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#1
07-23-2018, 01:26 AM
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C2500 preamp tone controls
Does anyone know what frequency the attenuation/enhancement of the tone controls are based on?
It has db Plus or minus, but around what frequency? e.g 100hz, 50 hz, 25 hz? Anyone have any idea?
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AuraTT/Dyn/EMT, McIntosh pre/power, ML Summit 
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#2
07-23-2018, 06:12 AM
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Citroen-
Check out the owners manual. There should be a diagram.
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AKA J2Ordan McIntosh/Legacy/VPI/Bricasti/DIYCable
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#4
07-23-2018, 04:25 PM
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all i can say is, that i love this simple tone control (have the same on my ma6700) instead of having a whole bunch of euqalizer knobs. plus i can use my remote for it (something you cannot do when you have a "full" equalizer).
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#5
07-23-2018, 04:27 PM
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typalder667.......Welcome to Audio Aficionado.
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Dan  STUDIO - McIntosh C1000C/P, MC2301 (2), MR88, Aurender N10, Esoteric K-01X, Shunyata Sigma spdif digital cable, Sonos Connect, PurePower 2000, Stillpoints, Furutech Flux 50, Michell Gyro SE, Michell HR Power Supply, SME 309, Ortofon Cadenza Black, Wireworld, Sonus faber Amati Anniversario LIVING ROOM - McIntosh C2300, MC75 (2), MR85, Magnum Dynalab 205, Simaudio MOON Neo 260D-T, Schiit Audio Yggdrasil, Aurender N100H, Shunyata Sigma USB cable, Micro Seiki DD40, Ortofon Cadenza Blue, Nakamichi BX-300, Sony 60ES DAT, PS Audio P10, Furutech Flux 50, Sonos Connect, Stillpoints, Wireworld, Kimber, PMC EB1i, JL Audio f113 VINTAGE - McIntosh MA230, Tandberg 3011A tuner, Olive 04HD, Sony DTC-59ES DAT, McIntosh 4300V, JBL 4312A
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#6
07-23-2018, 04:37 PM
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C2500 Tone Control Graph.
.
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Dan STUDIO - McIntosh C1000C/P, MC2301 (2), MR88, Aurender N10, Esoteric K-01X, Shunyata Sigma spdif digital cable, Sonos Connect, PurePower 2000, Stillpoints, Furutech Flux 50, Michell Gyro SE, Michell HR Power Supply, SME 309, Ortofon Cadenza Black, Wireworld, Sonus faber Amati Anniversario LIVING ROOM - McIntosh C2300, MC75 (2), MR85, Magnum Dynalab 205, Simaudio MOON Neo 260D-T, Schiit Audio Yggdrasil, Aurender N100H, Shunyata Sigma USB cable, Micro Seiki DD40, Ortofon Cadenza Blue, Nakamichi BX-300, Sony 60ES DAT, PS Audio P10, Furutech Flux 50, Sonos Connect, Stillpoints, Wireworld, Kimber, PMC EB1i, JL Audio f113 VINTAGE - McIntosh MA230, Tandberg 3011A tuner, Olive 04HD, Sony DTC-59ES DAT, McIntosh 4300V, JBL 4312A
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#7
07-23-2018, 06:14 PM
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thanx for the warm welcome :-)
cheers from germany, oliver
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#8
07-25-2018, 12:31 AM
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I did check the manual but couldn't find anything.
That graph looks interesting but what does it mean if I say set the bass tone control to -6 db (which seems to interesect at 100HZ)? Do I go to the -6db 20Hz line and follow that? Which has the 100Hz at about -3 db?
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AuraTT/Dyn/EMT, McIntosh pre/power, ML Summit
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#9
07-25-2018, 01:12 AM
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Citroen.......Yes, that is how the bass control is tapered across the range it impacts. The same is true for the treble control. To get any finer control over more specific frequency ranges you will need the eight band EQ found on other McIntosh preamps. Even the expanded EQ spills into adjacent frequency ranges.
This is the tone control curves for the McIntosh C52/ 
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Dan STUDIO - McIntosh C1000C/P, MC2301 (2), MR88, Aurender N10, Esoteric K-01X, Shunyata Sigma spdif digital cable, Sonos Connect, PurePower 2000, Stillpoints, Furutech Flux 50, Michell Gyro SE, Michell HR Power Supply, SME 309, Ortofon Cadenza Black, Wireworld, Sonus faber Amati Anniversario LIVING ROOM - McIntosh C2300, MC75 (2), MR85, Magnum Dynalab 205, Simaudio MOON Neo 260D-T, Schiit Audio Yggdrasil, Aurender N100H, Shunyata Sigma USB cable, Micro Seiki DD40, Ortofon Cadenza Blue, Nakamichi BX-300, Sony 60ES DAT, PS Audio P10, Furutech Flux 50, Sonos Connect, Stillpoints, Wireworld, Kimber, PMC EB1i, JL Audio f113 VINTAGE - McIntosh MA230, Tandberg 3011A tuner, Olive 04HD, Sony DTC-59ES DAT, McIntosh 4300V, JBL 4312A Last edited by jdandy; 07-25-2018 at 01:23 AM.
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#10
07-25-2018, 01:24 AM
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Ah, thanks Dan
Still a little confused as the graphs have -14 db at 20Hz But the C2500 only allows for -12 db, not -14db. So here did that -14db line come from?
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AuraTT/Dyn/EMT, McIntosh pre/power, ML Summit
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