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Audio and Video Talk
General Discussion
Speaker's impedance
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<blockquote data-quote="Moog" data-source="post: 64408" data-attributes="member: 418"><p>:<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" />I have used amps with impedance switches before. In my opinion (not being an audio designer/engineer) i think the switch is there for a good reason. The last amp that i used with this feature was a Sansui AUG77X and that was way back in 1986. According to the manual spec sheet, it was rated at 110 watts per channel into 8 ohms and 320 dynamic watts into 2 ohms. What i noticed was that at high level listening and fed into a pair of Marantz HD900 speakers with a nominal impedance rating of 8 ohms, the amp would dissipate more heat with at the 8 ohms setting than at the 4 ohms setting.Therefore with this speaker, i could play this amp at party volumes at the 4 ohm setting for the whole day if chose to. However,at lower listennig levels, i do not think it matters whether you switch to 8 ohms or 4 ohms.</p></blockquote><p></p>
[QUOTE="Moog, post: 64408, member: 418"] ::)I have used amps with impedance switches before. In my opinion (not being an audio designer/engineer) i think the switch is there for a good reason. The last amp that i used with this feature was a Sansui AUG77X and that was way back in 1986. According to the manual spec sheet, it was rated at 110 watts per channel into 8 ohms and 320 dynamic watts into 2 ohms. What i noticed was that at high level listening and fed into a pair of Marantz HD900 speakers with a nominal impedance rating of 8 ohms, the amp would dissipate more heat with at the 8 ohms setting than at the 4 ohms setting.Therefore with this speaker, i could play this amp at party volumes at the 4 ohm setting for the whole day if chose to. However,at lower listennig levels, i do not think it matters whether you switch to 8 ohms or 4 ohms. [/QUOTE]
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Audio and Video Talk
General Discussion
Speaker's impedance
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