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Audiobot Notes
Peak SPL

126.0 dB

This was approximated from the source output at 50 Ω

Damping factor 250.0 and 833.3
Reminder Headphones must be recabled for balanced drive to be compatible with this amp
Beyerdynamic DT 990 PRO
Impedance 250 Ω
Efficiency 96.0 dB SPL/mW
Frequency Response 5 - 35,000 Hz
Transducer Type Dynamic
Operating Principle Open
Ear Coupling Over-ear
Weight 250 g
Additional Notes
"The DT 990 PRO is an open dynamic headphone for studio applications. Due to a weight reduction of the diaphragm an excellent sound reproduction quality is achieved. Its rugged design with a spring steel headband ensures a secure fit and withstands all demands. Soft headband and ear cushioning systems ensure a high comfort over long periods of time."
Price History
Current $128.88
Highest $199.00
Lowest $128.88
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Beyerdynamic DT 990 Edition (250 Ω)
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Schiit Mjolnir 2
Type Tube hybrid
Output Impedance 1.0 Ω
0.3 Ω
Power Output 425 mW at 600 Ω
850 mW at 300 Ω
5,000 mW at 50 Ω
8,000 mW at 32 Ω
Frequency Range 20 - 20,000 Hz
Input Balanced Only
Portable
Additional Notes
"Tube or solid state balanced headphone amplifier"
Price History
Current $849.00
Highest $849.00
Lowest
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