David Nordschow Amplification DNS series Features and Specifications Computer aided design, fine tuned by ear – We start out with our cutting edge CAD for speaker and enclosure modeling. We set setting up the overall design and determining the potential performance parameters of the speaker system. Then our development team plays and listens to how the speaker system works and we dial in the tuning and crossover design by hand until it’s as perfect as we can make it. By the time David’s ready to let anyone else listen to it, it’s already very close. Our team of testers plays our products with every style and technique they can come up with to ensure that by the time our clients get to use our products they are truly world class quality. Flared/dimpled tuning ports – This new patented technology delivers a stunning performance improvement over traditional porting systems. The aerodynamically flared porting features audibly lowers distortion and a much smoother, more efficient air flow than traditional designs can deliver. We find that this type of design significantly reduces normal port noise and excess turbulence. With more laminar air flow this patented design gives our enclosures superior low end articulation, clarity and overall performance. Our 210 and 410 speaker systems feature fully flared optimized shelf ports on the bottom of the cabinet. All our other cabinet designs feature round flared ports with a patented aerodynamic dimpling not unlike what gives golf balls there extra lift and increased range. Ultra High-power, Hi efficiency edge-wound Aluminum voice coils – Our 10” speaker designs feature a 2”, Ultra high-temperature voice coil capable of handling 350W RMS/700W Peak power. The 12” and 15” designs feature massive 3” voice coils to handle 450W RMS/900W Peak! Redesigned and Improved speaker cones – Our new custom formula features new materials and a much higher hemp content for increased durability and enhanced tonal response. DNA Designed Drivers– We have partnered with top USA OEM manufactures to produce our speakers and neodymium tweeters right here in the USA. . All our speakers are designed by us and are manufactured here in the USA. They all feature truly outstanding quality, leading edge performance and exceptional tone quality. Tractix Horn design with our old school phenolic dome compression tweeters – This horn design features an exceptionally smooth polar pattern and uses a very low distortion Compression plug design coupled to a phenolic diaphragm assembly. This design combination offers a much sweeter, smoother high end character than the typical metallic diaphragms. Metal diaphragms often exhibit harsh crystalline metallic overtones and high harmonic distortion levels. The traditional old school phenolic /cloth diaphragm design typically have a much smoother sound in the upper registers and significantly lower inherent harmonic distortion than the newer metallic diaphragms exhibit. The phenolic material is self damping @ high frequencies and rolls off smoothly vs. the metal diaphragms that tend to ring and chime and produce excessive harsh often uncontrolled overtones in the upper frequency ranges. Our tweeter design features significantly reduced ear fatigue and offers a more pleasing character sound with lower distortion than most other systems. Professional quality high power full 2-way 12/18dB crossover with automatic tweeter protection and a unique front-mounted tweeter level control – We have moved well beyond the normal simple high-pass filter most bass amplifier manufactures use, to a full 2-way crossover that allows us to fine tune the overall tonal balance for each cabinet design. Auto limiter tweeter protection, and a user friendly front-mounted tweeter level control complete the package. Tour rated enclosure design and construction: We start with the best materials available, AA void-free plywood for ultra-light enclosures – These designs are lighter than our previous designs and are even stronger. We use only the highest quality AA furniture grade plywood. Only material that has no voids or gaps in the interior core, is good enough to be used in our new ultra high output designs. Dado and Rabbet Joints are used throughout the cabinet designs. This David Nordschow Amplification 8/10/2010 David Nordschow Amplification DNS series Features and Specifications gives our products very tight joints and extra strong construction that can take a beating and keep on playing for years and years despite tough handling on the road. Extensive bracing – This creates a very ridged box that gives us accurate , enhanced Bass performance and great durability. Massive bracing is part of the ridged design planning. We use nearly twice as many brace elements as David’s previous designs, this ensures a clean focused response all the way down to the lowest notes. We have added large Heavy duty isolation feet to the enclosures to improve Bass performance on diaphragmatic stages (those flimsy ones that turn the stage into a badly tuned (drumhead). We have provided a heavy duty 16ga steel grill, black metal corners, corner mounted metal handles (on plastic insert) , and solid steel input plates for superior durability road worthy construction. . For technical specifications, see the Dealer Pricing and Specs sheet. David Nordschow Amplification 8/10/2010