JBL SDEC-4000, SDEC-3000 Advanced Features, Cinema/Music Subwoofer Output, Multiple EQ Presets

13 Advanced Features

13.1 Cinema/Music Subwoofer Output

The SDEC has the ability to change the subwoofer output gain to accommodate both the standard cinema curve and a more linear music output level. This feature has been built into the SDEC as a simple alternative to the multiple EQ presets that would otherwise be necessary as described in Section 13.2 Multiple EQ Presets. Changing the output level of the subwoofer using this preset will not have an effect on your standard calibration. The default setting is Cinema with no change to the output level. The preset can be triggered in three ways: (1) via RS232; (2) via Ethernet; (3) via the contact closure trigger on the rear panel.

Note: You must have SDEC3000/SDEC4000 version 1.10 or higher for this feature.

13.1.1RS232 Settings

Cable Type:	Null Modem
DB9 Female – PC		DB9 Female – SDEC
TX PIN 3		RX PIN 3
RX PIN 2		TX PIN 2
GROUND PIN 5		GROUND PIN 5
Serial Port Settings:	8 Bit
	No Parity
	115200 bps
	No Flow Control

Command acknowledgment will be sent within 1 second from when the command was sent. If no ACK is received then the command should be resent.

13.1.2Ethernet Settings

Cable Type:	Standard Ethernet network
Ethernet Port Settings:	TCP PORT 1023

13.1.3Command Strings

The command strings are the same for both RS232 and Ethernet protocols.

Model	Command String
	Cinema Level – 0dB Default level
	02, 88, 50, 79, 1B, 83, 00, 01, 14, 00, 00, 00,
SDEC-3000	00, 00, 00, B7, 03
	Music Level – 2.5dB
	02, 88, 50, 79, 1B, 83, 00, 01, 14, 00, 00, FF,
	FF, 9E, 58, 71, 03
	Cinema Level – 0dB Default level
	02, 88, 13, 86, 1B, 83, 01, 01, 30, 00, 00, 00,
SDEC-4000	00, 00, 00, 2E, 03
	Music Level – 2.5dB
	02, 88, 13, 86, 1B, 83, 01, 01, 30, 00, 00, FF,
	FF, 9E, 58, E8, 03

13.1.4Contact Closure Trigger

Using the rear panel connections labeled “Control Inputs” connect a contact closure between input (top row) #4 and the connection labeled “C” (for common). When the contact is

normally open the default setting of 0dB will be active. When the contact is closed the -2.5dB setting will be triggered.

13.2 Multiple EQ Presets

Up to two EQ presets can be stored and recalled. All channels can be changed and are saved and recalled together. Due to the advanced nature of this process it should only be done under the supervision of JBL Synthesis factory personnel.

13.2.1Saving Presets

Please contact JBL Synthesis Technical support for this feature. It requires advanced training and the use of London Architect. It cannot be used with the Java Remote. As this feature is considered an advanced feature there is the possibility of loosing your work if you do not have the proper training. Due to this possibility JBL Synthesis is not releasing the information except to qualified personnel who have undergone advanced training with JBL Synthesis personnel.

13.2.2Recalling Presets

Presets can be recalled using several methods. The presets can be triggered via RS232, Ethernet or while online with London Architect. Due to the danger of accidentally erasing or deleting your active EQ settings JBL Synthesis is not releasing the information except to qualified personnel who have undergone advanced training with JBL Synthesis personnel.

13.3 Parameter Synchronization

Note: This procedure can only be done if changes are made to the Design File preferences. This will allow you to take saved settings and place them into a new unit. The only reason to do this is if the old unit is defective and needs to be replaced. Do not do this unless directed by JBL Synthesis Personnel.

If both the hardware and the software have the same version of the control and design configuration then the software will check to see of the settings and parameters match. If they do not match you will be given the option to synchronize the settings. You will be prompted to tell the software whether you want to use the settings from your computer, or load the settings from the hardware. If you are starting a new calibration or want to replace what is set in the EQ with your settings from the computer, select update from software. If you have already begun the process and want to continue your work, or use the settings in the EQ as a starting point, then select update from hardware. Select the green arrow to send your values from your saved file or select the red arrow to receive the values from the hardware. The unit name will highlight in green when done. Click OK to continue.

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SDEC -X000 DACS Calibration Manual v1.0.doc