Ultrasone PRO-550 headphones
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| Impedance | 64 Ω |
|---|---|
| Efficiency | 102.0 dB SPL/mW |
| Transducer Type | Dynamic |
| Operating Principle | Closed |
| Ear Coupling | On-ear |
| Target SPL Requirements | ||
|---|---|---|
| Target | Power | Voltage |
| 90.0 dB | 0.06 mW | 0.06 Vrms |
| 92.5 dB | 0.11 mW | 0.08 Vrms |
| 95.0 dB | 0.2 mW | 0.11 Vrms |
| 97.5 dB | 0.35 mW | 0.15 Vrms |
| 100.0 dB | 0.63 mW | 0.2 Vrms |
| 102.5 dB | 1.1 mW | 0.27 Vrms |
| 105.0 dB | 2.0 mW | 0.36 Vrms |
| 107.5 dB | 3.5 mW | 0.48 Vrms |
| 110.0 dB | 6.3 mW | 0.64 Vrms |
| Price History | |
|---|---|
| Current | $139.99 |
| Highest | $229.95 |
| Lowest | $139.99 |
| Search Item | Amazon, eBay |
Other headphones by Ultrasone
| Rank | Model | Current Price |
|---|---|---|
| - | DJ1 Pro | $185.00 |
| - | HFI-15G | $67.93 |
| - | HFI-2200ULE | $199.00 |
| - | HFI-550 | Check Amazon » |
| - | HFI-600 | Check Amazon » |
| - | HFI-700 | $213.32 |
| - | HFI-780 | $219.89 |
| - | PRO-2500 | Check Price |
| - | PRO-750 | $265.99 |
| - | PRO-900 | $549.95 |
Similar Headphones
| Model | Style | Impedance | Price | |
|---|---|---|---|---|
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Sony MDR-V300 | Closed, On-ear | 24 Ω | — |
|
Sony MDR-7502 | Closed, On-ear | 45 Ω | $59.00 |
|
Sony MDR-V150 | Closed, On-ear | 24 Ω | $31.00 |
|
AKG K 550 | Closed, On-ear | 32 Ω | $244.98 |
|
Sony MDR-V700DJ | Closed, On-ear | 24 Ω | $399.95 |
|
Phiaton Bridge MS 500 | Closed, On-ear | 16 Ω | $161.33 |
|
Polk Buckle | Closed, On-ear | 24 Ω | $52.00 |
Popular amps for Ultrasone PRO-550
| Model | Peak SPL | Portable | Price | |
|---|---|---|---|---|
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Electric Avenues PA2V2 | 122.0 dB | $70.00 | |
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FiiO E11K / A3 | 123.3 dB | $59.99 | |
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FiiO Andes E07K | 122.4 dB | $8,876.70 | |
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FiiO Fujiyama E06 | 119.0 dB | $27.99 | |
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Schiit Fulla 2 | 124.5 dB | $99.00 | |
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Schiit Fulla | 124.4 dB | $59.00 | |
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FiiO E5 | 117.7 dB | $20.00 |
