#1
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C2500/C2600/C2700 Preamp Tubes
Quick question. I've searched through old threads and can't find the answer.
With the Mac preamps, are the phono stage tubes on when the linestage is in use (i.e. - are the tubes aging even when you aren't using that section of the preamp)? Thanks, Wes |
#2
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Hi Wes,
Yes, my understanding is that all the tubes are on all the time in the C2300 and newer preamps. I owned a C2200 and that preamp turned off the phono section tubes when they were not being used. Tom
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Main System: Amati Futura Mains Amati Homage VOX Center, Proac Response 1sc Rears, Three MC2301's for L,C,R MC 602 for the rears C 1100, MX 151, MCD 1100, MR 80 Nottingham Dais with Wave Mechanic Sumiko Palo Santos Presentation SurfacePro 3, RPi 4, ROON, WW Starlight Platinum USB, Schiit Yggdrasil, Benchmark DAC3 HGC MX 151, OppO BDP-95, JVC RS-500 DILA projector, 106" diagonal Stewart Luxus Screenwall Deluxe with Studiotek 130 G3 material. Lake House: Ohm F, MC 275V, C2300, MR 77, Rega P3 OnDeck: McIntosh MAC 4300v |
#3
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Other users have posted here that there is a way to turn off the tubes in the phono circuit. Hopefully one of those owners will chime in
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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 |
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