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JBL Professional MA4 Crown DSi 2.0 Series Next-Generation 4-Channel Amplifier for JBL Cinema Loudspeakers
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Models supply 4 channels of amplification with bridgeable outputs in a single 2RU footprint, and can power up to four JBL surround speakers with a single amp channel in high-power-density 2Ω mode. All DSi 2.0 series amps incorporate best-in-class, 32-bit/96kHz floating-point DSP and Crown DriveCore technology, which replaces hundreds of internal components with a single processing chip for superior power density, stability and audio fidelity. Cinema managers and integrators looking to maximize their power investment and future-proof their systems can count on the JBL DSi 2.0 series to deliver robust, reliable amplification in an efficient, cost-effective package.
JBL Professional MA4 Crown DSi 2.0 Amplifier Features:
- Each amp offers 4 channels with bridgeable outputs to easily power JBL's entire line of cinema speakers.
- Amplifiers are engineered to meet exact power requirements of JBL cinema speakers, for a single JBL cinema solution.
- A new amplifier design allows for high power output at 2Ω (SA and MA models), enabling up to 4 surround speakers to be powered by a single channel.
- D-models interface with Dolby Atmos directly, without the need for additional processing hardware.
- All models feature SNMP and ethernet connectivity for networking and third-party control; SA4-D, MA4-D and LA4-D models add Dante/AES67 connectivity.
- All models include a HiQ port to interface with HARMAN Audio Architect control software over a standard TCP/IQ network.
- Best-in-class, 96kHz/32-bit floating-point processing incorporates FIR filtering, LevelMAX limiting, 8-channel parametric EQ, delay settings and more.
- Crown DriveCore technology replaces hundreds of amplifier parts with a single chip, for superior efficiency and reliability.
- Built-in JBL Cinema Speaker presets match all JBL cinema loudspeakers; amps are power-matched with JBL cinema speakers for optimal performance and fast system configuration.
- Recall presets, mute channels, monitor amplifier health and power on and off through a combined GPIO/AUX port.
- SNMP connectivity allows direct interfacing with third-party theater-management and cinema-control systems.
- An intuitive front-panel LCD and encoder interface let you configure amplifier settings at the push of a button.
- Ultra-quiet operation: 51dBA maximum fan noise.
- All models are standard 19-inch (482mm) 2RU rackmount units.
- Weight: 23.2 pounds (10.5 kg.)
- Frequency response: 20 Hz-20 kHz.
- THD: 0.35%.
- Power supply: 100-220V +/- 10%, 50/60 Hz.
- Power connector: Standard IEC type, 320 inlet for detachable connector, 100-240V.
- Accommodates 10AWG wire.
JBL Professional MA4 Product Specifications:
USER INTERFACE | |
---|---|
Front-Panel Interface | Mute and configuration with encoder |
Front-Panel Display | LCD display and signal LED's (input/output) |
Channels | 4 |
CONNECTORS | |
Analog Audio Input | Block connector |
Digital Audio Input (Dante/AES67) | N/A |
Speaker Output | Barrier terminal block, accommodates 10AWG wire |
Network/Monitoring/Control | RJ-45 |
GPIO/AUX | 2in/2out block connector |
Power | Standard IEC |
POWER (1kHz, 20MS BURST, 2 CHANNELS DRIVEN, 0.5% THD MAX) | |
Rated Power (8Ω) | 750W x 4 |
Rated Power (4Ω) | 1,400W x 4 |
Rated Power (2Ω) | 2,100W x 4 |
Rated Power (8Ω Bridged) | 2,600W x 2 |
Rated Power (4Ω Bridged) | 4,200W x 2 |
PERFORMANCE | |
Digital Signal Processing | 96kHz, 32-bit floating point |
Voltage Gain (At 4,10,16dBu Sensitivity; 4/8Ω) | 35.5/29.5/23.5dB |
Frequency Response (4Ω, 20Hz - 20kHz) | ±0.5dB |
Total Harmonic Distortion (At full rated power, from - 30dB to full rated power) | 0.35% |
Analog input signal to noise ratio (ref.rated power, 'A'-WTD.) | > 105dB |
Analog Input Signal To Noise Ratio (Ref. Rated Power, 20hz To 20kHz) | > 99dB |
Intermodulation Distortion (60Hz And 7kHz At 4:1, From - 30dB To Full Rated Power) | ±0.35dB |
Damping Factor (20Hz To 100Hz) | > 1000 |
Crosstalk (Below Rated Power, 20HZ – 1kHZ) | > 80dB |
Common Mode Rejection (20Hz – 1kHz, Typical) | > 70dB |
DC Output Offset (With Inputs Shorted) | ±10mV |
Input Impedance (Nominally Balanced, Nominally Unbalanced) | 70 kΩ balanced, 35 kΩ unblanced |
Maximum Input Level (Low Amp Gain Mode) | +21dBU |
Load Impedance Stereo/Dual Mode | 2Ω –16Ω |
Load Impedance Bridge Mono | 4Ω – 16Ω |
Maximum Fan Noise (Ref. dB SPL @ 1M) | 51dBA |
ELECTRICAL | |
Power Supply | 100 – 220V ±10%, 50/60Hz |
Sleep | GPIO/AUX connector |
Physical | |
Dimensions (D x W x H) | 17.21 x 18.98 x 3.46 in (437.2 x 482 x 88 mm) |
Net Weight | 23.15 lb (10.5 kg) |
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