Dating jensen speakers code

You can catch his podcasts at or email him at [email protected] Drivers such as Jensen, Utah PA8JC, Al Ni Co Jensens, ROLA speakers. That’s probably a moot point, though—experience tells me that most original speakers in amps of that age are substantially fatigued and generally sound very weak. It's a great-sounding speaker, but with a sensitivity rating of 100 d B, it’s relatively efficient and would probably be pretty loud in that amp.Let’s take a look at a couple speakers from Warehouse Guitar Speakers (wgs4.com) so I can better explain this.For example if you have 220325 on a speaker, you can tell that it's a Jensen speaker, but the year is either 1973, 1963, or 1953 from the '3', and the '25' is the week of production.The model type, or number, is sometimes stamped on the speaker frame as well; for example P10R, or C10Q.There are quite a few potential causes of this symptom, and it’s impossible to diagnose your amps without having them on the bench.

These "Code" formats were not completely standardized, but a little deciphering will generally yield the info that's needed to identify the speaker in question.

Their G12C/S speaker is listed as 99.79 d B, while their G12C is listed at 96.10 d B.

The G12C is more than three d B lower, which equates to approximately half the loudness of the C/S.

You should be able to find a number stamped somewhere on the speaker’s frame.

The format may look like this: 220 637 Here the number 220 designates the speaker as a Jensen, and 637 indicates a production date of the 37th week of 1956 or 1966.

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Original cone, surround, dust cap and mounting gasket in great condition. Passed our audio generator sweep test and is ready to install. 8.5 Jensen 15" Al Ni Co magnet, "Gold Frame" guitar / Hi-Fi speaker. Passed our audio generator sweep test and is ready to install.

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