Beyerdynamic DT 1770 PRO (250 Ω) – closed-back circumaural studio headphones with 45 mm Tesla dynamic drivers, 5–40,000 Hz response, 102 dB SPL (1 mW/500 Hz), max 125 dB SPL, <0.05% THD (1 mW/500 Hz), ambient isolation ≈18–21 dBA (pad-dependent), 388 g (without cable); detachable single-sided mini-XLR cables (3.0 m straight & 5.0 m coiled), 3.5 mm plug with 6.35 mm adapter; two earpad sets (velour & leatherette), hard case; made in Germany.
DT 1770 PRO is a premium closed monitor for recording, mixing and editing. The high-efficiency Tesla driver system combines wide-band extension with very low distortion, while the closed architecture provides reliable isolation on loud stages and in the control room. Two included earpad sets let you tailor the voicing and isolation: velour for a more open, airy presentation; leatherette for stronger seal and bass focus.
A lockable, single-sided mini-XLR interface supports quick cable swaps between the 3 m straight and 5 m coiled leads. The spring-steel headband and replaceable pads are built for long-term serviceability, and the rigid hard case protects the headphones in transit.
KEY FEATURES
- Closed, circumaural design with pad-dependent isolation (≈18–21 dBA)
- 45 mm Tesla dynamic drivers for high resolution and headroom
- Two pad tunings included: velour (open, mixing) and leatherette (isolating, tracking)
- Detachable, single-sided cables (3 m straight, 5 m coiled) with lockable mini-XLR
- Gold-plated 3.5 mm plug with 6.35 mm adapter; hard case included
- Replaceable pads/headband; rugged spring-steel headband
- Made in Germany
TECHNICAL SPECIFICATIONS
- Type / principle: Dynamic, closed-back
- Ear coupling: Circumaural (over-ear)
- Impedance: 250 Ω
- Frequency response: 5 – 40,000 Hz
- Nominal SPL: 102 dB SPL (1 mW / 500 Hz)
- Max. SPL: 125 dB SPL (200 mW / 500 Hz)
- Total harmonic distortion (THD): < 0.05% (1 mW / 500 Hz)
- Nominal power handling: 200 mW
- Ambient noise attenuation: Velour ≈ 18 dBA; Leatherette ≈ 21 dBA
- Headband pressure: ≈ 7.2 N
- Weight (without cable): 388 g
- Cables / connector: 3.0 m straight & 5.0 m coiled; detachable, single-sided; mini-XLR at earcup → 3.5 mm TRS (gold-plated) with 6.35 mm adapter
- In the box: DT 1770 PRO, velour pads, leatherette pads, 3 m straight cable, 5 m coiled cable, 6.35 mm adapter, hard case
