Post questions or comments about the C84 here.
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- Assembly Instructions and Schematic for C84 Rev 1.9.1
by gjjr13 » Tue Aug 21, 2018 11:10 am
- 0 Replies
- 6556 Views
- Last post by gjjr13
Tue Aug 21, 2018 11:10 am
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- c84 v1.3 repair
by brekke » Sun Jan 31, 2016 2:12 pm
- 0 Replies
- 2291 Views
- Last post by brekke
Sun Jan 31, 2016 2:12 pm
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- Burson Audio Op-amps in a C84 for U1,U2,and U3
by ellingboe » Wed Dec 16, 2015 1:30 pm
- 0 Replies
- 1630 Views
- Last post by ellingboe
Wed Dec 16, 2015 1:30 pm
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- Rev 2.1 and BOM discrepancies
by noysie » Tue Dec 08, 2015 5:26 am
- 0 Replies
- 1735 Views
- Last post by noysie
Tue Dec 08, 2015 5:26 am
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- C84 low output and muffled sound
by ericeagle » Wed Oct 09, 2013 10:02 am
- 1 Replies
- 1896 Views
- Last post by Soundman1402
Fri Sep 25, 2015 1:45 pm
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- Resistor values as tested are not within tolerance range
by jody » Sun Mar 08, 2015 1:41 pm
- 1 Replies
- 1681 Views
- Last post by jody
Tue Mar 10, 2015 4:59 pm
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- c84 no input signal
by jazzyjerk » Tue Sep 02, 2014 11:09 am
- 0 Replies
- 1622 Views
- Last post by jazzyjerk
Tue Sep 02, 2014 11:09 am
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- phase differences between versions?
by PJD3 » Mon Jul 14, 2014 7:01 pm
- 0 Replies
- 1613 Views
- Last post by PJD3
Mon Jul 14, 2014 7:01 pm
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- Technical HTML Issue on the C84 page
by jfang5000 » Mon Mar 10, 2014 5:27 pm
- 0 Replies
- 1850 Views
- Last post by jfang5000
Mon Mar 10, 2014 5:27 pm
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- C84 lost phantom power
by Mewzishun » Sat Feb 15, 2014 2:39 am
- 2 Replies
- 1841 Views
- Last post by Mewzishun
Fri Feb 21, 2014 10:31 am
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- Voltage at Step 36
by birddogstudios » Tue Feb 04, 2014 8:51 am
- 1 Replies
- 1767 Views
- Last post by birddogstudios
Tue Feb 04, 2014 1:40 pm
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- C84 died after 5 years
by mltamisin » Tue Apr 23, 2013 5:57 pm
- 4 Replies
- 2490 Views
- Last post by mltamisin
Tue Oct 29, 2013 11:59 am
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- rev 1.9.1 vs rev 2.0 -- sonic differences?
by sardonic_z » Wed Jun 19, 2013 8:52 am
- 0 Replies
- 1828 Views
- Last post by sardonic_z
Wed Jun 19, 2013 8:52 am
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- Hot U1 and U3 (Rev 1.9.2)
by rtroast » Fri May 10, 2013 2:47 pm
- 5 Replies
- 2155 Views
- Last post by rtroast
Mon May 20, 2013 11:47 am
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- Fried R71?
by REAMP » Tue Mar 19, 2013 12:20 pm
- 1 Replies
- 1700 Views
- Last post by tpryan
Tue Mar 19, 2013 10:17 pm
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- Maximum level
by mr6100 » Sun Feb 24, 2013 1:37 am
- 2 Replies
- 1777 Views
- Last post by mr6100
Tue Feb 26, 2013 12:56 am
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- Step 40 voltage issues
by codependency » Thu Dec 20, 2012 10:34 pm
- 0 Replies
- 1905 Views
- Last post by codependency
Thu Dec 20, 2012 10:34 pm
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- Thank You Tim!
by Idiophone » Mon Jul 30, 2012 9:32 am
- 0 Replies
- 2004 Views
- Last post by Idiophone
Mon Jul 30, 2012 9:32 am
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- microphones
by wentylaa » Mon Jul 09, 2012 9:37 pm
- 0 Replies
- 2019 Views
- Last post by wentylaa
Mon Jul 09, 2012 9:37 pm
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- R60
by jdier » Thu Jun 28, 2012 1:45 pm
- 1 Replies
- 1767 Views
- Last post by DPLight
Fri Jun 29, 2012 7:53 am
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- microphones
by hunybena » Thu Jun 28, 2012 11:41 pm
- 0 Replies
- 1930 Views
- Last post by hunybena
Thu Jun 28, 2012 11:41 pm
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- My problem has evolved
by Hanitpal » Wed Apr 25, 2012 11:13 pm
- 0 Replies
- 1996 Views
- Last post by Hanitpal
Wed Apr 25, 2012 11:13 pm
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- c84 high noise floor
by ronny516 » Thu Aug 16, 2007 6:43 am
- 1 Replies
- 2601 Views
- Last post by Hanitpal
Wed Apr 25, 2012 2:05 pm
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- Hello forum, please help
by Hanitpal » Mon Apr 23, 2012 5:44 pm
- 3 Replies
- 2168 Views
- Last post by Hanitpal
Wed Apr 25, 2012 10:07 am
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- C84 vs. Sytek MPX4A comparison?
by niccolo » Mon Aug 27, 2007 2:07 pm
- 6 Replies
- 4942 Views
- Last post by PJD3
Sat Mar 31, 2012 7:02 am
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- BOM discrepancies March 2012
by johndykstra » Wed Mar 28, 2012 9:06 am
- 0 Replies
- 2026 Views
- Last post by johndykstra
Wed Mar 28, 2012 9:06 am
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- SOIC-14 Transistors
by roberto.missoli » Sun Jan 29, 2012 10:08 am
- 1 Replies
- 1946 Views
- Last post by tpryan
Mon Jan 30, 2012 1:16 pm
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- Older and new C84 for stereo recording.
by PJD3 » Tue Jan 12, 2010 9:56 am
- 5 Replies
- 3732 Views
- Last post by vinylvalet
Sun Jan 22, 2012 4:22 am
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- C84 with custom PSU and case
by G-Sun » Sun Dec 04, 2011 8:10 am
- 3 Replies
- 2619 Views
- Last post by G-Sun
Tue Dec 06, 2011 4:49 am
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- So...I noticed that most posts are about problems
by jhellenl » Mon Aug 01, 2011 10:28 am
- 1 Replies
- 2237 Views
- Last post by DPLight
Mon Aug 01, 2011 1:45 pm
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- C84 Assembly Instructions rev 1.3 needed
by jeanlucash » Sat Jul 23, 2011 4:29 am
- 2 Replies
- 2141 Views
- Last post by jeanlucash
Tue Jul 26, 2011 10:44 am
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- weird voltages, I'm a noob
by biasply » Sat Jun 18, 2011 6:18 am
- 8 Replies
- 3205 Views
- Last post by jamesnorth
Mon Jul 04, 2011 5:59 am
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- New Build - Blew Q7 - SOLVED
by jamesnorth » Mon Apr 18, 2011 3:32 pm
- 10 Replies
- 4025 Views
- Last post by jamesnorth
Tue Jun 14, 2011 7:05 pm
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- used C84 DOA.. help!
by alfunko » Tue May 10, 2011 12:44 pm
- 5 Replies
- 2723 Views
- Last post by tpryan
Sun May 15, 2011 8:22 am
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- white noise, almost no mic signal
by jdier » Sat Apr 09, 2011 12:16 pm
- 2 Replies
- 2427 Views
- Last post by valencyna
Fri Apr 15, 2011 10:08 pm
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- BOM, Ass Inst, Schematic for C84 Rev 1.9.1
by jdier » Mon Apr 04, 2011 10:36 am
- 3 Replies
- 2434 Views
- Last post by jdier
Sat Apr 09, 2011 9:21 am
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- Resistance for 10k0 at R26,27,29,30
by jdier » Mon Apr 04, 2011 11:49 am
- 4 Replies
- 2502 Views
- Last post by jdier
Mon Apr 04, 2011 12:30 pm
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- incorrect voltage at R8 and L3, L4
by es331 » Sat Feb 19, 2011 5:39 pm
- 1 Replies
- 2152 Views
- Last post by tpryan
Fri Feb 25, 2011 11:10 am
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- C84 white noise/hiss
by smalltownpoet » Sun Jan 09, 2011 9:57 pm
- 1 Replies
- 2358 Views
- Last post by tpryan
Mon Jan 10, 2011 7:06 pm
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- c84 rack with oscillation
by fft512 » Fri Dec 31, 2010 7:34 am
- 3 Replies
- 2557 Views
- Last post by tpryan
Sat Jan 01, 2011 5:06 pm
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- 36-Adjust R64 & R68 +-18V, set R8 and R9 [b]BELOW[/b] 13
by hugo_insider » Wed May 13, 2009 11:15 pm
- 3 Replies
- 3115 Views
- Last post by fifteenrabbits
Sun Dec 12, 2010 9:26 pm
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- IC Voltages
by Karl » Sun Nov 14, 2010 3:24 pm
- 3 Replies
- 2463 Views
- Last post by tpryan
Mon Nov 22, 2010 12:06 pm
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- Step 39 L3 and L4 voltage
by idoot » Fri Nov 05, 2010 9:19 pm
- 4 Replies
- 2874 Views
- Last post by idoot
Wed Nov 10, 2010 4:30 pm
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- C84 making helicopter sound
by odra » Thu Oct 28, 2010 7:02 pm
- 1 Replies
- 2208 Views
- Last post by tpryan
Mon Nov 01, 2010 8:38 am
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- C20 smoking
by swemoll » Sun Oct 17, 2010 10:51 am
- 4 Replies
- 2715 Views
- Last post by swemoll
Tue Oct 19, 2010 7:56 am
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- C84 circuit behavior interest and solo PCBs?
by orbitage » Wed Sep 08, 2010 12:02 am
- 1 Replies
- 2232 Views
- Last post by tpryan
Wed Sep 15, 2010 3:03 pm
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- Custom Dual C84 Rack/PSU. Help please?
by pablobolche » Wed Jul 28, 2010 11:17 am
- 1 Replies
- 2370 Views
- Last post by tpryan
Thu Jul 29, 2010 10:52 am
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- U5 getting rather hot, and only sending about 13VDC
by nickapaton » Mon Jun 07, 2010 2:11 pm
- 1 Replies
- 2332 Views
- Last post by tpryan
Tue Jun 08, 2010 10:41 am
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- C84 working fine, then blew up, now shows problems
by monkeyxx » Wed May 26, 2010 1:05 pm
- 1 Replies
- 2422 Views
- Last post by tpryan
Wed May 26, 2010 1:16 pm
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- Need help with bias adjustment - troubleshooting C84
by oddur » Wed Mar 10, 2010 9:13 am
- 11 Replies
- 4281 Views
- Last post by oddur
Tue Apr 13, 2010 11:20 am
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