Parameters:Max output power:150mW(16Ω)，16mW（300Ω）Distortion: <0.01%(10mW)SNR：≥100dB(A-WTD)headphone impedance:16Ω~300ΩFrequency Response:10Hz-48KHzUSB power supply port:DC5V ≥500mASize:87 X 58.5 X 9.6mmcase material:AluminumWeight:80g
Features:1. SAP-5 is the SAP-4S upgraded version. 2. sAp-5 has two kinds of zoom straight and Bass Boost mode. If your headphones or your favorite low sound like bass, sAp-5 is your best choice.3. sAp-5 is using the Nokia battery BL-5C and with battery transposon. it don’t need to weld when replace the battery. User-friendly design, easy to replace the battery, greatly reducing maintenance costs.4. W4 signal line audio fever profession recognized Japanese Oyaide single crystal copper wire processing, reduce the loss of signal transmission, protection of sound reproduction.5. sAp-5 portable headphone amplifier (amp) is for mobile phones, computers, ipad, MP3, MP4 and other equipment due to the output power or output current is too small, not enough to play a performance in a high-impedance headphones fever and professional design. sAp-5 performance headset lets you play as much as possible. Other Features:1. ALPS potentiometer left and right consistency and long life. This potentiometer used for high-end amplifier or other audio devices preamplifier2. Professional MAX9722 headphone amplifier chip. Each channel is 130MW/32 Ohms.3. Gold pin shielded 3.5mm headphone jack.4. ALPS switch, the contacts touch, good resistance to current large, Right: Shutdown; Middle; Power. Left: Bass Boost.5. Battery: Hight-capacity working hours, easy to use. Replaceable battery design, reduce maintenance cost.6. Large gold-plated contacts the battery holder.
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