As audio editor, I’m lucky enough to get to try out all manner of headphones in all kinds of shapes and sizes, from the Sony WH-1000XM5 headphones to the recently launched Bowers & Wilkins Px8 flagship headphones (pictured), which both facilitate wired and wireless connectivity, to wired-only in-ear monitors like the Sennheiser IE 600.  Although I spend a lot of time listening to music using an iPhone connected to whatever pair of wireless headphones or earbuds I’m reviewing, for personal listening I’ve recently found myself gravitating to wired headphones to keep me grounded to what a non-compressed audio signal sounds like on a pair of headphones free from digital signal processing.  Listening to music on the move through wired headphones is not as straight forward as it once was. Of course, using an iPhone (or almost any smartphone) as a music playback source is tricky in the wireless world that emerged since Apple dropped the headphone jack from the iPhone 7 in 2016. But there are a bunch of portable devices out there called DACs that can bring considerable audio gains to any modern digital playback device with a port. And I’ve been getting myself acquainted with a next-gen model that’s been boosting my music listening experience on-the-go.

DAC magic

It’s something of an adjustment getting reacquainted with a cabled music system after the freedom that wireless connectivity brings, but any mild inconvenience is worth it and the audio benefits speak for themselves. Music sounded richer and more natural without any boost to enhance particular frequencies, although the Mojo does have EQ adjustment if you really must tinker with the frequency balance. The soundstage felt more solid with vocalist clearly placed at the center of the music creating an almost physical, three-dimensional sonic image in my head, and instruments just sounded cleaner and far more real than anything I’d heard using the same pair of headphones connected wirelessly. The Mojo 2 simply lets your headphones and whatever music you’re listening to sing.    As hi-res audio becomes the norm with the likes of big players including Apple Music and Spotify HiFi (although delayed) bringing lossless audio to the masses, the appeal of an add-on DAC that can do sonic justice to the high-quality audio files is more appealing than ever. And it can improve the sound of compressed music streams, too.

What is a DAC?

Don’t worry if you’ve never heard of a DAC; you’re not alone. Simply put, a DAC is a ‘digital-to-analog convertor,’ which as the name suggests, means it takes a digital audio signal (from the likes of a music streaming service, say) and converts it to an analog one.  You see, it’s analog signals, not digital ones, that drive the speakers inside the audio device you’re listening on. So some form of conversion has to happen between the audio signal served up by whatever digital music file you’re playing and the analog-driven speakers that produce the sounds that arrive at your ears.  DACs are found in all kinds of audio playback devices, including the best laptops, and best tablets, but adding a standalone DAC will always help it sound better.  You may wonder why this is the case when surely the digital signal conversion is expertly taken care of by the DAC inside whatever playback device you have your headphones plugged into. The thing is, music doesn’t always sound as good as it could through the built-in DAC on many devices, and adding a quality DAC like Chord’s Mojo 2 will result in a better audio experience for quality audio fans and music lovers alike.

I just tested the best iPhone audio upgrade ever - 77

title: “I Just Tested The Best Iphone Audio Upgrade Ever” ShowToc: true date: “2022-12-15” author: “Rosa Morrison”


As audio editor, I’m lucky enough to get to try out all manner of headphones in all kinds of shapes and sizes, from the Sony WH-1000XM5 headphones to the recently launched Bowers & Wilkins Px8 flagship headphones (pictured), which both facilitate wired and wireless connectivity, to wired-only in-ear monitors like the Sennheiser IE 600.  Although I spend a lot of time listening to music using an iPhone connected to whatever pair of wireless headphones or earbuds I’m reviewing, for personal listening I’ve recently found myself gravitating to wired headphones to keep me grounded to what a non-compressed audio signal sounds like on a pair of headphones free from digital signal processing.  Listening to music on the move through wired headphones is not as straight forward as it once was. Of course, using an iPhone (or almost any smartphone) as a music playback source is tricky in the wireless world that emerged since Apple dropped the headphone jack from the iPhone 7 in 2016. But there are a bunch of portable devices out there called DACs that can bring considerable audio gains to any modern digital playback device with a port. And I’ve been getting myself acquainted with a next-gen model that’s been boosting my music listening experience on-the-go.

DAC magic

It’s something of an adjustment getting reacquainted with a cabled music system after the freedom that wireless connectivity brings, but any mild inconvenience is worth it and the audio benefits speak for themselves. Music sounded richer and more natural without any boost to enhance particular frequencies, although the Mojo does have EQ adjustment if you really must tinker with the frequency balance. The soundstage felt more solid with vocalist clearly placed at the center of the music creating an almost physical, three-dimensional sonic image in my head, and instruments just sounded cleaner and far more real than anything I’d heard using the same pair of headphones connected wirelessly. The Mojo 2 simply lets your headphones and whatever music you’re listening to sing.    As hi-res audio becomes the norm with the likes of big players including Apple Music and Spotify HiFi (although delayed) bringing lossless audio to the masses, the appeal of an add-on DAC that can do sonic justice to the high-quality audio files is more appealing than ever. And it can improve the sound of compressed music streams, too.

What is a DAC?

Don’t worry if you’ve never heard of a DAC; you’re not alone. Simply put, a DAC is a ‘digital-to-analog convertor,’ which as the name suggests, means it takes a digital audio signal (from the likes of a music streaming service, say) and converts it to an analog one.  You see, it’s analog signals, not digital ones, that drive the speakers inside the audio device you’re listening on. So some form of conversion has to happen between the audio signal served up by whatever digital music file you’re playing and the analog-driven speakers that produce the sounds that arrive at your ears.  DACs are found in all kinds of audio playback devices, including the best laptops, and best tablets, but adding a standalone DAC will always help it sound better.  You may wonder why this is the case when surely the digital signal conversion is expertly taken care of by the DAC inside whatever playback device you have your headphones plugged into. The thing is, music doesn’t always sound as good as it could through the built-in DAC on many devices, and adding a quality DAC like Chord’s Mojo 2 will result in a better audio experience for quality audio fans and music lovers alike.

I just tested the best iPhone audio upgrade ever - 50