Matrix Audio
Matrix Audio NA-1 Headphone Amplifier
Matrix Audio NA-1 Headphone Amplifier
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Description
The new Matrix Audio NA-1 Headphone Amplifier delivers ample driving power, precise control, and a pure, transparent sonic presentation. Whether driving full-size flagship headphones or serving as a preamp in a Hi-Fi active speaker system, it performs with effortless authority and composure - adapting seamlessly to a wide range of listening scenarios.
The NA-1 features a fully discrete, pure Class A circuit design. Its fully balanced architecture employs four independent amplification units to effectively suppress common-mode interference during the amplification process. Building upon an excellent SNR and expansive dynamic range, it further minimizes distortion to ensure that every musical passage is conveyed with purity - infusing each playback with full-bodied and unrestrained energy.
The NA-1 features a vertically layered circuit architecture. The preamp circuitry, along with the linear power and filter capacitor array, is located on the lower PCB, while the headphone amplification stage resides on the upper. By physically isolating the voltage and the current amplification stages, the NA-1 effectively reduces interference, and thermal distribution is optimized. This ensures enhanced operational stability and improved heat dissipation efficiency - allowing the unit to perform with composure throughout every moment of pure listening.
Both the preamp and headphone outputs of the NA-1 feature independent dual-gain control. The high-gain mode of headphone output provides increased voltage swing, effortlessly unleashing the potential performance of high impedance headphones. The high-gain mode of preamp output is ideal for power amplifiers and active speakers with lower input sensitivity, providing ample drive to restore authentic musical dynamics and fully reveal the purity of the sound.
The NA-1 is equipped with one balanced input and two single-ended inputs, allowing up to three audio sources to be connected simultaneously. On the output side, it features 6.35 mm single-ended, 4.4 mm, and 4-pin XLR balanced headphone outputs, for flexible compatibility with a wide range of headphones. It also provides one XLR and one RCA pre-out, enabling seamless connection to a power amplifier or active speakers to accommodate diverse listening setups.
With its high damping factor and ample power reserves, the NA-1 maintains abundant drive capability and sufficient power headroom even in large-scale, high-dynamic musical passages. With its precise control, the NA-1 effortlessly masters various flagship full-sized headphones, unleashing the full tension and grandeur of the music with complete authority.
| Specifications: | |
|---|---|
| Analog Input Specifications | |
| XLR Input Impedance | 47kΩ |
| RCA Input Impedance | 47kΩ |
| PRE Out Specifications | |
| Frequency Response | 20–20kHz (+0, -0.1dB), 140kHz @ -3dB |
| SNR | 121dB @ +15dB A-weighting 124dB @ +21dB A-weighting |
| THD+N | < 0.0003% @ 20Hz–20kHz |
| Crosstalk | -134dB |
| Gain | +15dB / +21dB |
| Output Impedance | < 20Ω |
| Headphone Out Specifications | |
| Frequency Response | 20–20kHz (+0, -0.1dB), 170kHz @ -3dB |
| SNR | 120dB @ +17dB A-weighting 123dB @ +23dB A-weighting |
| THD+N | < 0.0007% @ 20Hz–20kHz |
| Crosstalk | -134dB @ Balanced Output -126dB @ SE Output |
| Gain | +17dB / +23dB |
| Output Impedance | < 1Ω |
| SE Output Power | 7W @ 33Ω 1W @ 300Ω 580mW @ 600Ω (1% THD) |
| Balanced Output Power | 18W @ 33Ω 4.5W @ 300Ω 2.3W @ 600Ω (1% THD) |
| Trigger Specifications | |
| Trigger In | DC 6–12V, < 10mA |
| Trigger Out | DC 12V / 50mA MAX |
| Power Specifications | |
| Power Voltage | AC 100V–120V 50/60Hz AC 220V–240V 50/60Hz |
| Standby Power Consumption | < 1W |
| Idle Power Consumption | 35W |
| MAX Power Consumption | < 80W |
| Physical Specifications | |
| Weight | 6.16 kg (13.58 lbs) |
| Dimensions | Width: 330 mm (12.99 in) Depth: 275 mm (10.83 in) Height: 97 mm (3.82 in) |
