Yamaha RX-Z9 manual YST-SW1500, YST-SW225, YST-SW215, YST-SW515, Subwoofers

Subwoofers A Must for Home Theatre

Yamaha subwoofers use sophisticated technologies such as QD-Bass (Quatre Dispersion Bass, down-firing drivers that radiate the sound in four directions) and Advanced

YST (Yamaha Active Servo Technology) to ensure the highest levels of sound pressure and overall performance.

The YST-SW515 and YST-SW225 are designed to acoustically match the speakers in the 515 PMD Series (see p.29) and 225 PMD Series (see p.30), and are recommended to be sold together with them.

YST-SW1500	YST-SW515		YST-SW225	YST-SW215
Advanced YST and QD-Bass	Advanced YST II and		Advanced YST II and	Advanced YST and
Subwoofer	QD-Bass Subwoofer		QD-Bass Subwoofer	QD-Bass Subwoofer
• Cherry finish available				• Cherry finish available for
				YHT-540C (see p.34)
Subwoofers	YST-SW1500	YST-SW515	YST-SW225	YST-SW215
Advanced YST	Yes	Advanced YST II	Advanced YST II	Yes
QD-Bass Technology	Yes	Yes	Yes	Yes
High-Efficiency Power Amplifier	Yes	Yes
Drivers	30cm extra-long stroke driver	25cm cone	20cm cone	20cm cone
	with dual bias system
Magnetic Shielding	Yes	Yes	Yes	Yes
Linear Port for Minimising Extraneous Noise		Yes	Yes
High Cut Filter (Continuously Variable)	40–140 Hz	40–140 Hz	40–140 Hz	40–140 Hz
Phase Control (Normal or Reverse)	Yes	Yes	Yes	Yes
Auto Standby	Yes	Yes	Yes	Yes
BASS (Bass Action Selector System)	Yes	Yes	Yes	Yes
Low Frequency Effect Input Terminal	Yes
High Pass Filter Output Terminal	Yes
Remote Control Unit	Yes
Output Power	1,000 W	250 W	250 W	120 W
Frequency Response (-10 dB)	16–160 Hz	20–160 Hz	28–200 Hz	28–200 Hz
Dimensions (W x H x D)	420 x 511 x 448 mm	350 x 430 x 382 mm	290 x 350 x 349 mm	290 x 360 x 322 mm
Weight	29 kg	19 kg	11.5 kg	11.5 kg

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