Product Description
, Yamaha NS-AW390WH 2-Way Indoor/Outdoor Speakers ,Grace Digital GDI-AQBLT300 Indoor/Outdoor Water Resistant ,BIC America DV-62CLRS 6-Inch 2-Way Center Channel Speaker , Polk Audio CS20 Center Channel Speaker , JBL SB 300 Soundbar Product Description Yamaha's YST-SW315 offers 250 high-efficiency watts--enough power to deliver shattering, movie-theater-like bass effects. Full enjoyment of Dolby Digital and DTS surround sources requires deep, clear bass. This is especially true with 5.1- and 6.1-channel sound, because the ".1" channel is dedicated to the bass frequencies. That means you not only need a subwoofer, but a high-power subwoofer capable of handling extremely low frequencies. The YST-SW315's down-firing 10-inch driver translates power into clean bass sound, and the YST-SW315 boasts a frequency response of 20 to 160 Hz (-10 dB at the extremes of the range).
The YST-SW315 delivers high power at deep bass frequencies, with excellent stability and low power consumption. This is made possible by the sub's highly efficient PWM (pulse-wave modulation) digital-drive power amplifier. The amplifier achieves superior conversion efficiency by minimizing power loss from the power transistors. It delivers stable audio power while minimizing AC power consumption and heat production. As it requires no output filter coil, it's extremely quiet with low distortion.
Yamaha's patented Advanced Active Servo Technology (Advanced YST) generates incredible bass from small speaker enclosures. This system uses negative-impedance feedback in the amp and a Helmholtz resonator in the speaker to provide strong and accurate bass.
QD-Bass (Quatre Dispersion Bass) technology uses a down-firing driver with square, pyramid-shaped reflective plates to radiate sound efficiently in four horizontal directions. The reflective plates (not used in other brands' down-firing subwoofers) negate any effects caused by the floor surface and reduce resonance between sound waves reflected from the floor and the unit. Most other systems use circular cones, but the YST-SW315 avoids firing sound into the legs of the cabinet by radiating in four directions. Changing the height of the pyramid varies the acoustic load, permitting relatively simple high-cut adjustment and improving bandpass properties. QD-Bass also grants greater freedom of placement, since the sound radiates with equal effectiveness in all directions.
The user-adjustable, continuously variable high-cut filter sets the highest frequency the subwoofer will deliver. It can be set anywhere from 40 to 140 Hz. For instance, if the filter is set at 75 Hz, only frequencies 75 Hz or below will be delivered by the subwoofer. This allows the sub's output to be matched to the lowest reproducible frequency of other speakers in the system and the room's acoustics for a seamless presentation.
The rotary volume control permits the perfect matching of the sub's output to the overall volume of the system. The YST-SW315 has a signal-sensing circuit. When the subwoofer detects an audio signal, it turns its power on. When it senses no signal for several minutes, it shuts itself off.
Yamaha's BASS (Bass Action Selector Switch) tailors the sub's output for video or music at the touch of a switch. Two sets of inputs let the sub accept either line- or speaker-level inputs, while a handy phase normal/reverse switch makes it easy to phase the subwoofer with the other speakers in your system.
Three-way speaker terminals accept banana plug and a variety of other connectors, as well as speaker wire, and the YST-SW315's thick, rigid MDF cabinet reduces vibrations and resonance. The speaker's handsome black-ash finish blends in with room decor and complements many furnishing styles, and it's magnetically shielded so you can place it near a TV or computer monitor without degrading the picture.
What's in the Box Subwoofer, user's manual, and warranty information.
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This review is from: Yamaha YST-SW315 10-Inch Digital Pro Series Subwoofer (Black) (Electronics)
I've had this sub for about and month and am very pleased with it. I wanted something that was large enough to be felt on movies but small enough that my wife wouldn't give me grief. It also had to be very musical. This Yamaha fits the bill. Be aware that it is a 15 inch black box sitting on a 3 inch plastic stand (the stand holds a cone underneath the speaker) and is not small enough to hide. I thought my wife would freak when I first set it up but when I asked her if it blended in with our other black components she said it was "Ok". I was very releaved as one of our biggest arguments ever was over speaker placement.
Sound: I have the Klipsch Quintet SL's main speakers(very nice) and a Kenwood receiver with 100 watts per channel. The Yamaha blends in very well with the main speakers. I have a very wide range of taste in music from classical to rock and I can't find any faults with this sub. I have the volume set at 25% and the cut off set at 40% and this seems to be ideal settings for music. I purchased the Tierney Sutton Dancing in the Dark (Multichannel Hybrid SACD) and couldn't be more pleased with the sound. The Yamaha augmented my Klipsch speakers perfectly and the sub just disappeared in the background. This is what a musical sub should sound like.
Movies: I haven't watched a lot of movies with the sub attached(because I am enjoying the music so much) but one that did make an impression is the movie "Twister". If you crank up the volume on the sub past 60% things start to move. When the twisters were in full force I could feel the sub moving my pants legs from 12 feet away.
Notes: You must supply input to both the right and left side connectors on the sub. My receiver only has one "sub out" connection so I had to use a "T" on the cable to supply both sides. If you just supply one side there is a large drop in sound volume.
Summary: I must have looked at 50 subs and was close to buying a Definitive Tech or a Klipsch sub. I'm glad I kept looking as this Yamaha is the best I have heard for under $500. If you just want an "In your face thumper" then this probably isn't the sub for you. If you are into quality sound over volume then you can stop looking. This is it.
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