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Post subject: Re: Super Six Reverb
Posted: Sun Mar 18, 2012 2:02 pm
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timmyhatch wrote:
It seams the two 10" speakers in the combo are wired in series. Not sure what ohms this will make.


If your speakers are original to the amp, they are 16 ohms each. Wired in series, that produces a total impedance load of 32 ohms -- much too high for the amp to operate efficiently. I recommend re-wiring them for parallel configuration.

Arjay

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Post subject: Re: Super Six Reverb
Posted: Sun Mar 18, 2012 4:40 pm
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So it still comes down to which speakers are in the cabs. If they are the stock 16ohm, all four in parallel, would be a great set-up. This amp does have a parallel ext speaker jack, right ? Art

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Post subject: Re: Super Six Reverb
Posted: Sun Mar 18, 2012 11:07 pm
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Well I will try to find out the speaker ohms and wiring.
Man these amps have 10 valves. If mine has 10 tubes, 100w with master volume version...will it be valve or solid state rectifier?


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Post subject: Re: Super Six Reverb
Posted: Sun Mar 18, 2012 11:29 pm
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Tim, the amp would be a solid state rectifier design. If you can examine the speakers, for any identification info, that would help. Actually, a test with a volt-ohm meter really takes any question out of the consideration. Art

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Post subject: Re: Super Six Reverb
Posted: Sun Mar 18, 2012 11:47 pm
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Nothing other than 'fender special design' they have a square shape back on them except for 1 that has a round back. (must have been a replacement). They look old enough to be the originals. They are in series, they have a blue label


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Post subject: Re: Super Six Reverb
Posted: Mon Mar 19, 2012 2:10 am
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ok so, if the 2 speakers are 16ohms - wired in series will make it 32ohms load. This would be ok for a 4 (5.2) ohms amp. Except the 2 speakers would be under rated for 100w amp.

But, if the 2 speakers (assuming still that they are 16ohms) - wired in parallel will make it 8ohms load. Tis too would be ok for a 4ohms amp. Though speaker watts still under rated for 100w amp.

- now assuming the speakers are 16ohms wired in parallel, connected to the extension cab in parallel, with those 2 16ohms speakers also in parallel...Thus making the speaker array equaling 4ohms load. Perfect for my Super Six, right? But what would the wattage rating be for all 4 of these wired in parallel? Assuming they are original speakers?


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Post subject: Re: Super Six Reverb
Posted: Mon Mar 19, 2012 5:10 pm
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Arjay said the stock speakers were 25 watt. Depending on the relacement speaker, those three would give you 75 watts(but they're not new). BTW Did you take a look at the speaker frame edges, for a code? Art

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Post subject: Re: Super Six Reverb
Posted: Mon Mar 19, 2012 6:28 pm
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aclempoppi wrote:
Arjay said the stock speakers were 25 watt.


At least somebody remembers what I wrote!

Arjay

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Post subject: Re: Super Six Reverb
Posted: Mon Mar 19, 2012 8:38 pm
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064121
137 7207


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Post subject: Re: Super Six Reverb
Posted: Mon Mar 19, 2012 8:46 pm
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"064121" was Fender's in-house P/N for a Super Reverb loudspeaker. The "137 7207" identifies it as made by CTS in the 7th week of 1972.

Arjay

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Post subject: Re: Super Six Reverb
Posted: Mon Mar 19, 2012 9:02 pm
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So Tim, we're gettin' closer to the real scoop. I guess my main concern, now, would be if the amp is the 100 watt or the 135 watt version. I don't have enough experience with these particular amps to know. Arjay, wouldn't the output trans code tell us that? Art

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Post subject: Re: Super Six Reverb
Posted: Mon Mar 19, 2012 10:27 pm
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He indicated previously that the amp is the 100-watt edition. In practical terms that means an output tranny with a single secondary tap (4 ohms) and power enough to fry those OEM CTS speakers under maximum-volume conditions even if he had four of them available.

Arjay

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Post subject: Re: Super Six Reverb
Posted: Mon Mar 19, 2012 11:44 pm
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OOPS, Now where are my reading skills? Art

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Post subject: Re: Super Six Reverb
Posted: Tue Mar 20, 2012 1:48 am
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If four of these 25w CTS's wired in parallel take the overall wattage to 100w? Whether its wired parallel or series?

I know the 100w speaker config. wont handle a 100w amp at full volume (especially the age of these). But I quite like to keep the speaker rating close to the amp rating.

Thanks for all of you for this vast knowledge of vintage fenders!


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Post subject: Re: Super Six Reverb
Posted: Tue Mar 20, 2012 4:34 am
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If I was to take it back to stock, how do I get 5.3ohms from 6 16ohms speakers?


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