HiBy RS6 vs iBasso DX260 MK2

Short answer

  • More power: the iBasso DX260 MK2, with 262 mW into 32 Ω; the HiBy RS6 has 180 mW (balanced: 1.01 W against 690 mW). The iBasso DX260 MK2 drives 2 headphones to 100 dB that the HiBy RS6 cannot (Moondrop PARA, Symphonium Crimson).
  • Hiss with sensitive IEMs: cannot be compared — the maker of the HiBy RS6 publishes no noise figure.
  • Price: the iBasso DX260 MK2 costs $50 less, and wherever both makers publish a figure the HiBy RS6 shows no advantage for the extra money.

Both are portable players, $999 against $949.

The iBasso DX260 MK2 reaches 100 dB on 566 of the 567 models here, the HiBy RS6 on 564.

Every published figure, next to each other

SpecificationHiBy RS6iBasso DX260 MK2
Power into 32Ω180 mW262 mW
Power into 150Ω38 mW56 mW
Power into 300Ω19 mW28 mW
Power into 600Ω9.6 mW14 mW
Output impedance0.4 Ω0.6 Ω
Output noisenot published1.0 µV
Price$999$949
Headphones it reaches 100 dB on
out of 567
564566

Not published means the maker leaves it out, so that axis cannot be compared.

The 4.4 mm or XLR socket, rated on its own

BalancedHiBy RS6iBasso DX260 MK2
Socket4.4mm4.4mm
Power into 32Ω690 mW1.0 W
Power into 300Ω74 mW derived108 mW derived
Output impedance0.8 Ω1.1 Ω
Output noisenot published1.0 µV
Headphones it reaches 100 dB on
out of 567
566566

Through the balanced sockets the two are level on the same test: each reaches 100 dB on 566 of the 567 models here. Derived figures are worked out from the loads the maker did publish.

Where each power figure comes from

LoadHiBy RS6iBasso DX260 MK2
32 ΩPublishedDerived
150 ΩDerivedDerived
300 ΩDerivedDerived
600 ΩDerivedDerived

Only one of these two columns starts from a power rating. HiBy RS6 publishes one at 32 Ω; iBasso DX260 MK2 publishes none at any of these four loads, so its column is worked out from power it published at other loads. Both are arithmetic on a maker’s own figures rather than guesses, and the method used for the iBasso DX260 MK2 understates rather than flatters — but at 32 Ω is the only load here at which its maker can be held to a figure.

What the labels mean.

The headphones that tell them apart

2 headphones reach 100 dB on the iBasso DX260 MK2 but not on the HiBy RS6 — Moondrop PARA, Symphonium Crimson.

564 of the 567 models here reach 100 dB on both.

Headroom and hiss on 8 models, both sources

Headroom is at a 100 dB SPL peak.

The widest gap on the list is the Campfire Audio Andromeda 2020: iBasso DX260 MK2 has +19 dB of headroom there against +11 dB. 8 dB is about 5.8 times the power, which matters for peaks rather than for how loud the music sits.

The hiss columns are empty for HiBy RS6 because that maker publishes no output noise figure.

HeadphoneImpedanceNeedsHiBy RS6 headroomiBasso DX260 MK2 headroomHiBy RS6 hissiBasso DX260 MK2 hiss
Shure SE8469 Ω0.04 mW+31 dB+39 dBnot published14 dB
Campfire Audio Andromeda 20209 Ω4.0 mW+11 dB+19 dBnot published-6 dB
Audeze LCD-2 Classic70 Ω0.79 mW+20 dB+22 dBnot published-7 dB
Beyerdynamic DT 1990 Pro (250Ω)250 Ω0.63 mW+16 dB+17 dBnot published-12 dB
HiFiMAN HE400se25 Ω7.9 mW+12 dB+16 dBnot published-13 dB
Audio-Technica ATH-R70X470 Ω1.6 mW+9 dB+11 dBnot published-19 dB
Sennheiser HD 600300 Ω6.6 mW+5 dB+6 dBnot published-23 dB
HiFiMAN Susvara60 Ω50 mW+3 dB+4 dBnot published-25 dB

The gap in dollars, against the gap in numbers

The HiBy RS6 costs $50 more than the iBasso DX260 MK2, and on these three axes the money buys nothing: among the 567 models here there is not one that the HiBy RS6 handles and the iBasso DX260 MK2 does not — not on power, not on the one-eighth rule, not on hiss. The traffic runs the other way: the cheaper iBasso DX260 MK2 drives 2 models to 100 dB that the HiBy RS6 does not.

Only published figures count here; blank axes are counted separately.

Both pages in full

Each in full: HiBy RS6 and iBasso DX260 MK2.

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