In normal market, passive preamp is ±1dB. But this pairs are ±0.1dB.
use aiwa hp v99 vol 115
use balanced TY Hi-Z 650 ohm vol 100 ( DIY mods the 2.5mm plug , the first 2.5mm photo in ASIA with TY 650 ohm )
use TY 150 ohm Hatsune GREEN vol 110
use K701 Kimber kable mods ver vol 120 nax
use 3Hz mdr-x10 Kimber kable
use mdr-z7 Kimber kable
use litte bear b4 op-amp hdam99999sq
use zishan z2 muse02 + Walnut F1 balanced out + permalloy + litte bear b4
use aiwa hp v99 vol 115
use balanced TY Hi-Z 650 ohm vol 100 ( DIY mods the 2.5mm plug , the first 2.5mm photo in ASIA with TY 650 ohm )
use TY 150 ohm Hatsune GREEN vol 110
use K701 Kimber kable mods ver vol 120 nax
use 3Hz mdr-x10 Kimber kable
use mdr-z7 Kimber kable
use litte bear b4 op-amp hdam99999sq
use zishan z2 muse02 + Walnut F1 balanced out + permalloy + litte bear b4
