German Maestro GMP 400 headphones
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The GMP 400's sound is microscopic without missing the whole picture. |
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| Impedance | 300 Ω |
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| Efficiency | 98.0 dB SPL/mW |
| Frequency Response | 14 - 24,100 Hz |
| Transducer Type | Dynamic |
| Operating Principle | Open |
| Ear Coupling | Over-ear |
| Weight | 240 g |
| Target SPL Requirements | ||
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| Target | Power | Voltage |
| 90.0 dB | 0.16 mW | 0.22 Vrms |
| 92.5 dB | 0.28 mW | 0.29 Vrms |
| 95.0 dB | 0.5 mW | 0.39 Vrms |
| 97.5 dB | 0.89 mW | 0.52 Vrms |
| 100.0 dB | 1.6 mW | 0.69 Vrms |
| 102.5 dB | 2.8 mW | 0.92 Vrms |
| 105.0 dB | 5.0 mW | 1.23 Vrms |
| 107.5 dB | 8.9 mW | 1.64 Vrms |
| 110.0 dB | 15.8 mW | 2.18 Vrms |
| Price History | |
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| Current | $279.00 |
| Highest | $319.00 |
| Lowest | $279.00 |
| Search Item | Amazon, eBay |
Other headphones by German Maestro
| Rank | Model | Current Price |
|---|---|---|
| - | GMP 160 | Check Amazon » |
| - | GMP 240 | $186.84 |
| - | GMP 250 | $199.00 |
| - | GMP 435 S | $197.11 |
| - | GMP 450 PRO | $299.00 |
| - | GMP 8.300 D PRO | $190.00 |
| - | GMP 8.35 D Monitor | $225.00 |
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Sennheiser HD 660 S | Open, Over-ear | 150 Ω | $424.57 |
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Sennheiser HD 800 | Open, Over-ear | 361 Ω | $1,399.95 |
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AKG K 612 Pro | Open, Over-ear | 125 Ω | $138.89 |
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Beyerdynamic DT 990 PRO | Open, Over-ear | 250 Ω | $143.00 |
Popular amps for German Maestro GMP 400
| Model | Peak SPL | Portable | Price | |
|---|---|---|---|---|
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Little Dot MK II | 122.8 dB | $139.99 | |
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Schiit Vali | 121.4 dB | $119.00 | |
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Bottlehead Crack OTL | 123.2 dB | $279.00 | |
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Woo Audio WA22 | 128.4 dB | $1,995.00 | |
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Woo Audio WA2 | 126.1 dB | $1,190.00 | |
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Little Dot MK III | 123.4 dB | $267.31 | |
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Woo Audio WA3 | 123.2 dB | $599.00 |
