HM901R User Guide
Welcome Thank you for purchasing the HM901R Portable DAC(Bluetooth & USB-C) Please read this quick guide before using the HM901R.
Table of Contents Quick start 02 HIFIMAN APP remote play mode 03 Product Overview 04 Operation 05 Interface 10 4.
Quick Start Bluetooth Direct Connection 1. Press and hold the power button for 3 seconds to turn on, confirm that the Bluetooth LED on the front panel is working normally (i.e. blue light flashes); 2. Connect to earphone or headphone; 3. Search and connect to HIFIMAN-HM901R on your mobile phone or other Bluetooth device; 4. Play music on your mobile phone and begin enjoying high-definition music over Bluetooth.
HIFIMAN APP remote play mode The HIFIMAN APP can already be found in the Apple App Store, and Apple mobile phone users can download and use it directly. For Android phone users, please contact the official customer service, or download the latest version of the APP from the service section of the official website.
Product Overview Lock/Unlock Blutooth LED * TF Card LED USB DAC LED TF card slot Power on/ Power off/Play/Pause Input choice Output choice Gain Choice Charging Button Volume Control 4.4mm 3.5mmSingle/ 3.5mm Balanced Balanced Line Out Output Output Gain LED Type-C USB Socket Charging LED Output LED *Important: When the TF Card LED is shining, please do not put off the TF card.
Operation Power / Play / Pause Button 1. Long press for 3 seconds to turn on/off. 2. Long press for 10 seconds to force restart. 3. Using the HIFIMAN APP, a short press will act as play/pause. * It is recommended to insert the microSD card first before powering up the HM901R. When no card is inserted the HM901R will add a delay when powering as it“searches” for a card. Volume Dial 1. Rotate the volume dial clockwise to increase the volume.
Operation Output selection key 1. When powering on for the first time, the default output jack is the 3.5mm headphone balanced output. When selected, the 3.5mm Output LED will be green; 2. Click the output selection button to change output ports in sequence. Press the button once to switch to 3.5mm earphone single-ended output. When selected, the 3.5mm Output LED will be blue; 3. Press the button again to switch to 4.4mm headphone balanced output. When selected, the 4.4mm Output LED will be green; 4.
Operation Input Selector 1. When turned on the input defaults to Bluetooth mode, The Bluetooth status light on the main panel flashes blue when pairing, then constant when connected 2. After connecting a USB cable to the HM901R, click the input selection button to switch to USB DAC mode. After the switch the USB DAC status light will be steady green. Click the input selection button again to return to Bluetooth mode; Gain Selection Please refer to the Gain LED on top of the HM901R.
Operation Removable Back Cover Gently push the back cover down to unlock the back cover. Align the back cover with the slide rails on both sides from the bottom of the body. Push up from the bottom in parallel to close. Open the back cover to change the amplifier card. In order to customise for different headphones, earphones and customers, HIFIMAN provides a variety of amp cards to choose from.
Operation Charge Button 1. Connect USB charging cable to a power supply device to begin charging. The charging status LED will be red. The LED will turn green when fully charged; 2. Press the charging button once and HM901R will switch to non-charging mode. In this state, the charging status LED flashes red and green alternately; 3. When the battery is low, the charging status LED will flash red. If the battery is too low, the HM901R will shut down.
Interface Type-C Interface Use a Type-C USB cable to connect to 1. a computer for data transfer/delete; 2. a power source for charging; 3. computer or mobile phone for USB DAC functionality. Note, your mobile phone is required to support USB AUDIO and OTG to be compatible. Headphone Jack / Line Output 1. Equipped with 3.5mm and 4.4mm headphone outputs, Use with headphones with 3.5mm or 4.4mm jacks; 2. The 3.
4.4mm Balanced Line Output Wiring Specifications 4.4mm balanced Plug schematic is as follows: 19.5mm L+ L- R+ R- GND For 4.4mm Balanced to dual XLR connections, the balanced output should be as wired as follows: 19.
4.4mm Balanced Line Output Wiring Specifications 4.
4.4mm Balanced Line Output Wiring Specifications 4.4mm balanced to dual mono 6.
4.4mm Balanced Line Output Wiring Specifications 4.4mm balanced to dual stereo 6.
4.4mm Balanced Line Output Wiring Specifications 4.4mm balanced to single-ended 3.
4.4mm Balanced Line Output Wiring Specifications Please note: Do not use an ungrounded connector as prolonged use may damage the HM901R.
DAC USB DAC Connect the Type-C USB cable to a computer or phone to enable the USB DAC function. Your phone must support the USB AUDIO and OTG function. For iOS devices, we recommend connecting a Lightning cable to a USB Camera Converter. (Lightning to USB3 Camera Converter. Type-C to Lighting cables cannot be used. Please use Apple’s Type-C to Type-A adapter when connecting to MAC.
DAC Type-C Type-A Type-A 18 Lightning
DAC USB DAC Driver For MAC there’s no need to install the driver. This driver supports Windows XP to Windows 10. Driver installation and usage: 1. Please go to HIFIMAN’s Official website(www.hifiman.com)→Service and support→ Driver, and download the HM901R driver. 2. Unzip the compressed package, select the driver and continue to install the driver. 3. Use a type-C USB data cable to connect the HM901R to the computer. 4. Set the HM901R to USB DAC mode. 5.
Specifications Size (L*W*H): 109.7mm*60mm*18mm Weight: 125g Charging time: 1.5 hours Battery life: 9 hours (classic card, varies with amp card) Micro SD card maximum support: 1TB/FAT32 Output mode: 3.5mm single-ended, 3.5mm balanced, 4.4mm balanced, 3.5mm line output Bluetooth protocol support: LDAC, aptX-HD, aptX, AAC, SBC 3.5mm Line Output Parameters Frequency response: 20Hz-20kHz Distortion: 0.
Supported Music Formats WAV FLAC ALAC APE 16bit 44.1kHz √ √ √ 16bit 48kHz √ √ 16bit 88.2kHz √ 16bit 96kHz 16bit 176.4kHz AIFF (aif-f) DFF DSF √ √ - - √ √ √ - - √ √ √ √ - - √ √ √ × √ - - √ √ √ × √ - - 16bit 192KHz √ √ √ √ √ - - 24bit 44.1kHz √ √ √ √ × - - 24bit 48kHz √ √ √ √ × - - 24bit 88.2kHz √ √ √ √ × - - 24bit 96kHz √ √ √ √ × - - 24bit 176.4kHz √ √ √ × × - - 24bit 192kHz √ √ √ × × - - 1bit 2.
Safety Instructions Warning 1. Do not expose the player to water or other solvents. 2. Do not expose the player to humidity, dust, smoke and other harsh conditions. 3. A suitable operating temperature environment should be between -6℃ To 40℃. Storage should be at normal room temperature. 4. Do not use any chemicals or detergents to clean the player. 5. Do not use while driving or operating motorized vehicles. 6. If you experience physical discomfort, please discontinue use and consult your audiologist.
Safety Instructions Disposal and Recycling The disposal of your player should be separated from household waste because the player contains electronic parts a and battery. When your player reaches the end of its life, please contact your local environmental department for disposal and recycling information or you could simply send it back to us. The battery will be removed and properly recycled.
FCC Warning This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE 1: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
FCC Warning - Increase the separation between the equipment and receiver. - Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. - Consult the dealer or an experienced radio/TV technician for help. NOTE 2: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
Warranty & Customer Service HIFIMAN warrants this product to be free of defects in material or workmanship for a period of one year from the date of original retail purchase. If your product is found to be defective during the warranty period, HIFIMAN will, at its sole option, either repair the product or replace the product with a new or factory reconditioned or substantially equivalent model.
Warranty & Customer Service This Limited Warranty does not apply to : 1. Defective or discolored parts if damage is caused by fluids, dirt, missing keys, broken plastic parts or improper use. 2. Damage caused by misuse with another product. 3. Use of the product for other than its normal intended use, including, without limitation, failure to use the product in accordance with the supplied Owner’s Guide. 4. Damage caused by accident, abuse, neglect or misuse. 5.
Warranty & Customer Service from us) and explain the issue in detail. Should a return be required, a Return Authorization will be issued. Return shipping to HIFIMAN or authorized service facility will be at the owner’s expense. The warranty applies to the first purchaser and is not transferable. For further information, please contact your authorized HIFIMAN dealer or email us directly at customerservice @HIFIMAN.com.
