Discussion in 'McIntosh Audio' started by Thinker, Aug 15, 2016.
Does this increase the value, like improperly minted coins?
Well, all the Mc gear I have with XLR's follows convention which makes me think this could be an error....
Well depending on the type and style of XLR used, the hole size is different from male to female as well, so when the panel was pressed, it may have been pressed with the wrong hole.....who would know, its a strange anomaly thats for sure.
Or, maybe, a previous owner had the unit modified/changed.
What is the history of Backwards Jack?
I might do, unless they did a whole run like this and swept the error under the mat.....
Seems a call to Mc might bottom it out...unless one of the crew chimes in.
A customer could have changed it to fit some goofy Chinese amp or the likes, and or ordered it that way, but it really is still wrong and would need adapters to work for others.
the manual shows female outlets ..http://manualzz.com/doc/1572361/mcintosh-c35---service-operating-instructions
If you look at the pics on the first page, it seems there is another one apart from the OP's one which has this.
Looks like they use the Neutrik connectors that use the same hole size for male and female...
Maybe they ran out of males on that run....lol....
Yeah I'd call up McIntosh, I reckon they would change them to males for no charge......
I wonder if this was early days for McIntosh using XLR's and there was confusion in the conventional standards?
They seem to have corrected it as you can see in the pics of the two C35's on the first page.
maybe they changed at at a certain serial number .
lower number in the pics shows female so maybe they realised somewhere between those numbers ..someone on the end of a phone might know ..or send some leads out for free .
Wow. Wasn't the C35 the first Mc pre with XLR outputs? Maybe the first few dozen units were shipped that way before they caught the error.
I'm sure ron-c, c_dk, or twiiii would recall.
Yeah thats what I think it might be too....
Now, if that C35 also had Male RCAs on the rear panel . . . that'd be something.
I'll give them a call and see what I can findout
Do a wiki search for Canon XLR.......until 1990 or so there were few worldwide standards that followed Jim Canon's early design. European, Japanese, and American manufacturers followed their own national conventions.
The many footnotes are interesting tidbits highlighting the confusion.
The C35 was the first Mac with Canon outputs, as we called them back then, that I can remember. The MC7100,7200, and 7300 were the first amps.
Pin 3 hot was a American tradition, while pin 2 was Europes choice. While the male pins pointed towards the signal flow for some, many Japanese manufacturers insisted they should go the other way.
Mac must have changed the connectors to follow the AES published standards that came out in the middle of the preamps production run, sometime in 1990. If I get some time tomarrow I will pull the amp and preamp schematics and see what pin is "hot".
I still have to correct myself and call them XLR's, because I still tend to call them canon....the young folk have no idea what I am talking about!!
I have been around XLR pro gear since the '80s and I have never seen Japanese gear following anything other than Male=output convention....
However in New Zealand here we used American, UK and Japanese gear which was always a challenge amalgamating pin 3/pin 2 standards!!
Would be interesting to see what McIntosh's reasoning was.........I'm betting McIntosh is pin 2 hot.
Well, I don't know why the male outputs were used, but it was not a mistake and it was not an anomaly. Nor a special order nor consumer DIY change.
The early C35's were made with male outputs. And concurrently, the C36 (export), C37 and C38 also used the male XLR outputs. It looks like late production C35 and then later pre-amps were produced with female outputs.
I had a Shure M67 with male mic inputs. . Never understood why they did this.
Just did a bit of research, all the images I could find of the M67 showed Female XLR mic inputs....perhaps yours was modified?
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