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Hoffman Amps Forum image Author Topic: Using multiple output taps simultaneously?  (Read 2812 times)

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Offline passaloutre

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Using multiple output taps simultaneously?
« on: August 06, 2026, 06:41:53 pm »
Let’s say my output transformer has 4, 8, and 16 ohm taps. Can I connect an 8 ohm speaker to the 8 ohm tap and a 16 ohm speaker to the 16 ohm tap at the same time?

Offline kagliostro

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Re: Using multiple output taps simultaneously?
« Reply #1 on: August 06, 2026, 06:58:42 pm »
To me no

If you do that it halves the reflected impedance to the primary the same way as you connect a 4 ohm speaker to the 8 ohm tap or an 8 ohm speaker to the 16 ohm tap

What you can do is connect a 16-ohm speaker to the 8-ohm tap and a 32-ohm speaker to the 16-ohm tap simultaneously.
If a 32-ohm speaker isn't available, two 16-ohm speakers wired in series can be connected to the 16-ohm tap instead

Franco
« Last Edit: August 06, 2026, 07:13:27 pm by kagliostro »
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Offline passaloutre

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Re: Using multiple output taps simultaneously?
« Reply #2 on: August 06, 2026, 08:19:12 pm »
That makes sense. It’s like having two 8 ohm speakers connected to the 8 ohm tap

 


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