JBL Synthesis SDA-7120

JBL SDA-7120

The JBL Synthesis SDA-7120 delivers seven channels of dynamic Class G amplification with modern networking capabilities, audiophile sound and exceptional flexibility.

The JBL Synthesis SDA-7120 delivers seven channels of dynamic Class G amplification with modern networking capabilities, audiophile sound and exceptional flexibility. With 100 watts per channel (all channels powered), 0.002% harmonic distortion balanced and single-ended inputs, RS232 and IP control as well as Dante™ audio networking, the SDA-7120 is an excellent choice for a wide range of applications.

Powerful and dynamic

Class G amplification offers the best features of Class A and Class A/B designs. Conventional Class A designs do not suffer from crossover distortion and are exceptionally transparent, offering a high level of realism. However, a class A design is extremely inefficient because it always draws full power even when there is no signal to amplify. Therefore, class A amplifiers usually offer lower output power. A class AB design is much more common and much more efficient than a pure class A, but it suffers from crossover distortion at low levels, obscuring spatial detail and transparency.

Class G offers greater efficiency and transparency, with less wasted heat energy than Class A. Like a hybrid car engine, Class G operates with multiple power supplies instead of just a single supply. The first power supply is of lower power, and within this area the SDA-7120 operates in pure Class A, which has no crossover distortion. When a dynamic signal is received that exceeds the power of this first power supply, the secondary power supply is gradually boosted to full rated power as needed. This results in a very efficient design because additional power is used only when needed. Modern high-speed silicon enables this switching at speeds that far exceed the audio bandwidth.

Flexible

The SDA-7120 features Dante™ audio networking so you can connect to the JBL Synthesis SDR-35 AVR and SDP-55 immersive surround sound processor and other Dante-enabled products over Ethernet-based networks via Cat5e or Cat 6 cable. Dante audio networking uses a standard IP network to transmit high-quality uncompressed multichannel audio with virtually zero latency. It is the most flexible, reliable and easy-to-manage audio networking solution available, offering the lowest cost of ownership by dramatically reducing cabling and labor costs and eliminating problems of interference, crosstalk and signal degradation associated with analog cable. The SDA-7120 is capable of receiving high-resolution audio through Dante. Signal routing and system configuration with Dante is fast, simple, and incredibly flexible. Once the network is configured, signal routing and other system settings are securely stored in the Dante devices themselves, so they are automatically restored if a device is turned off.

• Dynamic class G amplification
• Dante™ audio network
• 100 watts @8 Ohms with seven channels driven
• Balanced and single-ended inputs
• Trigger in and out
• Ethernet, RS232 operation