Matrix Audio NA-1 Headphone Amplifier

Matrix Audio NA-1 Pure Class A Headphone Amplifier

Unleash pure analog power and refinement with the Matrix Audio NA-1 — a flagship fully balanced Class A headphone amplifier engineered for uncompromising performance and versatility.

The NA-1 delivers massive output through four independent, fully discrete balanced amplification stages, providing up to 18W into 33Ω balanced (or 7W single-ended) with exceptional current delivery and a high damping factor for precise control across any headphone impedance. Its pure Class A operation ensures rich, effortless musicality with ultra-low distortion and outstanding dynamics.

Designed as both a dedicated headphone amplifier and a high-performance preamplifier, the NA-1 features selectable gain (+17/+23 dB for headphones, +15/+21 dB for pre-out), a robust linear power supply with toroidal transformer and large capacitor bank, plus independent regulation for voltage and current stages. The result is a clean, quiet, and authoritative soundstage with open highs, textured mids, and solid, well-defined bass.

Connectivity includes one balanced XLR and two single-ended RCA inputs for multiple analog sources, with outputs offering 6.35 mm single-ended, 4.4 mm balanced, and 4-pin XLR balanced headphone jacks, plus XLR and RCA pre-outs for powering speakers via an external amplifier. Trigger in/out adds seamless system integration.

The compact yet substantial chassis houses premium components for reference-level transparency and drive, making the NA-1 ideal for demanding planar magnetic or low-impedance headphones while doubling as a transparent preamp in two-channel systems.
From critical listening sessions to everyday enjoyment, the Matrix Audio NA-1 brings pure Class A warmth, power, and precision to your headphones or speakers.

For assistance or product questions, call 443-402-5055 or text 443-402-5064 to reach our team. All Elite Audio is an authorized dealer for Matrix Audio and operates a full home audio showroom.

Key Specifications

• Amplifier Type: Fully balanced Class A
  
• Headphone Output Power (Balanced): 18 W @ 33 Ω, 4.5 W @ 300 Ω, 2.3 W @ 600 Ω (1% THD)
  
• Headphone Output Power (Single-Ended): 7 W @ 33 Ω, 1.1 W @ 300 Ω, 580 mW @ 600 Ω (1% THD)
  
• Pre-Out Gain: +15 dB / +21 dB
  
• Headphone Gain: +17 dB / +23 dB
  
• Frequency Response (Headphone): 20 Hz – 20 kHz (+0, -0.1 dB), 170 kHz @ -3 dB
  
• THD+N: < 0.0007% (20 Hz – 20 kHz)
  
• SNR: Up to 123 dB (A-weighted)
  
• Output Impedance: < 1 Ω (headphone), < 20 Ω (pre-out)
  
• Inputs: 1 × XLR balanced, 2 × RCA single-ended
  
• Outputs: 6.35 mm SE, 4.4 mm balanced, 4-pin XLR balanced headphone; XLR + RCA pre-out
  
• Power Supply: Toroidal transformer with 39,000 µF capacitor bank
  
• Power Consumption: Idle 35 W, Max < 80 W
  
• Dimensions: 330 × 97 × 275 mm (W × H × D)
  
• Weight: 6.16 kg
  

Top 20 Questions About Matrix Audio NA-1

What kind of sound does the Matrix Audio NA-1 produce?
The NA-1 delivers rich, dynamic Class A sound with open highs, full-bodied mids, and solid bass — transparent yet musical.

Can the Matrix Audio NA-1 drive demanding headphones?
Yes, its up to 18 W balanced output and high damping factor effortlessly power even the most current-hungry planars and low-impedance designs.

Is the Matrix Audio NA-1 a pure Class A amplifier?
Yes, it operates in pure Class A with four independent fully balanced discrete stages for maximum linearity and low distortion.

Does the Matrix Audio NA-1 function as a preamplifier?
Yes, it includes high-quality XLR and RCA pre-outs with selectable gain, perfect for driving external power amplifiers and speakers.

What headphone outputs does the Matrix Audio NA-1 offer?
It provides 6.35 mm single-ended, 4.4 mm balanced, and 4-pin XLR balanced outputs for broad compatibility.

What inputs are available on the Matrix Audio NA-1?
One XLR balanced and two RCA single-ended inputs allow connection of up to three analog sources.

Does the Matrix Audio NA-1 support balanced connections?
Yes, it features fully balanced XLR input and multiple balanced headphone outputs for optimal noise rejection and performance.

Can I adjust gain on the Matrix Audio NA-1?
Yes, selectable gain settings optimize performance for both sensitive and demanding headphones or preamp use.

What power supply does the Matrix Audio NA-1 use?
A robust linear supply with toroidal transformer and large capacitor bank ensures clean, stable power delivery.

Does the Matrix Audio NA-1 run hot due to Class A operation?
It runs warm under load (idle ~35 W), so adequate ventilation is recommended for optimal performance.

Is the Matrix Audio NA-1 suitable for use with speakers?
Yes, via its pre-outs it serves as an excellent preamplifier when paired with a separate power amp.

What is the output impedance of the Matrix Audio NA-1?
Less than 1 Ω for headphone outputs, ensuring excellent control and compatibility with varied headphones.

Does the Matrix Audio NA-1 include a remote control?
Input selection and volume are handled via the front panel; check current packaging for remote inclusion.

How does the Matrix Audio NA-1 compare to other flagship headphone amps?
Its massive Class A power, low distortion, and versatile preamp functionality place it among the top analog designs available.

What headphones pair best with the Matrix Audio NA-1?
It excels with demanding planars, low-impedance dynamics, and high-end models needing current and control.

Is the Matrix Audio NA-1 compact for desktop use?
Yes, its 330 mm width and elegant design make it ideal for desktop or rack setups while maintaining serious build quality.

What is the signal-to-noise ratio of the Matrix Audio NA-1?
Up to 123 dB (A-weighted) for headphone output and 124 dB for pre-out, delivering a dead-quiet background.

Does the Matrix Audio NA-1 support trigger integration?
Yes, it includes 12 V trigger in and out for automated system control.

What warranty does the Matrix Audio NA-1 include?
The Matrix Audio NA-1 carries the manufacturer’s standard warranty; contact us for details.

Where can I get expert help with the Matrix Audio NA-1?
For assistance or product questions, call 443-402-5055 or text 443-402-5064 to reach our team at All Elite Audio, your authorized dealer with a full home audio showroom.