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Amplifiers
Pioneer GM-D8604 Amp Dyno
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<blockquote data-quote="ciaonzo" data-source="post: 8636892" data-attributes="member: 607015"><p>Initially I thought the same thing but if you look at the GM-D8601 vs. the GM-D9601, the 9601 is physically longer and has a different board layout with a few more caps and transistors. The same is true for the comparison between the 8604 vs. 9604 with the 9604 being physically longer (the PDF illustrates this) so, although I haven't been able to compare the guts yet, there's a slim possibility that it has a few more components inside to support the marginally higher power ratings or bolster the reliability of the same actual power. Maybe not, maybe the heatsink is just longer for the sake of consistency. Or maybe it's an even bigger sleeper. Seems like the 8601 &amp; 8604 are being phased out in favor of the slightly improved 9601 &amp; 9604, rated for a bit more power and with any luck maybe even sounding better due to lower noise or whatever. Couple links to compare guts. Bonus vid for essqews.</p><p></p><p>[MEDIA=youtube]XneW1uQEnj8[/MEDIA]</p></blockquote><p></p>
[QUOTE="ciaonzo, post: 8636892, member: 607015"] Initially I thought the same thing but if you look at the GM-D8601 vs. the GM-D9601, the 9601 is physically longer and has a different board layout with a few more caps and transistors. The same is true for the comparison between the 8604 vs. 9604 with the 9604 being physically longer (the PDF illustrates this) so, although I haven't been able to compare the guts yet, there's a slim possibility that it has a few more components inside to support the marginally higher power ratings or bolster the reliability of the same actual power. Maybe not, maybe the heatsink is just longer for the sake of consistency. Or maybe it's an even bigger sleeper. Seems like the 8601 & 8604 are being phased out in favor of the slightly improved 9601 & 9604, rated for a bit more power and with any luck maybe even sounding better due to lower noise or whatever. Couple links to compare guts. Bonus vid for essqews. [MEDIA=youtube]XneW1uQEnj8[/MEDIA] [/QUOTE]
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Pioneer GM-D8604 Amp Dyno
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