Product Strengths

• Improved battery management offering faster charging rates and better efficiency than its predecessor
• Features a new USB-C data input for greater flexibility alongside other inputs
• Offers the world's first lossless DSP for tone adjustments without degrading sound quality, providing customization options
• Excellent resolution and dynamics with a large soundstage and extreme detail

Product Considerations

• The Mojo 2 can get warm when in a pocket for a period of time
• Complicated menu navigation with color-coded buttons that may require the manual
• Still uses Micro-USB for charging, which some find outdated

Takeaway: The Chord Mojo 2 is an exceptional DAC/headphone amplifier for those seeking high-resolution audio and customized sound in a portable format that is easy to move. Its sonic accuracy, detailed soundstage, and improved features provide a versatile and enjoyable listening experience, making it a worthwhile consideration for audio enthusiasts.

Product Strengths

• Versatile connectivity with both wireless (Bluetooth 5.1 with various codecs) and wired options (USB, S/PDIF, analog inputs) makes it suitable for various setups—from desktop to portable usage
• Eloquent, informative, and entertaining sound quality, able to produce clear, non-artificial sound across different headphones
• Features such as XBass II and XSpace provide additional sound shaping options for the user to customize the sound to their liking
• The aluminum build provides a robust and premium feel, with a design that's described as sleek and comfortable to handle

Product Considerations

• The user interface is not very intuitive
• Decent headphones are needed to reveal its quality
• The OLED screen can be difficult to read
• Battery life is around six to eight hours

Comparisons (according to reviewers)

• Compared to the hip-dac2, the Gryphon offers better sound quality, more features, and flexibility
• Compared to the iFi GO bar, the Gryphon is bigger and has a built-in battery, and the GO bar is much smaller and draws power from the source device
• Compared to the iDSD Diablo, the Diablo has more power for very demanding headphones, Gryphon has more functions
• Compared to the Zen DAC, the xDSD Gryphon has a more sophisticated and detailed sound

Takeaway: The iFi xDSD Gryphon is a portable and versatile device delivering high-quality sound with extensive features that cater to audiophiles. Its ability to improve sound quality from various sources and its robust build make it a worthwhile investment for music lovers on the go.

Product Strengths

• Punchy and musical performer
• BluOS is a treat to operate
• Convenient design as a source and amplifier in one, only needing speakers to complete the system
• Engagingly musical performer—dynamically fluid and punchy, with plenty of energy
• More neutral sounding now, making gains in clarity and insight across the frequency range
• Connectivity options are through 3.5mm headphone-type connectors, shared with mini-TosLink connections

Product Considerations

• Tough competition from other streaming amplifiers
• No way to send data out to an external DAC
• The Powernode was occasionally hard on transients and dynamic bursts
• There is no included remote

Comparisons (according to reviewers)

• The Marantz has a wider-scale, roomier soundstage and greater subtlety

Takeaway: The Bluesound Powernode is a superb streaming amplifier that is better than ever, offering excellent sonic talent and a well-rounded feature set. It provides a convenient and high-quality music experience for anyone looking to simplify their home audio setup.

Product Strengths

• Fully balanced technology, with balanced inputs and outputs.
• Delivers powerful amplification, with up to 7.5 watts of power, capable of driving a wide range of headphones, including hard-to-drive models.
• Features a linear power supply with a large transformer and capacitor bank, providing a stable and powerful power source.
• Provides two current modes (50mA and 100mA) to tailor the sound tonality, allowing users to choose between a more forward/analytical sound and a warmer/fuller sound.
• Employs an R2R network for volume control, ensuring channel balance even at low volumes.

Product Considerations

• Runs quite hot due to its Class A amplification, requiring adequate ventilation, with chassis temperatures potentially reaching up to 50 degrees Celsius, and the unit may switch from 100mA to 50mA mode if it overheats.
• High power output might not be ideal for very sensitive IEMs, potentially limiting volume control flexibility.
• The preamplifier output is always active, meaning it doesn't mute when headphones are plugged in, requiring caution to prevent damage.
• The LCD display cannot be dimmed or switched off, and the red color of the 100mA mode may appear washed out.
• Some report volume slots are not regular or have large jumps, and/or that the remote control can be buggy.

Comparisons (according to reviewers)

• Vs. Topping A90 Discrete: The S17 has a richer sound, wider soundstage, and easier dynamics, especially in 100mA mode, placing it in a higher tier.
• Vs. Topping A90D: The S17 Pro is capable of even stronger dynamic swings, with a slightly cleaner and less cluttered soundstage.
• Vs. Violectric V222: The Aune S17 Pro is more 'tubey' and warmer sounding than the V222.
• Vs. HIFIMAN EF600: The Aune S17 has better volume control, higher dynamic range, better driving power, and better resolution.

Takeaway: The Aune S17 Pro is a powerful and versatile headphone amplifier that delivers rich, detailed sound, allowing listeners to experience music in new ways. With its balanced design and flexible current modes, it can enhance a wide range of headphones and audio setups.