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Summary of Contents for NHT A-20
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Page 1: Owners Manual
A-20 Owners Manual A-20 Left Monitor Serial Number: A-20 Right Monitor Serial Number: A-20 Control Amplifier Serial Number: Copyright 2001 NHTPro, a Recoton Corporation Brand... - Page 2 Safety Instructions -- Please Read First CAUTION: To reduce the risk of electric shock, do not CAUTION remove the cover (or back). No user serviceable parts are RISK O F E L ECTRIC SHOCK inside; refer servicing to qualified personnel. DO N OT OPEN WARNING:SHOCK HAZARD-DO NOT OPEN.
- Page 3 8 ea. - Plastic Insulating Washers The A-20 Control Amplifier may be used on a shelf, or mounted in a standard 19” equipment rack using the screws and washers supplied. For rack mounting, remove and retain the four feet from the bottom of the amp chassis using a #2 Philips screwdriver.
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Page 4: System Connections
Replacing or extending the supplied cables with any other type will have a varying, and only partly predictable impact on the sound of the A-20. If your installation requires the use of alternative cables, you may consult the table listing our measurement data on a variety of cable types at www.nhtpro.com under the support section. -
Page 5: Power Indicators
VAC: This is a readout of the AC power line voltage being supplied to the A-20. It is useful for assuring that power conditions are correct and sufficient for all the equipment on the circuit. Sustained readings below 110 V may limit your maximum output levels, and could indicate that the AC circuit is overloaded. -
Page 6: Position Control
The A-20 may be adjusted for flat response at various listening distances. The maximum high frequency output is obtained with the control in the “FF” (far-field) position. Each control step attenuates 20 kHz by an additional .75 dB (towards the near-field position) with no effect on frequencies below 3 kHz. -
Page 7: Speaker Placement
Fig. 8 Ideal Monitor Placement The A-20 is capable of very high output levels, especially when listening in the near-field. Protect your ears and use common sense. Still, every speaker system has its limits. Harsh breakup at extremely high volume, or heat emanating from the drivers is an indication that the system has exceeded its output limits and you should lower the playback level. -
Page 8: System Specifications
SYSTEM SPECIFICATIONS: Type: Modular, two- piece powered near/mid/far field monitor. Configuration: 2-way acoustic suspension. Woofer: 6.5" curvilinear treated paper. Butyl surround. Tweeter: 1" metal dome, textile surround, ferrofluid cooled and damped. Magnetic Shielding: Partial, 12-18” working distance from PC monitor recommended. PERFORMANCE SPECIFICATIONS: Amplifier Power: 250W (continuous RMS/ch), 400W (100ms peak).
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