เครื่องขยายเสียง ยี่ห้อ JBL รุ่น VMA1120
FEATURES
- Suitable for commercial and industrial use
- Euroblock, RCA, and 1/4″ TRS input connectors
- Independent bass and treble controls for each output channel
- Voice-activated ducking during announcements
- Remote volume control capability using optional JBL CSR-V module and Cat5e cable with RJ45 connectors
- Priority muting using PTT switch closure
- Configurable output routing
- Barrier block output connections to drive 8 Ohms, 70V or 100V speaker systems
- Media player capable of playing MP3 files from a Bluetooth device or USB drive
SPECS
| Output Power | 120 W (per channel into 4 Ohms or 8 Ohms, 1 kHz, ≤0.5% THD) |
| Insertion Loss | 70 V and 100 V Outputs: 1 dB maximum |
| Input Channels | 5 |
| Output Channels | 1 |
| Tone Controls | Bass and Treble non-detented potentiometers on each channel Bass: ±14 dB @ 50 Hz Treble: ±14 dB @ 10 kHz |
| Input Sensitivity | To obtain full rated power (load of 8 Ohms) Mic Input: 5.5 mVrms Line Input: 1.3 Vrms RCA Input (Stereo In): 130 mVrms |
| Frequency Response | Measured at 2.83 Vrms into rated load impedance at any output 4/8 Ohms Output: 20 Hz to 20 kHz, ±2 dB 70 V/100 V Outputs: 80 Hz to 15 kHz ±3 dB |
| Total Harmonic Distortion (THD) | Measured at 2.83 Vrms into rated load impedance at any output Power Amp Output: |
| Signal-to-Noise Ratio | >76 dB (reference rated power, mixer levels @ minimum, master volume @ maximum A-weighted) |
| Input Impedance | Nominal Mic: 400 Ohms Line: 20 kOhms (balanced) RCA: 50 kOhms |
| Phantom Power | 27 VDC |
| Crosstalk | -70 dB (reference rated power, volume at mid position, 1 kHz) |
| Nominal Input Voltages | Nominal AC Line Voltages: 100, 120, 220, 220 to 240 VAC, 50/60 Hz |
| Minimum Load Impedance | Low Impedance Output: 4 Ohms 70 V Output: 40 Ohms 100 V Output: 80 Ohms |
| Operating Temperature | 32 to 95°F / 0 to 35°C |
| Humidity | 95% RH (non-condensing) |
| Storage Temperature | -4 to 185°F / -20 to 85°C |
| Dimensions (W x D x H) | 17 x 16.3 x 3.5″ / 432 x 415 x 88 mm |
| Weight | 20.2 lb / 9.2 kg |
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