The EWB-32257-001 is a balanced armature receiver without sound tube, giving acoustic designers full freedom over sound outlet and coupling.
Custom tuning, impedance options and tailored packaging are available. Send us your target specifications for a quotation and samples.
| Type | Balanced armature receiver |
|---|---|
| Variant | Without sound tube |
| Series | EWB |
| Damping | No damping |
| Weight | 0.17 g typical |
| Storage temperature | -40℃ to 70℃ |
|---|---|
| Operating temperature | 0℃ to 70℃ |
| Nominal drive | Constant voltage (CV) |
| DCR @ 20°C | 22.0 Ω ±10% |
| Impedance @ 500 Hz | 33.0 Ω ±15% |
| Impedance @ 1 kHz | 49.5 Ω ±15% |
| Frequency (Hz) | Min (dB) | Nominal (dB) | Max (dB) |
|---|---|---|---|
| 50 | 108.2 | 110.2 | 112.2 |
| 100 | 108.7 | 110.7 | 112.7 |
| 500 | 105.6 | 111.6 | 119.6 |
| 1000 | 104 | 106 | 108 |
| 3000-3600 | 113 | 116 | 119 |
| 6500-8000 | 89.7 | 92.7 | 95.7 |
| 10000-14000 | 98.0 | 102 | 106 |
Sensitivity in dB re 20 µPa, measured on an IEC 60318-4 (IEC-711) coupler at 23℃, 50% RH, per the official datasheet.
Standard models support small-batch pilot runs. Exact MOQ and lead times depend on the model, quantity and packaging, and are confirmed at inquiry.
Yes. OEM / ODM tuning is available — tell us your target response and we will confirm the right model and a sample plan.
Every model has a measured datasheet (PDF + XLSX) in the Download Center, free of charge.
From sample to mass production
Tell us your target specs and application — we will confirm the right model, sample quantity and lead time.
Low-MOQ pilots · Clear lead times · FOB Tianjin · Free measured datasheets
