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Carver C-1 Pre-amp issues
nwinjimOffline
#1 Posted: Wednesday, January 18, 2017 1:21:05 AM(UTC)
 
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nwinjim

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Really glad to have discovered this forum!  I purchased the entire suite of Carver products in the early 1980's and have enjoyed many hours of use from them.  About 10 years ago, my C-1 pre-amp started to "act up."  When I increased/decreased the volume, a rather loud crackle sound was emitted from my speakers.  This has gotten so bad that I have not used the unit in a decade and it has been in storage.  I was always afraid that my speakers would be damaged by continued use.  The noise is LOUD! 
I would really like to get the unit repaired.  Any clue what is causing it, or a place to take it in the Chicagoland area?  Also, I am looking for a replacement knob on the front panel (my infant son tore it off many years ago and I have been using pliers to change from one input to another).
Many thanks for helping a newbie. 
kve777Offline
#2 Posted: Wednesday, January 18, 2017 1:25:49 AM(UTC)
 
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kve777

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Welcome! 
Sorry about your C-1 troubles. Sounds like dirty or damaged volume potentiometer. Member AR9Jim isn't far from Chicago. He's doing repairs. Contact him, or we can get him to contact you. 
There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakersare used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.

H.H. Scott '59
1 user thanked kve777 for this useful post.
loner_t on 1/18/2017(UTC)
Ar9JimOffline
#3 Posted: Wednesday, January 18, 2017 2:00:50 AM(UTC)
 
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I'll be near Chicago on Thursday. I have a knob as well. Pm sent.
6 users thanked Ar9Jim for this useful post.
zumbini on 1/18/2017(UTC), loner_t on 1/18/2017(UTC), nwinjim on 1/18/2017(UTC), aslan7 on 1/18/2017(UTC), AndrewJohn on 1/18/2017(UTC), Daddyjt on 1/20/2017(UTC)
loner_tOffline
#4 Posted: Wednesday, January 18, 2017 2:20:22 AM(UTC)
 
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loner_t

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Ar9Jim;293395 wrote:
I'll be near Chicago on Thursday. I have a knob as well. Pm sent.
 
Wow, two Jim's together. Watch out for Time-Space continuum ruptures.  
 
Welcome to CS,  nwinjim 

Music 2Channel
TX-11a, Technics SL1600 (TT weight courtesy - the Dude), 2 x BillD Silver C1 (4Krow), 2 x M500t (MkII - Dennis Miller)
Speakers 1 - ADS L1290s/L810s/L710s

2 x Silver 9Ts (Dennis Miller - recapped), Sony CDP-X707ES, Acoustic Research Tube LS5 MkII, SD/A-360,
Speakers 2 - Polk SDA-1Cs + Sunfire TS-EQ10s (Rockster-rebuilt)

In the wings...
2 x M500t (MkII - someday), M500t (WIP - MkII - Kve777)
B&K ST140 (Courtesy - AR9Jim), Infinity RS-5Bs, M500 (AR9Jim - recap)

Music 2Channel (Black Stack)
SD/A-490t, BillD C11 (Dennis Miller), TFM-42 (WIP - Fill35U - courtesy BillWoJo)

Music 2Channel (Soundstream)
DA-1, C1, T1, 2 x DA2 (Mono), KEF - LS50, JLAudio E110

HT (7.1+)

Oppo BDP-105D, Toshiba HD-XA2, Pioneer CLD-D702,
2 x M500t MkII (Dennis Miller), 2 x M500t (MkII - WRF), M500t (BillD Refresh), KEF - LS50, 4 x Sonorous + JLAudio E110, Sunfire TS-EQ10
nwinjimOffline
#5 Posted: Wednesday, January 18, 2017 3:01:14 AM(UTC)
 
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nwinjim

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Wow, thanks for the quick responses. I will be in touch, Ar9Jim!
aslan7Offline
#6 Posted: Wednesday, January 18, 2017 3:15:09 AM(UTC)
 
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aslan7

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Hey welcome to the CarverSite nwinjim!

Great to have you on board.
Would love to hear more about your audio journey.
We love all things audio (& video) here. Post pics if you can. ...and please stay awhile.

Btw, hopefully a can of deoxit will fix your noisy C-1 volume knob.

Thank you again for posting!

will fly for food (& carver equipment)

1 user thanked aslan7 for this useful post.
nwinjim on 1/18/2017(UTC)
AndrewJohnOffline
#7 Posted: Wednesday, January 18, 2017 3:39:34 AM(UTC)
 
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AndrewJohn

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Welcome !  You are on a good path.  Stay a while, and share some experiences.  
 
I've owned much of the product line, like you.  What did you like the best?  What else is in your current setup?  Pics are important, too.
 
(I'm in the Chicago area too.) 
― ~ 🎼 ~ ―

"Works of art make rules; rules do not make works of art."

— Claude Debussy

― ~ 🎼 ~ ―

Primary: M1.0t MkII Opt2, C-1 BillD, DTL-200 MkII, AL III+, TX-11a, Dual 721

Secondary: M200t, C-2, TX-2, DTL-50, Epi 400, Miracord 770h
chiroacademyOffline
#8 Posted: Wednesday, January 18, 2017 4:16:42 AM(UTC)
 
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chiroacademy

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Welcome to the forum. This place and the people are awesome. Read up on the C1BillD mod it's something you are going to want to do and you'll kick yourself if you don't.
BarryGOffline
#9 Posted: Wednesday, January 18, 2017 6:14:30 AM(UTC)
 
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BarryG

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Welcome to the forum! , please tell us about the rest of your equipment, What kind of music do you enjoy? The techs here are fabulous, kick off your shoes , grab a beverage of your choice, turn up the volume and hang around a while!

As always turn up the volume, let the neighbors 'Feel the Groove!'

BarryG
Main System:
Technics SL-7 turntable, Carver TX-11B, Carver C-11 Pre-Amp (BillD MOD by Dennis Miller), Carver C-9 (4krow), Carver M-500t MKII (RichP modded repaired by Wayne aka WRF), Deconvolution Mask (DCM), Carver m-1.0t stock, Carver SDA 370 10 CD player, DBX 3bx-ds expander, DBX 120x-ds, TEAC A-2340R reel to reel,Music Fidelity X-10D Clone Tube Buffer, Cambridge Audio DAC, Dell Laptop, Douglas Connection interconnects x5, Douglas Connection speaker cables, Sony Blu-Ray, Salamander Archetype 5 shelf Rack in Black (x2), Sony XM Satellite Radio, Sunfire TSEQ10 Subwoofer, Carverfest Speakers, Polk SDA 1b speakers.

In Reserve:
Carver MXR-130 Receiver, Sangaen digital am/fm tuner (from BillD), Carver ALS (hybrid, modded for Bi-amp) will be for sale soon! Carver sd/a-390t x2 (one out for repair, other waiting for repair.)

For sale: Carver SD/A-370
2 users thanked BarryG for this useful post.
nwinjim on 1/18/2017(UTC), Dadvw on 1/18/2017(UTC)
nwinjimOffline
#10 Posted: Wednesday, January 18, 2017 1:59:43 PM(UTC)
 
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nwinjim

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Many thanks to all those who have responded both privately and publicly.  The multiple suggestions to purchase a can of Deoxit and use it to clean affected areas will be heeded SOON.  There seems to be a universal consensus that this is most likely the problem.  If this does not work, then my fallback will be to have it repaired by Jim in Rockford.  
I purchased my Carver components in 1981 (35 years ago), when I obtained my first "real good job" as a young man. There was a small boutique audio business nearby affiliated with Valparaiso University, Audio Junction (closed many years ago), where I learned about the Carver brand, as well as many others.  I treated myself with a purchase of a top line Bang and Olufsen turntable, and Carver C-1 pre-amp, Carver TX-11 tuner and Carver M1.5-t amplifier.  As a young man, I was totally smitten with sonic holography and Bob Carver's ingenuity.  I'm really glad to have found this site, and looking forward to re-kindling my relationship with Carver.    
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