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NS-515F/NS-M515/NS-C515 NEW PRODUCT BULLETIN
Digital Home Theater Speaker Systems
NS-515F NS-M515 NS-C515 High performance speakers designed for home theater systems. With high sensitivity and wide dynamic range for total enjoyment of digital movie sound, plus beautifully finished mahogany cabinets.
NS-515F 3-Way Bass-Reflex Speaker System
NS-M515 2-Way Bass-Reflex Speaker System
NS-C515 2-Way Dual-Woofer BassReflex Center Channel Speaker System
• The NS-515F, NS-M515 and NS-C515 are offered with a cherry and black finish available
Beautifully Crafted Speakers for Fine Home Theater Systems 1/4 (R)
Designed and Built to Maximize the Sensational Sound of Digital Audio and Video. 䡲 High sensitivity and wide dynamic range for contemporary digital sources 䡲 PMD (Polymer-injected Mica Diaphragm) cone woofer combines highperformance materials and design for extreme accuracy
Popular PMD Speakers Are Now Even Better! The original PMD Series was a great success, proving popular with consumers and winning awards for excellence around the world. The new 515 PMD Series is designed to build on that
䡲 Independent direct crossover connections (NS-515F)
success, offering even higher
䡲 Edge-wound rectangular voice coils for woofer (NS-515F)
Woofer, tweeter and cabinet have
䡲 Aluminum dome tweeter delivers clear, natural highs
music sources and the latest 6.1
䡲 Fully three-way mitered construction
home theater speaker design,
䡲 Mahogany veneer cabinets with glossy urethane protective finish
Yamaha.
performance combined with a handsome mahogany cabinet.
all been refined and improved, offering superb audio quality with
and 5.1 channel movie soundtracks. It’s the latest in
from the leader in home theater:
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 515 PMD Series speakers meet these requirements by using a PMD (Polymer-injected Mica Diaphragm) cone woofer. This diaphragm is 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. We’ve also varied the cone thickness, making it thicker in the middle, which has been shown to improve performance. Kapton bobbins help to increase S/N ratio. The cone is extremely light, yet also tough and durable, with excellent response speed. Independent Direct Polymer-Injected Crossover Networks Mica Microscope (NS-515F) Photo Crosstalk distortion that can result from signal interference between coils, cables and drivers is kept to an absolute minimum by using fully independent direct crossover connections between the speaker drivers. Edge-Wound Rectangular Voice Coils (NS-515F) TThe voice coils have an edge-wound, rectangular structure with a wire moment 20% higher than conventional round voice coils, significantly improving the efficiency with which they convert magnetic flux to motion.
䡲 Bass Anchor provides stability, dampens vibrations.
High-Strength Frame and High Linearity Suspension Because the woofer is so powerful, it requires an outstanding frame and
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NS-515F/NS-M515/NS-C515 NEW PRODUCT BULLETIN
Diaphragm Physical Characteristic
PMD (Polymer-injected Mica Diaphram) Polypropylene Sheet Pulp
Density (g/cm3)
Young’s Ratio (x10 kg4/cm2)
Absorbed Vibration Ratio (tan δ)
Acoustic Velocity (m/sec)
1.15
8.0
0.05
2,620
0.9 0.46
1.5 1.6
0.06 0.03
1,300 1,870
PMD’s 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 515 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. Young’s 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.
suspension. The high strength frame ensures that the sound image remains clear, with no distortion, while the high linearity suspension contributes to dynamic expression at both low and high volume levels.
Bass Reflex Ports These bass reflex speakers use two ports rather than the usual one. They are precisely tuned to achieve best low frequency response and higher attack speed.
3cm (1-1/8") Aluminum Dome Tweeter The proven capabilities and durability of this aluminum dome tweeter made it the ideal choice for these speakers. It can reproduce frequencies up to 50kHz (-10dB) and is powerful, too, thanks to the same type of strontium ferrite magnet used in the woofer (NS515F/NS-C515). The diffuser over the tweeter helps improve frequency response and directionality.
Full Use of Three-Way Mitered Construction Yamaha speakers have employed 45° mitered-joint construction at the cabinet corners and baffle/body joints for many years. On the 515 PMD Series, mitered construction is also used for the back panel, improving the tightness of the joints so the entire cabinet behaves as a single body. This improves low frequency response and reduces unwanted vibration. We’ve also used three different types of
absorbent material inside the cabinet to further dampen vibrations.
Three-Way Mitered Construction Baffle Board 45º
Side Board
Bass Conventional Mortised Construction Anchor (NS-515F) The Bass Baffle Board Anchor Conventional Mortising uses five steel plates to provide Side Board stable support and also dampen vibrations that can adversely affect sound quality. Bi-Wiring Connection Capability (NS-515F and NS-C515) 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. Mahogany Veneer Cabinets As one of the world’s leading piano manufacturers, Yamaha has a long history of wood-working expertise. The 515 PMD Series speaker cabinets are assembled from carefully selected mahogany and given the same luxurious and environmentally friendly urethane/polyester finish as our fine grand pianos.
16cm (6-1/4”) PMD Cone Woofer
3cm (1-1/8”) Aluminum Dome Tweeter
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NS-515F/NS-M515/NS-C515 NEW PRODUCT BULLETIN
Main Specifications Recommended Usage Type Woofers Tweeter Magnetic Shielding Edge-Wound Rectangular Voice Coils for Woofer Independent Direct Crossover Connections Gold-Plated Banana-Plug Compatible Terminals Bi-Wiring Connectivity Fully Three-Way Mitered Construction Frequency Response Sensitivity Input Power (Maximum/Nominal) Impedance Dimensions (W x H x D) Weight
NS-515F Main Channels 3-way bass-reflex design 16cm PMD LF cone and 16cm PMD subLF cone 3cm Aluminium dome Yes Yes Yes Yes Yes Yes 40–50,000 Hz 90 dB/0.283 V/1 m 300 W/100 W 6 ohms 200 x 1,000 x 328 mm 21 kg
NS-M515 Effect Surround Channels 2-way bass-reflex design 13cm PMD cone
NS-C515 Center Channel 2-way bass-reflex design Dual 13cm PMD cone
3cm Aluminium dome Yes
3cm Aluminium dome Yes
Yes
Yes Yes Yes 57–50,000 hz 90 dB/0.283 V/1 m 300 W/100 W 6 ohms 500 x 170 x 218 mm 8 kg
Yes 60–50, 000 Hz 89 dB/0.283 V/1 m 200 W/60 W 6 ohms 180 x 333 x 184 mm 5kg
• The NS-515F, NS-M515 and NS-C515 are offered with a cherry and black finish available
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 APB623R-NS515f/m515/c515@Y05
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