Headphone Voltage Cheat Sheet

	A	B	C	D	E
1	Headphone	Sensitivity (dB/1mW)	Impedance	Required Voltage for 110dB	Notes
2	Hifiman HE-6	83.5	50	4.726
3	Beyerdynamic DT880 600 ohm	96	600	3.882
4	Fostex T50RP Modded	88	50	2.815	Calculated from LFF InnerFidelity #s. Contrast with MadDogs.
5	Hifiman HE-5	87.5	38	2.600
6	Hifiman HE-5LE	87.5	38	2.600
7	Beyerdynamic DT880 250 ohm	96	250	2.506
8	Beyerdynamic DT990 Premium 250 ohm	96	250	2.506
9	Sennheiser HD800	97	300	2.447
10	Sennheiser HD600	97	300	2.447
11	Sennheiser HD580	97	300	2.45
12	Sennheiser HD650	98	300	2.18
13	AKG K240 MKII	91	55	2.09
14	AKG K240 Studio	91	55	2.09
15	Audeze LCD2 Planar Magnetic Headphones	91	50	1.99
16	Beyerdynamic Tesla T1	102	600	1.95
17	MrSpeakers MadDogs	92	50	1.78
18	AKG K612	101	120	1.68	db/1V calc used
19	AKG K701/Q701/K702	93	62	1.76
20	Audeze LCD-3	93	50	1.58
21	Hifiman HE-300	93	50	1.58
22	Sennheiser HD700	98	150	1.54
23	Beyerdynamic DT770 Pro 80 ohm	96	80	1.42
24	Hifiman HE-400	92.5	35	1.40
25	Sennheiser HD518	108	50	1.12	db/1V calc used
26	KRK KNS 6400	95	36	1.07
27	Brainwavz HM3	95	32	1.01
28	Ultrasone Pro900	96	40	1.00
29	Sennheiser HD380	110	54	1.00	db/1V calc used
30	Superlux HD-668B	98	56	0.94
31	Beyerdynamic DT880 32 ohm	96	32	0.90
32	Sennheiser HD598	98	50	0.89
33	Fostex T50RP Stock	98	50	0.89
34	Sennheiser HD558	98	50	0.89
35	KRK KNS 8400	97	36	0.85
36	Sennheiser HD202	115	32	0.75	db/1V calc used
37	Panasonic RP-HTF600-S	100	56	0.75
38	Ultrasone HFI-780	98	35	0.74
39	Audio-Technica ATH-AD700	98	32	0.71
40	Grado SR80i	98	32	0.71
41	Grado SR60i	98	32	0.71
42	Grado SR325i	98	32	0.71
43	Superlux HD681	98	32	0.71
44	Audio-Technica ATH-M50	99	38	0.69
45	Koss Pro DJ 100	99	38	0.69
46	Koss KSC75	101	60	0.69
47	Koss PortaPros	101	60	0.69
48	Shure SRH940	100	42	0.65
49	Sennheiser HD280	102	64	0.64
50	Monoprice MHP-839	100	40	0.63
51	Audio-Technica ATH-AD900	100	35	0.59
52	Shure SRH840	102	44	0.53
53	AKG K550	101	32	0.50
54	Denon AH-D1100	101	32	0.50
55	Audio-Technica ATH-AD2000	102	40	0.50
56	Fischer Audio FA-003/Brainwavz HM5/Jaycar Pro Monitors	105	64	0.45
57	Philips Citiscape Downtown	102	32	0.45
58	Creative Aurvana Live!	103	32	0.40
59	Philips Citiscape Uptown	103	32	0.40
60	Sony XB500	104	40	0.40
61	Sony MDR-V6	106	63	0.40
62	JVC HARX700	105	48	0.39
63	JVC HA-S400B	104	36	0.38
64	Shure SRH-440	105	44	0.37
65	Skullcandy Aviators	104	34	0.37
66	Beyerdynamic T70p	104	32	0.36
67	V-MODA Crossfade M-100	105	32	0.32
68	Beyerdynamic DT1350	109	80	0.32
69	Audio-Technica ATH-Pro700 MK2	106	38	0.31
70	V-MODA M-80	105	28	0.30
71	Denon AH-D2000	106	25	0.25
72	Denon AH-D7000	108	25	0.20
73	Sennheiser Momentum	110	18	0.13
74	HiFiMan Susvara	83	60	5.48
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