Beyerdynamic DT 990 (600 Ω)
Beyer’s open V-shape: big, fun bass and a sparkly, sometimes sharp treble. The 600 Ω version demands an amp.
Our take
The DT 990 is the fun Beyer: elevated bass and a bright, airy treble around a slightly recessed midrange, exciting rather than neutral. The famous upper-treble peak can be hot; a small EQ dip tames it. This 600 Ω version needs a proper amp to breathe.
Measured on a Head Acoustics HMS II.3 artificial head — raw response, left/right averaged, normalized to 0 dB at 1 kHz. From the Sonic Temple Archive(2008–2014, one unit per model). Honest limits: seating variance runs ±0.4 dB in the mids to ±3.9 dB above 12 kHz, and open headphones read bass-light on this fixture — don’t read fine treble detail as settled. How we measure →
Common questions
Straight answers — the same ones our measurements support.
Does the DT 990 600-ohm need an amp?
Yes: 600 Ω is voltage-hungry; a phone or laptop will not drive it properly.
Is the DT 990 bright?
Yes, it has a strong treble peak. Great for detail and air; EQ it down if it is fatiguing.
If you like the DT 990 (600 Ω)
Close on the graph, or a deliberate step in one direction.