Product Description
The JBL VMA1240 is a remarkable 240-watt channel mixer and amplifier with Bluetooth. The JBL VMA Series offers a cost-effective solution with low impedance functionality (4, 8) and high impedance 70V and 100V output. It's designed with user-friendly and flexible features, making it a top choice for commercial integrators around the world, especially in emerging markets.
Key Features:
- Five inputs and one 240-watt power output.
- Independent bass and treble controls for each output channel.
- Options for 100V and 70V output, or 4/8 impedance.
- Paging chime and priority muting functions.
- Compatible with JBL CSR-V wall controllers.
- Balanced mic/line inputs and RCA (.775V) inputs.
- Rack mounting hardware is included.
Technical Specifications:
- Max Output Power per Channel: 240W into 4 or 8, 1kHz, <= 0.5% THD.
- Insertion Loss: 1dB maximum (70V & 100V outputs).
- Number of Inputs: 5.
- Number of Outputs: 1.
- Tone Controls: Bass +/-14dB at 50Hz; Treble +/-14dB at 10kHz.
- Input Sensitivity: Mic Input 5.5mVRMS, Line Input 1.3VRMS, RCA Input (stereo in) 130mVRMS.
- Frequency Response: 4/8 Output 20Hz - 20kHz, +/-2dB; 70V/100V Outputs 80Hz - 15kHz +/-3dB.
- Total Harmonic Distortion (THD): <0.5%, 20Hz - 20kHz.
- Signal to Noise Ratio: >76dB.
- Input Impedance: Mic 400, Line 20k (balanced), RCA 50k.
- Phantom Power: 27VDC.
- Crosstalk: -70 dB.
- Nominal AC Line Voltages: 100V, 120V, 220V, 220-240V, 50/60 Hz.
- Minimum Load Impedance: VMA1240 4, 20, 40.
- Operating Temperature/Humidity: 0 C to 35 C at 95% R.H. (non-condensing).
- Storage Temperature: -20 C to 85 C.
Using the JBL VMA1240 is easy. First, connect your devices to the inputs. You can use the balanced mic/line inputs or the RCA inputs for your audio sources. Then, adjust the independent bass and treble controls for each output channel to get the sound you want. You can choose between 100V and 70V output or 4/8 impedance depending on your setup.
When using the paging chime and priority muting functions, make sure you understand how they work to effectively manage your audio. The mixer also works well with JBL CSR-V wall controllers, so you can integrate it into your existing system.
For maintenance, keep the device in a clean and dry environment. Avoid exposing it to extreme temperatures and humidity. The operating temperature should be between 0 C and 35 C at 95% relative humidity (non-condensing), and the storage temperature can range from -20 C to 85 C. Check the connections regularly to ensure they are secure. If you have any issues, refer to the technical specifications for troubleshooting.
