JDS Labs SUBJECTIVE3 Operating Instructions Manual

OPERA TING INS T RUCTIO NS | EQUALIZER

SUBJECTIVE3

SUPPOR T

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SECTION 1

Q U ICK SET U P

S T E P 0 1

Connect AC power adapter to
15VAC power jack, then
connect to wall outlet.

S T E P 0 3

Connect a cable from the RCA output
jacks to the input of your amplier.

S T E P 0 5

S T E P 0 2

Connect a cable from your audio
source or DAC to the RCA input jacks.

S T E P 0 4

Slide the front toggle switch to EQ mode
to activate the equalizer, or set to BYPASS
to send the original audio signal to your
amp.

Adjust equalizer knobs and enjoy!

INPUT SENSITIVITY

The Subjective3 equalizer accepts 2.0VRMS input signals. It’s best to connect the equalizer
between your DAC and amplier.

See Listnening Tips on page 3.

JDS LABS. COM 2

LISTENING TIPS

Listen safely to conserve your hearing:

www.hearingloss.org

To ensure an optimal noise oor,
always position audio equipment as far
away as possible from wireless devices.

OPTIMAL EQUALIZATION

You may choose to apply additive equalization (knobs above center), or subtractive
equalization (knobs below center). While Subjective3 performs with low noise, subtractive
equalization is generally preferred.

In order to utilize the full range of equalizer controls, your amplier must be able to
accommodate input levels +15dB higher than that of your source. For use with an Objective2
amplier and 2VRMS DAC, set gain to 1.0x gain if you choose to apply additive equalization.

If you need to use a stronger DAC or higher amplier gain, simply use subtractive equalization.
Again, this means only setting knobs below their center point.

I NCLUDED I TEMS

- Subjective3 Equalizer

- 15VAC Adapter

JDS LABS. COM 3

T R OUB L E S H O O T I N G

Subjective3 produces no sound, but power LED is on

Cause: Incorrect power adapter.
Solution: Please connect supplied 15VAC transformer.

Distorted Output

Cause: Input signal is > 2.1VRMS, or amplier is unable to accommodate high signal level.
Solution: Please see `Optimal Equalization` tips on previous page.

POW ER ADAPTE R S

ATTENTION: Incorrect power adapters can result in capacitor
explosion hazards and device damage. Only use the power
adapter included with your equalizer.

Type: AC-to-AC Transformer Output Voltage: 15VAC

Current: Minimum 500mA Connector: 2.1x5.5mm (ID x OD)

J D S LAB S . C O M 4

Application for Council Directives 2004/108/EC, 2006/95/EC, 2002/95/
EC.Conformity declared for EN55022:2011, EN611000-3-2, EN61000-3­3, EN55024-2

This equipment has been tested and found to
comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules.

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