Krell made a series of amps called FPB - Full Power Balanced. They were all Class A amps, but not in a standard way. They had an auto-bias circuit and did not push full Class A all the time. You can tell this because the amps had an idle current that was much less than full power output. Their new "Chorus/Duo/Solo" series of amps are very similar to this.
Help me spec n class A AMP, power calculation 85dB @ 1W @ 1metre
I was playing few pieces and recoding dB levels on my phone. After playing few tracks I see some parts of music sustains at 88db and peaks at 96db. I do like to hear music at this level for short periods of time.
I am using the following calculator: https://geoffthegreygeek.com/calculator-amp-speaker-spl/
Sitting at 10 feet away from speakers I see the following numbers:
Assumption amplifier headroom of 1.5 dB, 10 feet distance
For 88db 1 Watt + 14.2 dB requires an amplifier power of 26 Watts
For 96db 1 Watt + 22.2 dB requires an amplifier power of 165 Watts
For 102db (room SPL losses) 1 Watt + 28.2 dB requires an amplifier power of 658 Watts (Ridiculous?)
It would be great if I can go get a class A mono blocks that can do sustained 200 Watts for each speaker @ 8ohm/6ohm and call it day but I got no dough for that.
How do I spec for a good amp(and may be integrated). I would like something that can sustain 35-50 Watts for class A and have reserves for peak of 200 Watts.
I am using the following calculator: https://geoffthegreygeek.com/calculator-amp-speaker-spl/
Sitting at 10 feet away from speakers I see the following numbers:
Assumption amplifier headroom of 1.5 dB, 10 feet distance
For 88db 1 Watt + 14.2 dB requires an amplifier power of 26 Watts
For 96db 1 Watt + 22.2 dB requires an amplifier power of 165 Watts
For 102db (room SPL losses) 1 Watt + 28.2 dB requires an amplifier power of 658 Watts (Ridiculous?)
It would be great if I can go get a class A mono blocks that can do sustained 200 Watts for each speaker @ 8ohm/6ohm and call it day but I got no dough for that.
How do I spec for a good amp(and may be integrated). I would like something that can sustain 35-50 Watts for class A and have reserves for peak of 200 Watts.
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- 15 posts total
- 15 posts total