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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of NHT X2 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of NHT X2, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the NHT service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of NHT X2.
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Table of contents for the manual
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Page 1
X2 Active Crossover Now Hear This 6400 Goodyear Road Benicia, CA 94510 800-NHT -9993 OWNER’S MANUAL[...]
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Specifications X2 Active Crossover Frequency response: 15Hz - 220Hz +/-3dB through L/R input (continuously variable) 15 - 220Hz +/-3dB through LFE input (fixed) 50, 80, 1 10Hz-100KHz +/-3dB Distortion: < 0.01% subwoofer output @ 100Hz, 1V < 0.001% hi-pass output @ 1KHz, 1V Signal to noise ratio: >105dB at Hi-pass output >100dB at su[...]
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Page 3
Block Diagram and Schematic Below is a block diagram of the X2 crossover . This may be useful when integrating the X2 into your system. A schematic of the X2 is available on our website at www .nhthifi.com. This may be useful if you wish to modify any of the filter characteristics in the X2. This is only recommended for users with the correct t[...]
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Page 4
Line Output Line Input Line Input Line Input Line Input Speaker Outputs Speaker Outputs Speaker Outputs Speaker Outputs ++++ ++ + + ---- -- - - (Optional) L R A V Receive r or Surround P rocessor High High T ower L T ower R Low Low X2 Amplifier Amplifier Amplifier Amplifier Subwoofer Output T ower With S tereo Subwoofers[...]
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Page 5
T ower With Mono Subwoofers Line Output Line Input Line Input Line Input Speaker Outputs Speaker Outputs Speaker Outputs ++ + ++ + + -- - -- - - (Optional) L R A V Receive r or Surround Processor High High T ower L T ower R Low Low X2 Amplifier Amplifier Amplifier Subwoofer Output[...]
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Page 6
Satellite Subwoofer Systems The X2 can be used to crossover a mono or stereo subwoofer to a stereo satellite system as long as the desired crossover frequency falls into the 50 to 200Hz range. If using a mono subwoofer , three channels of amplification will be needed. If using a stereo subwoofer system, four channels of ampli- fication will be [...]
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Page 7
X2 Active Crossover Design The NHT X2 active crossover is designed to provide convenient front-p anel adjustment of the controls necessary to integrate one or two subwoofer(s) with a Left and Right satellite speaker or to biamp a 3-way tower loudspeaker . The unit has unbalanced RCA and balanced XLR inputs and outputs for connection with al[...]
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Page 8
On the rear panel of the X2 is a 3-position switch that determines the trigger mode: 1) On; the X2 is always on. 2) Audio; the X2 will automatically turn on when it detects an audio signal and turn of f after 20 min- utes with no signal. 3) 12V Ext; the X2 is remotely turned on when it detects a DC control signal from another com- ponent in your sy[...]
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Page 9
High Pass Filter Switch (Rear Panel) The High Pass Filter determines the range of frequencies that the main speakers ("satellites") will reproduce. For example, a high pass setting of 80Hz means that the main speakers receive a signal containing only frequencies above 80Hz. The 3-positon High Pass Filter is selectable between 50Hz, 80Hz, [...]
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Page 10
Gain Switch (Rear Panel) The Subwoofer Gain switch allows you to increase the gain of the X2 subwoofer output by 10dB. Normally , the factory default "0" position will give you a wide range of volume adjustment. However , if the sensitivity of your satellite speakers is greater than 93dB, your range of volume adjustment on the X2 may be l[...]
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Page 11
System S tatus Indicators (Front Panel) Located on the right hand side of the front panel are two LEDs. They are used to indicate the func- tional status of the X2 Crossover . P - Power LED (green) - indicates the X2 is on and in a ready condition. S - S tandby LED (amber) - indicates the X2 crossover is in "standby" mode. 8.5 Fine T [...]
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Limited W arranty V alid Only in the U.S.A. W arranty Period For the period of 5 years for part s and 5 years for labor from date of original purchase (the warranty period) from an author- ized NHT dealer , Now Hear This (NHT) warrants that if our product fails to function properly under normal use due to a man- ufacturing defect when installed and[...]