Naim NAC 112 - Preamp. Entry-level preamp from the Olive-to-Classic transition era (early 2000s). Designed with 6 DIN inputs (some with RCA adaptors), remote control, and upgradeable power supply. On its own, it needs to be powered by either a Naim power amp (like the NAP 150) or a dedicated PSU (like the Flatcap 2).
Solid performer, quite neutral, fast, and rhythmic-typical Naim PRaT (Pace, Rhythm and Timing). Naim NAP 150 - Power Amp. Delivers 50 watts per channel into 8 ohms, but with Naim's characteristic grip and authority-sounds bolder than the numbers suggest. Based on earlier designs like the NAP 90/92 series but beefed up and refined. Powers the NAC 112 via a 4-pin DIN connection, unless you're using an external PSU like the Flatcap.Sweet spot when paired with bookshelf speakers with good sensitivity. Naim Flatcap 2 - Dual Power Supply. Designed to improve performance by giving cleaner, separated power to both the NAC 112 and source components (like a CD5 or a phono stage).
Contains two 24V regulated power rails, allowing it to power two low-current Naim components simultaneously. Big impact on sound-adds clarity, dynamics, and space. Most noticeable when the NAC 112 is powered directly by it rather than piggybacking off the NAP 150. NAC 112 + NAP 150 is a capable system, but.
Adding the Flatcap 2 takes it up a notch-tighter bass, better dynamics, more expansive imaging. The stack is a great intro to the Naim "upgrade path" philosophy-each component is built to be modular and improve in performance as you add better power supplies or source gear.