Description Naim NAP 500 DR Power Amplifier The Naim NAP 500 DR Power Amplifier us their flagship Statement amplification system that was ten years in the making. The research and development project drew on all of our knowledge and expertise, yielding several breakthroughs in technology. We’ve recently introduced two new technologies from the Statement project to our core range of power amplifiers. The NAP 500 now features the new NA009 transistors first introduced in Statement. In development for over a year, this key component was created in partnership with a specialist semi-conductor manufacturer to achieve the best possible sound quality. The 500 also includes the high power Naim Audio DR (Discrete Regulator) technology used in Statement to provide the smooth, stable power supply we know is critical for the audio electronics to make music come to life. These two new technologies, combined with other small improvements to layout and componentry, mean the NAP 500 DR can produce even more of the fundamental musical pace, rhythm and timing that made the originals so popular with music lovers. View User Manual >> View Connection Guide >> View Naim Products >> FAQ’s What is the Naim NAP 500 DR and what does it do? The Naim NAP 500 DR is a high-end stereo power amplifier that takes a line-level signal from a preamplifier and amplifies it with high current and power to drive loudspeakers with authority, detail and dynamic precision. It doesn’t select sources or control volume, it’s purely dedicated to clean, powerful amplification. How much power output does the NAP 500 DR provide? The NAP 500 DR delivers approximately 140 watts per channel into 8 ohms and is capable of prolonged output into lower impedances (e.g., 2 ohms) without performance degradation, meaning it can handle demanding loudspeakers with ease. What technology helps the NAP 500 DR achieve better sound quality? It uses Naim’s DR (Discrete Regulator) power-supply technology and custom NA009 output transistors derived from the company’s flagship Statement range. This combination enhances power stability, pace, rhythm, timing and low distortion, contributing to a more engaging and natural musical performance. Why does the NAP 500 DR have a separate power supply? The amplifier uses a two-box configuration, with the main amplifier and a dedicated 500 PS external power supply. Separating the power supply from the audio circuitry reduces electromagnetic interference and noise, resulting in cleaner power delivery and improved detail and dynamics. What does the NAP 500 DR not do? The NAP 500 DR doesn’t: Select audio sources or control volume (that’s the preamp’s job). Process digital formats or stream music (those tasks require separate components). Include tone controls or EQ – its focus is pure amplification with minimal coloration. Features 140W per channel output into 8 ohms; capable of prolonged output into 2 ohms with no discernible impact on performance Bridged power amplifier configuration for maximised open and closed-loop speed, with ten stages of local regulation per channel Two-box configuration with 500 PS power supply for optimum rejection of electromagnetic interference 1,100VA toroidal transformer provides 12 raw DC supplies for the power amplifier 25kg brushed, black-anodised chassis with distinctive heatsink plus variable speed intelligent fan system for discreet extra cooling if required Technology & Craft The NAP 500 delivers 140W per channel into 8 ohms and is capable of prolonged output into 2 ohms with no discernible impact to performance. Its two box configuration is classic Naim Audio, with the power supply completely removed to the separate 500 PS power supply for ultimate performance. Each channel of the NAP 500 includes ten stages of local regulation. To reduce interference from the mains supply further, the transformer and first stages of the power supply are in a separate enclosure, the 500 PS, which provides twelve raw D.C. supplies for the power amplifier. A bridged configuration allow for maximised open and closed loop speed, less intrusive protection circuitry and reduced interaction between input and output signals as the very high drive currents to the loudspeaker do not flow through the system earth. The NAP 500 also features the new output transistor, the NA009, specifically designed for the purpose through months of collaborative work with a specialist supplier. The circuit topology has been developed to maximise bandwidth and reduce distortion and power supply dependency. Also, special attention has been paid to reducing thermally-induced noise, an especially important consideration in power amplifiers. Specifications Input Impedance: 18kΩ Analogue Input: 2 x XLR Minimum Load Impedance: 2Ω Frequency Response: -3dB at 1.5Hz and 100kHz Gain: 30dB Case: Brushed and black anodised Front: Brushed and black anodised Shipping Weight: 28.2 kg Shipping Dimensions: 270 x 570 x 520 mm Weight: 25 kg Dimensions (HxWxD): 160 x 432 x 374 mm Mains Supply: 100V, 115V, 230V; 50 or 60Hz Power Supply Options: 500PS Power Output: 140W/channel, 8Ω Transient: 700VA Speaker Outputs: L & R, 4mm “banana” sockets Supplied with: 500PS, Power-Line, Burndy
