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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="skinnyfat" data-source="post: 1170"><p>Howdy Abe</p><p></p><p>During my holidays I took time out to do some 'demoing' and listened to a pair of PSB speakers. The salesman (also the owner of the store) hooked them up to a NAD integrated amp (dont recall model no.) but was rated at 40 W rms across the entire audio spectrum with both channels driven. A 'modest' amp was the word he used to describe it. Well the sound was sublime (made me want to ditch multi channel and go back to bog standard stereo). He then proceeded to hook up a Rotel 100W per channel integrated amp (also across 20Hz - 20 KHz) both channels driven. I WANT ONE OF THOSE !!!!!!!!!!</p><p></p><p>A quick note: The demo room was not acoustically treated beacause as the owner says, "few peoples homes are correctly acoustically treated so I dont want to create any false impressions by demoing in an acoustically 'correct' room.</p><p></p><p>Anyway IMO, an amp that has higher current delivery is more important. The impedance of a speaker rated 8Ohm nominal will not always be that. Under certain conditions the impedance could drop to as low as 2 ohms or less. STD 8 physics tells us that if the resitance drops, the current needs to be increased. If the amp cannot provide that current =====> DISTORTION.</p><p></p><p>Needless to say I am now going for a good stereo kit <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big grin :D" loading="lazy" data-shortname=":D" /></p></blockquote><p></p>
[QUOTE="skinnyfat, post: 1170"] Howdy Abe During my holidays I took time out to do some 'demoing' and listened to a pair of PSB speakers. The salesman (also the owner of the store) hooked them up to a NAD integrated amp (dont recall model no.) but was rated at 40 W rms across the entire audio spectrum with both channels driven. A 'modest' amp was the word he used to describe it. Well the sound was sublime (made me want to ditch multi channel and go back to bog standard stereo). He then proceeded to hook up a Rotel 100W per channel integrated amp (also across 20Hz - 20 KHz) both channels driven. I WANT ONE OF THOSE !!!!!!!!!! A quick note: The demo room was not acoustically treated beacause as the owner says, "few peoples homes are correctly acoustically treated so I dont want to create any false impressions by demoing in an acoustically 'correct' room. Anyway IMO, an amp that has higher current delivery is more important. The impedance of a speaker rated 8Ohm nominal will not always be that. Under certain conditions the impedance could drop to as low as 2 ohms or less. STD 8 physics tells us that if the resitance drops, the current needs to be increased. If the amp cannot provide that current =====> DISTORTION. Needless to say I am now going for a good stereo kit :D [/QUOTE]
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Audio and Video Talk
General Discussion
Do we really need amplifiers with 100watts per channel?
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