High Fidelity Portable Music Player w/ Standard Amp Card and Signature Series Professional Monitor Earphones w/ Three-Way Triple Armature Drivers

We apologize

This item has been discontinued

Get FAST answers from customers ASK a Question See questions answers


High Fidelity Portable Music Player w/ Standard Amp Card
Quantity: 1

General Features:

  • State of the art portable audiophile-grade music player
  • Unrivaled sound reproduction thanks to two internal ES9018 32 bit DAC chips
    • Each chip converts digital signals to analog signals for each channel
  • Intuitive on-board controls and user interface
  • Balanced output earphone jack
  • Comes with standard amplifier card
  • Expandable via multiple amp cards including:
    • Balanced card
    • IEM card
    • Minibox card
  • Amplifier cards offer different listening experiences catered to meet different sound preferences
  • Compatible Music Formats:
    • 24 bit: WAV, FLAC, ALAC (MP4)
    • 16 bit: AIFF, AAC, APE (16bit/44.1 KHz & 48 KHz)
  • Frequency Response: 20-20,000 Hz
  • Signal-to-Noise Ratio: 106dB
  • Distortion: 0.008%
  • High quality full color LCD display
  • Memory: Supports up to 128GB SD card
  • Replaceable rechargeable Lithium ion battery
  • Battery Life: Up to 9 Hours
  • Dimensions: 2.83"W x 4.6"H x 1.14"D
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

What's in the Box?

  • HIFIMAN HM-901 High Fidelity Portable Music Player
  • Standard Amplifier Card
  • USB Cable
  • S/P DIF Input/RCA Line Out Cable
  • Charging Cable
  • User Guide

Is this the Player for You?

Check out the HIFIMAN HM-901 User Manual

Note: HiFiMAN products can only be shipped to customers in the United States

Also found as: HM901

Westone UM Pro 30 Clear

Signature Series Professional Monitor Earphones with Three-Way Triple Armature Drivers
Quantity: 1

General Features:

Product Specifications:

  • Frequency Response: 20-18,000 Hz
  • Sensitivity: 124dB
  • Nominal Impedance: 56 Ohms
  • Passive Noise Attenuation: 25dB
  • Cable:
    • Detachable: Yes
    • Cord Length: 50" (1.3m)
  • Plug Size: 3.5mm

General Features

Primary Color
This is the main color of the item.
Secondary Color
A color that compliments the main color of the product.
Voice Recorder Type
This is whether the voice recorder uses a digital or analog system to record the sound.
Type of Player
We have portable players that play either cassettes or CDs- and some that play both! Find the perfect portable audio player for you.
Bluetooth Connectivity
Bluetooth® technology allows two or more electronic devices to communicate with each other wirelessly, such as using your cell phones "hands-free" or transmitting music to Bluetooth enabled receiver. If a unit is Bluetooth capable, it typically can allow you to connect to your Bluetooth cell phone to make and receive calls. Others can access your phone and address book too via Bluetooth. Other Bluetooth capable units offer even more services, such as live traffic information and map upgrades.

More uses of Bluetooth technology include transmitting music to a compatible receiver, printing wirelessly from a computer, and many other wireless uses. Please see the item description for more specific information regarding what features the unit includes.

Bluetooth Range
The maximum distance (measured in feet) that the Bluetooth device can from the paired Bluetooth transmitter.
Built-In Microphone
This will designate if thedevice has a built-in microphone for the recording or transmitting of audio.
Built-In Speakers
This means that the unit comes with speakers already built into the unit.
Does not allow water to pass through the device keeping it dry.

Speaker Specifications

Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
Includes Subwoofer
This means that the speaker system includes a subwoofer.
Speaker Configuration
This is the configuration of the speakers in the home theater system. The more speakers, the more realistic the surround sound is.
Total Watts
This is the total combined wattage of the portable speaker system.


Composite (RCA) Stereo Inputs
This is the number of composite (RCA) outputs on the unit.
3.5mm Stereo Jack
Uses a 3.5mm stereo jack to connect to an audio source. This is the common size found on most CD and Mp3 players, as well as most home computers.
USB Input
This feature refers to whether or not the receiver features an input to connect a USB device via standard USB or mini-USB. The USB input may be a connection on the front or rear of the unit with an extension cable for connecting devices to the receiver. Some units have an optional input that allows for a USB adapter to be purchased separately and used with the unit.

Docking Options

iPod Dockable
This designates if an iPod can be docked the particular device. This feature applies it to home DVD/Blu-ay players, iPod accessories, alarm clocks, and more. When an iPod is docked, it will charge the iPod. Some devices will support the playback of video off of a docked compatible iPod. Some players include a dock or have one built-in, while others require you to purchase it separately.
Charges the iPod
This means that the device provides a charge to the iPod or iPhone.
Compatible Apple Devices
This list refers to the Apple devices that the product is compatible with.

Some Car stereos are compatible with iPods and/or iPhones. If the headunit can connect to an iPod or iPhone via USB or iPod connection cable, these listed iPods are compatible. This list does not apply if the iPod is being connected through the 3.5mm mini-jack plug. Newer iPods are usually compatible if the appropriate adapters are purchased and used.

Any iPods/iPhones released after the release date of this product have not been checked by the manufacturer and/or Sonic Electronix for compatibility. We therefore cannot guarantee their compatibilities or incompatibilities, including, but not limited to: playback, video, charging, and response time.


Power Source
The power source is the method in which the unit receives power. Some units will be powered by batteries, while others will need to be plugged in to an AC or DC power source.
Secondary Power Source
Additional options for the power source.

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating

Hide answersShow all answers | Sort by
No questions have been asked about this item. Be the first!

Product Summary


Model Number




Internal SKU


Internal Product ID


Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: HIFIMAN HM901 + Westone UM PRO 30 CLEAR

Item Added to Cart


High Fidelity Portable Music Player w/ Standard Amp Card and Signature Series Professional Monitor Earphones w/ Three-Way Triple Armature Drivers


Keep Shopping

Get Added Peace of Mind with SquareTrade

Why SquareTrade?

  • The #1-Rated Protection Plan
  • 5-Day Service Guarantee & Free Shipping
  • Protection from Normal, Everyday Use
You have added a warranty
Add Warranty
3 years of protection