AT-HA
40USB
AT-HA40USB
・A computer with a USB 2.0 port
・CPU: Pentium 4 (1.8 GHz or more)
・ 、 、 、OS: Windows XP Windows Vista Windows 7 Mac OSX
Specifications
Computer requirements
Parts and Their Functions
Computer requirements:
A computer with a USB 2.0 port
CPU: Pentium 4 (1.8 GHz or more)
RAM: 512 MB or more
Compatible OS:
Windows XP, Windows Vista, Windows 7, Mac OSX
PC interface: USB 2.0 interface
Headphone output jack:
Compatible sampling frequency:
32 kHz, 44.1 kHz, 48 kHz, 96 kHz
φ3.5 mm stereo mini jack
Frequency response:
10 Hz to 40 kHz (at 3 dB, 96 kHz)−
Maximum output level:
45 mW + 45 mW (at 32Ω, 10% T.H.D.)
Total harmonic distortion:
Less than 0.07 % (at 32 , 20 mW output)Ω
Signal-to-noise ratio: Greater than 95 dB (JIS-A)
Line output jack:
Compatible sampling frequency:
32 kHz, 44.1 kHz, 48 kHz, 96 kHz
3.5 mm stereo mini jackφ
Frequency response:
10 Hz to 40 kHz (at 3 dB, 96 kHz)−
Total harmonic distortion:
Less than 0.02 % (at 0 dBV, 1 kHz)
Signal-to-noise ratio: Greater than 98 dB (JIS-A)
Nominal output level: 0.8 Vrms
Optical digital output jack:
Compatible sampling frequency:
32 kHz, 44.1 kHz, 48 kHz, 96 kHz
Compatible format S/PDIF: PCM audio
Dimensions: H25×W62×D57 mm (excluding protruding parts)
Weight: Approx. 55g (main unit only)
Accessory: USB (2.0) cable 1.0 m
(For product improvement, this product is subject to modification without notice.)
229501991
Headphone output jack
(HEADPHONE)
Connect to a headphone equipped
with a 3.5 mm stereo mini plug. φ
This can be used while using
another output jack.
Line output jack (LINE OUT)
Connect to an active speaker or an
amplifier through a line cable (sold
separately) equipped with φ3.5
mm stereo mini plug. This can be
used while using other output
jacks.
Optical output jack
(OPTICAL OUT)
Digitally output audio signal from a
computer through an optical digital
cable (sold separately). This can be
used while using other output jacks.
USB input
Connect to a computer through the supplied
USB cable. Connect directly to USB port of a
computer for a 96 kHz/24 bit operation.
Headphone volume
Adjust the volume level of the sound
heard from a connected headphone.
*This model utilizes an analog
volume control circuit; as a result you
might experience a slight difference
in audio level between the right and
left channels at the minimum volume
setting.
Power indicator (POWER)
Lights up green when powered and while connected to
computer.
Thank you for purchasing this product. Before using this
product, please make sure that you read through this user
manual to ensure that you will use it correctly.
USER MANUAL
USB HEADPHONE AMPLIFIER AT-HA40USB
Outline dimensions
(Unit: mm)
Caution
●Do not use any USB cables other than the supplied one.
Doing so can result in malfunction.
●To prevent fire or shock hazard, do not expose this
apparatus to rain or moisture.
●To avoid electric shock, do not open the cabinet.
●Refer servicing to qualified personnel only.
●To prevent fire, do not place any naked flame sources (such
as lighted candles) on this apparatus.
●To prevent fire, do not cover the ventilation of this
apparatus with newspapers, table-clothes, curtains, etc.
●Do not expose this apparatus to drips or splashes.
●Do not place any objects filled with liquids, such as vases,
on this apparatus.
●Do not install this apparatus in a confined space such as a
bookcase or similar unit.
●Install this apparatus only in places where ventilation is
good.
●In case of emergency, disconnect the USB cable from your
computer quickly.
●Do not place this product in a vertical position or in an
unstable place.
●Before using this product, be absolutely sure to read the
user manual supplied with the products that are to be
connected.
●Be sure to purchase the appropriate conversion plug
adapter when connecting to headphones with other than
φ3.5 mm stereo headphone plug.
●Firmly insert each plug all the way into its base.
●Before connecting, turn the volume level down of this
product and the devices to which this product is connected.
●A rectangular optical digital cable is required when
connecting to the optical output jack.
●A line cable is required when connecting to the line output
jack. Please purchase an appropriate cable according to the
connected device.
●Before connecting or disconnecting the cable, turn the
connected computer off.
● This product is not compatible with monaural headphones.
●Noise may occur depends on inner ear headphones.
Operation Computer settings
*Refer also to the user manual of each device to which this
product is connected.
*Before connecting, make sure the power of each device to
which this product is connected is off.
*This product is powered by USB bus power.
1. Connect to a computer or each device you use as shown
below.
2. Turn on the power of the computer. The power indicator of
this product lights up.
3. Configure the computer settings according to ''Computer
settings'' of each OS.
4. Play music using a computer. Adjust the volume level of the
sound heard from a connected headphone.
*This product cannot adjust the volume of devices which are
connected to the line output jack and optical output jack.
*This model utilizes an analog volume control circuit; as a result
you might experience a slight difference in audio level
between the right and left channels at the minimum volume
setting.
1. This product is registered automatically as an audio
device at first time connection.
2. [START]->[Control panel]->[Hardware and sound
settings]->[Sound]->[Play]
Select [AT-HA40USB] and click [Reset] and then click
[Apply].
Windows Vista Windows 7、
1. This product is registered automatically as an audio
device at first time connection.
2. [START]->[Control panel]->[Sound and audio property]->
[Audio]
Select [AT-HA40USB] in [Previously-defined device] of
[Sound reproduction] and click [OK] and then close the
window.
Windows XP
1. This product is registered automatically as an audio
device at first time connection.
2. Open [System environmental setting] in [Application].
3. Click [Sound] and select [AT-HA40USB] in [Output] tab.
Mac OS X
62
25 57
LINEOUTOPT OUTICAL
USB
AT-HA
40
USB
Front
Rear
■Connection example *Each cable, except for a USB cable
and headphones, are sold
separately.
Headphones (sold separately)
AV amplifier
Active speaker
( equipped with
line output jack )
Line cable
(sold separately)
Rectangular optical cable
(sold separately)
Computer
φ3.5 mm stereo mini jack
φ3.5 mm stereo mini jack
USB cable 1.0 m
(supplied)
AT-HA40USB
2012
