Detailed Product Description
Professional USB SD Speaker TM2011

1) MP3 Player
2) USB /SD
3) Short Ciruit / DC / Over heat
4) Power Delay Protection

Amplifier Function Description:

1) MP3 Player: MP3 Player controller and control digital display
2) MP3. in: Accepts signal from SD/MMC/MS Card and USB jack、supports MP3 and Wma format
3) Level: Adjusts signal of the MP3 Channel
4) Level: Adjusts signal of the Mic.in Channel
5) Mic.in: Accepts signal from microphone
6) Level: Adjusts singal level of the line in channel
7) Line in: Accepts line level signal from external music source、such as Mixer
8) Volume: Controls the output level for the unit
9) Treble: Raise or lower amount of high frequency by +/-12dB
10) Bass: Raise of lower amount of lower frequency by +/-12dB
11) Power Led: Lights up when power is on
12) Clip led: Lights up when system signal level approaches clipping.
13) Line out: Sends a mixed signal of the unit at line level.
14) AC Voltage: Selectro (115V or 230V)
15) AC Socket (with fuse link): Connects power card
16) Power switch: Turns power on/off
Other Extra Optional function: a) Remote Control; b) Radio / FM; c): SPK OUT (run other passive speaker)
Speakers Description:
QSK12US: 12inch 300W 8Ohm Impedance
QSK15US: 15inch 450W 8Ohm Impedance