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User Manual for FiiO A3 - Portable Headphone Amplifier Click to enlarge the picture
Contents of the user manual for the FiiO A3 - Portable Headphone Amplifier
- Product category: Headphone Amplifiers FiiO
- Brand: FiiO
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for FiiO Headphone Amplifiers
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User manual for the FiiO A3 - Portable Headphone Amplifier contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any FiiO product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official FiiO user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a FiiO product will considerably shorten its lifespan!
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Product description The black colored version of the Fiio A3 - Portable Headphone Amplifier is designed for mobile Hi-Fi listening applications and is compatible with a wide range of headphones, earphones, and other in-ear monitoring systems. The all-aluminum alloy body and chassis of the amplifier shields against electromagnetic interference and the built-in rechargeable 1400 mAh battery provides approximately 16 hours of operation on a four-hour charge via mini USB port. For I/O, it features an 1/8" stereo auxiliary input and an 1/8" stereo headphone output.
The device utilizes an OPA1642 as the voltage pre-amplifier and an AD8397 power amplifier to deliver a maximum power output of 450 mW at 16Ω (270 mW at 32 Ω) with a frequency response of 20 to 20,000 Hz, a signal-to-noise ratio of equal to or greater than 108 dB, and a T.H.D. of less than 0.004% into loads between 16 and 150Ω.
For controls, the amplifier includes a low-high gain toggle switch, a rotary volume control, and a fully discrete bass boost circuit that can be bypassed to decrease interference and lower the overall noise floor. In the Box FiiO A3 - Portable Headphone Amplifier (Black) USB Charging Cable Limited 1-Year Warranty Table of Contents
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Technical parametersFiiO A3 Specs | Input | 1/8" (3.5 mm) stereo aux | | Gain | GAIN=L: Sensitivity = 2.4 V
GAIN=H: Sensitivity = 0.8 V | | Output | 1/8" (3.5 mm) stereo headphone | | Volume Control | ALPS potentiometer | | Frequency Response | 20 to 20,000 Hz | | Crosstalk | ≥ 72 dB (Gain=H) | | Signal to Noise Ratio | > 108 dB | | THD | 0.004% at 1,000 Hz | | Channel Imbalance | <0.5 dB | | Balance Control | GAIN=L: Balance = 0.3 dB
GAIN=H: Balance = 0.2 dB | | Charging Time | 4 hours | | Power Supply | Mini USB Port | | Battery Capacity | 1400 mAhH | | Operating Time | Up to 16 hours | | Power Input | 5 VDC at 500 mA | | Input Impedance | 16 to 150 Ω | | Output Impedance | <0.2 Ω | | Output Power | 270 mW (32 Ω)
450 mW (16 Ω) | | Output Current Limit | 92.6 mA | | Output Voltage | 8.67 Vp-p | | Dimensions | 3.59 x 2.20 x 0.51" (91.2 x 56.0 x 13.0 mm) | | Weight | 3.2 oz (92 g) | | | | Package Weight | 0.5 lb | | Box Dimensions (LxWxH) | 5.2 x 5.2 x 1.0" |
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