Strymon ZUMA R300 User manual

USER MANUAL

ZUMA R300 - High Current DC Power Supply User Manual
®pg 2
Important Safety Information
Before using Zuma R300, please be sure to read all operating
instructions carefully.
• Read, follow, and keep these instructions.
• Heed all warnings.
• Do not expose this unit to liquids or moisture.
• Clean only with a dry cloth.
• Use in a ventilated, non-enclosed area.
• Do not install near any heat sources.
• Do not exceed 36W of total output power.
• Do not defeat the safety purpose of the polarized or grounding-
type plug.
• Protect the power cord and pedal cables from being walked on or
pinched.
• Use only attachments and/or accessories specified by Strymon.
• Unplug during lighting storms or when unused for long periods of
time.
• Do not attempt to service this unit yourself, as opening or
removing cover may expose you to dangerous voltage or
other hazards. Refer all servicing to qualified Strymon service
personnel.
• Servicing is required when the unit has been damaged in any way,
such as a power cord or plug is damaged, liquid has been spilled
or objects have fallen into the unit, the unit has been exposed to
rain or moisture, does not operate normally, or has been dropped.
• Never push any object into the slots or openings on your unit
enclosure.
• When connected to a power outlet, power is always flowing into
your unit. To totally disconnect power, unplug the power cord.

ZUMA R300 - High Current DC Power Supply User Manual
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Important Safety Information (cont.)
TO REDUCE THE RISK ELECTRIC SHOCK DO NOT
REMOVE COVER (OR BACK).
NO USERSERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE.
The lightning flash, with an
arrowhead symbol, within
an equilateral triangle, is
intended 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.
The exclamation point within
an equilateral triangle is
intended to alert the user to
the presence of important
operating and maintenance
(servicing) instruction in the
literature accompanying the
appliance.

ZUMA R300 - High Current DC Power Supply User Manual
®pg 4
Strymon Power Distribution System
Strymon Zuma and Ojai power supplies are part of an expandable
modular power distribution system designed to keep growing with
your pedalboard. When it’s time to add more pedals to your rig, you
can easily add more power outputs with an Ojai expansion kit.
The heart of the system is a Strymon Zuma or Ojai power supply (like
the Zuma R300 shown above), which connects to an AC power outlet.
Additional outputs are added to the system by connecting one or
more Ojai expansion kits (sold separately) to the 24V OUT jack of the
power supply.
ZUMA R300
Zuma R300 is a flexible, low-profile, high output power supply that
provides ultra-clean, isolated power for up to five effect pedals. It can
be used on its own, or as the first supply in a larger Strymon power
system with additional outputs.

ZUMA R300 - High Current DC Power Supply User Manual
®pg 5
Getting Started
• IEC CABLE
Connect the included IEC cable to Zuma R300 and plug the other end
into an AC power outlet. Zuma R300 operates worldwide with the
appropriate IEC cable.
• 24V DC OUT
Connect a Strymon Ojai (sold separately) to the 24V DC OUT jack and
gain additional outputs for your pedals.

ZUMA R300 - High Current DC Power Supply User Manual
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• LED INDICATORS
Each output features an LED indicator. LED illuminates green when a
pedal cable is plugged in. LED will turn off if cable is unplugged, or the
current draw on the output exceeds the maximum amount available.
A total of five high or low-current pedals can be connected to Zuma
R300 with the included 5.5mm x 2.1mm pedal cables. Additional
outputs can be added by connecting a Strymon Ojai (sold separately) to
the 24V OUT jack. Each output is dual-isolated for noise-free operation.
Zuma R300 will power most effects pedals on the market, including
all Strymon pedals. Check with each pedal manufacturer for
recommended voltage, polarity, and required current. For pedals
that have unique power requirements (more than 500mA of current,
other voltages such as 24), you can find configuration details here:
strymon.net/support/zuma-r300
Connect Your Pedals

ZUMA R300 - High Current DC Power Supply User Manual
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• ADJUSTABLE OUTPUT
One output provides selectable 9V, 12V, or 18V DC with center negative
polarity. It provides 500mA of available current at 9V, 375mA at 12V,
and 250mA at 18V. Make sure this output is set to 9V before connecting
your Strymon pedals.
• 9V OUTPUTS
Four outputs provide 9V DC, center negative polarity, each with
500mA of available current. Use these outputs first to power your
Strymon pedals.
Connect Your Pedals (cont.)

ZUMA R300 - High Current DC Power Supply User Manual
®pg 8
Zuma R300 is Expandable
Is your pedalboard growing? Gain more outputs by linking as
many as 5 Ojai units to your Zuma R300, powering up to 30 effects
pedals. While it’s unlikely that anyone would go to such extremes,
we wanted to ensure Zuma delivers maximum flexibility and
expandability. A much more likely scenario would be to link 1 or 2 Ojai
units to your Zuma R300, powering a combination of up to 15 high and
low current draw pedals.
Learn more about linking Zuma R300 power supplies together here:
strymon.net/support/zuma-r300
TO CONNECT OJAI UNITS TO YOUR ZUMA R300:
1. Power your Zuma R300 with the included IEC cable.
2. Connect one end of Ojai’s included EIAJ-05 power adapter cable
to the 24V OUT on your Zuma R300.
3. Connect the other end of the EIAJ-05 power adapter cable to the
24V IN of your Ojai.
4. Link additional Ojai units by connecting the 24V THRU of the last
Ojai in the chain to the 24V IN on the Ojai you wish to add to the
system using its included EIAJ-05 cable.

ZUMA R300 - High Current DC Power Supply User Manual
®pg 9
DRILL TEMPLATE
HOLE LOCATIONS
#4 SCREWS
Installation Instructions
Locate the Drill Template that is included in the box. It is also
available for download here: strymon.net/support/zuma-r300.
Choose your mounting location. Tape the Drill Template, logo side
up, in the location you want to install your Zuma R300.
This illustration shows mounting to the top of your pedalboard.
To mount Zuma R300 to the bottom of your pedalboard, turn the
pedalboard over before placing the Drill Template logo side up in
the location you want to install your Zuma R300.
Drill holes. Drill through the two marked hole locations with a 1/8”
(3mm) bit. Remove the drilling template.
Attach Zuma R300. Place Zuma R300 over the holes. Install from
the reverse side of your pedalboard using the provided #4 screws
(3/8”).
1
3
4
2
Zuma R300 features built in threaded hardware for easy mounting to
the top or bottom of most pedalboards.

ZUMA R300 - High Current DC Power Supply User Manual
®pg 10
Features
INS & OUTS
• Five (5) high current, fully isolated outputs with center-negative
polarity
- Four (4) dedicated 9V DC outputs (500mA)
- One (1) selectable output offer 9V (500mA), 12V (375mA), or 18V
(250mA) DC options
• 500mA per 9V DC output powers nearly any pedal
• Five (5) pedal cables included (5.5mm x 2.1mm barrel connectors,
straight to right angle, 18” length)
• Detachable IEC power cable included
• 24V Out jack allows connection to additional Strymon Ojai expansion
units (sold separately)
TECHNOLOGY
• Five (5) individual custom transformers (one per channel) deliver
clean, consistent power
• Worldwide power compatibility ensures no-hassle international
touring
• Energy efficient, compact design
CONSTRUCTION
• Lightweight and rugged anodized midnight blue aluminum chassis
• Ultra low profile design fits under nearly any pedalboard
• Designed and built in the USA

ZUMA R300 - High Current DC Power Supply User Manual
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Zuma R300 Dimensions 7.25” x 3.5” x 1.18” (184mm x 88mm x 30mm)
Zuma R300 Weight 0.9 lbs. (400g)
Zuma R300 Input 100-240V AC 50/60Hz
R300 9V DC Outputs Four (4) 9V DC, 500mA, center-negative
Adjustable Outputs One (1) Selectable 9V DC (500mA), 12V DC
(375mA), or 18V DC (250mA), center-negative
• Zuma R300 high-current DC power supply
• One (1) IEC cable (region-specific)
• Five (5) 2.1mm x 5.5mm pedal cables (18” long, straight to right
angle connectors)
• Two (2) #4 (3/8”) wide pan head screws for mounting Zuma R300 to
your pedalboard
• Quick Start Guide
• Drill Template
• Strymon sticker
Need more cables, or have unique power requirements?
For replacement and special purpose DC pedal cables, visit
strymon.net/powercables.
Specifications
What’s In the Box?
Available Accessories

ZUMA R300 - High Current DC Power Supply User Manual
®pg 12
Warranty
Strymon warranties the product to be free from defects in material
and workmanship for a period of five (5) years from the original date
of purchase. If the product fails within the warranty period, Strymon
will repair or, at our discretion, replace the product at no cost to the
original purchaser.
Exclusions
This warranty covers defects in manufacturing discovered while using
this product as recommended by Strymon. This warranty does not
cover loss or theft, nor does the coverage extend to damage caused by
misuse, abuse, unauthorized modification, improper storage, lightning,
or natural disasters.
Limits of Liability
In the case of malfunction, the purchaser’s sole recourse shall be
repair or replacement, as described in the preceding paragraphs.
Strymon will not be held liable to any party for damages that result
from the failure of this product. Damages excluded include, but are
not limited to, the following: lost profits, lost savings, damage to other
equipment, and incidental or consequential damages arising from
the use, or inability to use this product. In no event will Strymon be
liable for more than the amount of the purchase price, not to exceed
the current retail price of the product. Strymon disclaims any other
warranties, express or implied. By using the product, the user accepts
all terms herein.
For additional help with setup, connections, power, and mounting,
please visit strymon.net/support/zuma-r300 or email us at
[email protected].
STRYMON NONTRANSFERRABLE LIMITED WARRANTY
Questions?

ZUMA R300 - High Current DC Power Supply User Manual
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How to Obtain Service Under this Warranty
For North American customers: Contact Strymon through our
website at strymon.net/support for Return Authorization and
information. Proof of original ownership may be required in the
form of a purchase receipt.
For International Customers: Contact the Strymon dealer from
which the product was purchased from in order to arrange
warranty repair service.
Strymon®is a division of Damage Control®, LLC.
REVA 11.10.17