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Audio and Video Talk
General Discussion
Do we really need amplifiers with 100watts per channel?
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<blockquote data-quote="Johan" data-source="post: 1946" data-attributes="member: 80"><p>I 've been looking at a lot of data sheets the last couple of days especially at the signal to noise ratio vs output power together with the SNR vs frequency response, and can tell you that a lot of chipamps are quite bad in this (SNR vs OP) respect. With most chipamps when you get close to +-60% of full power the SNR jumps up quite significantly.</p><p></p><p>I'm busy with a chipamp project using the LM4780 and following this topic decided towards a bridge parallel design(per channel). that should give me roughly 360w RMS per channel.</p><p>With a decent powersupply i should get very low distortion, although the LM4780 looks the best compared to the other chipamps only starting to distort at +- 85% of full power.</p><p></p><p>Should this power give me enough headroom for a 6mx5m room? The room does have carpets with tiles, standard furniture and 3x -1.5mx2m windows.</p></blockquote><p></p>
[QUOTE="Johan, post: 1946, member: 80"] I 've been looking at a lot of data sheets the last couple of days especially at the signal to noise ratio vs output power together with the SNR vs frequency response, and can tell you that a lot of chipamps are quite bad in this (SNR vs OP) respect. With most chipamps when you get close to +-60% of full power the SNR jumps up quite significantly. I'm busy with a chipamp project using the LM4780 and following this topic decided towards a bridge parallel design(per channel). that should give me roughly 360w RMS per channel. With a decent powersupply i should get very low distortion, although the LM4780 looks the best compared to the other chipamps only starting to distort at +- 85% of full power. Should this power give me enough headroom for a 6mx5m room? The room does have carpets with tiles, standard furniture and 3x -1.5mx2m windows. [/QUOTE]
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Audio and Video Talk
General Discussion
Do we really need amplifiers with 100watts per channel?
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