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JBL DA850 DA1650 Owners Manual | rev1.2 Draft20231009 

Pg 12 of 16

 

©2023 Harman International | Features, Specifications, and Appearance subject to change without notice. 

 

Output Level controls 

ADJUSTING OUTPUT LEVELS AND CLIP INDICATION 

Output levels are controlled per channel pair using the attenuation knobs located next to the Zone inputs on 
the rear panel. The output level controls function as attenuators for each zone and can be used to level-
match zones in an installation. When turned fully clockwise, the output level is at maximum. The CLIP 
indicator LED is located below the Level control. If clipping is present while playing an input source, the 
CLIP LED will flash red. To operate the output level control, use a small, flat-tipped screwdriver to rotate the 
controls knob so that the desired level is achieved and without clipping. 

 

 

 

 

LED Status 

POWER LED 

LED 

Status 

Dark/Unlit Off 

White On 

Dim Blue 

Standby 

Dim Blue (slowly breathing) 

Standby in Auto Power Mode 

Red PSU 

Fault 

 

ZONE STATUS LED 

LED 

Status

 

Dark/Unlit 

Off/Signal not present 

White On/signal 

preset 

Yellow Clipping 

Red Zone 

Fault 

 

Summary of Contents for DA850

Page 1: ...Owners Manual Rev 1 2 Draft20231009 2023 Harman International Features Specifications and Appearance subject to change without notice DA850 DA1650 Distribution Amplifiers...

Page 2: ...rview 4 Rear Panel Overview 5 Installation 6 Rack Mounting 6 Surface Mounting 7 Hardware Setup 8 Connecting Audio Inputs 8 Wiring Output Connnectors 8 Connecting The AC Power Cord 10 Setting Power Mod...

Page 3: ...d to the industry s highest quality standards and offer system integrators with the core features and fundamental connectivity for home audio distribution Please take the time to study the owner s man...

Page 4: ...a fault the LED will blink RED indicating the presence of a short or some other problem related to that channel pair 2 STANDBY BUTTON Activates and deactivates standby mode when the amplifier is conn...

Page 5: ...nal DA series amplifiers or other components that need to mimic the amplifier s power state 6 GLOBAL OUT Provides a line level RCA connector loop pass thru output for connecting multiple DA amplifiers...

Page 6: ...t included Installing a DA series amplifier in a rack 1 Attach the rack ear brackets to the sides of the amplifier using the provided machine screw fasteners into the threaded holes 1 0 1Nm recommende...

Page 7: ...hout notice SURFACE MOUNTING You can also place a single amp on a solid stable surface utilizing the provided feet and fasteners Once positioned ensure the sides of the amplifier are well ventilated a...

Page 8: ...rol Note that for BRIDGE MONO operation a stereo input will be appropriately summed to mono and outputs can be used in either Bridge outputs or single channel pairs WIRING OUTPUT CONNNECTORS Before ma...

Page 9: ...of the phoenix connector tightening the screw terminals on top to secure the termination Repeat this procedure for each speaker Do not connect the L and R negative terminals together Doing so will re...

Page 10: ...indicators light RED reduce the source level until the Clip LEDs no longer light IMPORTANT Always turn off the amplifier by using the rear AC mains rocker switch and disconnect the power cord before...

Page 11: ...de the front panel standby button operation To install a trigger cable Power the controlling source and DA amplifier off Connect the trigger cable to the controlling source and the DA amplifier After...

Page 12: ...atch zones in an installation When turned fully clockwise the output level is at maximum The CLIP indicator LED is located below the Level control If clipping is present while playing an input source...

Page 13: ...2 channels driven 0 5 THD max Rated Power 8 50W Rated Power 4 110W Rated Power 8 Bridged one zone driven 185W Performance Frequency Response 20Hz 20kHz 0 5dB at 1 8th power all loads THD N max at rat...

Page 14: ...riven 0 5 THD max Rated Power 8 50W Rated Power 4 110W Rated Power 8 Bridged one zone driven 185W Performance Frequency Response 20Hz 20kHz 0 5dB at 1 8th power all loads THD N max at rated power 20 2...

Page 15: ...low frequency noise is one of the most common problems within audio video systems This problem even when the volume is at a low level is usually caused by a common problem known as a ground loop A gro...

Page 16: ...2 London Road Apsley Hemel Hempstead Hertfordshire HP3 9TD United Kingdom 2023 Harman International Industries Incorporated All Rights Reserved JBL is a trademark of Harman International Industries I...

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