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Old 28th September 2020, 11:05 PM   #2551
doug s. is offline doug s.  United States
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i've read that apollo models have the updated interfaces as the medalion interfaces on the 1+1's and 2+2's - are these apollo interfaces interchangeable w/the the 1+1's and/or 2+2's? and are the 1+1 & 2+2 interfaces interchangeable w/each other?

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doug s.
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Old 28th September 2020, 11:11 PM   #2552
mraudioguru is offline mraudioguru  United States
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What's an Apollo Model?

Yes, the 1+1 and 2+2 interfaces are interchangable. You will need to move the "tap" from a 2 panel (1+1) to a four panel (2+2). The taps are inside the interface. You just move a wire to the correct location.

Steve's - Forum - Acoustat - 8, Interfaces, taps on audio transformer

Last edited by mraudioguru; 28th September 2020 at 11:15 PM.
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Old 29th September 2020, 02:18 AM   #2553
doug s. is offline doug s.  United States
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sorry, my bad; not sure what i was thinking. i meant spectra, not apollo.

thanks,

doug s.
Quote:
Originally Posted by mraudioguru View Post
What's an Apollo Model?

Yes, the 1+1 and 2+2 interfaces are interchangable. You will need to move the "tap" from a 2 panel (1+1) to a four panel (2+2). The taps are inside the interface. You just move a wire to the correct location.

Steve's - Forum - Acoustat - 8, Interfaces, taps on audio transformer
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Old 29th September 2020, 07:34 PM   #2554
AcoustatAnswerMan is offline AcoustatAnswerMan  United States
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The Spectra interfaces are entirely different than the MK121 series interfaces, and are not interchangeable. However, the Spectra transformers do incorporate lessons learned from the Medallion era (including what not to do!).
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Old 29th September 2020, 07:48 PM   #2555
mraudioguru is offline mraudioguru  United States
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Sorry, I should have clearer. The MK121 interfaces ARE interchangeable between the 1+1 and 2+2, but as Andy states, the Spectra interfaces are not interchangeable with the MK121 series.

Clear as mud?
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Old Yesterday, 04:53 AM   #2556
doug s. is offline doug s.  United States
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i had also queried roy esposito, and got this answer:

"----Spectra 22, 2200, 33, 3300, 44,4400, 66 and 6600 interfaces
are all Medallion by design. (Spectra 11 or 1100 are not)
You can use them with the classic (Non-Spectra) panels
but you would only connect the speaker such as 2+2 or 1+1
to the Blue and White and Red interface output connections.

A 22 or 2200 Spectra interface can match with Model 1+1
A 44 or 4400 Spectra interface can match with Model 2+2
However....physically ...Spectra interface size dimensions are way different
compared with MK121 interfaces. The panel-to-interface connectors
are different too....so some soldering or adapting would be required."


thanks,

doug s.
Quote:
Originally Posted by mraudioguru View Post
Sorry, I should have clearer. The MK121 interfaces ARE interchangeable between the 1+1 and 2+2, but as Andy states, the Spectra interfaces are not interchangeable with the MK121 series.

Clear as mud?
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