AudioEngine A2+ User manual

Contents
Introduction
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Unpacking
What's in
the
box...................................................................
Cleaning
Page3
Page3
Page4
Page4
Placement..
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Page
5
Features ..
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Page
5
Setup and Operation.............
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Basic
Troubleshooting.........
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Page
11
Warranty .................................................................
Page
13
Specifications ..................................................................
Page
15
About
Audioengine ..
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Page
16
Support
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Page
16

Basic
Safety
Instructions
•
Read
these
instructions
for
all
components
before
using
this
product.
•
Keep
these
instructions
for
future
reference.
•
Heed
all
warnings
on
the
product
and
in
the
owner's
guide
Follow
all
instructions.
•
Do
not
use
this
apparatus
near
water
or
moisture.
Do
not
use
this
product
near
a
bathtub,
washbowl,
kitchen
sink,
laundry
tub,
in
a
wet
basement,
near
a
swimming
pool,
or
anywhere
else
that
water
or
moisture
are
present.
•
Clean
only
with
a
dry
cloth
and
as
directed
by
the
manufacturer.
Unplug
this
product
from
the
wall
outle
before
cleaning.
•
Do
not
block
any
ventilation
openings.
Install
in
accordance
with
the
manufacturer's
instructions.
To
ensure
reliable
operation
of
the
product
and
to
protect
it
from
overheating,
put
the
product
in
a
position
and
location
that
will
not
interfere
with
its
proper
ventilation.
For
example,
do
not
place
the
product
on
a
bed,
sofa,
or
similar
surface
that
may
block
the
ventilation
openings.
Do
not
put
it
in
a
built-in
system,
such
as
a
bookcase
or
a
cabinet
that
may
keep
air
from
flowing
through
it's
ventilation
openings.
•
Do
not
install
near
any
heat
sources,
such
as
radiators,
heat
registers,
stoves
or
other
apparatus
that
produce
heat.
•
Do
not
defeat
the
safety
purpose
of
the
polarized
or
grounding-type
plug.
A
polarized
plug
has
two
blades
with
one
wider
than
the
other.
A
grounding-type
plug
has
two
blades
and
a
third
grounding
prong.
The
wider
blade
or
third
prong
are
provided
for
your
safety.
If
the
provided
plug
does
not
fit
in
your
outlet,
consult
and
electrician
for
replacement
of
the
obsolete
outlet.
•
Protect
the
power
cord
from
being
walked
on
or
pinched,
particularly
at
plugs,
convenience
receptacles,
and
the
point
where
they
exit
from
the
apparatus.
•
Only
use
attachments
or
accessories
specified
by
the
manufacturer.
•
Use
only
with
the
cart,
stand,
tripod,
bracket
or
table
When
a
cart
is
used,
use
caution
when
moving
the
cart/
apparatus
CAUTION:
TO
REDUCE
THE
RISK
OF
ELEcrRIC
SHOCK,
DO
NOT
REMOVE
COVER
(OR
BACK.)
NO
USER-SERVICABLE
PARTS
INSIDE.
REFER
SERVICING
TO
QUALIFIED
PERSONNEL
combination
to
avoid
injury
from
tip-over.
•
Unplug
this
apparatus
during
lightning
storms
or
when
unused
for
long
periods
of
time
to
prevent
damage
to
this
product.
•
Refer
all
servicing
to
qualified
service
personnel.
•
Servicing
is
required
when
the
apparatus
has
been
damaged
in
any
way
such
as
power
supply
cord
or
plug
is
damaged,
liquid
has
been
spilled
or
objects
have
fallen
into
the
apparatus,
the
apparatus
has
been
exposed
to
rain
or
moisture,
does
not
operate
normally,
or
has
been
dropped.
•
Do
not
attempt
to
service
this
product
yourself.
Opening
or
removing
covers
may
expose
you
to
dangerous
voltages
or
other
hazards.
Please
contact
the
manufacturer
to
be
referred
to
an
authorized
service
center
near
you.
•
To
prevent
risk
of
fire
or
electric
shock,
avoid
over
loading
wall
outlets,
extension
cords,
or
integral
convenience
receptacles
.
•
Do
not
let
objects
or
liquids
enter
the
product
as
they
may
touch
dangerous
voltage
points
or
short
out
parts
that
could
result
in
a
fire
or
electrical
shock.
•
See
product
enclosure
bottom
for
safety
related
markings.
•
Use
Proper
Power
Sources.
Plug
the
product
into
a
proper
power
source,
as
described
in
the
operating
instructions
or
as
marked
on
the
product.
•
Avoid
power
lines-
Use
extreme
care
when
installing
an
outside
antenna
system
to
keep
from
touching
power
lines
or
circuits,
as
contact
with
them
may
be
fatal.
Do
not
install
external
antennas
near
overhead
power
lines
or
other
electric
light
or
power
circuits,
nor
where
an
antenna
can
.
fall
into
such
circuits
or
power
lines.
This
device
complies
with
part
15
ofthe
FCC
Rules.
Operation
is
subject
to
the
following
two
conditions:
This
device
may
not
cause
harmful
interference
and
this
device
must
accept
any
interference
received,
including
interference
that
may
cause
undesired
operatio.
ATTENTION:
POUR
R
DUIRE
LE
RISQUE
DE
D
CHARGE
i:LECTIQUE,
NE
RETIREZ
PAS
LE
COUVERCLE
(OU
L'ARRI~RE.)
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SETROUVE
AL'INTi:RIEURAUCUNE
Pli:CE
POUVANT
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Introduction
Welcome
to
the Audioengine family and congratulations on
your purchase
of
the A2+ Premium Powered Desktop Speakers.
The Audioengine team
is
dedicated
to
bringing you the highest
quality listening experience possible and the A2+
is
designed
with
the same attention
to
detail and operational simplicity
as
otherAudioengine products. Our goal
is
to
getyou
to
your
music
as
simply
as
possible
without
all the"gadget tinkering"
that
other products generally require.
As
with
ourother past
efforts, we thankall our customers and resellers for helping
us
create anothergreat Audioengine product!
Unp
acking
Your Audioengine speakers were carefully tested and inspected
before packaging and shipping. After unpacking please
check for any damage.
It
is
rare
that
a
unit
is
damaged during
shipping,
but
if
this does happen contact the shipping company
immediately.
We
recommend
that
you keep
the
original carton
and packing material for any possible future shipping.

Whats
in
the
box
•
(1)
A2+ powered (left) speaker
• (1)
A2+ passive (right) speaker
•
(1)
Speaker wire, 2 meters
(-6.5
feet)
• (1)
Power supply
• (1)
Power cord
•
(1)
Mini-jackaudio cable,
1.5
meters
(-5
feet)
•
(1)
USB
cable,
1.5
meters (
-5
feet)
•
(2)
Microfiber speaker bag
• (1)
Microfiber powersupply bag
• (1)
Microfibercable bag
• (1)
Setup guide
• (1)
Product line brochure
Cleaning
Your A2+ speakers are designed for years
of
use
with
no
maintenance
as
long
as
you avoid exposure
of
the
speakers
to
moisture
or
high temperatures. The hand-finished MDF
wood
cabinets are very durable and are easily cleaned by
wiping
down
with
a soft,
dry
cloth.
We
do
not
recommend using cleaners
or
solvents.

Placement
Place
your Audioengine 2+ speakers at acomfortable listening
location
with
no obstructions at
the
front
or
back.
If
you find
that
raising them
to
an
angle produces the best sound, this
is
easily achieved by adding
the
DS
1 Desktop Stands (available
separately).
We
recommend at least 3 inches
of
clearance around
the
back
of
the
cabinet for good air circulation.
Features
• Built-in poweramplifiers
• Dual audio inputs
•
USB
computer audio
input
·Variable audio
output
·High-quality
connectors
·Custom
Kevlar woofers and silk
dome
tweeters
• Power-saving idle mode
• Hand-built cabinets
• Magnetically shielded
•Cables included

•
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Setup and 0 eration
Step 1 -Connecting the speaker wire
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Speaker wire connection
0
1.
Use
your
thumb
and finger
to
unscrew
the
connectors.
2.
Inserteach speaker wire
into
the
holes on
the
side
of
connectors.
3.
Retighten
the
connectors
with
yourfingers.
4.
The bare portion
of
the
wire should be secured firmly in each
connector.
Repeat
the
procedure
to
connect
the
otherend
of
the
speaker
wire
to
the otherspeaker. Check
to
make sure none
of
the
speaker wire strands have come in contact
with
a nearby
connector.

~Paudioengine
As
the
A2+ speakers have
the
power amplifiers
built
inside,
do
not
connect
the
speaker terminals
to
the
speaker outputs
of
a
stereo receiver.
Step
2-
Connecting the Power Supply
o
C>k"
['
Power cord connection
Verify
that
the
volume/power switch on
the
rear panel
of
the
left
speaker
is
in the
OFF
position by rotating
it
counterclockwise
until
it
clicks off.
1.
Connect
the
cable from
the
power supply
to
the
leftspeaker
rear panel.
2.
Connect
the
powercable
to
the
other
end
of
the
power
supply.

3. Connect
the
powercable
to
an
AC
poweroutlet.
4. Verify
that
the
LED
indicatoron
the
power supply
is
illuminated. ·
Use
only
the
power supply provided
with
the
speakers.
Step
3-
Connecting an Audio Source
Using
the
appropriate audio cable, connect
the
speaker inputs
to
youraudio source (computer, iPhone, iPad, etc.). One example
is
shown in
the
diagram.
Computer
to
A2+ audio
input
Computer
Headphone
Output
~/
__
-4\
~/
__
-4\
0 0
® ®
Inp
ut
i
~
~
~
in
put '
O
ut
put
~~-~
"'·
~
- -
-
-~~---···
".
·
·
·""~-'"·"-
-
- -
·
·
""·-~
--
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-
--
-
---···"'"---~
-
..r
H

Another
option
for connecting a
computer
to
A2+
is
via
USB
audio. Using
the
included
USB
cable, connect
as
shown in
the
diagram.
0 0
® ®
Computer
USB
to
A2+
Computer
USB
port
~·USB
Input
For
PC,
the
A2+ should be recognized automatically.
For Mac, under System Preferences/Sound/Output, select
"Audioengine 2+"
For advanced setup tips visit: audioengineusa.com

Step 4- Enjoying your Speakers
1. Turn on the rear panel volume/power knob and set the
volume control to about 3 o'clock.
2. Turn on your audio source and adjust the volume to your
desired listening level.
Two audio sources may be connected
to the speakers at the
same time. To adjust the volume, we recommend using the
individual volume controls on each source.
We recommend using a high-qualitysurge suppressor and/or AC
line filter on all electronics equipment.

Basic Troubleshooting
If the LED indicator on the power supply is not illuminated:
-Check
to see that the power cord is securely connected to the
power supply and
to an AC power outlet.
-Check
that the AC power outlet is supplying power.
If the speakers do not produce sound:
-Check
that the cable from the power supply is connected to
the rear panel, and that the LED indicator on the power supply is
illuminated.
-Check
that the volume/power knob on the rear panel is not set
to minimum volume or powered off (we recommend at least a
10 o'clock position).
-Check
that the volume level of your audio source in not set to
minimum or powered off.
-Check
that the wire from your audio source to your speakers
is properly connected (occasionally the 1/8"cable feels as if it is
inserted all the way, but is not).
If the speakers produce sound from the left speaker but not the
right:
-Check
that the speaker wires are correctly connected between
the left and right speaker connectors.
-Check
that the cable from your audio source to the speakers is

properlyconnected.
If
the
sound
is
distorted:
-Decrease
the
volume
of
the
input
audio source and increase
the
volume
of
the
speakers.

Warranty
Period
All Audioengine products have a 3-year Limited Warranty on
parts and laborfrom date
of
purchase. Your warranty
is
auto-
matic,
so
there
is
no need
to
register. This Limited Warranty ap-
plies
only
to
Audioengine products purchased in
the
Continental
United States. For Limited Warranty coverage elsewhere, please
contactyour Audioengine dealer, reseller, or distributor.
What
is
covered
All defective parts
or
faulty workmanship.
What
is
not
covered
The Audioengine Limited Warranty does
not
cover damage
caused byaccident, misuse, abuse, neglect, excessive moisture,
lightning, powersurges, otheracts
of
nature, unauthorized prod-
uct modification
or
repairs,
or
failure
to
follow
the
instructions
outlined in
the
Setup Guide.
What we will
do
We
will repair
or
replace any defective parts, at
our
option,
within
a reasonable
amount
of
time
and free
of
charge any
time
dur-
ing
the
warranty period. After service, we will be responsible for
shipping
the
product
back
to
you at
our
expense.
What we
ask
from you
You
will be responsible for shipping
or
transportation charges
directly
to
Audioengine
or
to
an
authorized dealer.
We
recom-
mend
that
you keep
the
original shipping materials,
as
it
is
important
that
you package
the
product
so
that
it
will
not
be
damaged
during
shipping. Audioengine cannot be responsible
for any damages incurred during shipping due
to
poor
packing,

so please packwell and make sure to insure your shipment.
How to obtain AudioengineWarranty service
If you have any questions about your warranty coverage or you
think you may need service, email the Audioengine Authorized
Service Center at: [email protected]
or call toll-free
in
the United States at: [phone]. We will do everything we
can to answer your questions and resolve any issues as quickly as
possible.
Exclusive Remedy
This Limited Warranty
is fully transferable provided that the cur-
rent
owner furnishes the original proof of purchase and that fur-
nishes
the original proof of purchase and that the serial number
on the product is intact. THE MAXIMUM LIABILITY OF AUDIOEN-
GINE SHALL NOT EXCEED THE ACTUAL PURCHASE PRICE PAID BY
YOU FOR THE PRODUCT. IN NO EVENT SHALL AUDIOENGINE BE
LIABLE FOR SPECIAL, INCIDENTAL, CONSEQUENTIAL OR INDI-
RECT DAMAGES.
Product Returns and Refunds
Your satisfaction
is guaranteed! Should you have a problem or
are not satisfied with any Audioengine product, send us an email
at:
[email protected]
or call toll-free in the United
States at: [phone].

General Specifications
Type:
Power
output:
Inputs:
Voltages:
Amplifiertype:
Drivers:
2.0
powered multimedia speaker system
60W peak powertotal (15W
RMS
I
30W peak per channel),
AES
1
/8"
stereo mini-jack,
RCA,
USB
11
0-240V, 50/60Hz auto-switching
Dual
Class
AB
monolithic
2.75" Kevlar woofers, 20mm silk
dome
tweeters
Signal-to-noise: >95dB (typical A-weighted)
THD:
<0.05o/o
at all power settings
Crosstalk: <50db
Frequency response: 65Hz-22kHz +/-2.0dB
Sensitivity: 88db
SPL
(1
w@1
m)
Input
impedance: 1
OK
ohms unbalanced
Protection:
Dimensions (each):
Weight
(LEFT):
Weight
(RIGHT):
Shipping weight:
Shipping box dims:
Output
current limiting, thermal over-tern
perature, power
on/off
transient protection
6"(H) X 4"(W) x 5.25"(D)
41bs
3lbs
4.6kg (-101bs) per pair
1
0.5"
(H)
X 15"
(L)
X 7"(W)
Materials and Construction:
18mm
thick
MDF cabinets
20mm silk
dome
tweeters
with
neodymium magnets
2.75
11
Kevlar woofers
with
advanced voice coils

About
Audioengine
Audioengine
designs and builds
innovative
audio
products
with
all
your
music in mind. Great sound, simple
but
elegant
designs,
high-quality
materials, and
truly
useful features are
what
Audio-
engine
is
all
about.
We sincerely
hope
you
get
as
much
enjoy-
ment
from
our
products
as
we've had creating
them!
For
infor-
mation
about
our
other
products
go
to:
www.audioengineusa.com
Support
If
you have any questions
or
feel you may need service
contact
the
reseller
where
you
purchased
your
A2+
or
feel free
to
email
us
directly
at:
support@audioengineus~.com
or
call toll-free in
the
United States: [phone]

{l~
audioengine
[email protected]
audioengineusa.com

Stream high-quality audio from your computer
to headphones or any music system.
Vo lume
Control Power Headphones
T
26mm
1
90mm ------ - ~
01 Front
Audioengine 01 Premium 24- bit DAC
Features
• 24-bit digital- to -analog co nverter (DAC)
• Mac or PC plug-n-play, no dr i vers to install
• High-performance headphone
amp
• USB and op tical S/ PD IFinputs
•
USB -powered
• Stream
bit -perfect HD audio with l ow jitter
• Based on high-performance AK4396 DAC
What's in the bo x
(1 ) 0 1 DAC
(1) U SB ca ble, 2ft (0.6m)
(
1) Cl ot h product bag
(1) Se tup guide
(1) Product line brochure
Audioengine Dl will make all your
computermusicsound better!
RCA
Outputs U
SB
S/P DIF In put/
In put Power
•• ~"1
1----- - - 90 mm -------1
01 Back
T
26mm
1
Dl case depth: 95mm
Join thecomputer audio revolution
Technical Specifications
Electrical
Full Scale
Output: 2.0V RMS
Fr equency Response: 10 Hz-25 kH z,+/- 0.5dB
SIN Ratio: ( DC to 20 kHz) > 11 0 dB
THD+N (
1kHz FS 96kS/s): <0.0025%
I
nterface
Input Data Rate: up to 192KS/s
Input Bit Depth: up to 24 bits
USB: Type 1
.1 or above
Power Requirements: 130mA
For additionalspecificationsand product
information
go to: audioengineusa.com