB/2.83 V/1 m 6 ohms 222 x 980 x 345 mm 20 kg/unit
3cm aluminum dome with Waveguide horn Yes 400 W/140 W 35 Hz50 kHz 92 dB/2.83 V/1 m 6 ohms Yes Yes 364 x 1,102 x 397 mm 32.5 kg/unit NS-777 Dual 20cm PMD cone 13cm cone with Waveguide horn 2.5cm aluminum dome with Waveguide horn Yes Yes 250 W/100 W 30 Hz35 kHz 89 dB/2.83 V/1 m 6 ohms 276 x 1,100 x 390 mm 24.4 kg/unit
Woofers Tweeter Magnetic Shielding Gold-Plated Speaker Terminals Bi-Wiring Connection Capability Round-Shaped Bass Anchor Input Power (Max/Nominal) Frequency Response Sensitivity Impedance Dimensions (W x H x D) Weight

NS-515F 16cm PMD LF cone and16cm PMD subLF cone 3cm aluminum dome Yes Yes Yes Yes 300 W/100 W 40 Hz-50 kHz 90 dB/2.83 V/1 m 6 ohms 200 x 1,000 x 328 mm 21 kg/unit NS-225F Dual 8cm PMD -cone 3cm aluminum-magnesium dome Yes Yes Yes Yes 120 W/40 W 60 Hz50 kHz 86 dB/2.83 V/1 m 6 ohms 230 x 1,050 x 236 mm 7.7 kg/unit
200 W/60 W 60 Hz-50 kHz 89 dB/2.83 V/1 m 6 ohms 180 x 333 x 184 mm 5 kg/unit NS-M225 Quad 6.5cm PMD cone 3cm aluminum-magnesium dome Yes
Woofers Tweeter Magnetic Shielding Twin Bass Reflex Ports Round-Shaped Bass Anchor Luxurious Real Wood, Open Pore Finish Input Power (Max/Nominal) Frequency Response Sensitivity Impedance Dimensions (W x H x D) Weight
Yes 120 W/40 W 65 Hz50 kHz 86 dB/2.83 V/1 m 6 ohms 107 x 360 x 134 mm 2.4 kg/unit
Yes 120 W/40 W 65 Hz50 kHz 86 dB/2.83 V/1 m 6 ohms 440 x 94 x 133 mm 2.8 kg