DC5-12V EQ-7 Audio Signal Preamplifier 7 Band Equalizer Adjust High School Bass Sound Phone Computer Headphone Amplifier

Feature:

1, seven stage balance adjustment range ±12db, composed of TI or ST original TL074 circuit.

2, 60HZ, 150HZ, 400HZ, 1KHZ, 3KHZ, 6.5KHZ, 15KHZ seven frequency bands, the knob in the middle for the origin, counterclockwise for attenuation, clockwise for lifting.

3, about the frequency description, 60HZ for the bass, 150HZ for the bass, 400HZ for the bass, 1KHZ for the alto, 3KHZ for the treble, 6.5KHZ for the treble, 15KHZ for the super treble, according to personal listening preferences to adjust.

4, pre-amplification gain :4580 classic op amp provides 5 times amplification (14db).

5, the ear amplifier part uses two NE5532 composed of 47 earphone drive circuit, easily drive various types of earphones 16-600 euros.

6, input impedance 20K, output impedance 600 euros.

7, 3.5mm input and output interface support 3-pole / 4-pole plug, headphones with microphone can be normal voice calls on the mobile phone, suitable for game enthusiasts and music enthusiasts, another group lotus interface terminal is available.

8, power supply: between DC5V-12V, the interface specification is 5.5*2.1, 5V power supply is about 390ma static current, 12V power supply is about 140ma, power consumption is about 1.8w.

Product parameters:

Voltage: DC5-12V

Power interface: 5.5*2.1 interface

Audio interface: Lotus RCA

Length width height :11.4*8.5*3.2cm

Package included:

1 x DC5-12V EQ-7 Audio Signal Preamplifier 7 Band Equalizer Adjust High School Bass Sound Phone Computer Headphone Amplifier

Attention:

1. Input 3.5 cannot be used at the same time as Lotus port. Output 3.5 can be used at the same time as Lotus port.

2. Can use a charging bank or high-quality charging head power supply, power supply is not pure may have a hum.