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I have the Beyerdynamic DT990 and i love them, but thats i personal opinion. I have set up some vaules of min and the ones u metioned, in that way u can compare your self. Oh and what i know, is that the AKG 501 is out.
BEYRDYNAMIC DT 990 PRO.
Operating principle Open
Weight without cable 250 g
Frequency response 5 - 35,000 Hz.
Nominal impedance acc. to IEC 60268-7 250 Ω /System
Nominal SPL acc. to IEC 60268-7 > 96 dB
Nominal THD acc. to IEC 60268-7 < 0.2%
Power handling capacity acc. to IEC 60268-7 100 mW
Sound coupling to the ear Circumaural
Average pressure on ear acc. to IEC 60268-7 3.5
AKG K601
Type Open-back, dynamic headphones
Efficiency 101 dB/V
Frequency range 12 Hz to 39,5 kHz
Rated impedance 120 ohms
Max. input power 200 mW
Cable single-sided, 99.99% oxygen-free cable, 3 m (10 ft.)
Connector 1,4" hard gold plated
Net weight (without cable) 235 g (8.3 oz.)
Patent(s) Varimotion – multiple-thickness diaphragm for dynamic transducer (Patent no. AT 403.751, US 6.185.809)
AKG K701
Type Open-back, dynamic headphones
Efficiency 105 dB/V
Frequency range 10 Hz to 39.8 kHz
Rated impedance 62 ohms
Max. input power 200 mW
Cable bi-wiring, single-sided, 99.99% oxygen-free cable, 3 m (10 ft.)
Connector 1/4" hard gold plated
Net weight (without cable) 235 g (8.3 oz.)
Patent(s) Varimotion – multiple-thickness diaphragm for dynamic transducer (Patent no. AT 403.751, US 6.185.809)
SENNHEISER HD650
Nominal impedance 300 Ohm
Contact pressure ca. 2,5 N
Weight w/o cable ca. 260g
Jack plug 6,3/3,5 mm stereo
Transducer principle (Headphones) open, dynamic
Ear coupling circumaural
Cable length 3 m
Frequency response (headphones) 10.....39500 Hz
Sound pressure level (SPL) 103 dB (1 Vrms)
THD, total harmonic distortion 0,05 %
SENNHEISER HD595
Nominal impedance 50 Ohm
Contact pressure 3,5 N
Weight w/o cable 270 g
Jack plug 6,3 mm stereo (3,5 mm Adapter)
Transducer principle (Headphones) open, dynamic
Ear coupling circumaural
Cable length 3 m
Frequency response (headphones) 12.....38500 Hz
Sound pressure level (SPL) 112 dB (1 kHz and 1 Veff)
THD, total harmonic distortion < 0,1 %
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Latest tune:Dj Eco - Paradise now (Onova remix) [Lunatique records]
Last edited by substorm on Jun-27-2006 at 14:40
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