Superlux HD-681 headphones
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| Impedance | 32 Ω |
|---|---|
| Efficiency | 98.0 dB SPL/mW |
| Frequency Response | 10 - 30,000 Hz |
| Transducer Type | Dynamic |
| Operating Principle | Open |
| Ear Coupling | Over-ear |
| Target SPL Requirements | ||
|---|---|---|
| Target | Power | Voltage |
| 90.0 dB | 0.16 mW | 0.07 Vrms |
| 92.5 dB | 0.28 mW | 0.09 Vrms |
| 95.0 dB | 0.5 mW | 0.13 Vrms |
| 97.5 dB | 0.89 mW | 0.17 Vrms |
| 100.0 dB | 1.6 mW | 0.23 Vrms |
| 102.5 dB | 2.8 mW | 0.3 Vrms |
| 105.0 dB | 5.0 mW | 0.4 Vrms |
| 107.5 dB | 8.9 mW | 0.53 Vrms |
| 110.0 dB | 15.8 mW | 0.71 Vrms |
| Price History | |
|---|---|
| Current | $31.54 |
| Highest | $44.95 |
| Lowest | $31.54 |
| Search Item | Amazon, eBay |
Other headphones by Superlux
| Rank | Model | Current Price |
|---|---|---|
| - | HD-661 | $33.11 |
| - | HD-668B | $42.95 |
| - | HD-681EVO | $49.95 |
| - | HMC-631 | $99.95 |
Similar Headphones
| Model | Style | Impedance | Price | |
|---|---|---|---|---|
|
Samson SR850 | Open, Over-ear | 32 Ω | $33.99 |
|
Superlux HD-668B | Open, Over-ear | 56 Ω | $42.95 |
|
SoundMAGIC HP200 | Open, Over-ear | 32 Ω | $119.99 |
|
Beyerdynamic DT 440 Edition | Open, Over-ear | 32 Ω | $259.37 |
|
Sennheiser HD 598 Special Edition | Open, Over-ear | 50 Ω | $281.88 |
|
Philips SHP9500 | Open, Over-ear | 32 Ω | $69.00 |
|
Ultrasone HFI-2200ULE | Open, Over-ear | 75 Ω | $199.00 |
Popular amps for Superlux HD-681
| Model | Peak SPL | Portable | Price | |
|---|---|---|---|---|
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SMSL SAP-5 | 119.1 dB | $49.99 | |
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FiiO E10K | 121.0 dB | $71.30 | |
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Electric Avenues PA2V2 | 121.0 dB | $70.00 | |
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FiiO Fujiyama E06 | 118.0 dB | $27.99 | |
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SMSL SAP-4 | 121.0 dB | $61.99 | |
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FiiO E5 | 116.7 dB | $20.00 | |
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FiiO E11K / A3 | 122.3 dB | $59.99 |
