LTM PRA-150 User manual

Part number:PRA-150
USER’S MANUAL
Please read this manual carefully and proper take care of this manual
PROFESSIONAL POWERED SPEAKER 15”
1.Player Mode Changing. Push this button, USB/SD/BLT sourcing changeable.
2.Volume-/Backward: Push this button and release, play the last file; Push
the button and hold it, decrease the playing volume.
3.Volume+/Forward: Push this button and release, play the next file; Push
the button and hold it, increase the playing volume.
4.Repeat Button: Repeat the playing song.
5.Play/Pause Button.
Configuration: 15" 2-WAY
Frequency Range (-10dB): 40Hz-20KHz
Power Capacity: 300W
Nominal Impedance: 4 ohms
Sensitivity (1W@1m): 98dB(±2dB)
Crossover Frequency: 3KHz
Maximum SPL: 118 dB
Input Connectors: XLR&RCA
Dimensions (HxWxD): 755x515x475 mm
Net Weight: 22 kg
MP3 USER MANUAL
TECHNICAL SPECIFICATIONS
3
1 2 3 4 5

BOX SPEAKER CONTROLS PRA-150
12
1. LEVEL
The knobs adjust the volume of the each input channel.
2. BASS
The knob adjusts low frequency volume of the amplifier.
3. TREBLE
The knob adjusts high frequency volume of the amplifier.
4.MIC / LINE INPUT
Mic input accepts XLR-type connectors and is designed to suit a wide
range of balanced or unbalanced signals. We recommend to use
professional balanced dynamic, condenser or ribbon Mics as they are
the least likely to be interfered. Low-cost, high impedance Mics can
also be used but not recommended, as the level of background noise
will be higher since unbalanced circuit is far more susceptible to
pickup interference.
5.MIC / LINE BUTTON
This button is used to switch the microphone input and line input.
6. LINE IN INPUT
Line input accepts 1/4 TRS plug with balanced or unbalanced line. It
accepts all kinds of signals from sources such as keyboards,
electronic drums, tape recorder, etc. Except microphone signals,
which when you use unbalanced 1/4 TRS plug, the line input
automatically turns the ring into ground, thus using unbalanced
1/4 TRS plug with this mixer is not recommended.
7. LINE OUT
Line output accepts 1/4 TRS plug line. Output stereo signals to
relevant music playing sets.
8. VOLUME
The knob adjust the master volume of the amplifier.
9. Power Switch
This switch turns on / off the unit.
10. Universal AC input connector
Connect the power cord to the AC input connector before turning
on the power switch.
12 3
4 6 7 8
910
5