@Resolve &
@TheHighContemplator, everyone else in this thread & especially owners of this headphone - I've created two new EQ's for this DCA Aeon X Closed headphone now that
@Resolve has provided a measurement of a second sample. Find attached at the end of the post the EqualiserAPO config files for both EQ's.
Following see a comparison of the measurements of Sample#1 and Sample#2 compared along with the average curve created from the two (blue line):
View attachment 157855
Following are the two new EQ's I've created.
DCA Aeon X Closed - Sample #2 EQ:
This one is using just the Sample#2 measurement. Since the channel matching was good on this unit in contrast to the first sample that Resolve measured, then it's probably a little more likely this particular measurement is more representative of any given unit out there in the wild. I've kept Q values for the filters low and not been too crazy about matching the Harman Target with super close accuracy because this is an EQ based off just one measured unit, therefore for other units out there that will have this EQ applied it would make no sense & be counterproductive to use narrow sharp filters - the EQ needs to be more broad ranging, hence wider & lower Q filters.
Adjust the Gain(dB) of the two Shelf Filters to personal taste, one is for bass and the other for air/treble - at 105Hz & 11000Hz respectively.
View attachment 157854
DCA Aeon X Closed - Average of the two Samples EQ:
This is an EQ of the Average Curve (blue line in first pic of this post) of Sample#1 & Sample#2. So this EQ is assuming that both samples that Resolve has measured are representative of the spread of units that could be seen out there in the wild. I feel that Sample #2 is gonna be a more accurate reflection of headphones out there, due to it's good channel matching....sample#1 seemed a little faulty in my view.....having said that I'm providing this average EQ in case sample#1 was representative of what could be received by the customer.
Adjust the Gain(dB) of the two Shelf Filters to personal taste, one is for bass and the other for air/treble - at 105Hz & 11000Hz respectively.
View attachment 157857
Owners of this headphone should feel free to try both EQ's and it would be interesting to see what you owners think to both EQ's in terms of which one you think sounds best or most faithful to the Harman Curve (try to match the volumes/loudness first) - this might provide some elucidation into if sample#1 was somewhat faulty or not. If the EQ for Sample#2 is preferred (not the AverageEQ), then this starts to provide indications that Sample#2 is more representative of headphones out there than Sample#1. Looking forward to hearing your impressions!
EDIT: if you add boost to the Shelf Filters during your customisations then make sure you cover the extra boost by increasing the Negative Preamp (making it more negative), otherwise you will get digital clipping.
