#1
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Anyone Fix Yellowing Meters?
My C2200 is in for repair and while it is down and out, I thought when I get it back I would also take care of a cosmetic problem.
The white meters yellowed from the heat of the lighting. I bought the unit like this several years ago from Audio Classics. Before shipping it out to me they installed the "spacer fix" to give air circulation room so its not getting any worse. I understand this is a common problem with these (pre-LED) McIntosh meters so hoping someone here might have gone down this road before. I would like to see if there is any way to correct this and bring the white plastic casing back to white on the inside. I dont have the pre with me right now, but I remember that the white part of the meter is the white casing that encloses the meter from behind and does not have the meter face on it. Am I correct on this? If so, would it be possible to pull that plastic casing off the back and give it a spray with plastic paint? I know the casing might be glued together, but I have seen other types of meter repairs where its claimed the Mac meters can be pulled apart fairly easily by working the glue seam with an exacto knife. |
#2
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Definitely not recommended.
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Ivan FLORIDA MX136, MC1.2KW(10) MC2KW(2), MCD1100, MS750(2) MVP881, C1000C/P/T, MPC1500, HT-2 SUBS(2) HT3F(2) WS350(2) XRT2K, XCS2K, XR27(2) XCS350(2) JL GOTHAM v2 SUBS(2) SILENZIO MUSIC SERVER, LUMAGEN RADIANCE SCALER, SONY VPH-G90U 4K PROJECTOR, STEWART 120" MOTORIZED SCREEN, CINEMA-TECH SEATING, WW PLATINUM CABLES Reference System: ACCUPHASE A300 AMPS, C3900 PRE-AMP, DP1000 CD/SACD TRANSPORT, DC1000 DIGITAL PROCESSOR, DG-68 DIGITAL EQUALIZER, T1200 FM STEREO TUNER, PS1230 POWER SUPPLY, HRS-SXR CUSTOM RACK w/ M3X SHELVES, TAD REFERENCE ONE MK2 LOUDSPEAKERS, WW PLATINUM CABLES CAPE COD MX150, MC501(2) MC1.2KW(10) MC2301(2) MR88, MVP881, MCD1100, MDA1000, C1000C/P/T, MPC1500, ESOTERIC K-01X 30th ANNIVERSARY (BLACK) SACD/CD PLAYER, G02-X CLOCK, HT3F(2) XRT2K, XCS2K, XR27(2) JL GOTHAM v2 SUBS(2) JL FATHOM F113v2 SUBS(4) SOUND ANCHOR STANDS(2) KALEIDESCAPE STRATO & TERRA SERVERS 80-TB, LUMAGEN RADIANCE SCALER, SONY VPH-G90U 4K PROJECTOR, STEWART 120" SCREEN, SONUS FABER STRADIVARI, SILENZIO MUSIC SERVER, FORTRESS SEATING, WW PLATINUM CABLES Analog Rig: CLEARAUDIO INNOVATION WOOD, UNIVERSAL ARM w/ Da VINCI' CART, 2nd UNIVERSAL ARM w/ GOLDFINGER STATEMENT CART, HRS-MXR REFERENCE RACK-GLOSS BLACK w/ M3X SHELVES, AESTHETIX RHEA SIG PHONO-PRE, BRYSTON BHA-1 HEADPHONE AMP, WW PLATINUM CABLES Reference System: BURMESTER 911MK3 AMP(3), 088 PRE-AMP, 089 CD PLAYER, 100 PHONO PRE-AMP, 948 POWER CONDITIONER, ACCUPHASE DG-68 VOICING EQUALIZER, AVID ACUTUS REFERENCE SP TT, GRAHAM PHANTOM II SUPREME ARM, BENZ MICRO LP-S CART, GRANDIOSO P1X/D1X STACK, G1X RUBIDIUM MASTER CLOCK, N05 NETWORK PLAYER, SILENZIO MUSIC SERVER, HRS-SXR CUSTOM RACK w/ M3X SHELVES, SONUS FABER AIDA SPEAKERS, JL FATHOM F113v2 SUBS(2) SOUND ANCHOR STANDS(2) WW PLATINUM CABLES Library System: GRANDIOSO M1 MONOBLOCK AMPS, C1 LINESTAGE PRE-AMP, K1X CD/SACD PLAYER, G1 MASTER RUBIDIUM CLOCK, E02 PHONO-PRE, SILENZIO MUSIC SERVER, AERIAL ACOUSTICS 20T V2, AERIAL SW12 SUBS(2), CANTON REF K1’s, VPI HRX TT w/ SDS POWER SUPPLY, ORTOFON CADENZA BLACK CART, KLAUDIO RCM, SHUNYATA DENALI 6000/S v2, SHUNYATA OMEGA QR’s, WW PLATINUM CABLES Esoteric/Bryston System: ESOTERIC C02-X PRE-AMP, P-02X TRANSPORT, D02-X DAC, G02-X CLOCK, BRYSTON 28B3 CUBED MONOBLOCK AMPS(4), BRYSTON BHA-1 HEADPHONE AMP, SHUNYATA DENALI 6000/S v2(2) EVEREST 8000 POWER CONDITIONER(2) ALTAIRA CG & SG HUBS, AMR-DP777-SE DAC, SILENZIO MUSIC SERVER, TAD REFERENCE ONE MK2 LOUDSPEAKERS, QUADRASPIRE RACK, WW PLATINUM CABLES Accuphase/Canton System: ACCUPHASE E800 INTEGRATED, DP570 CD/SACD PLAYER, T1200 FM STEREO TUNER, DG-68 VOICING EQUALIZER, PS530 POWER SUPPLY, CANTON REF K3’s, CANTON REF K5’s, SILENZIO MUSIC SERVER, HRS MXR REFERENCE MAHOGHANY RACK w/ M3X2 SHELVES, WW GOLD CABLES |
#3
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When I owned a C2200 I bought an LED light kit from AudioClassics and it came with new blue colored gels that just sat in the meter window.
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“Life is what happens to you while you’re busy making other plans” |
#4
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Hi Miner--
I think my current as-came-from-factory meters have a blue film also. But the yellow still shows thru. Are you saying the blue stuff that comes with the LED kit masks the yellow so you no longer see it? |
#5
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There are two things that could be at work here. The Blue gel filters may have faded, or the meter housings themselves may have discolored from the heat of the bulbs.
In your case I suspect it is the meter housing itself that has discolored. The cure is to replace both meters.
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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 |
#6
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Last time I checked I think those meters go for around $200 each.
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#7
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Had a similar issue with the meters of an MC2125. Swapping of lamps to blue LEDs pretty much eliminated the problem however the faded plexiglass is still visible when the amplifier is turned off but it's not overly objectionable.
The purpose of the blue plexiglass is to keep the meter windows appearing blue when the unit is turned off. |
#8
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No I cannot say it will mask the yellow but new gels May certainly help. I had heard the c2200 bulbs get hot so that is why I decided at the time for the LED kit.
__________________
“Life is what happens to you while you’re busy making other plans” |
#9
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As I told you elsewhere I have and do believe pics were posted.
It is easier to post pics elsewhere. |
#10
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Got my Answer!
Happy to report I did get an answer over on Audiokarma.
(Yes c_dk I found your reply over on the other site and replied to you there. Would like some more info on how the meters come apart if you will.) c_dk has already done just as I was proposing (but he sanded off the discoloration vs my idea of painting). I think his solution is better, as it avoids any chance of paint cracking or flaking over time. I thought paint might have less tendency to yellow again vs the plastic that has proven it can yellow. But I'm sure once I add an LED kit the yellow won't return. Of course the meters once exposed are fragile and great care must be taken. But it looks straightforward. |
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