I have a pair of 1977 601s that I bought new. What serial numbers were issued for the 601s in 1977. I have to think mine are pretty early (but don't know for sure).
Thanks for reaching out to us and welcome!
Regarding your query, we no longer use the same system for serial numbers as we did in 1977. However, If you reach out to your local technical support agent, they will be more than happy to help. Click the LINK HERE, select your country and scroll down to 'Contact Us'.
If there is anything else we can do, please reach out to us again!
I tried as you suggested and wasn't able to get anywhere since it was requesting my serial number. When I entered my serial number (01472), the database didn't recognize it. Any other thoughts?
Our current serial number database format only goes back to the mid-90s, mkopf001. I'm sorry, you will be unable to check the serial.
For your information, the 601 series availability dates were:
601 I - 1977-1982
601 II - 1982-1986
601 III - 1986-1994
601 IV - 2001-2004
I can confirm all of these speakers are no longer serviceable due to their age.
I hope this helps!
Thanks for getting back in touch!
I've found the following information regarding our serial numbers/date of manufacture (a.k.a DOM ) codes:
Products introduced before 1996 have the serial number and the date of manufacture on two separate labels.
SERIAL NUMBER (SN)
Before 1996, there was no specific format for serial numbers, though some serial numbers included an abbreviation of the component name in the first six digits, as shown in the bottom left of the example below.
DATE OF MANUFACTURE (DOM)
Before 1996, the DOM label contained the plant information. Example: 09104
1 The Plant Code identified where the item was manufactured
2 – 3 Identified the last two digits of year 19XX when the item was manufactured
4 – 5 Identified the week number when the item was manufactured
I hope this helps!
Thanks for the info on the DOM. I was hopeful when I was ready about the DOM since my serial number is also 5 digits. Unfortunately, this doesn't solve the mystery since my 01479, doesn't match up with either the year or month (unless, of course, there were 79 months back then:-). Still trying to figure out how early in the production run these speakers were made.
It could be that they did things differently back in the 70s, 01479, more than likely means:
0 = Plant = (not sure which plant this would have been, this isn't documented)
14 = Week = 14th week (April 2, 1979 April 8, 1979)
79 = Year = 1979