Instruction/ maintenance manual of the product SA-2 NHT
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SA-2 Subwoofer Amplifier Now Hear This 535 Getty Court Benicia, CA 94510 800-NHT -9993 OWNER’S MANUAL .
1. READ INSTRUCTIONS - All safety and operating instructions should be read before the appliance is operated. 2. RET AIN INSTRUCTIONS - Safety and operating instructions should be ret ained for future reference. 3. HEED W ARNINGS - All warnings on the appliance and in operating instructions should be adhered to.
Thank you for your purchase of the NHT SA-2 monaural subwoofer amplifier . Please t ake a few moments to read through this Owner ’s Manual prior to inst alling your new amplifier and/or subwoofer system. The information provided can help you to obt ain maximum performance from your audio system.
Design NHT product s are designed to deliver refined, musical sound from attractive and affordable p ackages. Our effort s are guided by the study of human hearing and are optimized for real-world use. Every NHT product undergoes rigorous testing and quality control at the factory to ensure you years of listening pleasure.
3 (A) Power Switch - T urns the unit on and off (B) Power / St atus Light - Tri-color LED: Green (On), Orange (S t andby), Red (Protect) (C) V olume Control - Adjusts the loudness of the subwoofer ind.
General Connections Caution: Prior to connecting the SA-2 to your system, it is important that all AC power connections to associated components (receivers, amplifiers, pre-amplifiers, processors, etc.) are either unplugged or turned off. Do not plug in or connect the SA-2 to AC power until all connections have been made.
tings on the same track. Do not attempt to evaluate the best sound while standing above the subwoofer or amplifier , as the sound at the listening position will be significantly different. Subwoofer V olume Control The SA-2’s front p anel VOLUME CONTROL allows you to adjust the volume of the subwoofer relative to the rest of the system.
This method of connection allows your main speakers to receive the full-range audio signal (no high-pass filtering), and the subwoofer to be utilized for low bass extension only . 1) Y our L & R speakers are connected directly from your amplifier / receiver .
This method allows your main speakers to receive a high-pass filtered signal (not full range), and the subwoofer to be utilized for low- to mid-bass reproduction.
This method of connection is recommended if you have a receiver with no line level preamplifier output of any sort and you want your L & R speakers to receive a high-pass filtered signal. The SA-2 may be connected to the system at speaker level between the receiver and the speakers.
This method of connection is recommended when you have a receiver with no line level preamplifier output of any sort and you want to run your speakers full range (no high-pass filtering). If your receiver features two set s of speaker output terminals (“S peaker A” and “S peaker B”), you may use “S peaker B” to connect the SA-2.
Fine T uning the Subwoofer The frequency chart below lists some terms commonly used to describe dif ferent bands of the frequency spectrum. The key to good subwoofer / speaker integration is repeated listening, followed by small re-adjustments of the subwoofer controls.
Multiple Subwoofer Configurations: Using two SW2Si subwoofers While the addition of a powered subwoofer system results in significant improvement s to an audio or home theater system, there are some potential drawbacks to the use of a single subwoofer in certain rooms.
This connection method routes the full-range line-level signal from the preamplifier through the SA-2, which passes on a high-pass filtered signal to the main amplifier and powers the subwoofer sections of the speakers directly with a low-pass filtered signal.
This connection method results in sending a full-range line-level signal to both the main amplifier and the SA-2. If you have a separate preamplifier that features two sets of line output s, each set is connected to one amplifier . If the preamplifier features only one set of line outputs, use “Y”-adaptors to split the signal.
This connection method may be employed if your receiver has no line-level preamplifier output. The speakers and the SA-2 are con- nected in parallel of f the receiver ’s speaker output terminals.
Recommended biamplification settings: 1) SUBWOOFER PHASE: 0° . If the main amplifier inverts phase, use 180°. If you are unsure about this, select the setting that result s in higher bass output with the volume control unchanged.
T roubleshooting If the amplifier fails to operate when the Power Switch is turned on, check the power cord and all the input and output connections thoroughly . If the front panel st atus LED is red, the unit is in “protect” mode. This could be caused by incorrect wiring, short circuits, or excessive volume.
W arranty (V alid Only in the U.S.A.) W arranty Period: For the period of 5 years for parts and 5 years for labor for loudspeaker product s and 1 year for part s and 1 year for labor for electronic co.
An important point after buying a device NHT SA-2 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought NHT SA-2 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data NHT SA-2 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, NHT SA-2 you will learn all the available features of the product, as well as information on its operation. The information that you get NHT SA-2 will certainly help you make a decision on the purchase.
If you already are a holder of NHT SA-2, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime NHT SA-2.
However, one of the most important roles played by the user manual is to help in solving problems with NHT SA-2. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device NHT SA-2 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
