Schiit Mjolnir 3 vs Violectric V222

Short answer

More power: the Violectric V222, with 2.70 W into 32 Ω; the Schiit Mjolnir 3 has 1.00 W (balanced: 2.70 W against 2.00 W). The Violectric V222 drives 1 headphone to 100 dB that the Schiit Mjolnir 3 cannot (Symphonium Titan).
Quieter with sensitive IEMs: the Violectric V222. 287 headphones stay below audible hiss on it but not on the Schiit Mjolnir 3 (64 Audio Aspire 1, 64 Audio Ocean, 64 Audio Solo, 284 more).
Price: the Violectric V222 costs $46 more; what that buys on these numbers is set out further down, under What the price difference buys.

Both are desktop amplifiers, $1199 against $1245.

The Violectric V222 reaches 100 dB on 567 of the 567 models here, the Schiit Mjolnir 3 on 566.

Specification	Schiit Mjolnir 3	Violectric V222
Power into 32Ω	1.0 W	2.7 W
Power into 150Ω	488 mW	2.7 W
Power into 300Ω	500 mW	1.8 W
Power into 600Ω	250 mW	1.1 W
Output impedance	0.13 Ω	0.25 Ω
Output noise	25.18 µV	6.15 µV
Price	$1199	$1245
Headphones it reaches 100 dB on out of 567	566	567

Specification

Schiit Mjolnir 3

Violectric V222

Power into 32Ω

1.0 W

2.7 W

Power into 150Ω

488 mW

2.7 W

Power into 300Ω

500 mW

1.8 W

Power into 600Ω

250 mW

1.1 W

Output impedance

0.13 Ω

0.25 Ω

Output noise

25.18 µV

6.15 µV

Price

$1199

$1245

Headphones it reaches 100 dB on
out of 567

566

567

The 4.4 mm or XLR socket, rated on its own

Balanced	Schiit Mjolnir 3	Violectric V222
Socket	XLR4	balanced
Power into 32Ω	2.0 W	2.7 W
Power into 300Ω	1.0 W	1.8 W
Output impedance	0.25 Ω	0.5 Ω
Output noise	not published	6.15 µV
Headphones it reaches 100 dB on out of 567	567	567

Through the balanced sockets the two are level on the same test: each reaches 100 dB on 567 of the 567 models here.

Where each power figure comes from

Load	Schiit Mjolnir 3	Violectric V222
32 Ω	Published	Published
150 Ω	Derived	Derived
300 Ω	Published	Published
600 Ω	Derived	Published

Both makers publish a power rating. Schiit Mjolnir 3 publishes at 32 Ω and at 300 Ω; Violectric V222 at 32 Ω, at 300 Ω and at 600 Ω. The other rows are worked out from those.

So the two columns are not equally firm row by row: at 600 Ω only the Violectric V222 figure is the maker’s own. On those rows the derived number is the one to doubt first.

What the labels mean.

The headphones that tell them apart

1 headphone reaches 100 dB on the Violectric V222 but not on the Schiit Mjolnir 3 — Symphonium Titan.

287 headphones stay below the audible-hiss threshold on the Violectric V222 but cross it on the Schiit Mjolnir 3 (64 Audio Aspire 1, 64 Audio Ocean, 64 Audio Solo, 284 more).

566 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 Audeze LCD-2 Classic: Violectric V222 has +36 dB of headroom there against +29 dB. 7 dB is about 5.5 times the power, which matters for peaks rather than for how loud the music sits.

Hiss below about 20 dB SPL is inaudible in a quiet room.

Headphone	Impedance	Needs	Schiit Mjolnir 3 headroom	Violectric V222 headroom	Schiit Mjolnir 3 hiss	Violectric V222 hiss
Shure SE846	9 Ω	0.04 mW	+38 dB	+44 dB	42 dB	30 dB
Campfire Audio Andromeda 2020	9 Ω	4.0 mW	+18 dB	+24 dB	22 dB	10 dB
Audeze LCD-2 Classic	70 Ω	0.79 mW	+29 dB	+36 dB	21 dB	8 dB
Beyerdynamic DT 1990 Pro (250Ω)	250 Ω	0.63 mW	+29 dB	+35 dB	16 dB	4 dB
HiFiMAN HE400se	25 Ω	7.9 mW	+20 dB	+24 dB	15 dB	3 dB
Audio-Technica ATH-R70X	470 Ω	1.6 mW	+23 dB	+29 dB	9 dB	-3 dB
Sennheiser HD 600	300 Ω	6.6 mW	+19 dB	+24 dB	5 dB	-7 dB
HiFiMAN Susvara	60 Ω	50 mW	+11 dB	+18 dB	3 dB	-9 dB

The gap in dollars, against the gap in numbers

The Violectric V222 costs $46 more than the Schiit Mjolnir 3. Out of the 567 models here, that difference buys 1 more model driven to 100 dB and 287 more models kept below the audible-hiss threshold.

Nothing runs the other way: there is no axis here on which the cheaper of the two does better.

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