Circular Output Amplifier Terminals.

Does anyone know what type of output terminals these might be (the circular ones)? What might be the reason for their use. This is the first I've seem them on main stream home audio gear. Thanks. Jim Meucci (Jrm52hfb)

jrm5203-28-2026 3:12pm

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ericrhodes1 Details Discussions Posts This discussion Message User 252 posts 03-29-2026 at 02:14am Copy Comment URL Report Comment Edit Delete So your amp accepts bare wire for speaker connections. And that Circle to the left of it looks like a freaking tube tester. But I'm just guessing.
jrm52 OP Details Discussions Posts This discussion Message User 3 posts 03-30-2026 at 01:09pm Copy Comment URL Report Comment Edit Delete Here's the picture that I thought attached before. Try again. It's some sort of aftermarket mod to an ARC D-70 amp.
jrm52 OP Details Discussions Posts This discussion Message User 3 posts 03-30-2026 at 01:12pm Copy Comment URL Report Comment Edit Delete Still didn't post. Not sure how to do it.
jrm52 OP Details Discussions Posts This discussion Message User 3 posts 03-30-2026 at 01:19pm Copy Comment URL Report Comment Edit Delete See my add on US Audio Mart for the ARC D-70 amp. The circular connectors are shown there. Thx everyone for your replies. Best, Jim
gkelly Details Discussions Posts This discussion Message User 984 posts 03-30-2026 at 01:53pm Copy Comment URL Report Comment Edit Delete https://www.usaudiomart.com/details/650297931-audio-research-d-70-mk-ii/ looks like speak on connection.

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