Behringer HA400 แอมป์ขยายหูฟัง
The Behringer MicroAMP HA400 is a very inexpensive, miniature 4-channel headphone amplifier. for stage or project studio use. The unit is equipped with separate operational amplifiers for each channel, and individual channel level controls.

Features
Ultra-compact headphone amplifier system for studio and stage applications
4 independent stereo high-power amplifier sections
Highest audio quality with virtually all types of headphones even at maximum volume
Phones Level control per channel
DC 12 V adapter included
Designed and engineered in Germany

Specifications
Number of Channels 4
Input Connections 1 x 1/4″ TRS Phone
Output Connectors 4 x 1/4″ TRS Phone
Maximum Output Level approx. 40 mW into 100 Ohms
Function Controls 4 x Level Knobs
Frequency Response 20 Hz – 20 kHz
THD + N Not Specified by Manufacturer
Noise Not Specified by Manufacturer
Power Supply DC 12V adapter included
Display No
Dimensions 4.1 x 2.25 x 1.8″ (103.6 x 57.2 x 46.5mm)
Weight (6.7 oz) (190 g)
Specialties Miniature 4-Channel Headphone Amplifier
Individual Channel Level Controls