Matrix Audio NA-1 — Decision Profile
L2 Decision Profile · documentation + editorial assessment
Quick verdict
An analogue headphone/preamp chain with appropriate ventilation and confirmed load
Avoid if: A DAC, streamer or speaker-power amplifier inferred from high headphone watts
Evidence checked: 2026-10-17. Manufacturer documentation; no independent SoundPath Lab listening, measurement, compatibility or firmware retest.
System conditions
Feed controlled line-level audio, verify mains version, use correct headphone cabling and low initial gain; maintain ventilation
Documented specifications
| Item | Specification and conditions |
|---|---|
| Role | Class-A analogue headphone amplifier/preamplifier |
| Inputs | One balanced XLR and two RCA input pairs; 47 kohm input impedance |
| Outputs | 6.35 mm single-ended, 4.4 mm and 4-pin XLR balanced headphones; RCA/XLR pre-out |
| Power condition | At 33 ohms, 7 W SE / 18 W balanced at 1% THD; at 600 ohms, 580 mW / 2.3 W |
| Consumption | 35 W idle; consumption is not delivered headphone power |
Limits and source qualifications
Headline power is specified at 1% THD and does not establish low-distortion headroom at every load; heat and audible noise were not tested
Alternatives by need
ND-1 complements NA-1 as a DAC; CMA Eighteen Master combines conversion and headphone amplification in one component
Keep or upgrade
Keep a working system that already meets these requirements. Consider a change only when the documented connection, control or system role solves a specific unmet need; no measured sound-quality upgrade is claimed.
Evidence, support and reassessment
Review scope
Exact-model primary specification and connection sections cited below were reviewed. Source claims and editorial system-fit reasoning are distinct from independent listening, measurement, compatibility or firmware tests; none were added.
Actual sound, under-load output, room/ear fit, latency and long-term reliability remain untested. Existing scores, Builder qualification and owner/test records were not reassessed.
Firmware and regional support
Local stock, authorized sales, transaction prices and long-term support duration are not established by this documentation review. Dated regional announcements apply only to their stated territory and terms. Existing dated price and owner evidence is retained.
No installed firmware version or issue resolution was retested. Follow the exact-model official support workflow.
Reassess when evidence changes
Reassess on verified hardware or firmware changes, clarification of a source conflict, material support/compatibility changes, or accepted independent testing.
No new six-month ownership evidence was added; existing owner and issue records remain unchanged.
Related records and tools
- Matrix Audio ND-1
- Questyle CMA Eighteen Master
- Product directory
- System Builder
- Issues and limitations
- Firmware and app tracker
- Compare this product
Sources checked
Revision: 2026-10-17 — L0/L1 to L2 after model-level documentation and decision review. Product identity and existing scores/qualification retained. L2 is evidence coverage, not independent test acceptance.
Member knowledge · editor reviewed
Questions, owner experience and product issues
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