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McIntosh amp taps vs current
Hey gang. Help me understand this relationship.
In the context of a speaker with a nominal impedance of 8 ohm and a minimal impedance of 3.1 ohm in bass region (Focal Scala EVO). From what I’ve gathered, speakers that have low impedance in the bass compared with the nominal impedance work best with high current amps that always seem to be capable of doubling watts as the impedance is halved (eg 200w @ 8 ohm, 400w @ 4 ohm, 800w @ 2 ohm). I understand that the McIntosh autoformer results in ability to supply the amplifier’s rated output whether using 2, 4, or 8 ohm tap which is great when the speaker nominal impedance is fairly flat across freq spectrum. But what happens when we use 8 ohm tap on the MC601 for example and the bass impedance dips down to 3 ohm? Is this a problem? If one picks the 4 ohm tap, that helps the bass current needs but what about the higher impedance for the remaining freq? I know we can try whichever tap we want and pick whichever sounds best, won’t hurt amp or speaker but before purchasing said speaker, is a McIntosh amp able to properly drive a speaker like this compared with a different amp that is capable of doubling watts with decreasing impedance. Are McIntosh amps considered “high current” amps or is that term only reserved for amps capable of doubling output?
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Preamp: McIntosh C1100T/C1100C, McIntosh MX180 Amp: McIntosh MC611 (2), MC601 (3), MI254 Digital: McIntosh D1100, McIntosh MCT450, Meridian 808v6, Aurender N20, Aurender ACS10, Oppo 203 Analog: McIntosh MT10, Hana Umami Red Phono preamp: Simaudio Moon 610LP, 820S Signal cables: WW Gold Eclipse 7 speaker cables; Shunyata Sigma v2 XLR (2); Sigma v1 XLR (2), Transparent Ref XL (MM2) XLR; WW Silver Eclipse 7 (4) Digital cables: Shunyata Omega USB, Omega Ethernet, Sigma Ethernet; WW Platinum 7 Coax, AES/EBU Switch: Innuos PhoenixNet Power: Audioquest Niagara 7000, Audioquest 5000, Audioquest Dragon, Hurricane PC, Shunyata Alpha HC, AQ NRG Edison outlets, (8) 20 amp dedicated lines, 125 amp subpanel Speakers: Wilson Sasha DAW, Dynaudio Contour 30, Dynaudio Contour 25C Subs: REL s/812 (6), REL s/510 (3) Accessories: HRS M3X2 shelf (MT10), Stillpoints Ultra II v2 w/ bases (21), Ultra SS (12), Mini (12), LPi v1 Sound treaments: Artnovion Last edited by j3brow; 05-12-2021 at 09:49 PM. |
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