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FiiO A3 - Portable Headphone Amplifier

Sell.com    Items for Sale    Phones, Cameras, Electronics    MP3 Players & Portable Audio    2SZ2X7   

FiiO A3 - Portable Headphone Amplifier

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.

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)




$99.00
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Seller Info
Sign-in Name: BAJANX (0) 
Member Since: 09-Oct-2016
Last Login: 2 weeks ago
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Listing Info
Asking Price: $99.00 US Dollars
Refund Policy: Ask seller for details.
Date Posted: last week



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