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JBL Synthesis® SDA-7120 7 Channel Power Amplifier

Model #: JBLSDA7120AM
959009
JBL Synthesis
At a Glance

The SDA-7120 is a high-performance 7-channel Class G power amplifier designed to deliver audiophile performance and incredibly powerful dynamics. Each channel is rated to deliver 100W into 8 ohms and 140W into 4 ohms with all channels driven.

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Get to know this product.

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

The SDA-7120 is a high-performance 7-channel Class G power amplifier designed to deliver audiophile performance and incredibly powerful dynamics. Each channel is rated to deliver 100W into 8 ohms and 140W into 4 ohms with all channels driven. With only two channels driven, 225W of power is on tap with a 4 ohm load. This combination of high power and low distortion make this the ideal solution for LCR and surround loudspeakers in JBL Synthesis immersive audio systems. DANTE digital audio networking allows connection of the SDA-7120 to a compatible DANTE-enabled surround processor via just a single Ethernet cable and full external control allows for complete and easy system integration.

Powerful and Dynamic

Class G amplification offers the best characteristics Class A and Class A/B designs. Conventional Class A designs do not suffer from crossover distortion and is exceptionally transparent offering a high level of realism. However, a solely Class A design is extremely inefficient as it will always be drawing full power even with no signal to amplify, for this reason, Class A amplifiers usually offer lower power output. Class AB design is much more common and far more efficient than pure Class A, but it suffers from crossover distortion at low levels which clouds spatial details and transparency.

Class G offers greater efficiency and transparency, with less wasted heat energy than class A. Like a hybrid car engine, Class G implements multiple power supplies rather than just a single supply. The first power supply is of lower power and within this region, the SDA-7120 runs in pure Class A, which has no crossover distortion. If a dynamic signal is received that goes beyond the capability of this first power supply, the secondary supply is gradually brought in up to full rated power output as required. This gives a very efficient design as additional power is only used when required. Modern high-speed silicon allows us the make this switch at speeds well beyond the audio bandwidth.

Flexible

The SDA-7120 features Dante™ audio networking so you can connect with the JBL Synthesis SDR-35 AVR and SDP-55 immersive surround sound processor as well as other Dante-enabled products over Ethernet-based networks via a Cat5e or Cat 6 cable. Dante audio networking uses a standard IP network to transmit high-quality, uncompressed multi-channel audio with near-zero latency. It's the most flexible, reliable, and easy-to-manage audio networking solution available, and provides the lowest cost of ownership by dramatically reducing cabling and labor costs as well as eliminating issues with interference, crosstalk and signal degradation associated with analog cable. The SDA-7120 is capable of receiving high-resolution audio via 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 stored safely in the Dante devices themselves, so they are automatically restored if a device is power-cycled.

Flexibility

The SDA-7120 features Dante™ audio networking so you can connect with the JBL Synthesis SDR-35 AVR and SDP-55 immersive surround sound processor as well as other Dante-enabled products over Ethernet-based networks via a Cat5e or Cat 6 cable. Dante audio networking uses a standard IP network to transmit high-quality, uncompressed multi-channel audio with near-zero latency. It's the most flexible, reliable, and easy-to-manage audio networking solution available, and provides the lowest cost of ownership by dramatically reducing cabling and labor costs as well as eliminating issues with interference, crosstalk and signal degradation associated with analog cable. The SDA-7120 is capable of receiving high-resolution audio via 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 stored safely in the Dante devices themselves, so they are automatically restored if a device is power-cycled.

Additional Features

  • Dynamic Class G amplification
  • Dante™ audio networking
  • 100 watts @8 Ohms with seven channels driven
  • Balanced and single ended inputs
  • Trigger in and out
  • Ethernet, RS232 control
Specifications

Misc. Specs

Depth (in.)16.73
Height (in.)6.97
Width (in.)17.05
Channels7
Frequency Response20 - 20kHz +/-0.05dB
Amplifier ClassClass G
Weight Kilogram19.7
Color Finish NameBlack
Product Weight39.7
ColorBlack
Product Weight (kg)18
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