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PWR16 amp input sensitivity 6 years 3 weeks ago #21367

  • Skylinestar
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What's the input sensitivity of PWR16 amp?
Any reason why minidsp is not making a PWR8 with more beefy amp?? It will definitely be a better match for the DDRC88.
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PWR16 amp input sensitivity 6 years 3 weeks ago #21370

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It specifies voltage gain of 25.8 db on the spec sheet.

The advertised power ratings for the PWR-16 amplifier are way too confusing for the average user.
The channels are derated depending upon how many are used......peak power versus RMS.....4 ohm versus 8 ohm....etc, etc.

If you work the various power ratings backwards to yield a sensitivity number it can get confusing. I think the five-channel peak rating probably provides an indication of the voltage clipping point. If I did the math correctly, I think an input of 0.75VRMS would drive any of the channels to voltage clipping.

Ultimately, what you have here is a fairly low powered amplifier with lowish voltage gain.

Dave.
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PWR16 amp input sensitivity 6 years 2 weeks ago #21398

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Already a good answer from Dave. Here is a bit more:

The input sensitivity in SE mode is: 0.92Vrms at 1kHz for 80W into 4 ohm output
It is calculated as follows:
Output voltage at 80W into 4 ohm = 17.89Vrm
Gain of 80AM2 = 25.8dB = 19.5
=> Input sensitivity = 17.89 / 19.5 = 0.92Vrms

The input sensitivity in BTL mode is: 0.92Vrms at 1kHz for 160W into 8 ohm output
It is calculated as follows:
Output voltage at 160W into 8 ohm = 35.78Vrm
Gain of 80AM2 = 31.8dB = 38.9
=> Input sensitivity = 35.78 / 38.9 = 0.92Vrms

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PWR16 amp input sensitivity 6 years 5 days ago #21711

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How about the SNR in 1W?

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