Amazon.com: PRV AUDIO 12 Inch Woofer Speaker 12W800A, 800 Watts Program Power, 8 Ohm, 2.5 in Voice Coil, 400 Watts RMS Pro Audio Loudspeaker (Single) : Electronics
EL86 and speakers? 800 Ohm | diyAudio
Output tube for 800 Ohm speaker? | diyAudio
OTL amp with EL504 for 800 Ohm speakers | diyAudio
Amazon.com: Lanzar 8 inch Car Subwoofer Speaker - Black Non-Pressed Paper Cone, Aluminum Voice Coil, 4 Ohm Impedance, 800 Watt Power and Foam Edge Suspension for Vehicle Audio Stereo Sound System - MAXP84 : Electronics