NHT Comprehensive Technical Specifications and Driver Information for 3.3 Models

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!Model 3.3 Technical Specifications

System Type: 4-way acoustic suspension design, Focused Image Geometry

In-Room Response at 1M: 23Hz - 26KHz, +/- 2dB, typical

In-Room Response at 2M: 23Hz - 26KHz, +/- 4.5dB typical

In-Room Low Frequency Cutoff: 22Hz at 3dB

In-Room Low Frequency Useful Limit: 19Hz at 6db

Distortion at 87dB SPL: <0.4%, 35Hz to 20KHz; <2.5%, 20Hz to 35Hz

Distortion at 97dB SPL: <1.1%, 45Hz to 20KHz; <6%, 20Hz to 45Hz

Sensitivity: 87dB (2.83V at 1M)

Impedance: 6 ohms nominal, 4.3 ohms minimum, 10.5 ohms maximum, no phase angle over +30°

Recommended Amplifier Power: 30 Watts to 300 Watts per channel, 1000W peak input

Inputs: 1 pair of gold-plated 5-way binding posts for woofer input 1 pair of gold-plated 5-way binding posts for mid / high input

Weight: 123 Ibs. each

Dimensions: 42"H x 7"W x 31 "D, not including grille or stabilizer kit

Finish: Italian black satin laminate, high-gloss mahogany or sycamore laminate

Driver Information:

Subwoofer:

12" polymer cone in 70-liter acoustic suspension enclosure Ultra-long throw 2-layer voice coil

59 oz. magnet in die-cast frame 19Hz free-air resonance

Fc = 35Hz, Q[C = 0.65 12dB/octave low-pass at 100Hz

Lower Midrange:

6.5" polymer cone in 10-liter anti-modal enclosure Long-throw 2-layer voice coil

42hfz free-air resonance Fc = 67Hz, OK; = 0.66

12dB/octave high-pass at 100Hz; 12dB/octave low-pass at 320Hz

Upper Midrange:

4 polymer cone in 3-liter anti-modal enclosure Fiber-composite molded frame

110Hz free-air resonance

12dB/octave high-pass at 320Hz; 18dB/octave low-pass at 3.5KHz Impedance compensation

Tweeter:

1" fluid-cooled aluminum dome 1.4KHz resonance 18dB/octave high-pass at 3.5KHz Impedance compensation

• Crossover Information:

Top quality, low distortion components, minimal topology 14 AWG soldered internal wiring

2-terminal biamplifiable, with passive network remaining in-circuit

Specifications are subject to change without notice, in accordance with our policy of continuously upgrading the performance of our products.

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Contents Model Model 3.3 Reference Loudspeaker Ownership RecordSpikeKit Installation Design GoalsTechnology Model 3.3 and Home TheaterMove the speakers within 3 of the front wall PlacementDetermine rough placement by listening position Install the metal cones Adjust speaker tiltConnections Final points to rememberBiamplification Connection MethodsFull Range Maintenance BiwiringBreak-In Period OperationModel 3.3 Technical Specifications Performance Data THD + NLimited Warranty Valid Only in the U.S.A Warranty Period What’s Not Covered