Diminishing Returns In A Hi-End Preamp/Processor?


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I will always have a separate 2-channel preamp in my system, period. That being said, the two-channel performance in a processor for me means absolutely nothing. I have a stand-alone home theater system.

Therefore, all other components in the system being equal, can the home theater sound of a $1500 processor approach the performance of a $7500 processor like the Anthem D2v?

In a $7500 pre/pro, how much of that is 2-channel excellence? I don't want to pay for what I don't use.

If I've got a killer 2-channel preamp, superior 2-channel performance in a pre-pro is redundant and wasteful.

So, my question is, as you go up the pre-pro price chain starting at $1500, does the processing get proportionately better, or is performance of the 2-channel getting markedly better?

mitch
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128x128mitch4t
Mitch asks:

So, my question is, as you go up the pre-pro price chain starting at $1500, does the processing get proportionately better, or is performance of the 2-channel getting markedly better?

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I did a fair bit of research on this question about 2 years ago. I was looking for a pre-pro to replace my ARC LS-25 in a 2.2 channel, music only system because I had added subwoofers and the involved x-over hardware I was using (don't ask) involved multiple boxes and had become a PITA. I don't use the video functions at all, so the following conclusion is limited to audio performance.

Based on reasonably extensive (tho by no means exhaustive) auditioning of pre-pros at many price points, I reached the following conclusion:

If you're using the pre-pro in X.1 or X.2 channel configurations with a digital source and using the internal software to effect the x-over (and likely room correction) in the digital domain, I found little to no audible improvement as the price of the pre-pro goes up from the $1500-$2000 range (where top-line software is employed).

If you switch to the "analog direct" option, it's a much harder call, particularly if you're using analog sources. At some auditions, I felt like the difference in A/B was pretty material, at others, much less so. I knew that I was not likely to go the all analog route very often (deeply spoiled by the convenience of my Q-Sonix server), so I went with a $1500ish Onkyo 5508.

Reiterating: This is just my personal take...and one based on an extensive, tho by necessity limited sample of A/B comparisons of the lower vs higher priced pre-pros.

Marty
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More to the point, is there any point to spending more than $1500-$2000 on a pre/pro if all you want to use it for is home theater?
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