NSR Concerto D3 Sonata Loudspeaker
Concerto D3 Sonata - "Best of Show 2008"
Product Reviews
Please see the following reviews: Writer's Choice Award, 6moons.com, The Stereo Times, Positive Feedback, Stereophile
With NSR loudspeakers you will not be prepared for the transformation this Patented loudspeaker will bring to you. As if you were hearing your music for the first time, you will hear nuances in music you never knew were there. With over 30 year's experience in the field, John Tabernacki has truly created a breakthrough product. The bass enclosure itself is an instrument and the rear flexes to absorb and refocus to give you that realism and articulation.
With NSR Loudspeakers nothing was left to chance - only hard physics and scientific applications. The Acoustic Projected Lens in simple terms refocuses the waveform to blend a focused spectrum of sound. There are 4 independant chambers, one for each driver, six in the flagship model, which are not only matched but optimized with their own proprietary technologys.

NSR Sonic Research Concerto D3 Sonata Loudspeaker in Radiant Red and Silver
Click Here to read an in depth NSR Sonic Loudspeaker Specifications Page
All drivers such as Seas, Vifa are of high quality standards and built to last. The heart of the system, the internal crossover, uses the Superb Linkwitz Riley network with only a few very high quality parts, which is in part what makes NSR Sonic Research Loudspeakers so natural and revealing.
Compare any loudspeaker to the D3 Sonata, even those at much higher cost, and it is evident these loudspeakers have rewritten the book as to what expect in articulation and naturalness throughout their operating frequency band.
Read all the show accolades and come have a listen for yourself. There are now several reviews in progress for these astonishing speakers.
This Loudspeaker is a very easy load for a Solidstate or Vacuum tube amplifier and is very room friendly.
There is no finer loudspeaker in it's respective price class this I personally will guarantee you.

Paired Concerto D3 Sonatas
NSR does not pursue system designs by merely following theoretical acoustic trends. Neville Thiele and Richard Small, while gifted mathematicians, were not speaker designers! Though their theory's revolutionized loudspeaker design, resonant box theory is still just that, theory. Trade-offs and losses are an inextricable byproduct of any system designed using these mathematical models alone.
An amplifier is designed to control a driver's potential for wayward movement through its damping factor. Although the amp may be successful at this, it cannot control the resonant air and turbulence within the box. The box may function optimally at a specific frequency, but throughout the spectrum range, may fail miserably.
Loudspeaker Build Options
Standard Model: The standard D3 Sonata includes the very good Auri Caps, the excellent Vishay Resistors, and the Erse Super Inductors.
Reference Xover: incorporate Duelund graphite resistors, Mundorf silver oil capacitors (or Dueland VSF capacitors) and the superb Solen Super inductors.
Both Models: Equipped with Cardas' best binding posts. All internal wiring is guaranteed to meet the highest audiophile standards.
With NSR Loudspeakers quality is always high, the additional cost equates to more absolute refinement. Please enquire about our introductory purchase offer.
Manufacturer
Product: Specifications
Site: NSR Sonic Research
PricingStandard: $4,895
Xover: $5,895
Dimensions: H48" x W11.5" x D16.5".
Weight: 90 lbs.
Minimum Amplifier Power: 7 WPC
Sensitivity:93.7db@1w
Frequency Response:+0,-3db 24Hz - 30 kHz
Color: Available in several beautiful finishes including red metallic, pewter metallic, silver, and Piano black. Ask about our custom colors and our Burl Walnut Bass Chamber Option.
All NSR Sonic Loudspeakers are proudly Made in the USA. Thank You.
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