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Post subject: 65 Deluxe Reverb Reissue question regarding external speaker
Posted: Tue Apr 24, 2012 6:18 am
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I am looking at purchasing a DRRI for my strat and lp. If you plug into the external speaker jack, does that disable the internal speaker? I am looking to run into an ART DI box into a pa so I don't have to mic the amp and didn't want to fry the output transformer.

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Post subject: Re: 65 Deluxe Reverb Reissue question regarding external spe
Posted: Tue Apr 24, 2012 7:11 am
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Hi TonyMealer,

When using an external speaker cab plugged into the external speaker jack, the internal speaker still works. The amp will work fine with both jacks used, as long as the total speaker impedance is 4, 8, or 16 ohms. The two speaker jacks are wired in parallel, so the internal 8 ohm speaker used with an external 8 ohm speaker will yield 4 ohms total. The amp will develop the most power out with an 8 ohm total speaker load. Using more or less than the amp's rated impedance, and the amp will not give full power. There is a point when the impedance can be too high, so don't go above a two to one mismatch. :idea:

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