IOM NCore I bought an IOM ULTRA to test out for a friend who has a WiiM Ultra. When I connected the IOM ULTRA to my setup, I immediately knew I had to have one for myself. However, I personally preferred the IOM NCore's shape, and both amps use the same HYPEX nc252mp module – I assumed there would be no difference sonically, and I was right. My IOM is paired with a WiiM Pro Plus and a Falcon Acoustics LS3/5a (8 Ohm). I previously used a hybrid tube amplifier with NOS tubes. I loved that setup, but reading about Class D amps, I saw many positive reviews about them, and I decided to give them a try – you can always return or resell them. It was a bull's-eye! My Falcons are finally sounding as they should. At the lowest volume of the source (WiiM), during quiet, late-night listening sessions, I can hear every detail, and musical accents can still hit the ear! It's amazing! The IOM does a fantastic job! Every sound now sounds PHENOMENAL! The music is full of detail, the soundstage is wide and deep, and the holography is perfect. Each track sounds as if it were composed of separate sounds/instruments assembled into a perfect, highly melodic whole! The lows are very saturated, yet perfectly controlled! They hit exactly where they need to...WOW! I don't know much about electronics and I don't know what dark magic lies behind all this, but every day for the past month and a half, I've been listening to every genre of music with immense delight, and everyone who visits me has different body parts playing along with the music, and everyone immediately notices the difference. Even though the amplifier is hidden, they know something has changed – in this place, IOM never overly gets warm. The amplifier's build quality is perfect! A solid piece of metal that delivers plenty of very dense energy to my speakers, yet effortlessly. There's a huge power reserve! Despite the Falcons' 82 dB efficiency, the IOM drives them effortlessly. In a 16m² room, I can only use a maximum ~20-30% of the IOM's power! IOM - for such a small price, I've gained so much that I'm set for many years, if not forever! A big thanks to Sipko, with whom I exchanged a lot of information while deciding which IOM to choose. If anyone's still wondering, don't hesitate. Yes, I know it could definitely be even better (I am sure about that), but in the future, I'd primarily work on the acoustics (something many forget), and if I change anything, I'll just go with the IOM monoblocks! Thank you, 'InternetOfMusic,' for bringing so much joy to my life with your product! Cheers...