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HD 660 S
https://en-us.sennheiser.com/headphones-audiophile-high-end-hd-660-s
- Impedance: 150 Ω
- Connector: Stereo jack plug, gold-plated 6.35 mm, unbalanced, 3-pin 4.4 mm, balanced, 5-pin
- Frequency response: 10 – 41,000 Hz (-10 dB)
- Sound pressure level (SPL): 104 dB at 1V 1kHz
- Ear coupling: Over-ear (circumaural)
- THD + N, total harmonic distortion and noise: < 0,04% (1 kHz, 100 dB)
- Transducer principle (headphones): Dynamic, open
- Weight w/o cable: Approx. 260 g (without cable)
Gilmore Lite mk2
- Amplifier type: Dynamic solid state (JFET, bipolar transistors)
- Class of operation: Class A
- Signal-to-noise ratio: >100 dB
- Total harmonic distortion: <0.006%
- Gain: 7.5x / 16.5 dB
- Input impedance: 50 kohms
- Output impedance: <1 ohm
- Output power: 1.5 watts
- Inputs/outputs: 2x RCA inputs, 1 1/4" headphone out, RCA active-preamplifier out
- Power consumption: 10 watts
- Power supply options: 100V, 115V, 230V
- Made in the USA