DC/AC 9 ~15V Audio Amplifier A30 Pre-amp Amplifier HiFI High Performance Headphone Amplifier DIY K701

  • Item ID #200228
Qty.:

List Price: $35.50 Our Price: $18.50Save 48%

Price(per unit)
1-4
$18.50
5-9
$17.58
10-19
$16.65
20-29
$15.73
30+
$14.80
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It is a Audio Amplifier/Headphone Amplifier, Power Supply: DC/AC 9 ~15V, It has small size, high efficiency, long term stable and reliable quality,easy installation and use. Suitable for Smartphone, tablet PC, CD player, DAC decoder, digital player etc.


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Power input:
  • Support DC positive-negative power supply input 9 ~15V, or can use two pieces of 9V batteries charged.
  • Dual AC 12 ~16V, recommend AC dual 15V (15V ~ 0 ~ 15V)
Open introduction:
  • 1. Insert the 3 AC power cord of the E transformer into the connection of the amp power input, and tighten with screwdriver;
  • 2. Connect the audio player with audio incoming line;
  • 3. Set the amp volume to the lowest;
  • 4. After confirming all the correct connection, power on the player first, then power on the amp;
  • 5. Insert the headphone wiring, set suitable volume.
Close introduction:
  • 1. Remove the headphone wiring;
  • 2. Power off the amp;
  • 3. Power off the audio player.
Features:
  • 1. Support two types of power input, AC and DC.
  • 2. Strong output driver with two double op amp in parallel.
  • 3. Design for Smartphone, can perfectly match week signal audio player under 1V, such as Smartphone, tablet PC, CD player, DAC decoder, digital player etc.
  • 4. Quiet background without noise.
Warning:
  • 1. Don't insert or pull out the audio incoming line on the condition of charged!
  • 2. Don't insert or pull out the player on the condition of charged!
  • 3. Please connect the right power incoming line of A30!(For example: Short circuit can't happen among the three power incoming lines.)
Package includes:
  • 1 x Headphone Amplifier


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