Kevlar Speakers

Audio Amplifier Ic's, Kevlar Audio. This formidable speaker has amazing acoustic capabilities of high end speaker with the entire movie intensity of full theater sound quality. The woofer cone of .‎Speakers · ‎Amplifier · ‎Network Audio · ‎Contact UsPeople also askYou will see more English now.Are Kevlar speakers any good?What is Kevlar speaker?Which materials make the best sound in speakers?How do you clean Kevlar speakers?Feedback Audio Matrix Amplifier, kevlar speakers. Items 1 - 18 of 39 — Shop for kevlar speakers at Best Buy. Find low everyday prices and buy online for delivery or in-store pick-up.Free delivery over $35 · ‎Free 15-day returns Axxera Amplifier, ACE850 Trimless 8" 175W In-Ceiling Speaker. Featuring Kevlar woofers, the AcE850 trimless 8" 175W in-ceiling speaker from OSD Audio provide deep bass and exceptional frequency response.Speaker Type: 8" Kevlar® Trimless Ceiling Sp.Diameter & Depth: 10.79" x 4.41" B&w Amplifier, C695s Ceiling Speaker with 6-1/2″ Kevlar Woofer. C695s is a ceiling speaker with 6 1/2 Kevlar Woofer & 1" pivoting aluminum tweeter & tone switches. Provides best quality audio experience for home. Balanced Stereo Amplifier, Kevlar Acoustics Speakers. Tune into your music with powerful kevlar acoustics speakers on Alibaba.com that you can connect with all device types. These kevlon acousticics speakers . Rating: 5 · ‎30-day returns Banglijian Hearing Amplifier Instructions, Proficient Audio C895S Signature Ceiling Speakers with 8 .. One pair of ceiling speakers with 8" Kevlar woofers, cast magnesium woofer baskets, 1" pivoting aluminum dome tweeters, ±3dB bass & treble contour switches .Speaker Installation: IndoorManufacturer: Proficient Audio SystemsForm Factor: In-ceilingDiameter (mm): 282.575 Banner Fiber Optic Amplifier, Ceiling LCR Speaker with 6.5" Kevlar Woofer - C675S. Silmar Electronics - Guaranteed low prices on Ceiling LCR Speaker with 6.5" Kevlar Woofer. - Silmar Electronics - Save on the In-Ceiling. Basx Ta1 Stereo Preamp/dac/tuner With Integrated Amplifier, Kanto Passive 5.25″ Speakers with 1″ Silk .. Passive Speakers with 1" Silk Dome Tweeter and 5.25" Kevlar Woofer, White, Pair.$239.99 · ‎In stock Bat Amplifier, High Definition Ceiling Mount Full Range Speaker 5.25 .. KEY FEATURES 5.25” 2-Way Hi-Fi in Ceiling Speaker Kevlar Cone 0.76” Tweeter 70 Hz - 20 Khz 40W Power Low Profile Compact Design Steel Grille Durable .$75.99 · ‎Out of stock Bavsound Revenant Pro Amplifier Review, ArchiTech Kevlar 6.5" In-Wall Speakers, 2-Way (Pair). Find great deals on OEM Systems ArchiTech Kevlar 6.5 In. In-Wall Speakers, 2-Way (Pair) (OESE790KE) at DHA, the discount home automation specialist.$80.49 · ‎30-day returns Behringer Km750 750w 2-channel Power Amplifier, DS18 - ELITE 4x6" 2-Way Coaxial Speakers with .. DS18 - ELITE 4x6" 2-Way Coaxial Speakers with Kevlar Cone 180 Watts 4-Ohm (Pair). Out of stock.$79.95 · ‎Out of stock Best 1000 Watt Amplifier, ArchiTech Kevlar Series. Home»; In Wall Speakers»; ArchiTech Kevlar Series. ArchiTech Kevlar Series. 5.25" 2-Way In Wall Speaker (pair) Kevlar Cone. Code: SE-694KE. Price: $84.99.$84.99 Best 1000 Watt Car Amplifier, Linear: WG150W In-Wall Speaker Pair. These are the ideal premium in-wall speakers to mount in your wall throughout your home! Each speaker has an 8 inch Kevlar cone woofer with butyl rubber .30-day returns Best 5ch Car Amplifier, Carbon Fiber & Kevlar. Many speaker manufacturers claim to use exotic and highly specialize materials in their systems with all kinds of fancy sounding names, colors and finishes. Best Amplifier For Mids And Highs, Kanto Yup6 Passive 5.25" Desktop Speakers With .. Read reviews and buy Kanto YUP6 Passive 5.25" Desktop Speakers with 5.25-Inch Kevlar® Woofers and 1-Inch Silk Dome Tweeters, Pair at Target.Free delivery over $35 · ‎Free 90-day returns Best Budget Marine Amplifier, Kevlar Audio Speaker. Tune into your music with powerful kevlar audio speaker on Alibaba.com that you can connect with all device types. These kevlar audio speaker are waterproof .$20.00 · ‎30-day returns Adidas Jeremy Scott Asap Rocky, Acoustic Audio HD-650Pr 6.5-Inch Rectangle 2 Way Kevlar .. Find the lowest prices on the internet for the Acoustic Audio HD-650Pr 6.5-Inch Rectangle 2 Way Kevlar Speakers (White) with our special price comparison .$56.02 Gun Polo Shirt, Saga Elite™ 8" Angled In-Ceiling Speaker w - YouTube. Saga Elite™ 8" Angled In-Ceiling Speaker w/ Black Kevlar™ Woven Cone (Each) We don't call this series "Elite" for nothing.YouTube · Skywalker AV Supply · Sep 8, 20150:47 Best Multichannel Amplifier, Kevlar Speakers Pictures, Images and Stock Photos. Search from 59 Kevlar Speakers stock photos, pictures and royalty-free images from iStock. Find high-quality stock photos that you won't find anywhere else. Best Studio Amplifier, Hi-Vi L6-4R 6" Woven Kevlar Cone - 4 ohm. Hi-Vi Research L6-4R Woven Kevlar Cone Woofer with Phase Plug Rigid woven kevlar cone Phase plug Cast frame Shielded . Photo of front of L6-4R speaker.$50.80 Blutube Amplifier, 6.50 inch Kevlar 2-Way In-Wall Speakers (60W Nominal, .. 6.50 inch Kevlar 2-Way In-Wall Speakers (60W Nominal, 120W Maximum, 8 Ohm Impedance) - 2pcs/set.$44.06 Bmw F30 Amplifier Upgrade, FACTOR 6.5" KEVLAR IN-CEILING TRIMLESS .. Factor Electronics K Series architectural speakers. Provide audiophile sound quality and superior reliability. All K Series speakers feature woven Kevlar .Acoustic Audio HD-8Pr 8-Inch Round 2 Way Kevlar Speakers (White)$43.76Amazon.com5.0(1)Acoustic Audio HD-8Pr 8-Inch Round 2 Way Kevlar Speakers (White)$43.76Amazon.com5.0(1)Bass, clarity and power are the key components of serious sound. These 8 inch 2-way speakers were crafted specifically to respond to big bass, deliver extreme clarity and handle major power. Authentic Kevlar components used to construct the woofers respondC875s Proficient Audio Signature C875s 8" 175W Kevlar LCR Ceiling Speaker - Single Speaker$406.50DWG, 4+ storesC875s Proficient Audio Signature C875s 8" 175W Kevlar LCR Ceiling Speaker - Single Speaker$406.50DWG, 4+ stores175 W · Built-inSALEMonoprice Caliber 6816$61.59$110Monoprice.com, 10+ stores4.8(219)SALEMonoprice Caliber 6816$61.59$110Monoprice.com, 10+ stores4.8(219)Reasonably priced three-way setup · The lower end of the frequency response range is somewhat limitedPinnacle SpeakersEndeavor 5.25 in. In/Outdoor Speaker, 2-Way, Kevlar Woofer$444.95InwallstoreEndeavor 5.25 in. In/Outdoor Speaker, 2-Way, Kevlar Woofer$444.95InwallstoreThe IO-505-W Indoor / Outdoor speakers are designed to stand up to the elements with rust proof grilles that look good and sound great. 5-1/4" Dupont Kevlar woofer with butyl rubber surround 5-1/4" 2-way acoustic suspension loudspeaker FEATURES: Sealed, poLOW PRICEVanco BXS525BK Hi-Performance Kevlar 5-1/4-Inch Indoor/Outdoor Box Speakers (Black)$295.50Usually $320Amazon.comLOW PRICEVanco BXS525BK Hi-Performance Kevlar 5-1/4-Inch Indoor/Outdoor Box Speakers (Black)$295.50Usually $320Amazon.comThe Hi-Performance Kevlar Box Speakers are 5-1/4", two-way acoustic suspension indoor/outdoor loudspeakers. They are sealed and port-less in design to prevents bugs and moisture from entering the enclosure. The epoxy coated stainless steel provides long liLOW PRICECmple 5.25" Surround Sound 2-Way In-Wall/In-Ceiling Kevlar Speakers$59.99Usually $74Amazon.com4.0(1)LOW PRICECmple 5.25" Surround Sound 2-Way In-Wall/In-Ceiling Kevlar Speakers$59.99Usually $74Amazon.com4.0(1)Our new line of products is a superb in-wall and in-ceiling speakers. They are perfect for use in mid- or large-sized rooms, both for home theater and for high quality complete house audio. The 5.25" Aramid cone woofer produces profound mid and low frequenLOW PRICEAcoustic Audio HD-525Pr 5.25-inch Rectangle 2 Way Kevlar Speakers (White)$43.76Usually $66Amazon.comLOW PRICEAcoustic Audio HD-525Pr 5.25-inch Rectangle 2 Way Kevlar Speakers (White)$43.76Usually $66Amazon.comThe best way to complete your home theater surround sound system is to invest in in-wall or ceiling speakers. These 2-way speakers were engineered with bass, clarity and power in mind. The 5.25" woofers are composed of authentic Kevlar cone material, whichProficientSIGNATURE 6' KEVLAR LCR CEILING SPEAKER EACH$220.00smartecpro.comProficientSIGNATURE 6' KEVLAR LCR CEILING SPEAKER EACH$220.00smartecpro.com125 W · Built-in Bone Conduction Sound Amplifier, ELITE 6x9" 2-Way Coaxial Speakers with Kevlar Cone 360 .. The ZXI 694 is 6x9 inch, 4 ohm coaxial speaker designed for mid tier audio . ELITE 6x9" 2-Way Coaxial Speakers with Kevlar Cone 360 Watts 4-Ohm (par). Broadband Power Amplifier, 5 Best Kevlar Speakers 2023 - Best Reviews Guide. Best Reviews Guide analyzes and compares all Kevlar Speakers of 2023. You can easily compare and choose from the 5 best Kevlar Speakers for you. Bte Digital Hearing Amplifier, Pyramid 10" 300/600 Watt Kevlar Woofer Speaker. LW1060K - Pyramid 10" 300/600 Watts High Power Kevlar Woofer Speaker.$37.10 · ‎Free delivery · ‎30-day returns Burmester Amplifier, Guitar speaker cab with a Kevlar cone speaker. I've build a simple cab for a cheap Skytronic Kevlar cone speaker . In what follows I will try to convince you that regular speakers (namely woofers) can .ACE850 8" Kevlar Trimless Thin Bezel Ceiling Speaker Pair$137.32Amazon.com - Seller, 4+ stores4.7(12)ACE850 8" Kevlar Trimless Thin Bezel Ceiling Speaker Pair$137.32Amazon.com - Seller, 4+ stores4.7(12)ACE (Architectural Ceiling Element) series ceiling speakers combine elegant, modern style with outstanding audio performance. Features include an 8" Kevlar woofer with rubber butyl surround for long life, 1" pivoting aluminum dome tweeter and up to 175W poLOW PRICEVanco BXS525WH Hi-Performance Kevlar 5-1/4-Inch Indoor/Outdoor Box Speakers (White)$300.90Usually $324Amazon.comLOW PRICEVanco BXS525WH Hi-Performance Kevlar 5-1/4-Inch Indoor/Outdoor Box Speakers (White)$300.90Usually $324Amazon.comWhite · 2 Channel · OutdoorCmple 1244-N 5.25" Surround Sound 2-Way In-Wall-In-Ceiling Kevlar Speakers - Pair - Round$56.33Amazon.com, 5+ stores5.0(1)Cmple 1244-N 5.25" Surround Sound 2-Way In-Wall-In-Ceiling Kevlar Speakers - Pair - Round$56.33Amazon.com, 5+ stores5.0(1)Our new line of products is a superb in-wall and in-ceiling speakers. They are perfect for use in mid- or large-sized rooms, both for home theater and for high quality complete house audio. The 5.25" Aramid Fiber cone woofer produces profound mid and low fSPECIAL OFFERMonoprice Ceiling Speakers 5.25 Inch 2-Way$35.97Usually $42Monoprice.com, 10+ stores4.9(69)SPECIAL OFFERMonoprice Ceiling Speakers 5.25 Inch 2-Way$35.97Usually $42Monoprice.com, 10+ stores4.9(69)…for in wall surround. I have two sets for the back speakers in a 7.1 surround. Easy to install and sound great. Watching movies has never been more life like!!!A reviewer on monoprice.comRockville WA658 6.5" In-Wall Home Speakers w Kevlar Woofer+Silk Dome Tweeter$79.95Amazon.com, 3+ storesRockville WA658 6.5" In-Wall Home Speakers w Kevlar Woofer+Silk Dome Tweeter$79.95Amazon.com, 3+ stores480 W · White · Built-inArchitech SC-620F 6.5 2-Way Kevlar Series Frameless in-CeilingWall Loudspeakers$195.51Amazon.comArchitech SC-620F 6.5 2-Way Kevlar Series Frameless in-CeilingWall Loudspeakers$195.51Amazon.comTo save floor space, the Architect 6.5" 2-Way Round Kevlar Series Frameless In-Ceiling/Wall Loudspeaker can provide surround sound without fighting furniture for room. These 2-way speakers use a nominal 40W and maximum 80W, and use a Kevlar woofer with butPAS11851 Proficient Audio Protege C851 8" 175W Kevlar Ceiling Speaker - Pair of Speakers$570.00DWGPAS11851 Proficient Audio Protege C851 8" 175W Kevlar Ceiling Speaker - Pair of Speakers$570.00DWG175 W · Built-in · SetOem Systems ArchiTech Prestige Series PS-602 Speaker 50 Watt$147.99Qualitymobilevideo.com5.0(1)Oem Systems ArchiTech Prestige Series PS-602 Speaker 50 Watt$147.99Qualitymobilevideo.com5.0(1)These fit the bill.nice looking, easy to install, good sound.A reviewer on ebay.com Cab-45 Amplifier, 6.5 inch Kevlar Chassis Bass Speaker. Excellent Bass speaker (Woofer) with Aramid Fibre (Kevlar) Cone and Rubber Surround. Heat Resistant 4 Layer Coil and Vented Magnet. Smooth bass response and .£19.50 · ‎28-day returns Class D Gan Amplifier, Proficient Audio Solutions 6.5” Kevlar Woofer In-Ceiling .. The Proficient Audio Solutions C695 In-Ceiling Speaker features a super-stiff magnesium frame and a cone made from Kevlar fiber—the same material used for .30-day returns Conference Room Amplifier, What is the difference between the 5-1/4 Inches Kevlar 2- .. What is the difference between the 5-1/4 Inches Kevlar 2-Way In-Wall Speakers (Pair) - 50W Nominal, 100W Max (PID 4099) and the 5-1/4 Inches 3-Way High . Connectorized Rf Amplifiers, Proficient Audio C675S Signature Ceiling LCR .. One LCR ceiling speaker with woofer and tweeter bridge fixed at a 15˚ angle. 61/2" Kevlar® woofer and 1" pivoting aluminum dome tweeter and 125 watt power .CA$209.99 Crescend Amplifier, 5.1 In-Wall In-Celing Speaker System Aramid Fiber .. 5.1 speaker system with power peak up to 1380 Watts. Includes in-wall and . 5.1 In-Wall In-Celing Speaker System Kevlar Speakers Power Peak 1380 Watts.$159.98 · ‎60-day returns Crown 135ma Amplifier, Kevlar In-Ceiling 6. 6.5" Frameless In-Ceiling Speaker. . The strength of Kevlar helps the cone retain its shape at very high energy levels and its low mass assures quick, .MYR 1,399.00 · ‎In stock Herringbone Polo Shirts, Diamond Audio HXM525 5.25" Kevlar Speaker Set for Harley. IP65 Marine Grade Compliant · 1-in Oversized Titanium Dome Tweeters · Thermal molded, waterproof, Kevlar® cone · Built-in RGB LED Lighting · High temperature, UV- .$399.99 · ‎Free delivery over $199 · ‎30-day returns Cryogenic Amplifier, SoftSpeaker™ 3K Amplified Pillow Speaker with Kevlar. Personal pillow speaker with Kevlar® and built-in amplifier allows you to listen to your favorite audio at night without disturbing others. Buy yours today.Speaker Type: Neodymium-Ferrous-Boron .Amplifier Dimensions: 3"W x 1"L x 3/4"DSpeaker Cover: Super Plush and WashablePlug Type: 3.5mm Stereo$39.99 · ‎Free delivery over $249 · ‎30-day returns Das Amplifier, ACE650 Trimless 6.5" 100W In-Ceiling Speaker. Using Kevlar woofers, the ACE650 trimless 6.5" 90W in-ceiling speakers from Outdoor Speaker Depot provide deep bass and exceptional top-end frequency .$116.28 · ‎30-day returns · ‎In stock Denon Car Amplifier, K2 Power line. The K2 Power Kevlar® cones used for the speaker drivers of the ES 165 K component kit deliver extremely dynamic sound and perfect definition. These cones . Denon D-m41 Home Theater Mini Amplifier And Bookshelf Speaker Pair, Exploring the Different Types of Speaker Diaphragm .. Kevlar diaphragms are highly durable and can handle high power levels, making them popular for high-performance speakers. Kevlar has a high .OEM Systems ArchiTech Kevlar 6.5 In. In-Wall Speakers, 2-Way (Pair) (SE-790KE)$108.93Amazon.comOEM Systems ArchiTech Kevlar 6.5 In. In-Wall Speakers, 2-Way (Pair) (SE-790KE)$108.93Amazon.comIrDA · 2 Channel · Built-inPinnacle Speakers K6 Kevlar In-Ceiling Speakers (Pair)$149.00Audiolab Stereo & Home TheaterPinnacle Speakers K6 Kevlar In-Ceiling Speakers (Pair)$149.00Audiolab Stereo & Home TheaterPinnacle's Kevlar Series of custom In-Wall and In-Ceiling speakers are designed for superior sound backed by "bulletproof" durability. Kevlar, a miraculous cutting edge polymer, is the material of choice for bulletproof vests and other highly specialized aOEM Systems Architech Kevlar 5.25 in. In-Wall Speakers 2-Way Pair$42.00homecontrols.comOEM Systems Architech Kevlar 5.25 in. In-Wall Speakers 2-Way Pair$42.00homecontrols.comThe Kevlar material used in the ArchiTech Kevlar series is an exceptional choice for high performance woofers. Its incredible strength enables low distortion music reproduction, while its lightness provides great detail and musicality. And it is amazingly Architech PS-601 6.5" Kevlar Ceiling Speakers$120.99Qualitymobilevideo.comArchitech PS-601 6.5" Kevlar Ceiling Speakers$120.99Qualitymobilevideo.comKevlar is an amazing fibrous material developed by two DuPont research scientists in 1965. The technology proved to be stronger, more durable and lighter than any other material available. Kevlar is 5 times stronger than steel of the same weight. These uniBic Venturi Vk-310c 10 inch 3-Way Kevlar Series Ceiling Speaker with Pivoting Tweeter and Midrange$150.00audiogeneral.comBic Venturi Vk-310c 10 inch 3-Way Kevlar Series Ceiling Speaker with Pivoting Tweeter and Midrange$150.00audiogeneral.comThe BIC Venturi VK-310C 10 inch 3-Way Kevlar Series Ceiling Speaker with Pivoting Tweeter and Midrange offers incredible strength and dispersion advantages compared to a traditional woofer. Kevlar enables superior acoustical quality, improved mid-bass, extPair Rockville WA658 6.5" In-Wall Home Speakers w Kevlar Woofer+Silk Dome Tweeter$79.95Rockville AudioPair Rockville WA658 6.5" In-Wall Home Speakers w Kevlar Woofer+Silk Dome Tweeter$79.95Rockville Audio480 W · White · Built-in8 Kevlar R Trimless Dual Tweeter Ceiling Speaker$81.95shop.com8 Kevlar R Trimless Dual Tweeter Ceiling Speaker$81.95shop.comBuilt-inM-Audio BX4 4.5” Black Kevlar 120-Watt Multimedia Reference Monitors$158.05ReverbM-Audio BX4 4.5” Black Kevlar 120-Watt Multimedia Reference Monitors$158.05Reverb120 W · Black · AUX, RCA High Quality Polo Shirts Without Logo, 8-Inch In-Ceiling Speaker w/ Kevlar Woofer. The SpeakerCraft AIM 8 FIVE Series 2 speaker has a 15 degree pivoting 8” kevlar cone woofer, 15 degree pivoting & 359 degree rotational ARC tweeter array . Dual Band Amplifier 2m 70cm, 6.5” In-Wall Kevlar Speaker RK650IW-RL. NEW! Rimless Designer Grill! 6.5″ In-Ceiling Kevlar Speakers. Woofer: 6.5″ Woven Kevlar cone, rubber surround, 25oz Magnet, 1.25″ voice coil, . Dyson Amplifier, Monoprice® 120W 6.5" Kevlar 2 Way In-Ceiling Speaker .. Get Monoprice® 120W 6.5" Kevlar 2 Way In-Ceiling Speaker, White fast and with free shipping on qualifying orders at Staples.$86.99 · ‎14-day returns High Visibility Polo Shirt, Linear W695S In-Wall Speakers with 6½” Kevlar Woofers, 1. Linear W695S In-Wall Speakers with 6½” Kevlar Woofers, 1″ Pivoting Aluminum Tweeters and Tone Switches. Free lifetime tech support, fast shipping, .$670.00 · ‎30-day returns Earspoke Hearing Amplifier, DS18 ZXI-354 3.5" Full-Range Speakers with Kevlar Cone .. DS18 ELITE 3.5" Full-Range Speakers 120 Watt 4 Ohm Pair with Kevlar Cone ZXI-354The ZXI series is the go to DS18 line for great sounding audio that not only .$49.95 · ‎30-day returns · ‎In stock Easy Us Life Digital Hearing Amplifier, Kevlar for Speaker Cone | Page 2. Sep 22, 2007 — Do any forum members have speakers with Kevlar fibers in the woofers and do they really produce tighter bass? Ebs Amplifiers, x3 IW650 6.5", 200W Trimless In-Wall LCR Speaker .. Can be used as a center channel or left and right channel speaker; Dual Black Kevlar woofers serve up superb low and mid-range frequencies; 1" aluminum dome .$399.99 · ‎Free delivery over $50 · ‎60-day returns 03 Silverado Door Speakers, Fiberglass vs Kevlar cones. - AudioKarma. Oct 20, 2014 — I've never worked with kevlar, so curious how difficult it is to get the . Bookshelf Speakers with Paper Cones and Soft Dome Tweeters? 06 Silverado Door Speakers, Paper, Kevlar, or Poly Plas Cones.?. Oct 16, 2013 — I have been looking for some Bookshelf Speakers. I was checking out the JBL Website and was looking at the Studio L830 (3-way) and Studio .20 posts  ·  Cone material is really sort of a non-issue. The different materials do sound different, . 1000 Watt Passive Speakers, How is kevlar speaker cone different from paper cones?. Kevlar speaker cones are made from a composite material that contains the synthetic fiber called Kevlar. This material i. Continue reading.3 answers  ·  7 votes: A typical speaker cone is driven by a coil glued to the center of the cone, and supported . 1000 Watt Rms Speakers, C646 Proficient Audio 6.5 150W Kevlar Ceiling Speakers - DWG. [DISCONTINUED] C646 Proficient Audio 6.5" 150W Kevlar Ceiling Speakers - Pair of Speakers · 6½" Kevlar® Woofers · Frequency Response: 32Hz - 22kHz · Cast Magnesium .$450.00 150w Rms 6.5 Speakers, Pinnacle Speakers K6 6.5-Inch Round Coaxial 2-Way In .. Pinnacle Speakers K 6 6.5-Inch Round Coaxial 2-Way In-Ceiling Speakers with Kevlar Cone Driver 3/4-Inch Pivot Mount Titanium Dome Tweeter (White).$100.00 · ‎Out of stock 16cm Speakers, Buy Kevlar Speakers devices online. Choose kevlar speakers to enliven your multimedia at Lazada.com.ph. | ✓Free Shipping ✓Lowest Price ✓Hot Deals. Rating: 4.9 · ‎123 votes