KALI AUDIO Project Watts WS-6.2 User manual

Kali Audio WS-6.2 Users’ Guide 1
WS-6.2
Studio Subwoofer
User’s Guide
Project Watts

Kali Audio WS-6.2 Users’ Guide 2
Table of Contents
IMPORTANT SAFETY INFORMATION………………….................…….......…………….3
Informations de Sécurité Importantes..............................................................5
ABOUT YOUR SPEAKERS.…………..……….......................................………………….7
FULL SPECIFICATIONS…………………………….…...……......................…………………9
INPUTS AND CONTROLS………………………....……...………....................……………10
SUBWOOFER PLACEMENT.............................................................................12
CONFIGURING YOUR SYSTEM.........................................................................14
CLIMATE CONSIDERATIONS...........................................................................17
FIRST TIME SETUP…………………………………………..........................…...…………...17
TROUBLESHOOTING………………………………………......................…...……………...18
LIMITED WARRANTY…………………………………………………..…........................……19

Kali Audio WS-6.2 Users’ Guide 3
Important Safety Information
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Power the product down, and unplug it from power before cleaning.
7. Clean only with a dry cloth.
8. Do not block any ventilation openings.
9. Keep ventilation opening free of dust or other matter.
10. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.
11. No naked flame sources (such as lighted candles,) should be placed on the product.
12. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has
two blades, with one blade wider than the other. A grounding-type plug has two blades and a third
grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug
does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
13. Protect the power cord from being walked on or pinched, particularly at plugs, receptacles, and at
the point where they exit the apparatus.
14. Use only attachments and/or accessories specified by the manufacturer.
15. Use only with a cart, stand, tripod, plate, bracket, or table specified by the manufacturer. When a
cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
16. Unplug this apparatus during lightning storms or when unused for
long periods of time.
17. Refer all servicing to qualified service personnel. Servicing is required when:
A. The apparatus is damaged in any way
B. The power supply cord or plug is damaged
C. Liquid or other objects have fallen into the product
D. The product has been exposed to rain or moisture
E. The product does not operate normally
F. The product has been dropped
18. This apparatus shall not be exposed to dripping or splashing.
19. No object filled with liquids, such as a vase or a glass, should be placed on the apparatus.
20. This apparatus is to be used in a moderate climate. Do not expose to extremely high or low tem-
peratures.
21. High sound pressure in excess of 85 dB can cause hearing damage and/or loss. Do not expose
yourself to high sound pressure levels.
22. The power cord must be connected to a Mains socket/outlet with earthing connection.
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDI-
TIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE AND (2) THIS DEVICE MUST ACCEPT ANY INTER-
FERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION.

Kali Audio WS-6.2 Users’ Guide 4
Important Safety Information
The lightning bolt with arrowhead symbol within an equilateral triangle is intend-
ed to alert the user to the presence of uninsulated “dangerous voltage” within
the product’s enclosure that may be of sufficient magnitude to constitute a risk of
electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user of
the presence of important operation and maintaining (servicing) instructions in the
literature accompanying the appliance.

Kali Audio WS-6.2 Users’ Guide 5
Informations de Sécurité Importantes
1. Lisez ces instructions.
2. Conservez ces instructions.
3. Tenez compte de tous les avertissements.
4. Suivez toutes les instructions.
5. N’utilisez pas cet appareil à proximité de l’eau.
6. Mettez le produit hors tension et débranchez-le de l’alimentation avant de le nettoyer.
7. Nettoyez uniquement avec un chiffon sec.
8. Ne bloquez pas les ouvertures de ventilation.
9. Gardez l’ouverture de ventilation exempte de poussière ou d’autres matières.
10. N’installez pas à proximité de sources de chaleur telles que radiateurs, bouches de chaleur, cui-
sinières ou autres
appareils (y compris les amplificateurs) qui produisent de la chaleur.
11. Aucune source de flamme nue (comme des bougies allumées) ne doit être placée sur le produit.
12. Ne supprimez pas la fonction de sécurité de la fiche polarisée ou de mise à la terre. Un polarisé
la fiche a deux lames, avec une lame plus large que l’autre. Une fiche de mise à la terre a
deux lames et une troisième broche de mise à la terre. La lame large ou la troisième broche sont
fournies
pour votre sécurité. Si la fiche fournie ne rentre pas dans votre prise, consultez un électricien pour
remplacement de la prise obsolète.
13. Protégez le cordon d’alimentation contre tout piétinement ou pincement, en particulier au niveau
des fiches, des prises et à l’endroit où ils sortent de l’appareil.
14. N’utilisez que des accessoires et / ou des accessoires spécifiés par le fabricant.
15. Utilisez uniquement avec un chariot, un support, un trépied, une plaque, un support ou une table
spécifiés par le fabricant. Lorsqu’un chariot est utilisé, soyez prudent lorsque vous déplacez la com-
binaison chariot / appareil vers éviter les blessures par renversement.
16. Débranchez cet appareil pendant les orages ou lorsqu’il n’est pas utilisé pendant de longues péri-
odes.

Kali Audio WS-6.2 Users’ Guide 6
Informations de Sécurité Importantes
17. Confiez toute réparation à un personnel qualifié. Un entretien est nécessaire lorsque:
A. L'appareil est endommagé de quelque manière que ce soit
B. Le cordon d'alimentation ou la prise est endommagé
C.Le liquide ou d'autres objets sont tombés dans le produit
D. Le produit a été exposé à la pluie ou à l'humidité
E. Le produit ne fonctionne pas normalement
F. Le produit est tombé
18. Cet appareil ne doit pas être exposé aux gouttes ou aux éclaboussures.
19. Aucun objet rempli de liquide, tel qu'un vase ou un verre, ne doit être placé sur l'appareil.
20. Cet appareil doit être utilisé dans un climat tempéré. Ne pas exposer à des ou basses
températures.
21. Une pression acoustique élevée supérieure à 85 dB peut entraîner des dommages et / ou
une perte d'audition. Faire ne vous exposez pas à des niveaux de pression acoustique élevés.
L’éclair avec le symbole de la tête de flèche dans un triangle équilatéral
est destiné à alerter l’utilisateur de la présence de “dangereux tension”
dans le boîtier du produit qui peut être d’une amplitude suffisante pour
constituer un risque de choc électrique pour les personnes.
Le point d’exclamation dans un triangle équilatéral est destiné à alerter
l’utilisateur de la présence d’instructions importantes de fonctionnement
et de maintenance (entretien) dans la documentation accompagnant l’ap-
pareil.

Kali Audio WS-6.2 Users’ Guide 7
About Your Subwoofer
Congratulations on your Kali Audio WS-6.2 Studio Subwoofer. This subwoofer is a perfect companion
to stereo pairs of speakers in smaller studios. Occupying less than half the volume of similarly per-
forming subwoofers, the WS-6.2 fits comfortably under any desk and provides accurate, powerful,
authoritative low end.
Where does “WS” come from?
The official name of Kali’s subwoofer product line is “Project Watts.” Kali names all of our product
lines after towns in California. Watts is a neighborhood in Los Angeles that features prominently in
the history of West Coast Hip-Hop. The name is also an allusion to the high power of our subwoofers.
Features
Dual 6.5-Inch Woofers
“6.2” in the WS-6.2’s name alludes to the fact that this subwoofer uses two horizontally opposed
6.5-Inch woofers as its driver configuration. Not only does this allow for high output in a small form
factor, it also eliminates net vibration so the subwoofer will not scoot along the floor at high levels.
We designed these woofers for high excursion, with 15mm travel from peak-to-peak.
Output
The WS-6.2 is designed to provide reference level output at a distance of 4 meters. This makes it an
ideal subwoofer for use with a stereo pair of speakers in most small studios. Additionally, it can be
used as the LFE channel in small multichannel setups.
The WS-6.2 will be an excellent companion to both Kali Audio speakers, and other speakers and stu-
dio monitors that are designed for use in small studios and the home.
Kali Audio uses Dolby’s music studio reference level spec, which is 85 dB continuous output at the
listening position, with 20 dB dynamic headroom, or 105 dB peaks at the listening position. For help
configuring a system in Dolby’s room design tool (the DARDT,) using the WS-6.2, contact Kali’s cus-
tomer support.
Low Noise Port Tube
Similar to the LP-Series Studio Monitors, the port tube on the WS-6.2 was designed to deliver
all the benefits of a front-firing port tube, without any drawbacks associated with noise. This al-
lows the WS-6.2 to have even lower bass extension, while delivering clean, tight, punchy bass.

Kali Audio WS-6.2 Users’ Guide 8
About Your Subwoofer
Features
Footswitch Bypass
Turn off the subwoofer and listen to your mix through your full-range speakers so you can hear how it
will translate to systems that don’t have a sub. Footswitch sold separately; most music retailers sell a
variety of 1/4-inch footswitches that will work. Contact Kali Customer Support if you need assitance in
selecting a suitable footswitch.
Limiter Circuit
The WS-6.2 is equipped with a limiter circuit that will protect the speaker from unsafe operating lev-
els. In other words, you don’t need to worry about blowing up the subwoofer by playing it too loud.
Unsafe playback levels will be plainly audible as distortion, indicating that the speaker is receiving too
much input signal. If this is the case, it is recommended to reduce the volume of the playback mate-
rial. In some cases, the subwoofer will shut itself down to protect itself from harm. See page 18 for
what to do if this happens to you.
Small Form Factor
The WS-6.2 is less than half the volume of other subwoofers with similar output and bandwidth specs.
This allows a variety of placement options that aren’t possible with a larger sub.

Kali Audio WS-6.2 Users’ Guide 9
Full Specifications
Self-Powered: Yes
Amplifier Class: D
Continuous Power: 400W
Peak Power: 1000W
Driver Complement 2 x 6.5-Inch High Excursion Woofers
Frequency Response: (-10dB) 27 Hz - 200 Hz
Frequency Range: (+/-3dB) 31.5 Hz - 180 Hz
Recommended Listening Distance: Up to 4 meters
Max SPL: (Peak at 1M) 120 dB
System THD: (90dB SPL at 1M) <2%
Unbalanced Inputs: Stereo RCA (-10dBV)
Balanced Inputs: Stereo XLR/TRS Combi Jack (+4dBu)
Balanced Outputs: XLR
Other Inputs/Outputs: 1/4-Inch Footswitch for Sub Bypass
Enclosure: Front Ported
Height 14.5 Inches (36.8 cm)
Width: 12.2 Inches (40 cm)
Depth: 11 Inches (27.9 cm)
Weight: 31 lbs (14 kg)

Kali Audio WS-6.2 Users’ Guide 10
Inputs and Controls
Volume Control
The volume control allows users to adjust the output of the speaker from -∞ (Muted) to +6
dB. There is a center detent at the +0 dB setting.
If you have your main speakers running off the outputs of the WS-6.2, start with the volume
all the way down, and slowly bring it up.
More detailed information for level-matching your sub to your mains can be found on page
13.
Crossover Selector
The crossover selector allows you to switch between an 80 Hz crossover, LFE Mode, and Ex-
ternal mode. A detailed explanation about when to use which setting can be found on pages
14-16.

Kali Audio WS-6.2 Users’ Guide 11
Inputs and Controls
Polarity Selector
Depending on the shape and size of your room, the position of the subwoofer relative to the
monitors, and your listening position relative to all of those factors, the subwoofer may sum
better with the monitors with the polarity reversed.
To determine which setting is more appropriate, simply try both settings, and use the one
that sounds better. It is also possible to use free software such as Room EQ Wizard (REW)
to test the polarity of your subwoofer. Instructions for doing so are readily available with a
quick internet search.
XLR/TRS Combi Jack Inputs
The XLR/TRS input is for use with professional audio devices like mixers, interfaces, and
controllers. Depending on your device, it will either use XLR or ¼” TRS outputs, either of
which can be used with this input.
Footswitch Input
The footswitch input allows for a footswitch to be connected to the subwoofer to toggle be-
tween normal operation and bypassed operation.
When the subwoofer is bypassed, the subwoofer will no longer play, and the high-pass filter
on the outputs will be disabled. This is useful for monitoring with or without a subwoofer
depending on your current use case, or even just to check mixes back and forth.
Footswitches are readily available from most music retailers. Look for a 1/4-Inch footswitch
with a momentary or toggle switch, like what you might use with a guitar amp.
RCA Inputs
The RCA input is for use with consumer devices like record players, laptops, smart
phones, and A/V receivers. Commonly, the playback device will either have an RCA or a
3.5mm (Aux) output. Cables from either of these outputs to RCA are easy to find.
XLR Outputs
Use the XLR Outputs to pass signal through the subwoofer and to a stereo pair of speakers.
The XLR Outputs are only active when the 80 Hz crossover is engaged. Material below 80
Hz will be played by the subwoofer, and material above 80 Hz will be sent to the full range
speakers.
On/Off Switch
Power the speaker on and off. Be sure to power the speaker off when connecting or dis-
connecting the power cable, during lightning storms, or during extended periods of disuse.
Turning the power on and off externally, for instance via a wifi power switch, will not harm
the device.
Power Input
Plug the provided power cord into the power input.

Kali Audio WS-6.2 Users’ Guide 12
Subwoofer Placement
The low frequencies that subwoofers reproduce make them sensitive to room placement. Some trial
and error is usually required to get the subwoofer in the right place in the room. Go into this process
with an open mind, and you’ll be able to find a workable place to put your sub! Below are some sug-
gestions to help you get started.
All of these suggestions are for stereo use in a studio environment. Some other suggestions for using
the WS-6.2 in a 5.1 system, or for using multiple WS-6.2s, can be found on pages 14 and 15.
Go through these different arrangements until you find one that you like. Remember that the WS-6.2
features a polarity switch; don’t forget to try switching the polarity if you’re having trouble finding a
position that works for you.
Start with the subwoofer in line with the main speak-
ers, about halfway between them. If you’re working
in a very small space, you might need to move the
sub over to make room for your feet. Moving it a foot
or so to either side should not be a problem.
The arrangements that follow will assume that you
have your subwoofer in this position.
If room allows, positon the subwoofer so that it is 1/4 of the way into the room, with your
listening position an additional 1/8 of the way into the room from there.
In other words, if your room is 12’ long, the subwoofer should be 3’ into the room, with your
listening position at 4.5 feet. In this arrangement, the subwoofer and the speakers should
each be more than 19 inches away from any walls. The diagram is not to scale.

Kali Audio WS-6.2 Users’ Guide 13
Subwoofer Placement
The next position to try is the subwoofer and speakers against a rear wall. This position will
excite room modes, but it does so in a predictable way. You may need to adjust the level of
the sub down, as the wall will reinforce its response.
Experiment with different listening positions to find one that is relatively unaffected by room
modes.
Another good starting point is to put your setup in a corner, with the subwoofer at the apex
of the corner. This will allow the floor and both walls to reinforce the sub’s response. De-
pending on your listening position, this gives you a great chance of having powerful, even
bass.
Make sure you listen in this position before you commit to it!

Kali Audio WS-6.2 Users’ Guide 14
Configuring Your System
Stereo
Most users will use the WS-6.2 in a stereo configuration, with left and right signals going into the sub,
and then high-passed signal coming out of the sub into the main full range speakers. For this use,
engage the “80 Hz” crossover.
This crossover is designed for use with Kali Audio’s studio monitors, but it should work well with most
popular studio monitors, including the Adam A- and T-Series, the KRK Rokits, the JBL 3- and 7-Se-
ries, the Presonus Eris Series, and the Yamaha HS-Series.
When using the subwoofer in a stereo configuration, send the right and left signal into the corre-
sponding inputs in the WS-6.2. It does not matter if you use TRS, XLR, or RCA for input. Using XLR
cables, connect your left and right speakers to the corresponding outputs from the WS-6.2.
The 80 Hz setting is the only setting that will send signal via the outputs. It also allows for the sub-
woofer to be bypassed. When the subwoofer is bypassed, full range (not high-passed) signal will be
sent from the outputs.

Kali Audio WS-6.2 Users’ Guide 15
Configuring Your System
Multichannel (x.1)
If you’re using the WS-6.2 as the low frequency effects (LFE) channel in a multichannel setup, use the
“LFE” setting. LFE is the “.1” channel in formats like 2.1, 5.1, 7.1, and 7.1.4. The format means that
there will be a dedicated channel of audio that should only go to the sub.
The WS-6.2 is powerful enough for most 2.1 systems and some 5.1 systems in smaller rooms. With
7.1 and larger formats, one WS-6.2 may not be sufficient.
The LFE setting will engage a 120 Hz low pass filter that is industry standard for the LFE channel.
With larger formats like 5.1 and 7.1, you may wish to use multiple WS-6.2s This can be done easily
if your interface or receiver will allow you to send an identical LFE channel on multiple outputs. One
particularly useful arrangement with multiple subs is to have them against the side walls, 1/4 of the
way into the room. Diagram is not to scale.

Kali Audio WS-6.2 Users’ Guide 16
Configuring Your System
External Crossover
For a variety of reasons, you may wish to use an external crossover to send signal to the WS-6.2 and
to your other speakers. For this, the “External” setting is available. If using the “External” setting, the
WS-6.2 will play whatever signal is sent to the input, with no low pass filter. This means that even high
frequency content may play through the sub, which is not desirable. Be sure that your low pass filter
is engaged before playing the WS-6.2 at high levels when using the “External” setting.

Kali Audio WS-6.2 Users’ Guide 17
The WS-6.2’s enclosure is made of MDF wood and wrapped in vinyl, which is sensitive to heat and hu-
midity. The product should be kept and used in a climate-controlled environment. Exposure to direct
sunlight, moisture, or consistent humidity above 65% may cause the vinyl to peel and wrinkle. This is
not covered under warranty.
Climate Considerations
First Time Setup
Once the subwoofer is in position, follow these steps to get it turned on and playing for the first time.
1. Make sure that the power switch on the sub is set to the OFF position.
2. Turn the volume control on the back of the sub all the way down.
3. Plug the subwoofer into power.
4. Plug in your audio cables from your source, and, if you’re using the 80 Hz crossover, to your
main speakers. Refer to pages 14 and 17 for more information about configuring your system.
·If you’re using the 80 Hz crossover, also power off your main speakers, and set their
output to a nominal level.
5. Turn on your audio source.
6. Power on the subwoofer and speakers.
7. Slowly turn the volume on the subwoofer up to the center detent. If you hear distortion, turn
the subwoofer back down and check that all of your connections are tight.
8. Use the volume knob on the subwoofer to adjust its level relative to the main speakers.
Enjoy your new subwoofer!

Kali Audio WS-6.2 Users’ Guide 18
1. I opened the subwoofer, and it is damaged.
If you received a speaker that is obviously damaged, please contact your dealer immediately.
2. The subwoofer is making no sound.
• Is the subwoofer plugged in?
• Is the subwoofer turned on? There should be a blue LED on the front of the subwoofer if it’s on. If
this light is off, the subwoofer is turned off.
• Is the volume turned up?
• Have you made sure that the subwoofer is not being bypassed using a footswitch?
• Are all cables plugged in to both your playback device and the subwoofer?
• Are you passing audio via your playback device?
3. The subwoofer sounds distorted.
• Is the subwoofer playing too loud? Turn down the volume on the back of the subwoofer. If the dis-
tortion goes away, you may be playing the subwoofer too loud. Besides the problem of distortion,
this can be damaging to your hearing if you are close to the subwoofer.
• Is your source too loud? Turn the volume down at your source device. If the distortion goes away,
you may be overdriving the input. If this is the case, turn the volume of the subwoofer up with the
volume control on the back.
4. I hear crackling, hums, or buzzing.
• Are you using RCA?
a. If “yes,” be advised that RCA is an unbalanced connection, and is prone to picking up noise
as signal travels through the cable. This is especially true if you are using very long RCA
cables.
• Is the subwoofer close to electronics like a television, wireless router, phone, motor, or radio? If
so, these can interact with the speaker’s electronics in ways that cause unwanted noise. Try mov-
ing the subwoofer at least .5 Meters (20 inches) from any such devices.
• Are there loose objects in the room that may be buzzing with the bass? Low frequencies can cause
objects in a room to vibrate loudly. Make sure that small, hard objects like screws and other hard-
ware are secure.
5. The subwoofer stops playing.
• If the subwoofer stops playing but the blue light stays on, you may be engaging it’s thermal protect
mode, which will shut the subwoofer down so that it does not damage itself. Power the subwoofer
down, wait 2-3 minutes, and power it back on.
• If the subwoofer plays after being turned off and on again, reduce the output level of the sub, and
make sure it is in a cool, well-ventilated area so that it does not overheat.
If none of the above solves your problem, contact your dealer to initiate a return.
Troubleshooting

Kali Audio WS-6.2 Users’ Guide 19
What does this warranty cover?
This warranty covers defects in materials or workmanship for a period of one year (365 days) after
the purchase date of the product.
What will Kali do?
If your product is defective (materials or workmanship,) Kali will replace or repair the product at our
discretion - free of charge.
How do you initiate a warranty claim?
Contact the retailer from whom you bought the product to initiate a warranty process. You will need
the original receipt showing the date of purchase. The retailer may ask you to provide specific details
about the nature of the defect.
What is not covered?
The following cases are NOT covered by this warranty:
• Damage from shipping
• Damage from dropping or otherwise mishandling the speakers
• Damage resulting from failure to heed any of the warnings outlined on pages 3 and 4 of the user’s
manual, including:
1. Water damage.
2. Damage from foreign substances or substances entering the port tube.
3. Damage resulting from an unauthorized person servicing the product.
4. Damage resulting from the product being left plugged in during an electrical storm.
Warranty
The warranty applies only in the United States. International Customers should contact
their dealer about their warranty policy.