The NSMT Model 20M is a time coherent, point source, first order, two-way acoustic suspension loudspeaker system that is the result of years of research, innovation, and independent thinking, that have yielded many evolutionary refinements. As a result the 20M has exceptional ability to accurately reproduce music and to retrieve the ambiance of the musical performance.As proof of the "rightness" of the design, few loudspeaker image as well as the 20M. Several features contribute to the performance of the 20M. The 20M's combination of time coherent, point source, first order, two-way, acoustic suspension designs coupled with innovative cabinet and crossover designs and accurate voicing, make the Model 20M incredibly true to the source. As a result of its time coherent, point source, coincident driver array, the woofer and tweeter have identical acoustic centers and identical directivites at the crossover frequency. This produces a stable axiosymmetrical radiation pattern with smooth power response.This is further enhanced by a high quality minimalist first order crossover network. The cabinet of the 20M is finished in real walnut wood veneer. It is elaborately braced and the rear panel is sloped two degrees to eliminate box resonances and colorations. Furthermore, the vertical edges of the cabinet are accentuated with exotic Peruvian walnut hardwood inserts that are rounded to prevent sonic refractions and to enhance the appearance of the 20M. Special Features: Design: Magnetically shielded acoustic suspension, point source, first order, two-way acoustic suspension
Drivers: concentric 7.5 in cast frame TPX woofer, 1 inch soft dome tweeter
Crossover components: Perfect lay copper inductor, film foil capacitor, metal oxide resistor
Connectors: Supra Boxcon Bi-wire/Bi-amp, insulated five-way 24K gold plated binding posts for cables up to 7 AWG
Cabinet: Walnut veneered 3/4 inch braced anti-resonant MDF. The back of the cabinet is slanted 2 degrees, from the bottom to top of the back panel to eliminate standing waves in the cabinet.
Finish: Non-toxic, eco-friendly, water-based paint
Wiring: Silver plated copper to tweeter, multi-strand copper to woofer
Warranty: 10-year limited
Technical Data
Dimensions: 14 X 9 X 10 (H X W X D)
Frequency Response: 54 Hz-20 kHz +/- 3 dB
Bandwidth (-10 dB): 38 Hz - 20 kHz
Sensitivity: 87 dB 1 watt/m
Drivers (each loudspeaker): (1) concentric 7.5 inch coaxial die-cast magnesium basket with TPX cone and fabric dome high frequency unit.
Rated Impedance: 8 ohms
Minimum Impedance: 6.5 Ohms
Recommended Power: 30-200 watts
Finishes: Natural walnut veneer on MDF with black grills.
Weight: 50 pounds per pair Excerpts from Reviews "Small Footprint, Big Sound." "The [NSMT Mastering Series] 20M loudspeakers are nicely designed, solidly built, and eminently musical sounding performers. They throw a very nice soundstage with good speed and detail and are capable of good bass performance." "...the song that always does it for me is the classic, Cant Help Lovin Dat Man. Pianist Gene Harris performance is simply marvelous and I always want to stand and applaud every time his solo concludes.... The 20Ms ability to pull the listener into the performance is very important to this song." "... very high-quality craftsmanship and tight tolerances in the construction." "The tweeter actually showed incredible range, not getting hard or bright as the music became louder or more dynamic." "The 20Ms ability to pull the listener into the performance is very important..." "...this is a highly resolving , intimate-sounding speaker that will appeal to people who value high detail and clarity." Stereo Times "The 20M is a very different speaker ... because it uses a two-way coaxial driver from SEAS that looks like a single driver. It has the tweeter mounted inside the woofer, right where the dustcap would normally be. ...The idea in creating a driver like this is so that the speaker acts as a point source -- in other words, as close to a theoretical ideal of radiating sound from a single area. "I found that both the NSMT Model 10S and Model 5 have remarkable ability to cast a stable soundstage with excellent width and depth. This speaker does this too, but it also manages to focus its image more finely, making its imaging performance among the best I've heard." "I sat mesmerized by the precision with which the instrument was rendered." "Compares favorably to the Waveform Mach MC, Mirage MRM-1, Revel Performa M20 and Merlin TSM-SE; 'if you're seeking all-out minimonitor performance, put the unique Mastering Series 20M on your list." "Fit and finish are excellent..." "Imaging is stellar. " (Doug Schneider, Soundstage.com) Matching 24" Sandbag stands ($595) included in my price. See my other ad for a pair of NSM 10S monitors in walnut finish. Plus I have two NSM EXP subwoofers in satin black. Price is for a pair of 20M monitors and optional stands. Possible trades considered.
| 
