The DT 1770 PRO MKII are beyerdynamic's closed-back studio headphones for recording, monitoring and mixing, with new 45 mm TESLA.45 drivers at 30 ohms and velour and leatherette ear pads.
Reviewers agree these are very comfortable, solidly built closed-backs that isolate well. They split on sound: PC Gamer found it reference-grade with punchy bass and crisp treble, and easy to drive without an amplifier, while SoundGuys disliked the frequency response and thought the price hard to justify.
TESLA.45 dynamic drivers, made in Heilbronn, closed; 5 – 40,000 Hz; 95 dB SPL (1 mW, 500 Hz), 110 dB SPL (1 V, 500 Hz); THD at 1 mW 0.20% at 100 Hz, 0.04% at 500 Hz, 0.1% at 1 kHz; power handling 100 mW short-term, 30 mW continuous
Noise cancelling detail
No active noise cancelling; passive attenuation 25 dBA
Battery
Listening time (maker's claim)
No battery (wired)
Design
Weight
377 g
Headphone cable
Yes
Fit and ear tips
Circumaural, closed-back; spring steel headband with memory foam pad and fontanelle recess; nominal headband pressure 6 ± 0.5 N; replaceable headband pad and ear pads (velour with slight bass boost, leatherette for linear sound)
Works with
3 m straight and 5 m coiled PRO X cables, detachable, with a lockable 3-pin mini-XLR connector on one side; gold-plated 3.5 mm stereo jack with 6.35 mm adapter
Colours
Black
In the box
Headphones, velour ear pads, leatherette ear pads (each with acoustic disc), 3 m straight cable, 5 m coiled cable, hard case
Pros and cons
Pros
+30-ohm TESLA.45 drivers work with phones and laptops as well as studio gear
+Closed back with 25 dBA of passive attenuation for recording and live monitoring
+Two detachable mini-XLR cables, two sets of ear pads and a hard case included
Cons
−Heavy at 377 g
−Distortion rises to 0.2% at 100 Hz (1 mW), against 0.04% at 500 Hz
