Sennheiser HD 700 headphones

Impedance	167 Ω
Efficiency	98.5 dB SPL/mW
Frequency Response	10 - 42,000 Hz
Transducer Type	Dynamic
Operating Principle	Open
Ear Coupling	Over-ear
Weight	270 g
3rd Party Measurements	www.innerfidelity.com
Additional Notes
"These awesome, open circumaural headphones with tuned, highly-efficient drivers and only the finest acoustic materials will please even the most discriminating audiophile. They also look and feel great."

Target SPL Requirements
Target	Power	Voltage
90.0 dB	0.14 mW	0.15 Vrms
92.5 dB	0.25 mW	0.2 Vrms
95.0 dB	0.45 mW	0.27 Vrms
97.5 dB	0.79 mW	0.36 Vrms
100.0 dB	1.4 mW	0.49 Vrms
102.5 dB	2.5 mW	0.65 Vrms
105.0 dB	4.5 mW	0.86 Vrms
107.5 dB	7.9 mW	1.15 Vrms
110.0 dB	14.1 mW	1.54 Vrms

Price History
Current	$693.73
Highest	$1,099.95
Lowest	$693.73
Search Item	Amazon, eBay

Other headphones by Sennheiser

Rank	Model	Current Price
-	HD 25-1 II	$249.95
-	HD 335s	$186.77
-	HD 419	$209.87
-	HD 429	$147.59
-	HD 439	$74.95
-	HD 461	$89.95
#11	HD 600	$299.00
#6	HD 650	$369.93
-	IE 800	$1,000.00
-	PX 100-II	$1,006.00