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  1. #1
    AR Newbie Registered Member
    Join Date
    May 2004

    Question Two pairs of speakers to McIntosh 2200 ?

    Hi there, everyone. I have a McIntosh 2200 amp arriving soon. I would like to connect two pairs of speakers to this amp in parallel, at least temporarily. One pair is 4 ohms and the other 8 ohms.

    The 2200 has the autoformer, so there's separate connections for each set of impedances - 1, 2, 4, 8 - and you get 200 watts per side regardless of the impedance.

    Should I connect one pair of speakers to the 8 ohm terminals and the other to the 4, or should I connect everything to just one set of terminals, like the 2 ohm set (the combined impedance is 2.6, correct?)

    Please help me out. Thanks.

  2. #2
    Color me gone... Resident Loser's Avatar
    Join Date
    Mar 2004
    Nueva Jork

    Out of curiosity...

    ...the only "2200" anything I can find @ the McIntosh site is a pre-amp...and there is no power amp rated least in their current models...

    I did find a picture at one site for a very atypical MC-2200 200wpc solid state unit...aluminum faceplate sans meters...nothing else during my search...

    Product divided by sum does ring a bell...

    jimHJJ(...just wonderin' about the unit...)
    Last edited by Resident Loser; 05-19-2004 at 11:33 AM. Reason: addendum & misc

  3. #3
    Suspended markw's Avatar
    Join Date
    Dec 2001
    Noo Joisey. Youse got a problem wit dat?

    I'd connect them BOTH in parallel to the same terminal.

    I'd probably go with either the 2 or 4 ohm position. Actually, I would call Mac and see what they recommend here.

    The math, for those who don't know, to determine the impedance of two speakers in parallel is as follows:

    Where S1 = impedance of speaker 1 and S2 = impedance of speaker 2

    (S1 TIMES S2) over (S1 PLUS S2), or
    ((8 * 4) / (8 + 4)), or
    (32 / 12), or 2.667 ohms.

    P.S... the math for connecting two speakers in series is simply S1 PLUS S2, or 12 here.

  4. #4
    AR Newbie Registered Member
    Join Date
    May 2004


    Yes, this is in fact the MC-2200, 200wpc w/ the silver faceplate from the late 70's. I guess I'll either try both on the lower impedance terminals or contact McIntosh. Thanks.

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