What would happen if.....

[magno@mac.com]

....I were to attach my 200 watt/ 4 ohm speakers to the 8 ohm terminals on my Mcintosh MA6900?

Thanks!

[BRANDONH]

....I were to attach my 200 watt/ 4 ohm speakers to the 8 ohm terminals on my Mcintosh MA6900?

Thanks!

http://www.hipposaudiovideo.com/mcma6900.htm
MacIntosh has Output Autoformers.
200 watts stable at 8, 4, or 2 ohms.
But you should connect the the 4 ohm speakers to the 4 ohm terminals on the amp.
I do not know if it would hurt the amp if you connected 4 ohm to the 8 ohm terminals but it has terminals specifically for 4 ohm speakers.
Manual:
www.mcintoshlabs.com/data/manuals/MA6900om.pdf
BTW fine piece of equipment.