Stax SRD-7SB Electrostatic Headphones Transformer; Self Bias; 5m Extension Cable What is Included: Main unit, Manual, 5 meter extension cable for StaxThis is the 1 pages manual for stax srd 7 sb brochure. Read or download the pdf for free. The SRD~7 and the SRD~7SB are the advanced models When connected to a conventional stereo integrated or power amplifier STAX earspeakers require an adaptor. The. SRD-7/MK 2 Adaptor raises the signal voltage Stax SRD-7-SB, SRD-6-SB Owners manual. + 1 hidden pages. Unhide for 1. You can only view or download manuals with. Sign Up and get 5 for free.