But on some bass heavy tracks, especially where reverb is applied to the bass transients, mixed may be worth using, especially with some amps. The HD800 is able to fully communicate the benefit to soundstage that linear provides. With HD800, having an amp that has very high loaded current and doesn't use voltage feedback seems to lessen some of the negatives of linear. With SRH840, I'd say just set it to mixed and don't worry about it. Between mixed and linear, things become much more interesting, and hard to judge, especially with HD800. The extra processor power draw, worsened tonality and decreased imaging accuracy were big drawbacks to me. There seems to be very few usage scenarios in an audiophile scenario (where latency in and of itself is irrelevant, since there is no "live" reference event) where I would need to use minimum phase. Oddly, the bass with minimum phase on the SRH840 actually felt very loose, which I still don't really understand, but that's what I heard. This held with all amps, but was most easily noticeable with the TIII, m9XX and Lyr2. With SRH840, mixed was the easy victor overall, as it had equal imaging, equal soundstage, equal tonality, better bass definition than linear. At times it felt that the bass transients were "softened" in a pleasing way with linear applied, at times the bass transients felt less crisp, most of the time I was certain I heard no difference.Ĥ) With SRH840, I won't go into as much detail, but I will say that the trends from the HD800 mostly held as well, except there was a much smaller difference between linear and mixed phases, except in bass transients, where mixed was much better. With TorpedoIII, I went back and forth on whether I could tell a difference, and which I preferred. The effect was slightly more noticeable when the drum had "shallow" reverb, as things got somewhat smeared together. It wasn't really noticeable under normal listening conditions. I specifically put on Chesky test tracks with bass transients. The effect was only noticeable under very close listening with the m9XX, AudioEngine D1 and Lyr2. The effect was noticeable of the EF2C, though not terribly detracting, I likely wouldn't notice it without specifically listening for it. This effect was awful on the DIY millett and the dragonfly. Bass transients were very noticeably smeared on some amps. This margin was large over minimum phase, but still even noticeable over mixed. Tonality was good, but seemingly just a tiny touch off compared to linear phase.ģ) With HD800, I found linear phase to have the best imaging accuracy and soundstage on all amps. Bass transients were just as crisp as with minimum phase, that is to say they were seemingly not impacted by SonarWorks on any of my amps. m9XX and TorpedoIII were particularly superlative in imaging with HD800 and mixed phase. Some amps still struggled a bit with imaging accuracy, but that seems to be more a characteristic of those amps, as imaging accuracy was the same or better (!) with sonarworks mixed phase setting on all amps, compared to hitting the bypass switch. Imaging depth was smeared with HD800 and min phaseĢ) With HD800, mixed phase restored imaging accuracy to normal hyper accuracy that is characteristic to the headphone.
Tonality with all amps seemed slightly "off" with HD800 and min phase. Bass transients on HD800 were crisp with all amps on minimum phase. The amps used were: ECP TorpedoIII, HiFiMan EF2C, Schiit Fulla, Grace m9XX, AudioQuest Dragonfly, AudioEngine D1, Schiit Lyr2, DIY Millett SSMH.ġ) with the HD800, I find minimum phase to MURDER the imaging of upper midrange instruments, this was the case with all amps. That isn't to say I could hear no difference between the DACs, but simply that the DACs didn't seem to be sensitive to these phase settings changes. The DAC used seemed to matter very little, but for some settings the amp seemed to interact with the different phase settings differently. After doing lots of back and forth on the phase settings with the SRH840 and HD800 (the two headphones I currently have with profiles), I tried this with several DACs and amps.
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