Headphones amplifiers — Matrix Audio NA-1

The NA-1 is a headphone amplifier from Matrix Audio, sharing matching chassis dimensions with the brand's ND-1 DAC for a visually coherent stack. The NA-1 brings Matrix Audio's exceptional measured-performance philosophy to dedicated headphone amplification with genuinely substantial output.

Key specs that matter

Maximum power reaches 7,000mW single-ended or a staggering 18,000mW balanced into 32 ohms - genuinely extraordinary figures capable of driving virtually any headphone to considerable volume. Into 300 ohms, output remains substantial at 1,100mW single-ended or 4,500mW balanced, and even into a demanding 600 ohms, output reaches 580mW single-ended or 2,300mW balanced. Gain is switchable between +15dB and +21dB. Total harmonic distortion is an exceptionally low under 0.0003% at 1V RMS into 300 ohms, with signal-to-noise ratio at 121dB and crosstalk at -134dB. At 330 x 275 x 97mm and 6.16kg, the NA-1 represents genuinely serious headphone amplification.

Sound and use context

Expect exceptional power delivery combined with near-immeasurable distortion figures - the NA-1's balanced output can drive genuinely any headphone on the market, from the most sensitive in-ear monitors to the most demanding planar magnetic designs, with considerable headroom to spare.

Pairing

The switchable gain settings and extraordinary power across 32, 300 and 600 ohm loads mean the NA-1 handles virtually any headphone impedance and sensitivity combination, and it pairs naturally with Matrix Audio's own ND-1 DAC for a matched digital source and amplification stack.

Alternatives

Matrix Audio's broader headphone amplifier catalogue offers alternatives for buyers wanting a different balance of features within the same exceptional measured-performance philosophy. Recommended overall for buyers seeking genuinely extraordinary headphone amplification power and measured cleanliness. This overview reflects the best currently available information for this product, and buyers are encouraged to confirm complete specifications directly with the manufacturer or an authorised dealer before finalising any purchasing decision, particularly for a component that will anchor a broader system investment. Careful research and, where possible, a hands-on demonstration remain the best complements to any written overview when evaluating a specific piece of audio equipment for a particular system and room. Ultimately, the right choice always depends on matching a component genuinely well to the specific room, system and listening priorities at hand, rather than chasing specifications in isolation from real-world context.