Matched Pair Vintage 1973 Celestion G12H 30w T1969 12 Greenback Speakers 12ohms. This is an original pair of Celestion G12H Greenback speakers dating to 1973. They are each 12ohms and test well on a multimeter as you can see, and sound good with audio in. These are classic speakers renowned for their capabilities. Please have a close look at the high resolution photographs below, as these form part of our description. This item is in the category "Musical Instruments & DJ Equipment\Guitars & Basses\Guitar Amplifiers". The seller is "themusiclocker" and is located in this country: GB. This item can be shipped worldwide.