The Core Question: Powerhouse Feature Set or Pure, Compact Fidelity?
A portable DAC amplifier is a compact digital-to-analog converter with an integrated headphone amp, designed to upgrade the sound quality of phones, tablets, and computers for high-resolution listening on the go while delivering more power and cleaner output than typical built‑in audio. Both the iFi iDSD GR 2 and Chord Mojo 2 go after the same audience: serious audiophiles who want desktop-level sound in a bag or pocket, not a desk-bound stack. Where they differ is philosophy. iFi turns the iDSD GR 2 into a Swiss Army knife with OLED touchscreen, Bluetooth 5.4, and powerful balanced amplification for IEMs and demanding headphones alike. Chord doubles down on the Mojo 2 as a tiny, wired-first brick of “giant sound potential” with an ultra-simple, button-driven interface. Deciding between them is less about raw performance and more about what kind of listening life you want.
Design, Build and Everyday Usability
On form factor, the Chord Mojo 2 wins portability by a clear margin: “the Mojo 2 being significantly smaller” makes it much easier to carry for strictly wired listening. Its playful, glowing sphere buttons and flowing logo feel almost toy-like, but the experience is intentionally simple: four buttons handle volume, EQ and status, and that’s it. The iFi iDSD GR 2, by contrast, looks like a serious little component. Its refreshed chassis is sleeker than the original Gryphon and slightly heavier, but still compact enough for everyday use. The star is the new OLED touchscreen, which gives direct access to gain, XBass, XSpace and resolution modes while physical side buttons cover volume and quick toggles. The trade-off is risk: the GR 2’s frame feels tougher overall, yet a damaged screen could cripple core functions and push you into the companion app, a shared caveat for anyone rough on gear.
Features: Wireless Freedom vs Minimalist Focus
If features sway your buying decisions, the iFi iDSD GR 2 is the more ambitious portable DAC amplifier by far. It builds around a Burr-Brown PCM1795 DAC, supports PCM up to 768kHz and DSD512, and feeds a fully balanced amplification stage with Class A op-amps, upgraded iEMatch, and up to 1,513mW RMS output for everything from sensitive IEMs to hungry full-size headphones. Add Bluetooth 5.4 with aptX Lossless, aptX Adaptive, LDAC, LHDC/HWA, AAC and SBC, and you get a rare mix of flexible inputs (USB-C, S/PDIF, analog) and strong wireless codec support in one brick. XBass and XSpace let you tune bass heft and perceived soundstage, plus manual resolution modes and high/low gain refine behavior for different pairings. The Mojo 2 counters with a stripped-back but appealing ethos: small size, a wired-first focus, and a straightforward four-button interface for a true plug‑and‑play experience that many listeners will prefer over menus and apps.
Sound Signatures, Power and Battery: How They Actually Listen
Both units are clearly voiced for audiophile use, but they paint music with different colors. Pushed with demanding headphones, the iFi iDSD GR 2 comes across as smooth, powerful and eerily quiet, with upgraded amplification that delivers “high, comfortable gain with a good amount of headroom” while keeping the background dead silent so warmer headphones can show off their separation and depth. The Mojo 2 is framed as offering a “colossal audio feel in a concise package,” carving out its own sonic identity when challenged with power-hungry cans. In practice, the Mojo 2 leans toward a more focused, wired-centric presentation; the GR 2 leans toward customizable, slightly warmer convenience with XBass/XSpace available when you want more punch or space. Battery life is a near draw: iFi rates the GR 2 at up to seven hours, while the Mojo 2 stretches that to about eight, and both use intelligent systems to extend runtime from external power sources.
Which Portable DAC Amp Should You Buy?
This headphone amp comparison is less about declaring a universal winner and more about matching each portable DAC amplifier to the right listener. Both aim at high-resolution audio fans and both are available through specialist audio retailers, but their personalities are far apart. The GR 2 is the forward-looking, feature-heavy choice; the Mojo 2 is the purist’s tiny brick of sound. iFi’s redesign makes the iDSD GR 2 a highly polished Bluetooth device that doubles as a serious wired unit, while Chord’s latest Mojo 2 revision keeps its grip on the market through compact size, simple operation, and commanding sound. The real mistake is buying by brand reputation alone instead of thinking about where and how you listen most. Use the list below as a sanity check before you commit.
- Buy iFi iDSD GR 2 if you want one do-it-all portable DAC amp with Bluetooth 5.4, powerful balanced output and extensive codec support for phones, tablets and computers.
- Skip iFi iDSD GR 2 if you dislike touchscreens or worry about damaging a display that controls many core functions.
- Buy Chord Mojo 2 if you prioritize a tiny, strictly wired device with a simple four-button interface and a big, engaging sound in the smallest footprint.
- Skip Chord Mojo 2 if you expect integrated wireless; adding Bluetooth requires a separate module and extra hardware fuss on top of the base unit.
- Buy either only if you care about serious, high-resolution listening on the go; both target committed audiophiles rather than casual background listeners.
