REF. NP-04 // FLAGSHIP
Sound, measured.
Not marketed.
The NP-04 Reference earbuds are tuned to a ±1.5 dB target curve and verified per unit. Adaptive hybrid ANC, a 40-hour system, and an aluminium acoustic chamber that behaves like test equipment.
CATALOG // 2026.Q3
The full instrument set
Eight devices. One tuning philosophy. Every unit ships with its own measured response card.
SIDE-BY-SIDE // AUDIO LINE
Compare the reference
Measured figures, not marketing rounding. Accent marks the leading value in each row.
| SPECIFICATION | NP-04 Reference RECOMMENDED | NP-02 Studio | NP-01 Field |
|---|---|---|---|
| Driver | 11 mm planar | 10 mm dynamic | 8 mm dynamic |
| Frequency response | 5 Hz – 40 kHz | 10 Hz – 24 kHz | 20 Hz – 20 kHz |
| Battery (bud / case) | 10 h / 40 h | 8 h / 32 h | 7 h / 28 h |
| ANC depth | −48 dB | −42 dB | −36 dB |
| Weight (per bud) | 5.4 g | 4.9 g | 5.1 g |
| Connectivity | BT 5.4 · LDAC | BT 5.3 · aptX | BT 5.3 · SBC |
| Water resistance | IP67 | IP54 | IP68 |
| Price | ₱12,990 | ₱9,490 | ₱6,290 |
| Action |
SYSTEM // ADAPTIVE ANC
A feedforward loop that reads the room 48,000×/sec
Dual reference microphones sample ambient pressure and feed an on-chip DSP that re-computes the anti-noise curve every 20 microseconds. The result is a −48 dB attenuation floor that holds steady as you move between a cabin, a street, and an open office — no pumping, no hiss.
- 01 Dual feedforward mics per bud
- 02 On-chip DSP, 48 kHz correction rate
- 03 Per-ear seal calibration on insert
STOCK // NOTIFY
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Reference units are built in limited runs. Leave an address and we'll ping you the moment a batch clears calibration.