Infinity Kappa Perfect 12 Excursion

Maxing out an Infinity Kappa Perfect Dual Voice Coil. The amp is a NEW Kappa One 500@4ohm and 800@2ohm. The sub is about 2 years old and is falling apart, I am running it on one voice coil because the other one broke apart. I am planning on geting two Kappa Perfect 10 in a custom enclosure and a four channle amp for my door speakers which explains why the power cable is spliced.

Great Price Re for Brand NEW Re Audio Srx12d4 12" 300 Watt Rms Rated (600w Peak) Dual Voice Coil 4 Ohm Car Subwoofer (Free Air or Small Enclosure Mounting Options) **Free Shipping**

Brand NEW Re Audio Srx12d4 12" 300 Watt Rms Rated (600w Peak) Dual Voice Coil 4 Ohm Car Subwoofer (Free Air or Small Enclosure Mounting Options) **Free Shipping** Review

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Technical Details

• Engineered with new magnet covers that aid in cooling the voice coils while protecting the magnet
• 4-layer Copper Voice Coil? FEA Optimized Motor Structure
• Mounting Hole Diameter - 11"
• Bolt Hole Circle - 11.625"
• Displacement - 0.14 cu. ft.

Brand NEW Re Audio Srx12d4 12" 300 Watt Rms Rated (600w Peak) Dual Voice Coil 4 Ohm Car Subwoofer (Free Air or Small Enclosure Mounting Options) **Free Shipping** Overview

BRAND NEW RE AUDIO SRX12D4 12" 300 WATT RMS RATED (600w PEAK) DUAL VOICE COIL 4 OHM CAR SUBWOOFER (FREE AIR OR SMALL ENCLOSURE MOUNTING OPTIONS)**FREE SHIPPING**Features:Engineered with new magnet covers that aid in cooling the voice coils while protecting the magnetFlat wound voice coilsKraft Pulp ConeRubatek Foam SurroundPressed Steel Basket4-layer Copper Voice Coil? FEA Optimized Motor StructureDouble Stack MagnetsLinear SpidersFoam GasketMounting Depth - 5.75"Mounting Hole Diameter - 11"Overall Diameter - 12.375"Bolt Hole Circle - 11.625"Motor Width - 6.25"Motor Depth - 2.5"Basket Depth - 3.25"Displacement - 0.14 cu. ft.Weight - 16.5 lbsQES: 0.41QMS: 4.99QTS: .38Free air Resonance - FS - 23.6 HZ VAS: 85 LitersXMAX: 18 MMSPL @ 1W / 1M: 86.2 dB SPLEffective piston area: Sd: 480 cm ^2Dc Resistance: RE: 1.8 ohmNominal Impedance: Dual 4 Ohm300w RMS Rated600 watts maxForce Factor, BI: 14.35

Home Theater Soundproofing Using Acoustic Panels

Having a home theater system certainly increases the pleasure of watching a movie. Even when most people like to hear movies set at realistic sound levels, the resultant noise can definitely be annoying for the neighbors. This is why it is essential for home theater owners to use good soundproofing in their houses to avoid complaints from the neighborhood.

Soundproofing bass waves is difficult and needs professional expertise to completely soundproof a room. The best way to soundproof a room is to construct a floating room wherein the ceiling, walls and floors are structurally isolated from the rest of the building, making it totally soundproof. But that is an extremely expensive procedure.

A comparatively cheap soundproofing option would be to use acoustic panels to soundproof a room. Acoustic engineers use a combination of absorption and diffusion techniques to make a room soundproof. These are used to absorb sound energy as well as distribute the necessary sound waves evenly across the room so that unwanted noise is eliminated. Acoustic panels are porous in nature and when sound waves pass through them, the waves get trapped and the sound is deadened. Thus, for soundproofing walls, it is very effective.

Acoustic panels help in reducing sound vibrations by controlling stray waves known as 'flutter echoes', 'room modes' and other vibrations that may result from a room's proportions and construction. The soundproofing material usually used for acoustic panels are fiberglass panes in simple frames, which absorb the sound. These panels are also known as 'bass traps' as they trap bass frequencies and prevent the same from spreading. For soundproofing ceiling and soundproofing walls, acoustic diffusers, fabrics and foam may also be used.

Floor soundproofing is usually not needed in case acoustic panels are used. But as a precautionary measure, using carpets are generally recommended by soundproofing experts. Acoustic panels can be fitted anywhere in a room depending on what looks visually attractive. Nowadays, attractively patterned acoustic panels are also available, which serve the dual purpose of home soundproofing as well as that of wallpaper. So, if someone is thinking about enjoying movie soundtracks and music on hishome theater, using the right soundproofing material becomes the ideal way to do it without causing disturbance to the neighbors.

The Guts of my Seeburg DS160 Jukebox, part 1

Now you get to see what makes my 1962 Seeburg DS160HR jukebox work - and sound - the way it does. Fully refurbished and customized. It has an auto-speed unit so it plays both 45rpm and 33-1/3rpm 7" records, holds 80 records for 160 selections (more with extended-play discs), original rebuilt tube amplifier (transistorized pre-amp circuit), rebuilt Tormat tube-type selection receiver; rebuilt solid state (all transistorized) auto-speed unit; original Pickering dual-styli magnetic stereo cartridge. Original speakers: two 12" woofers thru a "Seeburg Stereo Network" (low-pass filter); two 4x6" ear speakers each thru a high-pass filter. Two extra 4" tweeters and one subwoofer have been added (concealed inside the cabinet). If you are playing this back thru a sub and tweeters, you will get astounding bass and treble response. New reproduction upper & lower glass, custom 3-D mirrors around center crown and also flanking speaker grille. New stainless steel mirror-finish kickplate; repainted cabinet sides with custom pinstriping and decal work. The jukebox is wired with a 'free-play' credit unit which keeps the credit lamp lit, but the latch bar solenoid is only energized once the first button is pushed and releases when the second one is pushed. Ropelighting installed underneath the cabinet creates a blue glow beneath the juke. This piece of history looks as good as, or better than the day she rolled off the assembly line and has provided me with untold hours of enjoyment. People ...

Gaming Laptop Review: ASUS G53JW-3DE and Asus G73SW-A1 Laptop Reviews

Gaming laptop is becoming quite popular not just in US and UK but also all over the world. Asus has always been a pioneer name when it comes to gaming laptops. In the recent past, they have released quite a few gaming friendly notebooks. These are not regular notebooks from Asus but high performance systems that can give you the best gaming pleasure.

Here are two gaming systems from Asus that comes fully loaded with features that will give you unsurpassed gaming experience:

ASUS G53JW-3DE
The looks and the design of this beautiful laptop is simply amazing. It weighs 7.9 pounds. It has got a 15.6 inch HD display screen. Nvidia's active shutter technology is what makes it possible 3D content on this machine. You need to make use of 3D glasses (comes with the laptop) to enjoy the game in 3D environment. The notebook runs on Intel's quad core processor that gives a performance of 1.73 GHz.

The size of the hard disk is 1.5 TB which is very spacious for loading your multimedia content. The 8 GB DDR RAM adds on to give you the best and efficient performance. The GTX 460 graphics card from Nvidia helps in rendering strong graphics smoothly as it comes with 1.5GB video memory. The other features of this amazing of technology include, HDMI port, 8-in-1 card reader, 2 megapixel web camera.

Asus G73SW-A1
This is another gaming laptop from Asus that runs on the new quad core processor from Intel. The system runs on Intel Core i7 series processor. As far as gaming is concerned, the Nvidia GeForce GX 460 graphics that comes with a video memory of 1.5GB will give blistering fast video performance.

The 8GB RAM will ensure you get the smoothest performance. The dual layer 500 GB hard disk drive is gigantic enough to store hundreds of high graphics games. With Blu-Ray combo drive, you will be able to enjoy all your favorite HD movies on 17 inch LED display screen. This gaming machine is powered by 8-cell battery. The sound output of the system is excellent thanks to the inbuilt stereo speakers which come with a subwoofer. Another version of the same notebook called ASUS G73SW-3D supports 3D gaming experience as it comes with 3D capable display and 3D glasses.

Cheap RE Audio MX Series MX15-D2 15" Dual 2ohm Subwoofer for $964.95 Re

RE Audio MX Series MX15-D2 15" Dual 2ohm Subwoofer Review

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RE Audio MX Series MX15-D2 15" Dual 2ohm Subwoofer Overview

RE AUDIO was founded by audio enthusiasts, for audio enthusiasts. They understand the uses (and often abuses) in autosound and engineer products for use in the real world. RE Audio products have the finesse and sound quality to please the most discriminating audiophile, and the durability to stand up to the extreme abuses of SPL competition. RE Audio is taking the car audio competition scene by storm.Join the ranks of the competitors with RE Audio.RE Audio: "Built for Brutality, Engineered for Excess"The RE Audio MX Series of subs feature Neo magnets and a 4" coil forExtreme Excursion! The MX SERIES pushes performance to a new level.MX15-D2 (MX.15.D2/MX15D2) Features :Dual Composite 2-piece ConeRubber SurroundIntegrated GasketCast Aluminum BasketTork-Tite Terminal4 4-layer Aluminum Voice CoilFEA Optimized Motor StructurePowerful Neo MagnetDual Progressive SpidersIntegrated Tinsel LeadMX15-D2 (MX.15.D2/MX15D2) Dimensions :15" Dual 2ohm SubwooferMounting Depth - 11Mounting Hole Diameter - 14.5Overall Diameter - 16Bolt Hole Circle - 15.25Motor Width - 8.5Motor Depth - 2.5Basket Depth - 8.5Displacement - 0.22 cu. ft.Weight - 36 lbs.MX15-D2 (MX.15.D2/MX15D2) T/S Parameters :Electrical Q Value -Qes: 0.561Mechanical Q Value -Qms: 3.098Total Speaker Q Value -Qts: 0.475Free Air Resonance -Fs: 20.775 HzEquivalent Compliance -Vas: 166.25 litersOne-Way, Linear Excursion -Xmax: 22 mmEfficiency -SPL 1W/1m: 86.113 dB SPLEffective Piston Area -Sd: 810 cm^2DC Resistance -Re: 1.4 ohmNominal Impedance -Znom: Dual 2 ohmThermal Power Handling -Pe: 1500 WForce Factor -Bl: 14.56MX15-D2 (MX.15.D2/MX15D2) Recommended Enclosures :Sealed Compact: 1.5cfSealed Optimal: 2.0cfPorted Compact: 3.0cf tuned @ 35HzPorted Optimal: 4.0cf tuned @ 34HzNote: ShipSound.com is an Authorized Internet Retailer for RE Audio. You'll get the full 1-Year Manufacturer's Warranty.

Elemental 13av.2 subwoofer excursion using Pilyo DIYs

Driver 1.5kw rms Elemental Design latest subwoofer 13av.2 dual4 Dual Monoblock Amp. Pilyo DIY home made amp design by me. Purchase your DIY MONO BLOCK Amp here: --------------------------------- Read 200+ reviews here. tipidpc.com More great reviews here but needs to register at pinoydvd.com Information of products and more reviews. go to page1 www.pinoydvd.com Subwoofer enclosure link here. www.sulit.com.ph Monoblock and stereo Amplifiers. www.sulit.com.ph Subwoofer DIY vs Branded shootout thread. www.pinoydvd.com ----------------------------------------- Winner of Pinoydvd HT sub shootout champion for DIY vs Branded sub. www.pinoydvd.com single DIY ported 8inchPioneer - 105.5db beating two 15inch Paradigm Servo-15v.2 - 105db tested @ 9ft away from SPL meter. ----------------------------------------- Amp output twin monoblock 800watts. Total of 1.6Kw Source Yamaha Home Receiver RXV-1500 Box type for Home Theater use - ported 2.2cu using RE cad software. Song Lil Wyte - Hoods Run Down In this vid there is a problem with my cellphone cam. the mic couldn't handle the bass. although in the middle part the sub is xmax to the maxed and its not yet adjusted. in second vid field alignment is now pre adjusted.

Great Price Kicker 08CVT654 for $52.99 Kicker CompVT 08CVT654 6.5-Inch 4-Ohm 165mm SVC Subwoofer

Kicker CompVT 08CVT654 6.5-Inch 4-Ohm 165mm SVC Subwoofer Review

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Technical Details

• 6.5-inch CompVT shallow-mount subwoofer with 4-ohm impedance
• Injection-molded cone with 360-degree back bracing and aluminized coating; ribbed Santoprene surround
• 150 Watts RMS (300 Watts peak) power handling
• 25-350 Hz frequency response
• One-year limited warranty

Kicker CompVT 08CVT654 6.5-Inch 4-Ohm 165mm SVC Subwoofer Overview

COMPVT 65-INCH SVC 165MM SUB 4-OHM

Best Planet Audio BB215D 15-Inch 3000 Watts 4-OHM Dual Voice Coils Max Power Handling DVC Subwoofer for $135.57 Planet Audio

Planet Audio BB215D 15-Inch 3000 Watts 4-OHM Dual Voice Coils Max Power Handling DVC Subwoofer Review

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Technical Details

• Power Handling (Peak) 3000W , Power Handling (Contin.) 1500W , Freq. Response 12Hz- 350Hz , Efficiency (1 Watt/1 Meter) 97Db , Impedance Dual 4 Ohm , Magnet Structure 240 Oz. , Voice Coil Former 3-Inch , Mounting Depth 8-13/16-Inch
• Diecast Aluminum Basket Non-Pressed Paper Cone 7-Layer High Density, Fat Rolled Foam Surround   Dual Flat Spiders With Woven Tinsel Leads
• Black Anodized Aluminum Voice Coil Former Insulated Lead Wires Exclusive Para-Term Connection System
• 15-Inch Dual Voice Coil Subwoofer

Planet Audio BB215D 15-Inch 3000 Watts 4-OHM Dual Voice Coils Max Power Handling DVC Subwoofer Overview

15-Inch DVC Subwoofer, 3000 Watts Max Power Handling, 4-OHM Dual Voice Coils

All Alpine System Flex 2

Another clip of the two 12'' Type R's beatin in a small ported box. System Specs - 1 Alpine CDA-9886 Head Unit, With 1 Corsair Voyager 32GB USB Thumbdrive 1 Alpine MRD-M1005 Mono Subwoofer Amplifier. Birth sheet specs are, 1087 Watts RMS X 1 Channel, Continuous Power @ 2 Ohms. 1 Alpine MRV-F545 Mids and highs Amplifier. Birth sheet specs are, 152 watts RMS X 4 Channel's, Continuous Power @ 4 Ohms. 2 - Alpine SWR-1222D Dual 2 Ohm Subwoofers. 500 Watts Each, RMS Continuous Power. 1 Set Of Alpine SPR-69LP 6x9 Coaxial 2-Way speaker in front doors. 1 Set Of Alpine SPR-17LP 6-1/2'' Coaxial 2-Way Speakers in rear doors. 1 Set of Alpine SPR-176a 1'' Tweeters in the "A" Pillars. Stinger HPM Series 12Ga Speaker Cable to all mids and highs. Stinger 8ga subwoofer cable, to and in the 1'' thick SEALED Subwoofer box. Stinger HPM Series 0/1ga Power wire to feed the hungry amps. Stinger 0/1 ga Fuse Block Holder With 250 Amp Fuse. 2 - 0/1Ga Stinger HPM Series Battery Terminals. Stinger HPM series RCA's used through out. Bass and Mid's & High's Amps. 1 - 55 Amp Hour Optima Yelow Top Battery, 1 - 5 Amp Hour BattCap Model 400, 1 - 35 Amp hour Stinger Sealed AGM Battery, 1 - 136 amp alternator.

Car Audio Systems & Car Stereo

The most common and familiar piece of audio equipment is the radio/tape player/CD player/DVD Player which is generically described as a Head unit, which also can be called a head deck. It is also the most likely component to be upgraded with an aftermarket item. A recent development in head unit technology has been the addition of CD players with MP3, Ogg, WMA, AAC, and USB, Bluetooth and Wi-Fi support.

Not many people are aware of the fact that a good car audio system performs at its optimal best only when it is matched with the internal and external specifications of the car it is housed in. There is no point in getting a high PMPO, 500 watts car audio system and then housing it in the small (relatively small that is) confine of a Volkswagen beetle. At the same time, there is no use at all in getting a tinny, entry level car audio system and putting it in the spacious interiors of a hummer.

Car Audio amplifiers are used to give extra power to speakers in the system that need more power than what the stereo or head unit can produce. The most common amplifiers are used for subwoofers. Preferences for amplifiers greatly very. Today there are countless brands and prices to choose from. The most common amps are 1 channel (mono-block) or 2, and 4 channels. Some top brands in car audio amplification are: Pioneer, Kicker, MTX, Sundown Audio, RD Audio, Incriminator Audio, Digital Designs(DD), Resonant Engineering(RE Audio)(no longer makes amps), JL Audio, and Rockford Fosgate. Although there are thousands more to choose from.

Amplifiers are classified by how they make the power. There is Class D, Class A, Class A/B, Class B, and many variations on the Class D such as Class X, Class TX, etc. The internal components of an amplifier are generally referred to as "Amp Guts" and by how stout the amp looks on the inside you can get a VERY general idea on the power output.

9500 Acer Aspire Notebook Does Both

Sometimes looking through the market place for notebook computers it can be hard to decide where to start. An overwhelming number of models, manufacturers and optional components and accessories can freeze your brain. I've found short reviews helpful to get some focus and define a starting point.

The Acer Aspire notebook series and particularly the 9500 have impressive features and options that offer a great deal of flexibility at a rational price. The Aspire 9500 Acer notebook will serve as both an excellent tool for business and as a high quality entertainment center. Top drawer ATI graphics, a large 17 inch screen and a fully functional TV-tuner combine with an Intel Centrino Express chipset and comprehensive multimedia software so that this Acer Aspire notebook offers you some of the finest multimedia entertainment available on any affordable notebook..

Using Intel Centrino or Intel Pentium M (760) mobile technology, the Aspire can provide better battery duration, wireless connectivity and excellent performance. The PCI Express architecture, working with DDR2 533MHz or 400MHz memory, provides rapid multi-tasking operations and allows significantly faster access to data residing on external devices. This model of the Acer Aspire notebook also features 100GB of hard drive storage (larger drives are also available) and up to 2GB memory. You get serious storage capacity and remarkable performance.

And if you like TV? You can turn your Acer Aspire into a fully functional TV via an integrated digital or analog TV tuner coupled to a DVB-T digital antenna. And you can get a full function remote control. Just make sure the boss doesn't catch you watching TV when you're supposed to be working.

The TFT LCD screen is a superb 17 inch WXGA CrystalBrite and delivers amazing picture quality and spectacular image clarity from the ATI Radeon X700 graphics. The audio quality is excellent, backed up by S/PDIF and MS Sound components which include a subwoofer as well as two integrated 2.1-channel stereo speakers and stereo microphones. Add in the Acer Arcade or Windows Media Center editions and you have the capability to not only watch movies and listen to great music but you can also do some serious image editing. To top it off, you can choose either a DVD/CD-RW optical drive, a dual-layer DVD writer or the integrated variable-speed DVD-Super Multi double-layer drive which does just about everything. A 5-in-1 card reader is also included

Wireless connectivity on the Acer Aspire notebook is via Intel PRO/Wireless 2200BG - a Wi-Fi certified network solution - which supports the Acer Signal-Up technology. Conventional Ethernet connectivity is normally 100Mbps but the Acer has Gigabit Ethernet with the capability of delivering data at 1000Mbps - 10 times faster. Other available options for wireless connectivity are Integrated Blue-tooth and the Fast Infrared technology.

The Acer Aspire notebook has the ability to meet your needs for both work and fun in a single high quality, high performance package.

Copyright 2006 Richard Keir

Great Price Rockford for Package: Rockford Fosgate P3sd412 12" Punch P3 Dual 4 Ohm Voice Coil Shallow Subwoofer with 800 Watt Peak / 400 Watt RMS + Atrend Single 12" Sealed Subwoofer Enclosure + Sub Box Wire Kit with 14 Gauge Speaker Wire + Screws + Spade Terminals

Package: Rockford Fosgate P3sd412 12" Punch P3 Dual 4 Ohm Voice Coil Shallow Subwoofer with 800 Watt Peak / 400 Watt RMS + Atrend Single 12" Sealed Subwoofer Enclosure + Sub Box Wire Kit with 14 Gauge Speaker Wire + Screws + Spade Terminals Review

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Technical Details

• Custom 10-AWG nickel plated push terminals
• High-temp voice coil with spun-laced Nomex® re-inforcement collar
• Linear spider with embedded 16 AWG tinsel leads
• Single 12" sealed subwoofer enclosure
• High quality spring loaded terminals

Package: Rockford Fosgate P3sd412 12" Punch P3 Dual 4 Ohm Voice Coil Shallow Subwoofer with 800 Watt Peak / 400 Watt RMS + Atrend Single 12" Sealed Subwoofer Enclosure + Sub Box Wire Kit with 14 Gauge Speaker Wire + Screws + Spade Terminals Overview

Package: Rockford Fosgate P3SD412 12" Punch P3 Dual 4 Ohm Voice Coil Shallow Subwoofer with 800 Watt Peak / 400 Watt RMS + Atrend Single 12" Sealed Subwoofer Enclosure + Sub Box Wire Kit With 14 Gauge Speaker Wire + Screws + Spade TerminalsFeatures:Custom 10-AWG nickel plated push terminalsExtended pole piece and bumped vented backplateHigh excursion Poly-Ether-Ester surroundHigh-temp voice coil with spun-laced Nomex® re-inforcement collarKevlar Fiber reinforced semi-pressed paper cone and ABS/Acrylic dustcapLinear spider with embedded 16 AWG tinsel leadsProtective PVC textured magnet coverReversable diamond cut cast aluminum trim ringRigid die-cast aluminum low profile basketVented spider cavityAnodized Aluminum Voice Coil FormerSpherically Vented MotorCEA-2031 CompliantSingle 12" sealed subwoofer enclosureSQL series built specifically for extra sound qualityDimensions in inches: 13.5" Width x 13.5" Height x 13.75" Top depth x 13.75" Bottom DepthVolume per sub: 1.0 cubic feet Machine precision cut mounting holes 3/4" heavy Dusty ConstructionMulti layers of high-grade glue ensure long life and no air leaking outHigh quality spring loaded terminalsDado end panelsMounting Depth: up to 13.75" (enough depth for any sub on the market)Designed, tested, and engineered to work with most of today's popular woofers. These enclosures are built with the quality additives needed to maximize the performance of any sound system.

Great Price Atrend A382-10CP for $95.99 Atrend A382-10Cp B Box Series 10-Inch Dual Down-Fire Subwoofer Boxes

Atrend A382-10Cp B Box Series 10-Inch Dual Down-Fire Subwoofer Boxes Review

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Technical Details

• Fits 2001 and Up Ford F250/350 Extended Cabs
• MDF Construction
• Completely Carpeted Enclosure With Rounded Edges
• 0.75-inch Speaker Baffles
• Custom Built for Under Seat Application

Atrend A382-10Cp B Box Series 10-Inch Dual Down-Fire Subwoofer Boxes Overview

Atrend A382-10Cp B Box Series Subwoofer Boxes (10-inch Dual Down-Fire)