JDS Labs Objective2+ODAC Operating Instructions

Quick Setup
1. Connect AC power adapter to the power jack (14-20VAC).
2. Connect USB cable between your computer and the USB jack on back side of Objective2+ODAC.
3. Connect headphones to the front Headphone output jack.
4. Press the Power button at left to turn on the amplifier. Keep volume low until music is playing.
5. Slowly raise Objective2's volume knob to an appropriate listening level. See tips below.
Connectivity of Objective2+ODAC
Connection at Front, Right 3.5mm Jack
No connection
1
External Analog Source
External Analog Amplifier
Connectivity of Custom Objective2+ODAC with Dedicated Line-Output
Connection at Front, Right 3.5mm Jack
No connection
1
External Analog Source
Connectivity of Custom Objective2+ODAC with Switched RCA Amplified Output
Same input behavior as above, "Dedicated Line-Output" table. Rear outputs are amplified and active only
when headphones are unplugged. Use 1.0x gain when driving powered speakers!
Gain
Use the right pushbutton to toggle between low or high gain amplification. Always use the lowest gain
necessary. Switch to high gain when you're unable to achieve desired listening volume at low gain.
Thank you for purchasing Objective2+ODAC. If you have additional questions or comments, feel free to write
to: contact@jdslabs.com
1
Analog Source refers to any device which produces usable audio through an output jack. Examples include the headphone jacks of iPods, laptops, cell phones, etc.
2
Analog Amplifier refers to any device which receives analog audio through an input jack. Examples include speaker or stereo 3.5mm and RCA inputs, etc.
3
ODAC achieves published performance when used with a single device. For best results driving external speakers or amplification systems, mechanically relieve
ODAC from the Objective2 amplifier by connecting any cable to Objective+ODAC's front 3.5mm input jack (requires Custom, Dedicated RCA or 3.5mm DAC Line-
output jack).
JDS Labs Model # OBJECTIVE2+ODAC | Last updated June 4, 2015
connected
2
connected
or any cable connected
Your OBJECTIVE2+ODAC may differ from the customized model shown above.
Operating Instructions
DAC Line Output (Front 3.5mm)
--
--
3
Accessible , not recommended
DAC Line Output (Rear)
--
3
Accessible via External Amplifier
Objective2+ODAC
Headphone Output Jack
Plays ODAC, amplified
Plays external source, amplified
Plays ODAC, amplified
Headphone Output Jack
Plays ODAC, amplified
Plays external source, amplified
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