MA-4075 is a new designed amplifier system with the innovation technology. It has Four zones selectors for each output channel with LED indicator and 5 channel independent inputs with gain, treble, bass, and volume control. In addition, MA-4075 also combines 5 channels of operation, power amplifier, balanced XLR combo inputs and stereo phone and monitor outputs.
Features
- Four independent channels
- Five sets of gain, treble, bass and volume controls
- Five groups VU meter for output level
- Three XLR+1/4 TRS combo input and two RCA inputs
- Phantom line inputs
- Telephone paging function, and monitor output
- Priority of MIC-1. VOX mute function.
- Input matrix
- output impedance 4Ω, 8Ω
- high output voltage : 25V-70V-100V
- Power output: RMS 40W X4 at 4 Ω
- Intelligent cooling fan
- 19" Rack mount type (3U size)
{tab Specifications}
Specifications
- Power Supply: AC 230V/ 50Hz Selectable
- Inputs: Sensitivity; CH1-3: Mic.: -42dB; Line: -20dB balance; CH4-5: Line: -10dB unbalance; Telephone paging: -25dB; Phantom: 15V
- Frequency response: 60-17000Hz-3dB
- Tone control: Treble: 12dB at 10kHz; Bass: ±12dB at 100Hz
- T.H.D: <1%
- S/ N ratio: Mic.>60 dB; Line>70 dB; Tel. >60 dB
- Priority for Mic-1: Sensitivity: -35 dB
- Outputs impedance: 4Ω, 8Ω
- Output constant voltage: 25V -70V -100V
- Power output: RMS 40W x 4 at 4Ω
- Indicate LED: 5VU meters (LED type); 1 Power indicator; 5 Mute indicators
- Dimensions (WxHxD): 483 x 132 x 310mm (19" x 5.2" x 12.2")
- Weight: 15.1kg (33.28 lbs)
Appendix to Manual: Over-riding Announcements
For emergency announcements or other important announcements, the MA-4075 is equipped with the input TEL. PAGING.
To connect, feed the signal line (line level, 40mV~1.5V) via a screened audio cable to the terminal (R). Connect the ground and screening to the terminal (G). Finally connect a switch beteen the terminals (T) and (G). The announcement signal is always present at terminal (R) but it can only be heard when the switch is closed.
