VISO HP20 Owner’s Manual ENGLISH ®
IMPORTANT SAFETY INSTRUCTIONS ENGLISH OSHA GUIDELINES FOR NOISE EXPOSURE LIMITS CAUTION The Occupational Safety Health Administration (OSHA) has issued headphone usage recommendations for maximum daily exposure and sound pressure levels [measured in decibels (dB)]. A decibel is a unit of sound measurement that increases exponentially with volume. For example, conversational speech is typically around 60dB, and a rock concert in a stadium is often about 110dB.
INTRODUCTION Designed and driven by audiophiles, NAD VISO HP20 is made specifically for digital natives who understand the difference what clean, crisp sound makes to music lovers. The NAD VISO HP20 benefits from true headphone innovation that lets you sense the music around you, feel every beat, and hear a more open soundstage.
IDENTIFICATION OF PARTS AND ACCESSORIES ENGLISH 1 AIRLINE ADAPTOR • Use the supplied dual 3.5mm airline adaptor to connect your VISO HP20 with in-flight entertainment systems. USING APPLE CONTROL FEATURES FEATURE NOTES • Audio output jack configurations may vary on airplanes. Airline audio may not equal the high quality sound heard from your home audio equipment or portable source.
IN EAR MANAGEMENT FITTING TIPS ENGLISH EARTIP FITTING AND SELECTION To know whether the eartip is properly sealed within your ear, insert the eartip into the ear canal and try listening to ambient noises with no music playing. • • • Selecting the correct eartip for use with VISO HP20 will have a major impact on sound quality. With a proper fit and seal, the listener will be isolated from unwanted noise.
TROUBLESHOOTING ENGLISH CONDITION Low or no audio output. Crackling noise or intermittent audio. POSSIBLE CAUSES POSSIBLE SOLUTIONS Audio source is powered off. Power on audio source. Audio volume level is set to minimum. Set audio to medium volume level. No connection between audio source and headphone. Ensure full connection between headphone and audio source. Audio source is muted with Apple control feature. Press center button of Apple control feature to restore audio.
Rated power 1mW Frequency response (20 Hz – 20 kHz) ±1.5dB, -3dB at 15Hz Sensitivity (1kHz) 100dB Total Harmonic Distortion ≤ 1% Impedance, passive 16 ohms Transducer, type Dynamic driver Transducer, size 8mm ENGLISH SPECIFICATIONS NAD SHALL NOT BE HELD LIABLE FOR ANY TECHNICAL OR USER INTERFACE DISCREPANCIES IN THIS MANUAL. THE NAD VISO HP20 OWNER’S MANUAL MAY BE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. CHECK OUT WWW.NADELECTRONICS.
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