Table of Headphone Specifications

(From: Understanding Headphone Power Requirements)

Disclaimer: The headphone specifications were supplied to us by the respective manufacturers, subject to change without notice.

Manufacturer	Model	Impedance (Ohms)	Sensitivity (dB)	Max Power (mW)	Max SPL (dB)
AKG	K141M	600	98	80	117
	K240M, K240DF	600	88	80	107
	K270S	75	92	380	118
	K301	100	94	285	119
	K401, K501	120	94	290	119
Audio-Technica	ATH-COM1, COM2, ATH-908	40	90	440	116
	ATH-910	40	92	440	118
	ATH-P5	40	100	440	126
	ATH-M40	60	100	400	126
	ATH-D40	66	102	295	127
	ATH-M2X, ATH-M3X	45	100	435	126
Beyerdynamic	DT150	250	97	175	119
	DT211, DT311	40	98	440	124
	DT250	80	98	360	123
	DT411	250	102	175	124
	DT531	250	95	175	116
	DT431, DT331	40	86	440	112
	DT770PRO, DT990PRO	600	96	80	115
	DT801, DT811,DT511	250	94	175	116
	DT901, DT911	250	98	175	120
Fostex	T-5	44	96	435	122
	T-7	70	98	385	124
	T-20	50	96	425	122
	T-40	50	98	425	124
Hosa	HDS-701	40	91	440	117
Koss Headphones	A/250, A/200, A/130, TD/80	60	98	320	125
	R/200	60	84	400	110
	R/100, R/45	60	85	400	111
	R/90, HD/2, SB/15	60	100	400	126
	R/80, R/35S, R/20, Porta Pro models	60	101	400	127
	R/70B, R/55B, SB/50, SB/35	60	101	400	127
	R/40	60	90	400	116
	R/30S	60	106	400	132
	R/10	60	103	400	129
	TD/75	60	95	400	121
	TD/65	90	101	340	126
	TD/61	38	93	440	119
Sennheiser	HD433, HD435	32	94	450	121
	HD25	70	120	380	146
	HD445	52	97	390	123
	HD25SP	85	100	350	125
	HD265, HD525, HD535, HD545, HD565	150	94	190	117
	HD455, HD475	60	94	400	120
	HD465	100	94	285	119
	HD580, HD600	300	97	80	116
Sony	MDR-V100MK2	32	98	450	125
	MDR-85	40	102	440	128
	MDR-V600, MDR-D77	45	106	435	132
	MDR-CD10	32	96	450	123
	MDR-CD550, CD750	45	100	435	126
	MDR-CD6	45	110	435	136
	MDR-CD850, CD950	32	102	450	129
	MDR-CD1000, CD3000	32	104	450	131
	MDR-D33, MDR-D55, MDR-7504	45	104	435	130
	MDR-7506	63	106	400	132
	MDR-7502	45	102	435	128
Stanton	ST PRO, DJ PRO 1000	32	100	450	127
Telex	PH-6	600	105	80	124
Yamaha	RH5M	32	98	450	125
	RH1	32	90	450	116
	RH2	32	95	450	122
	RH3	60	95	400	121
	RH10M	40	102	440	128
	RH40M	32	103	450	130

c. 1983, Rane Corporation

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