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CURRENT DRAW

The next step is to verify the current draw. You 
would only be able to know this by reading the 
manufacturer’s instructions for the effects pedal 
you are using. If the requirement is over 100mA and 
under 300mA, you will need to use outputs 7 and 8 
on the Aetos. For anything less than 100mA, you 
can use channels 1-6 (Note: using the high current 
output channels 7 and 8 for a low current draw 
pedal will work fine and will not hurt the pedal. The 
high output only refers to the capacity of the 
current that can be drawn). Most analog pedals (not 
all analog pedals), require under 25mA, for 
example, most overdrives, fuzz pedals, boost 
pedals, distortion and compression pedals are 
transistor based and do not have the large number 
of components that digital pedals do. Digital pedals 
have DSP chips (digital signal processors) which 
are micro controllers that contain thousands of little 
transistors on the single chip along with Analog to 
Digital Converters (ADACs), Memory chips and 
other components that draw far greater current 
than analog pedals.

BACK PANEL A

WARNING:

If product is defective, do not attempt to fix it 
yourself. Please contact Walrus Audio to for help. 

If 

the backplate has been opened on the Aetos, 
the warranty for your product will be voided.

WHAT TO DO IF REPAIR IS NEEDED:

If the product has become defective during the 
duration of the 5 year warranty, please contact 
Walrus Audio and setup an RMA (Return Merchan-
dise Authorization). Once determined by Walrus 
Audio that the product needs repair, Walrus Audio 
will send you an RMA reference number. Then ship 
the Aetos back to Walrus Audio, including your 
warranty card and purchase receipt. You will also 
need to include a pre-paid return shipping label in 
the package. You must write the provided RMA 
reference number on the box or it will not be 
received. (We only accept FEDEX or UPS shipping 
methods). 

We are not responsible for the returned 

product until it is received on our dock and 
scanned as ‘delivered’ by the shipping company. 

Do not attempt to return a product without first 
receiving an RMA reference number.

INTRODUCTION TO CLEAN (ISOLATED) POWER

The Aetos is designed  around a custom-wound 
toroidal  transformer, providing isolation to each of 
the 8 regulated outputs channels. The alternatives 
to multi-output isolated power supplies are 
individual wall-warts and daisy chains. Wall-warts, 
which do offer isolation, often lack the filtering that 
is necessary for audio applications and they take 
up an enormous amount of space.  The daisy 
chain power supplies, while being cheap in price, 
often have grounding issues as a result of having 
multiple pedals pulling different currents from the 
power source creating ground loops and magnetic 
field issues.  The noise is increasingly evident if 
you are powering higher current modulation 
effects or more than a few pedals. The advantages 
of isolated power supplies are well documented, 
but in summary, having each pedal in your chain 
have its own isolated power channel prevents 
‘leakage’ of ground loops or the magnetic  field of 
one pedal onto the power channel of another. 
These ground loops are often what introduce the 
hum and buzz into the signal chain. Isolated or 
“Clean Power” is the best choice for serious 
players and highly recommended for all Walrus 
Audio products. 

POLARITY

The next step is to check the polarity of the device 
you are using. The vast majority of DC powered 
effects pedals are negative ground, much to the 
result of most early pedals being powered off of 
9VDC batteries with the negative terminal of the 
battery connected to ground. Carrying on with the 
trend, most pedal manufacturers design ‘negative 
to ground’. The majority of DC jacks are center 
negative and have a 2.1mm center barrel. Most of 
the market has followed the lead of boss and 
Ibanez and has standardized this jack for their 
pedals. For all standard effects pedals with center 
negative 2.1mm barrels, you can use the 
Black-to-Black barrel connectors. Specifically, for 
line 6 pedals, you will have to use the Black-to-Red 
connectors. If you have a question about the 
voltage requirement of your pedal or which of the 
Aetos outputs to use, contact us at 
sales@walrusaudio.com

WARNING:
1) Input  Voltage Requirements – 230V (60Hz). 
This product will be destroyed if any other input 
voltage is used voiding the warranty.
2) If backplate is opened, the warranty is 
immediately voided. For repairs or questions, 
contact Walrus Audio directly at sales@wal-
rusaudio.com
3)  Always check the power requirement of the 
pedal you are plugging in to,

TROUBLESHOOTING

For troubleshooting issues, contact Walrus Audio 
directly at sales@walrusaudio.com

WARRANTY

The Aetos comes with a 5 (five) year warranty for 
workmanship and components. The 5 year 
Warranty time frame begins on the date of 
purchase. This warranty does not include misuse or 
accidents resulting in damage. The warranty is not 
transferable or assignable and will only be issued to 
the original owner. The warranty will only be valid 
for those who have a registered warranty card and 
a receipt showing the date of purchase. 

REGISTRATION

Please register your product with us by filling out 
and returning the warranty card that is included 
with this product. If there is any defect with your 
product, as a result of the workmanship or 
materials, Walrus Audio will repair or replace the 
product at no charge to the customer.

Standard 2.1mm 
9VDC plug for 
Most Effects Pedals

Standard 2.1mm 
9VDC Jack

Negative–to–Ground

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