Pure Class A Performance:Designed to stand out among high-performance Headphone Amplifiers, the Matrix Audio NA-1 serves as the dedicated analogue foundation for the N-Series stack. Operating as a pure Class A, fully balanced headphone amplifier and preamplifier, the Matrix Audio NA-1 uses an all-discrete circuit powered by high-voltage ±30 V power rails. This architecture maintains complete control over demanding headphone loads, delivering clean dynamics and low-noise operation for listeners who want a dedicated analogue stage after their digital front end.Versatile Desktop Control:With four independent amplification paths, the Matrix Audio NA-1 delivers up to 18 W into 33 ohms and 4.5 W into 300 ohms through its balanced outputs. This generous power reserve easily drives full-size planar magnetic models and high-impedance dynamic headphones without clipping or distortion. Matching XLR and RCA inputs alongside preamp outputs allow the Matrix Audio NA-1 to seamlessly control active desktop speakers or external power amplifiers. The solid aluminum chassis provides electromagnetic shielding and heat dissipation during extended listening sessions.Authorized Dealer:We are an authorized dealer for Matrix Audio, providing dedicated support and expert advice throughout your ownership experience. Purchasing from a trusted brand partner ensures your Matrix Audio NA-1 is covered by the full manufacturer's warranty, offering total peace of mind. Discrete Class A Circuitry: Provides linear power delivery and precise control across all volume levels. High Output Power: Drives demanding planar magnetic and high-impedance headphones up to 18 W. Preamplifier Flexibility: Controls active speakers or power amplifiers directly via balanced XLR and RCA connections. High-Voltage Power Rails: Maintains clear headroom and dynamic impact during complex musical passages. Machined Aluminum Case: Offers effective heat management and shielding against electromagnetic interference. Technical Specifications Circuit Architecture: Fully balanced, all-discrete Class A Power Supply Rails: ±30 V high voltage Balanced Output Power: 18 W @ 33 Ω, 4.5 W @ 300 Ω Headphone Output Connectors: 4-pin XLR balanced, 4.4 mm balanced, 6.35 mm single-ended Analogue Inputs: XLR balanced, RCA single-ended Preamplifier Outputs: XLR balanced, RCA single-ended Chassis Finish: Precision machined aluminum