The Shure SHA900 is a compact, portable headphone amplifier that is compatible with both analog and digital audio sources. Audiophile-quality conversion delivers an exceptionally detailed audio signal over a micro-B USB connection, while premium analog components provide a clean, uncolored signal path for analog audio sources. A full set of furnished accessories includes a Lightning® cable, micro-B USB cable, two 3.5 mm cables, and an AC power adapter.
Powering on / off: Long press the power button ②
Adjusting volume: Turn the control knob ①
Accessing the menu: Double-click the control knob ①
Scroll through the menu: Turn the control knob ①
Select an item: Press the control knob button ①
Return to previous screen: Press the power button ②
Lock / unlock the controls: Slide the hold switch ③ to lock and unlock the power button and control knob. When switch displays red background, hold is enabled.
Plug into the amplifier with the amplifier powered off.
Set the INPUT switch to LINE for analog 3.5 mm sources or USB for digital sources.
3.5 mm input (analog audio)
|Plug the audio device into the LINE IN input and set the INPUT switch to LINE.
To charge the battery while using an analog source, connect the amplifier to a computer or external battery.
Connecting to an Analog Source
USB (digital audio and power)
|Use the USB cable when listening to music from a computer or other USB-equipped device and set the INPUT switch to USB. When connected to a computer, USB simultaneously streams digital audio and charges the amplifier battery.
Note: You have the option to disable automatic charging in the Utilities menu.
Connecting to a USB Source
The driver automatically installs when the amplifier is first plugged into a device. The SHA900 should take over as the default audio device.
Note: Volume controls are disabled on Windows, Mac, and iOS. Volume should be adjusted only by using the amp volume knob for best performance. Ensure that volume is maximized in iTunes or the Windows Media Player.
Firmware is embedded software in each component that controls functionality. Periodically, new versions of firmware are developed to incorporate additional features and enhancements. To take advantage of design improvements, new versions of the firmware can be downloaded and installed using the Shure Update Utility tool.
Software is available for download from http://www.shure.com/update-utility.
16-bit / 24-bit
44.1 / 48 / 88.2 / 96 kHz
10 Hz to 50 kHz
up to 107 dB A-weighted
-60 dB to +17 dB
0.05% (1 kHz)
Maximum, 1% THD
|16 Ω||135 mW + 135 mW|
|42 Ω||95 mW + 95 mW|
6 Ω to 600 Ω
Selectable Analog RMS Limiter
USB Micro-B Receptacle
3.5 mm (1/8")
3.5 mm (1/8")
USB-powered: 5 V, 0.5 A to 1 A
Chrome Plated Aluminum
182.0 g (6.42 oz.)
111 x 59 x 21 mm H x W x D
-18 to 57 °C (0 to 135 °F)
|Analog in (BYPASS EQ mode)||up to 20 hours|
|USB Input (EQ mode)||up to 10 hours|
0 to 45 °C (32 to 113 °F)
This symbol indicates that dangerous voltage constituting a risk of electric shock is present within this unit.
This symbol indicates that there are important operating and maintenance instructions in the literature accompanying this unit.
WARNING: Voltages in this equipment are hazardous to life. No user-serviceable parts inside. Refer all servicing to qualified service personnel. The safety certifications do not apply when the operating voltage is changed from the factory setting.
Changes or modifications not expressly approved by Shure Incorporated could void your authority to operate this equipment.
WARNING: This product contains a chemical known to the State of California to cause cancer and birth defects or other reproductive harm.
LISTENING TO AUDIO AT EXCESSIVE VOLUMES CAN CAUSE PERMANENT HEARING DAMAGE. USE AS LOW A VOLUME AS POSSIBLE. Over exposure to excessive sound levels can damage your ears resulting in permanent noise-induced hearing loss (NIHL). Please use the following guidelines established by the Occupational Safety Health Administration (OSHA) on maximum time exposure to sound pressure levels before hearing damage occurs.
90 dB SPL
at 8 hours
95 dB SPL
at 4 hours
100 dB SPL
at 2 hours
105 dB SPL
at 1 hour
110 dB SPL
at ½ hour
115 dB SPL
at 15 minutes
120 dB SPL
Avoid or damage may occur
Note: Use only with the included power supply or a Shure-approved equivalent.
Note: Battery replacement to be performed only by Shure authorized service personnel.
Please follow your regional recycling scheme for batteries, packaging, and electronic waste.
Industry Canada ICES-003 Compliance Label: CAN ICES-3 (B)/NMB-3(B)
Note: Testing is based on the use of supplied and recommended cable types. The use of other than shielded (screened) cable types may degrade EMC performance.
This product meets the Essential Requirements of all relevant European directives and is eligible for CE marking.
The CE Declaration of Conformity can be obtained from: www.shure.com/europe/compliance
Authorized European representative:
Shure Europe GmbH
Headquarters Europe, Middle East & Africa
Department: EMEA Approval
75031 Eppingen, Germany
Phone: +49-7262-92 49 0
Fax: +49-7262-92 49 11 4
The Portable Listening Amplifier is compatible with Android devices that support USB Audio Class 2.0 and Micro-B OTG (On-The-Go) connectivity. Not all Android devices are compatible. Android is a trademark of Google Inc.
"Made for iPod," "Made for iPhone," and "Made for iPad" mean that an electronic accessory has been designed to connect specifically to iPod, iPhone, or iPad, respectively, and has been certified by the developer to meet Apple performance standards. Apple is not responsible for the operation of this device or its compliance with safety and regulatory standards. Please note that the use of this accessory with iPod, iPhone, or iPad may affect wireless performance.
iPad, iPhone, iPod, iPod classic, iPod nano, iPod touch, and Retina are trademarks of Apple Inc., registered in the U.S. and other countries. iPad Air and iPad mini are trademarks of Apple Inc. The trademark "iPhone" is used with a license from Aiphone K.K.
Mac® and Lightning are registered trademarks of Apple Inc.