NHT model 2.9 Guia Do Utilizador
Thank you for your purchase of the NHT Model 2.9 Tower Loudspeaker. Please take a few minutes to read through this Owner’s Manual
prior to installing your new speakers. The information provided will help you to obtain maximum performance from your audio system. If
you have questions or need assistance at any time during the installation or operation of your new speakers, please call your NHT Dealer
or our Toll-Free Customer Hotline at:
prior to installing your new speakers. The information provided will help you to obtain maximum performance from your audio system. If
you have questions or need assistance at any time during the installation or operation of your new speakers, please call your NHT Dealer
or our Toll-Free Customer Hotline at:
1-800-NHT-9993
Please retain the Model 2.9’s packaging to protect the speakers in the event that you move or transport them.
Design
NHT loudspeakers are designed to deliver refined, musical sound from attractive and affordable packages. Our efforts are guided by
the study of human hearing and are optimized for real-world use. Every NHT speaker undergoes rigorous testing and quality control at
the factory to ensure you years of listening pleasure.
the study of human hearing and are optimized for real-world use. Every NHT speaker undergoes rigorous testing and quality control at
the factory to ensure you years of listening pleasure.
The Model 2.9 is a unique 4-way loudspeaker based on the design of the NHT flagship Model 3.3. The 2.9 shares the same
low-distortion upper range drive units, augmented by a custom-designed 10” sealed subwoofer with impressive excursion capabilities.
All drive units are designed in-house by NHT for precise frequency and radiation characteristics, and are housed in individually sealed
sub-enclosures within the 2.9 cabinet. Balancing the acoustic benefits of the 3.3’s radical cabinet design with a smaller, less
demanding enclosure that fits into more environments, the 2.9 delivers exacting performance for the most discriminating listener.
low-distortion upper range drive units, augmented by a custom-designed 10” sealed subwoofer with impressive excursion capabilities.
All drive units are designed in-house by NHT for precise frequency and radiation characteristics, and are housed in individually sealed
sub-enclosures within the 2.9 cabinet. Balancing the acoustic benefits of the 3.3’s radical cabinet design with a smaller, less
demanding enclosure that fits into more environments, the 2.9 delivers exacting performance for the most discriminating listener.
The Model 2.9 incorporates NHT’s proprietary Focused Image Geometry in a specially-designed enclosure that provides an optimal
acoustic environment for its drive units. The upper range drivers are located on a narrow front baffle that extends out into the room,
much like a minimonitor on a stand. This configuration minimizes room boundary effects such as side wall reflections, resulting in
superior imaging and a natural tonal balance. Meanwhile, the 10-inch long-throw subwoofer is mounted on the side of the cabinet for
consistent bass loading and to allow for the narrow front baffle.
acoustic environment for its drive units. The upper range drivers are located on a narrow front baffle that extends out into the room,
much like a minimonitor on a stand. This configuration minimizes room boundary effects such as side wall reflections, resulting in
superior imaging and a natural tonal balance. Meanwhile, the 10-inch long-throw subwoofer is mounted on the side of the cabinet for
consistent bass loading and to allow for the narrow front baffle.
Focused Image Geometry design determines the 21-degree angle which defines the 2.9's unique cabinet, as well as the sound
radiation pattern of the system. The irregular enclosure shape greatly increases the ratio of direct to reverberant sound, reducing
side-wall reflections and concentrating sound energy in the listening area. The exact angles at which the sound from the speakers
reaches the ears of centrally located listeners is calculated to create what is known in acoustics as minimum inter-aural cross-correla-
tion. This technique allows the Model 2.9 to properly recreate the natural acoustic ambiance and perspective contained in good
recordings. In addition, the radiating axes of the left and right speakers are crossed, providing time-intensity trading, so that the stereo
image remains focused and stabilized for a wider range of listening positions. The cabinet shape also reduces the formation of internal
standing waves, resulting in smoother midrange response.
radiation pattern of the system. The irregular enclosure shape greatly increases the ratio of direct to reverberant sound, reducing
side-wall reflections and concentrating sound energy in the listening area. The exact angles at which the sound from the speakers
reaches the ears of centrally located listeners is calculated to create what is known in acoustics as minimum inter-aural cross-correla-
tion. This technique allows the Model 2.9 to properly recreate the natural acoustic ambiance and perspective contained in good
recordings. In addition, the radiating axes of the left and right speakers are crossed, providing time-intensity trading, so that the stereo
image remains focused and stabilized for a wider range of listening positions. The cabinet shape also reduces the formation of internal
standing waves, resulting in smoother midrange response.
With the increasing popularity of home theater systems, many audio / video enthusiasts are building combined entertainment systems
for both music and movies. When the Model 2.9 is used in a home theater system, be sure to augment it with timbre-matched
speakers to ensure a seamless soundfield. The NHT AudioCenter-1 is the appropriate matching center channel speaker, while the
Model 2.9, 2.5i or 1.5 will function as matching surround speakers. Alternately, the HDP-2 is a good choice for rooms where a full-range
dipolar surround speaker is preferred.
for both music and movies. When the Model 2.9 is used in a home theater system, be sure to augment it with timbre-matched
speakers to ensure a seamless soundfield. The NHT AudioCenter-1 is the appropriate matching center channel speaker, while the
Model 2.9, 2.5i or 1.5 will function as matching surround speakers. Alternately, the HDP-2 is a good choice for rooms where a full-range
dipolar surround speaker is preferred.
Model 2.9 Specifications
· System Type: 4-way acoustic suspension design, Focused Image Geometry
· Driver Complement: 10” polypropylene long-throw subwoofer, 6.5” polypropylene lower midrange,
· Driver Complement: 10” polypropylene long-throw subwoofer, 6.5” polypropylene lower midrange,
4” polypropylene upper midrange, 1” fluid-cooled aluminum dome tweeter
· Crossover: 100 Hz 12dB/octave high-pass and low-pass, 320 Hz 12dB/oct. high-pass & low-pass
and 3.5 kHz 18dB/octave high-pass
· Response: 26Hz - 26KHz, +/- 3db
· Sensitivity: 87db (2.83V at 1M)
· Impedance: 6 ohms nominal, 3.3 ohms minimum
· Recommended Amplifier Power: 30W/ch minimum, 250W/ch maximum
· Inputs: 1 pair of 5-way binding posts for woofer input
· Sensitivity: 87db (2.83V at 1M)
· Impedance: 6 ohms nominal, 3.3 ohms minimum
· Recommended Amplifier Power: 30W/ch minimum, 250W/ch maximum
· Inputs: 1 pair of 5-way binding posts for woofer input
1 pair of 5-way binding posts for mid / high input
· Weight: 78 lbs. each
· Dimensions: 39"H x 7"W x 21.5"D
· Dimensions: 39"H x 7"W x 21.5"D
· Finish: High gloss black, mahogany or sycamore laminate
Specifications are subject to change without notice, in accordance with our policy of continuously upgrading the performance of our products.
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