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Affordable High End Headphone amplifier + USB-DAC
The μAMP109G2+ is the New Generation of uAMP109+ with improved the features, it is a small high end portable headphone amplifier that has the additional benefit of a BASS control which makes headphone listening more flexibility.
The amplifier also has a built-in DAC and can be directly connected to an USB-port of a computer. The sound quality of this DAC crystal clearly surpasses that of standard quality soundcards.
PERFORMANCE SPECIFICATIONS:
| Amplifier Class |
A |
| Input Impedance |
10,000 Ohm/Channel |
| Input Level |
0V to 3000mV (4V max) |
| Frequency Response |
5Hz to 300,000Hz -0.1db |
| Analog Input |
1/8”(3.5mm)Stereo TRS phone |
| THD+N |
<0.00003% (5Hz to 27KHz) |
| Digital Input |
Mini USB 5pin |
| Digital Sampling Rate |
32, 44.1, 48KHz |
| Digital Transceiver |
Full speed USB 1.1 & 2 |
| DAC Resolution |
16 bit Delta Sigma Stereo |
| DAC THD+N |
<0.0003% modified |
| Output |
1/8”(3.5mm)Stereo TRS phone |
| Headphone Drive |
16 Ohm to 600 Ohm |
| Output power |
Up to 1200mW/Chanel RMS |
| Output coupling |
Direct (No Capacitor) |
| Output Impedance |
<3 Ohm/Chanel |
| Gain |
Linear adjustable from 1 to 6 (0 to +15db no steps) |
| Bass Boost |
Variable from 0 to +6db with knob (5 to 150Hz) |
| S/N Ratio |
>110db |
| Virtual Ground |
600mA sink/source ±0.1% |
| Indicators |
1 Blue LED for Power
1 Red & Green (Bi Color) LED for Charger |
| Power Switch |
combined with Volume |
| Charger |
Intelligent internal Charger |
| DC Power |
1 X 9V Li- ion Battery MS600 (included) |
| AC Power |
90 to 240V Switching Wall Adapter (included) MS121 Regulated |
| Battery Life |
Up to 12 hours Continues use and up to 30 hours partial use (normal use) |
| Weight |
7.2 Oz (205g) |
| Size |
2.5” W X 3.4” L(4.0”with knob) X 1.18”H
[6.3cm W X 8.0cm L(10.1cm with knob) X 3.0cm H] |
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1- Maximum output power on each channel regardless of different headphone impedances.
2- It’s relative to many parameter such as output level, bass level, gain level and headphone
impedance. ( 9 to 12 hours for continues use in normal condition)
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AMPLIFIERS
