Cinema managers and integrators looking to maximize their power investment and future-proof their systems will be thrilled with the DSi-Series SA4-D, a 350W 4-channel power amplifier that’s designed for JBL cinema loudspeakers offering outstanding quality and performance in a rack-mountable enclosure.
The amplifier features a remarkable 96 kHz/32-bit digital signal processing with delay, 8-band parametric EQ, crossovers, FIR processing, LevelMAX limiting, and more. The integrated DriveCore technology incorporates hundreds of amplifier components into a single chip for superior efficiency and reliability. With its updated design, the SA4-D allows for high power output at 2 ohms, enabling up to four surround speakers to be powered by a single channel. There are built-in cinema speaker tuning presets that match all JBL cinema loudspeakers for optimal performance, protection, and easy deployment.
The font panel features an LCD and encoder to configure amplifier settings and mute channels at the touch of a button. The rear panel provides four analog inputs via two Euroblock connectors and two terminal strip speaker outputs to connect up to four speakers. A HiQnet (RJ45) port allows the amplifier to connect with HARMON Audio Architect control software over a standard TCP/IP network. A GPIO/AUX port allows you to externally recall presets, mute channels, monitor amplifier health and power the amplifier on or off. The LA4-D includes DANTE/AES67 support for seamless integration with Dolby Atomos Connect and other interfaces.
Features
- 96 kHz/32-bit floating-point processing with FIR filtering, LevelMAX limiting, 8-channel parametric EQ, delay, and more, eliminating the need for an external speaker processor
- SA4-D, MA4-D, and LA4-D models include Dante/AES67Â support for seamless integration with Dolby Atmos Connect and other interfaces
- Crown DriveCore technology replaces hundreds of amplifier parts with a single chip, for superior efficiency and reliability
- Four channels with bridgeable outputs to easily power JBL’s entire range of cinema speakers
- New amplifier design allows for high power output at 2 ohms, enabling up to 4 surround speakers to be powered by a single channel
- Built-in JBL cinema speaker tuning presets match all JBL cinema loudspeakers for optimal performance, loudspeaker protection, and accelerated deployment
- SNMP to interface with third-party Theater Management Systems (TMS) and cinema control (NOC) systems
- HiQnet port to interface with HARMAN Audio Architect control software over a standard TCP/IP network
- Externally recall presets, mute channels, monitor amplifier health and power on and off through a combined GPIO/AUX port
- Intuitive front-panel LCD and encoder to configure amplifier settings and mute channels at the push of a button
- Ultra-Quiet operation: 51 dBA maximum fan noise
- Standard 19″ 2 RU chassis
- International power supply
Remarkable DSP
High Power Density
JBL Speaker Tunings
Remote Monitoring and Management
Audio Networking
Specifications
| Number of Channels | 4 |
| Power Rating | 8 Ohms: 350 W Peak per Channel (1 kHz, 0.5% THD) 4 Ohms: 700 W Peak per Channel (1 kHz, 0.5% THD) 2 Ohms: 1050 W Peak per Channel (1 kHz, 0.5% THD) 8 Ohms: 1300 W Peak Bridged (1 kHz, 0.5% THD) 4 Ohms: 2200 W Peak Bridged (1 kHz, 0.5% THD) |
| Load Impedance / Voltage | 2 / 4 / 8 Ohms per Channel |
| Frequency Response | 20 Hz to 20 kHz ±0.5 dB (4 Ohms) |
| Damping Factor | > 1000 |
| Input Impedance | 70 Kilohms (Balanced) 35 Kilohms (Unbalanced) |
| Max Gain | 32.5 dB |
| Max Input Level | 21 dBu |
| SNR | > 100 dB |
| THD | 0.35% (20 Hz to 20 kHz, at Rated Power) |
| Intermodulation Distortion | ≤ 0.35% |
| Crosstalk | > 80 dB (20 Hz to 1 kHz, Below Rated Power) |
| CMRR | > 70 dB |
| Sample Rate | Up to 96 kHz |
| DSP | 32-Bit Floating Point DSP at 96 kHz |
| Audio Delay | Adjustable Up to 1000 ms per Channel |
| Crossover | Yes |
| EQ | 8-Band Parametric EQ per Channel |
| Limiting | Yes |
| I/O | 2 x Block 6-Pin Balanced Line Input 2 x Barrier Strip 4-Pin Speaker Output 1 x Block 8-Pin GPIO Input/Output |
| Digital I/O | 2 x RJ45 Dante Input/Output (Control, I/O, Network) 1 x RJ45 Ethernet Input/Output (Control, Network) |
| AC Input Power | 100 to 220 VAC, 50 / 60 Hz |
| AC Power Connector | 1 x IEC |
| Display & Indicators | 1 x Blue LCD (Backlit) |
| Rackmount Size | 2 RU |
| Cooling | Fan (Variable Speed) |
| Dimensions | 19.0 x 3.5 x 17.2″ / 482.6 x 88.9 x 436.9Â mm |
| Weight | 23.1Â lb / 10.5Â kg |
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