MA4 | DSI MA4, 4 CH AMP, US VER
MA4
DSI MA4, 4 CH AMP, US VER
MA4
DSI MA4, 4 CH AMP, US VER
- UM : EA
The JBL MA4 is a 2RU, 4-channel amplifier designed for cinema audio applications, utilizing Crown DSI Digital Screen Array technology and 32-bit/96kHz floating-point DSP from the Crown CDi DriveCore series. It offers three power configurations and is available in analog and analog-plus-digital (“D”) versions, the latter supporting Dante/AES67 network connectivity. The amplifier supports bridgeable outputs and can operate in a 2O mode to power up to four surround speakers from a single channel.
The MA4 includes SNMP support for networked audio distribution and integration with third-party theater management systems. It features JBL Cinema Speaker presets to streamline configuration, optimize playback, and provide equipment protection. The D-model interfaces directly with Dolby Atmos systems without additional processing hardware. Crown DriveCore technology increases power density and stability by consolidating internal components into a single processing chip.
Features:
- 4 channels with bridgeable outputs
- Engineered to meet JBL cinema speaker power requirements
- High power output at 2O for up to 4 surround speakers per channel (SA and MA models)
- D-models interface with Dolby Atmos directly
- SNMP and ethernet connectivity for networking and third-party control
- Dante/AES67 connectivity on SA4-D, MA4-D, and LA4-D models
- HiQ port for HARMAN Audio Architect control software via TCP/IP
- 96kHz/32-bit floating-point processing with FIR filtering, LevelMAX limiting, 8-channel parametric EQ, and delay settings
- Crown DriveCore technology for efficiency and reliability
- Built-in JBL Cinema Speaker presets with power-matching
- Recall presets, mute channels, monitor amplifier health, and power control via GPIO/AUX port
- Intuitive front-panel LCD and encoder interface
- Ultra-quiet operation: 51dBA maximum fan noise
- Standard 19-inch 2RU rackmount
- Frequency response: 20 Hz–20 kHz
- THD: 0.35%
- Power supply: 100–220V ±10%, 50/60 Hz
- Standard IEC type power connector
- Accommodates 10AWG wire
| Front-panel interface | mute and configuration with encoder |
|---|---|
| Front-panel display | LCD and signal LEDs (input/output) |
| Channels | 4 |
| Analog audio input | block connector |
| Speaker output | barrier terminal block, supports 10AWG wire |
| Network/monitoring/control | RJ-45 |
| GPIO/AUX | 2in/2out block connector |
| Power | standard IEC |
| Digital signal processing | 96kHz, 32-bit floating point |
| Rated power (8O) | 750W x 4 |
