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Digital Filter used with AK4497 in K-01x, K-01xs, N-01, Grandioso K1
Reviews of the latest Esoteric network and disc players (too early for the K-01xs, though) have been overwhelmingly positive and I find it interesting Esoteric has eschewed the use of selectable digital filters in their implementation of the AK4497 in each player.
Personally, I believe that there is a "correct" filter with respect to accuracy of the resulting sound and feel the upsampling settings can allow the end user some freedom to tailor the sound to their system. I don't disagree with the choice to remove the filter selection since some are less accurate than others, but filter choice seems to be a popular selling point for digital products. The AK4497 has 5 or 6 available digital filters, according to AKM's website: "Six Types, 32-bit 8-fold Digital Filters - Short Delay Sharp Roll-off, GD=6.25/fs - Short Delay Slow Roll-off, GD=5.3/fs - Sharp Roll-off - Slow Roll-off - Super Slow Roll-off - Low-dispersion Short Delay" Does anyone know what filter choice Esoteric has implemented in these new products?
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Christian south: Mark Levinson No. 52 pre, Bricasti M28 amps, Lumin A1, Oppo BDP-205, Pioneer CT-43, Sony SS-AR1 Speakers, Audioquest Dragon PCs, Audioquest speaker cables, Audioquest interconnects, HB Power Design Powerslave Star Galaxy power distributor north: Vitus SIA-030, Luxman D10X, Sony TC-KA3ES, Harbeth 40.2, Siltech cables |
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