Superlux HD-661 headphones
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| Impedance | 68 Ω |
|---|---|
| Efficiency | 102.0 dB SPL/mW |
| Frequency Response | 10 - 20,000 Hz |
| Transducer Type | Dynamic |
| Operating Principle | Closed |
| Ear Coupling | Over-ear |
| Target SPL Requirements | ||
|---|---|---|
| Target | Power | Voltage |
| 90.0 dB | 0.06 mW | 0.07 Vrms |
| 92.5 dB | 0.11 mW | 0.09 Vrms |
| 95.0 dB | 0.2 mW | 0.12 Vrms |
| 97.5 dB | 0.35 mW | 0.16 Vrms |
| 100.0 dB | 0.63 mW | 0.21 Vrms |
| 102.5 dB | 1.1 mW | 0.28 Vrms |
| 105.0 dB | 2.0 mW | 0.37 Vrms |
| 107.5 dB | 3.5 mW | 0.49 Vrms |
| 110.0 dB | 6.3 mW | 0.66 Vrms |
| Price History | |
|---|---|
| Current | $33.11 |
| Highest | $83.33 |
| Lowest | $33.11 |
| Search Item | Amazon, eBay |
Other headphones by Superlux
| Rank | Model | Current Price |
|---|---|---|
| - | HD-668B | $38.40 |
| - | HD-681 | $29.94 |
| - | HD-681EVO | $49.95 |
| - | HMC-631 | $99.95 |
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| Model | Style | Impedance | Price | |
|---|---|---|---|---|
|
Fischer Audio FA-003Ti | Closed, Over-ear | 64 Ω | $220.00 |
|
|
Fischer Audio FA-003Ti-W | Closed, Over-ear | 64 Ω | $350.00 |
|
Shure SRH440 | Closed, Over-ear | 44 Ω | $99.00 |
|
Brainwavz HM5 | Closed, Over-ear | 64 Ω | $79.50 |
|
Sennheiser HD 569 | Closed, Over-ear | 23 Ω | $141.99 |
|
Sennheiser HD 598 CS | Closed, Over-ear | 23 Ω | $149.95 |
|
AKG K545 | Closed, Over-ear | 32 Ω | $239.00 |
Popular amps for Superlux HD-661
| Model | Peak SPL | Portable | Price | |
|---|---|---|---|---|
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Electric Avenues PA2V2 | 121.7 dB | $70.00 | |
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FiiO E5 | 117.5 dB | $20.00 | |
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FiiO E11K / A3 | 123.0 dB | $59.99 | |
|
FiiO E11 | 116.5 dB | $179.99 | |
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FiiO Fujiyama E06 | 118.7 dB | $27.99 | |
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SMSL SAP-5 | 119.9 dB | $49.99 | |
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SMSL SAP-4 | 121.7 dB | $61.99 |
