harman kardon SB30 Soundbar - Active Soundbar with wireless subwoofer - Schematic

harman/kardon SB 30/230 Multichannel active soundbar speaker system – Circuit Diagram

SB 30 CNTR Soundbar

Amplifier power: 40 watts x 4; 10 watts x 7

High-frequency transducers: Seven x 1" (25mm) domes

Low-frequency transducers: Six x 2" (51mm) cones

SB 30 Subwoofer

Amplifier power: 100 watts

Frequency response: 40Hz – 160Hz

Low-frequency transducer: 8" (200mm) down-firing cone.

A video-shielded soundbar speaker (the SB 30 CNTR) that features 13 speaker elements, 11 amplifier channels and a triple-core digital signal processor.

An 8-inch (200mm), 100-watt wireless powered subwoofer (the SB 30 SUB).
An IR remote control.
Wall-mount brackets for the soundbar.
An optical digital audio cable for connecting the system directly to your cable/ satellite tuner or disc player.
A 6-1/2-foot (2m) stereo audio cable for connecting the system directly to your TV’s audio output.
A 3-foot (1.8m) AC power cord for the SB 30 CNTR soundbar.

Circuit Diagram (Schematic) [Click on the schematics to zoom in]

The SB 30 CNTR soundbar contains six 2-inch woofers and seven 1-inch tweeters, powered by four 40-watt amplifiers and seven 10-watt amplifiers. It features a powerful triple-core DSP (digital signal processor) with two HARMAN-exclusive surround modes (Virtual and HARMAN Wave – patent pending) that utilize different combinations of the soundbar’s 13 transducers and 11 amplifier channels to create an astonishingly realistic surround-sound experience in any size room and for listeners at any position in the room, without needing any extra speakers or wires.

You can set the soundbar on a table in front of your TV, or, if you have a wall-mounted flat-panel TV, you can use the supplied brackets to mount the soundbar on the wall along with your flat-panel TV.

The SB 30 SUB subwoofer receives its signal from the SB 30 CNTR soundbar via wireless technology, so you can place it anywhere in your room without having to run any wires between it and the soundbar. Its 8-inch (200mm) woofer and built-in 100-watt amplifier deliver the impact and excitement from your favorite movies and video games. Other conveniences include a volume control, a phase switch for fine-tuning bass performance to suit your listening environment, and an efficient switching system that senses the presence of an audio signal and automatically switches the subwoofer on.

Sidney Harman and Bernard Kardon invented the high-fidelity receiver more than 50 years ago. With state-of-the-art features and time-honored circuit designs, the SB 30 system will turn your flat-panel TV into a fun and exciting home theater.

Wireless Code Switches

In the unlikely event that you encounter interference when operating the system, or if you have more than one SB 30 system in operation, you may change the channel at which the wireless system operates. There are four-position Wireless Code switches on both the soundbar and subwoofer. To change the wireless channel, set each of the switches to one of the other three positions. 

IMPORTANT: The switches on the soundbar and the subwoofer must be set to the same position for the wireless system to work.

The subwoofer will automatically turn on when it receives an audio signal from the soundbar, and it will return to the Standby mode when it has received no audio signal for 15 minutes. The subwoofer’s Power LED will turn blue when the subwoofer is on and will turn amber when the subwoofer is in Standby.