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These slim, high-performance speaker systems are exactly what today’s home theatre enthusiasts are looking
for. Their luxurious open pore finish is matched by powerful, accurate sound reproduction from PMD cone
woofers and aluminium-magnesium dome tweeters with DC-Diaphram™ (integrated diaphragm and voice coil).
NS-225F
2-Way Bass-Reflex
Speaker System
• Birch finish available
for YHT-640 (see p.33)
NS-M225
2-Way Acoustic
Suspension Speaker System
• Birch finish available
for YHT-640 (see p.33)
NS-C225
2-Way Dual-Woofer Acoustic
Suspension Centre Speaker System
• Birch finish available
for YHT-640 (see p.33)
YST-SW225
Advanced YST II and
QD-Bass Subwoofer
• Birch finish available
for YHT-640 (see p.33)
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.32).
225 PDM Series NS-225F NS-M225 NS-C225
Woofers Dual 8cm PMD cone Quad 6.5cm PMD cone Dual 8cm PMD cone
Tweeter 3cm aluminium-magnesium dome 3cm aluminium-magnesium dome 3cm aluminium-magnesium dome
Magnetic Shielding Yes Yes Yes
Twin Bass Reflex Ports Yes
Round-Shaped Bass Anchor Yes
Luxurious Real Wood, Open Pore Finish Yes Yes Yes
Input Power (Max/Nominal) 120 W/40 W 120 W/40 W 120 W/40 W
Frequency Response 60 Hz–50 kHz 65 Hz–50 kHz 65 Hz–50 kHz
Sensitivity 86 dB/2.83 V/1 m 86 dB/2.83 V/1 m 86 dB/2.83 V/1 m
Impedance 6 ohms 6 ohms 6 ohms
Dimensions (W x H x D) 230 x 1,050 x 236 mm 107 x 360 x 134 mm 440 x 94 x 133 mm
Weight 7.7 kg/unit 2.4 kg/unit 2.8 kg
EF Series NS-777 NS-555 NS-333 NS-C444
Woofers Dual 20cm PMD cone Dual 16cm PMD cone 13cm PMD cone Dual 13cm PMD cone
Midrange Driver
13cm cone with Waveguide horn 13cm cone with Waveguide horn
Tweeter 2.5cm aluminium dome 2.5cm aluminium dome 2.5cm aluminium dome 2.5cm aluminium dome
with Waveguide horn with Waveguide horn with Waveguide horn with Waveguide horn
Magnetic Shielding Yes Yes Yes Yes
Bi-Wiring Connectivity Yes Yes
Input Power (Max/Nominal) 250 W/100 W 250 W/100 W 150 W/60 W 250 W/100 W
Frequency Response 30 Hz–35 kHz 35Hz–35 kHz 60 Hz–35 kHz 55 Hz–35 kHz
Sensitivity 89 dB/2.83 V/1 m 88 dB/2.83 V/1 m 87 dB/2.83 V/1 m 89 dB/2.83 V/1 m
Impedance 6 ohms 6 ohms 6 ohms 6 ohms
Dimensions (W x H x D) 276 x 1,100 x 390 mm 222 x 980 x 345 mm 200 x 320 x 213 mm 514 x 190 x 213 mm
Weight 24.4 kg/unit 20 kg/unit 5.5 kg/unit 7.3 kg
High performance speakers designed for home theatre 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-777
3-Way, 4-Speaker Bass-
Reflex Speaker System
NS-555
3-Way, 4-Speaker Bass-
Reflex Speaker System
NS-333
2-Way Bass-Reflex
Speaker System
NS-C444
2-Way Acoustic Suspension Centre
Channel Speaker System
EF Series
Home Theatre Speaker Systems
225 PMD Series
Home Theatre Speaker Systems