[0.8 lb] Small, yet powerful. Bass boost and gain work as advertised. Doesn't heat up. Comfortably drives my headphones between 11 and 1.

On some Rock/Metal songs with boost and gain, some vocals and distorted guitars will become indistinguishable.

With boost and gain nearly all EDM and Pop are sublime.

All of this is through Hifiman Edition XS.
I own and have compared this to both the Fiio BTR 7 and Shanling H2.

Having purchased this i see no need to purchase any other Ifi product

[2x AA] I was surprised how well this sounds for the price. It is a great way to listen to Apple Music in High Res, as it is compatible with iOS. I use the Lighting to USB 3 Type-A Camera adapter. Highly recommended.

[0.8 lb] I got this to use in the field, being battery operated is great. I haven’t had any problems with hiss. I also use a power block to run it.

[2x AA] About as good as it gets for a microphone preamp. It's worth it to get this or the EC1 as a front end for your recording setup if you're in the market. The headphone mixing makes it perfect: That way you never really have to worry about buffer or latency settings in your interface. Plenty of power for all headphones (more than I've ever heard in any recording interface!) and quite clean too. (Almost too powerful for IEMS though! - it works but you may need to turn things way down though)

If you look up reviews/specs: it measures really well: you can't do any better for a clean preamp or DI. I've never been a fan of tube pres or transformer pres: but if you want that sound: the Mojo actually gets that type of sound but better anyways if you want 'tone'. (I simply just never switch it on)

The external power supply I'm not a fan of: I'd happily pay a bit more for a larger chassis and internal power supply. It's just one of those: if your cable breaks or you run it over with a chair or the pins get damaged - a replacement may not be easy to find and if you have something important to record and need to wait a week or months if this is your only preamp - that may not be what you want.

I'd suggest first buying a DPA or earthworks mic or another SDC that works great on vocals and any instrument: they make the biggest difference. Then interface as most interface preamps are pretty clean - and then one of these after that. These have more headroom and just sound a bit less compressed than most other preamps (easier to hear with IEMS) but a microphone and placement is obviously more important. Though the 0 latency headphone monitoring might actually be quite important too - to make sure you get a good take?

Either way - the EC1 or EC2 are great!

[4-Channel] Great sound from a tiny package. USB powered, no wall wart or power cable needed. Head phones and powered speakers work fine with it. Perfect for videos and music from PC.

[4-Channel] The iFi hip-dac 3 is an exceptional portable DAC/amp that delivers a warm, rich sound profile perfect for audiophiles on the go. Its ability to produce a full-bodied sound with deep, impactful bass and smooth mids makes it a standout choice for those who appreciate a lush, immersive listening experience. The warm tonal quality enhances vocals and instruments, giving them a natural and engaging presence that draws you into the music.

One of the hip-dac 3's most impressive features is its powerful amplification. Despite its compact size, this device can drive demanding headphones with ease, delivering loud, distortion-free audio that remains clear and dynamic even at higher volumes. Whether you're using high-impedance headphones or sensitive in-ear monitors, the hip-dac 3 ensures you get the best possible performance.

[4-Channel] I had to replace my ageing Prospect amplifier after it failed to work during a live shot. The Prospect company no longer exists, so I was in a bit of a spot, but the JK ampflier was recommended by a colleague. I can only pass on that recommendation: solidly built, a neat little recessed on/off switch is exactly what I want, a battery-level light that shines bright (I always found the Prospect battery-level light to be rather ambiguous), and a big fat audio-level knob that even the most naive journalist can master! I love it!

[24 dB ] The Zoom U-24 portable audio interface is easy to use with any DAW. The two inputs take XLR & 1/4 inch male plugs so you can record two electric guitars, or acoustic guitars, or one of each, or one with vocal at once. Also has midi in & out & headphone monitor. Very portable. Great for the price.

[4-Channel] I got this today and it works great with my cell phone, it even came with a 3.5mm to 3.5 mm cable for cellular use...I was surprised..also do yourself a favor..install the gain jumpers as stated in the directions..it will give you more audio on a noisy day. HTH