Overview:

HE-Adapter is a device to protect amplifiers and headphones when using a speaker amplifier to drive HE6se, HE5LE, and HE4 headphones.

HE-Adapter is not for any high or average efficiency headphones.

Specifications:

Input: Speaker Connector
Output: 4 pin XLR
Resistors in Parallel: 10 Ohm
Resistors in Series: 25 Ohm
Size: 16.5 cm * 12.2 cm * 7.5 cm or 6.5 inch * 4.8 inch * 2.9 inch
Weight: 542 g or 1.2 lb