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Total voltage output of γ3

gamma3, gamma24 (plug-in for the γ3)

Total voltage output of γ3

Postby mattattnet » March 26th, 2017, 7:39 am

Hi,

One of the amps I want to use with the y3 would be a First Watt F4 amp, where I need about a 10 volt output from the pre outs.

Is that possible single ended, with the y3 in any of its gain configurations?

Thanks,
Matt
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Re: Total voltage output of γ3

Postby amb » March 26th, 2017, 3:35 pm

The default output voltage at 0dBFS is 2Vrms from the unbalanced outputs, or 4Vrms from the balanced outputs.
You can change the gain of U3 on the α24 module to get more output voltage from the unbalanced output. See the α24 website for details.
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Re: Total voltage output of γ3

Postby mattattnet » March 26th, 2017, 4:14 pm

thanks!
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Re: Total voltage output of γ3

Postby amb » March 27th, 2017, 1:46 am

Oh, and if you want to get 10V rms output from the γ3's unbalanced outputs, you should also raise the analog power supply (σ22) output voltage to ±15VDC in order to avoid clipping. You will also need to attach some kind of additional heatsinking to γ24's U12 and U13, because their heat dissipation will increase from about 0.3W to 0.6W.

In fact the above should be done if you want the γ3 unbalanced output to exceed about 7V rms. 10Vrms is the maximum output because ±15V is the maximum supply voltage of the α24 opamps.
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