SPRM 307 MIXER AMPLIFIER 200W

zoomable
  • General Features
  • Technical Specifications
• Full digital function selective
• Separate volume control 3 microphone inputs
• Music broadcast output and control to the telephone exchange
• Special warning gong with 4 beats before announcement
• Music tone control & Announcement tone control
• On-off switch and light
• Auto-gong & Auto-fader (With announcement sound
• Automatically mute the music stream)
• 12 digit Vu-meter
• Protection signal led
Entries; 2 mics. 600ohm 1mV (60dB)
2 line input 500ohm 100mV
CD, Tape, Tuner 12 kohm 80mV
frequency band; 60-18kHz.
Tone control; Bass 10dB 100Hz.
Treble 10dB 12kHz.
Output Level; 25ohm – 750mV
Supply Voltage (AC) 200-240V / 50-60Hz.
Supply Voltage (DC) 12V, 24V
Dimensions; 125*274*480mm
Weight; 5.8kg
Output Power 100W
Output Voltage 70V, 100V
THD < 0.1%

It is the unit where the selection of microphone and music sources, volume and tone controls are made digitally. In this device, a special gong is activated before the announcement. The music, sensitive to human voice, automatically decreases to the preset level and waits for the announcement. At the end of the announcement, the music continues to broadcast at its previous level.

 
1. The "ON/OFF" switch of the SPRM 307 Mixer Amplifier is switched on. It is observed that the led light is on.
 
2. Whichever music source is to be broadcasted (TAPE, CD, TUNER, MP3 Player), that music source is entered into the AUX1 or AUX2 channel. Whichever AUX channel is entered, the volume of that channel is turned on. When the music source is switched on, the music broadcast reaches the broadcasting area.
 
3. The volume of the selected music source and whether the music broadcast signal reaches the Power Amplifiers is checked by flashing the LEDs on the VU-METER. 
 
4. The tone controls of the music broadcast BASS, TREBLE and VOLUME settings are made.
 
5. The microphone we will make an announcement is connected to one of the MIC1-MIC2-MIC3 channels.
 
6. The volume level is adjusted from the pot of the channel to which the microphone is connected. "TREBLE" and "BASS" tone settings are made according to the person who will make the announcement.
 
7. Protection LED lights up when the fuse automatically blows in case of short circuit, overload and overheating. In this case, the device should be turned off from the POWER Switch and the service should be notified.
 
8. When an announcement is wanted to be made while music is playing, the music volume automatically decreases to the set level sensitive to human voice and waits for the announcement. At the end of the announcement, the music continues at the previous level.