| Content | DT 990 PRO
Professional headphone for studio applications, open
Features
Open, diffuse-field systems
Professional version of the oftentimes awarded DT 990
Excellent sound reproduction
Robust spring steel headband
Single-sided cable
Soft replaceable ear cushions
Gold plated stereo mini jack and 1/4" adapter
Technical Specifications
Transducer type Dynamic
Operating principle Open
Weight without cable 250 g
Frequency response 5 - 35,000 Hz.
Nominal impedance acc. to IEC 60268-7 250 Ω /System
Nominal SPL acc. to IEC 60268-7 > 96 dB
Nominal THD acc. to IEC 60268-7
Power handling capacity acc. to IEC 60268-7 100 mW
Sound coupling to the ear Circumaural
Average pressure on ear acc. to IEC 60268-7 3.5 N |
- Professional hi-fi stereo studio headphones
- Self-adjusting headband for optimum fit
- Patented Varimotion speakers
- High ambient noise attenuation
- For broadcast and DJ use
- Rugged construction for tough handling
- Leatherette ear pads and additional velvet ear pads
- Single-sided, detachable 3 m cable and additional 5 m coiled cable
The newly designed K 171 MK II combines the benefits of a closed-back design with the lightweight and comfort of supra-aural headphones.
The K 171 MK II is an excellent choice for DJ and broadcast applications where no sound can bleed from the headphones into live microphones.
The closed-back, loud and rugged design gives the K 171 MK II a different low-frequency character and maintains its comfort and flexibility.
| Type | closed-back, dynamic headphones | | Sensitivity | 94 dB/mW, 107 dB/V | | Frequency range | 18 to 26,000 Hz | | Rated impedance | 55 ohms | | Max. input power | 200 mW | | Earpads | leatherette and velvet | | Cable | 3 m single-sided and 5 m coiled cable (99,9% oxygen-free); plug-in cable on headphones (mini-XLR connector) | | Connector | gold plated stereo mini jack | | Adapter | gold plated 1/8" to 1/4" screw-on adapter | | Net weight (without cable) | 200 g (7.1 oz.) | | Shipping weight | 500 g (17.6 oz.) | | Patent(s) | Varimotion – multiple-thickness diaphragm for dynamic transducer (Patent no. AT 403.751, US 6,185,809, EP 814.637 (DE, DK, FI, FR, GB, IT, NL), JP 3.927.651); Acoustics slot resistor for dynamic transducer (Patent no. AT 408.706, US 6,639,991, ZL 01116806) |
| DT770 Closed reference headphone for control and monitoring applications (optionally with limiter).
The DT 770 PRO is a closed dynamic headphone and has been designed for critical music and sound monitoring. The single sided cable makes the handling of the headphone easy. The cushion system allows the DT 770 PRO to be used comfortably for long periods of time.
▲ Closed, diffuse-field studio headphone
▲ "Bass reflex" technology for improved bass response
▲ Comfortable fit due to rugged, adjustable, soft padded headband construction
▲ Robust, easy serviceable construction as all parts are replaceable
▲ Single-sided cable
▲ NEW - Limiter (Optional)
▲ Velour, circumaural ear pads
| Transmission type |
|
Wired |
| Headphone design (operating principle) |
|
Closed |
| Headphone impedance |
|
250 ohms |
| Headphone frequency response |
|
5 - 35.000 Hz |
| Nominal sound pressure level |
|
96 dB |
| Construction |
|
Circumaural (around the ear) |
| Cable & plug |
|
Coiled connecting cable with mini-jack plug (3.5 mm) & ¼" adapter (6.35 mm) |
| Net weight without packaging |
|
270 g |
|
- Professional circumaural hi-fi stereo studio headphones
- Self-adjusting headband for optimum fit
- Patented Varimotion speakers
- High noise attenuation
- For onstage and studio use
- Automute feature mutes headphones when they are taken off
- Leatherette and additional velvet ear pads
- Single-sided, detachable 3 m cable and additional 5 m coiled cable
The newly designed AKG legend, K 271 MK II combines the benefits of AKGʼs circumaural design for extreme comfort and a closed-back design for maximum isolation from ambient noise. Thanks to its XXL transducers, the K 271 MK II sounds clean, smooth and very rich.
The K 271 MK II is the perfect choice for any application where sonic bleed could cause problems such as broadcast work.
Another important feature of the K 271 MK II is the addition of a switch in the headband that mutes the audio just as soon as the headphones are taken off.
| Type |
closed-back, dynamic headphones |
| Sensitivity |
91 dB/mW, 104 dB/V |
| Frequency range |
16 to 28,000 Hz |
| Rated impedance |
55 ohms |
| Max. input power |
200 mW |
| Earpads |
leatherette und velvet |
| Cable |
3 m single-sided and 5 m coiled cable (99,9% oxygen-free); plug-in cable on headphones (mini-XLR connector) |
| Connector |
gold plated stereo mini jack |
| Adapter |
gold plated 1/8" to 1/4" screw-on adapter |
| Net weight (without cable) |
240 g (8.5 oz.) |
| Shipping weight |
550 g (19.4 oz.) |
| Patent(s) |
Varimotion – multiple-thickness diaphragm for dynamic transducer (Patent no. AT 403.751, US 6,185,809, EP 814.637 (DE, DK, FI, FR, GB, IT, NL), JP 3.927.651); Acoustics slot resistor for dynamic transducer (Patent no. AT 408.706, US 6,639,991, ZL 01116806) |
|
Operating Principle: Closed
Transmission Type: Wired
Earpad material: Protein leatherette cover, memory foam filling
Nominal Impedance Headphones: 32 ohms
weight headphones without cable: 360 g
Headphone frequency response: 5 - 50,000 Hz
Nominal sound pressure level: 100 dB (1mW)
Sound coupling to the ear: Circumaural (around the ear)
Cable & Plug: 1.40 straight cable (double-sided), OCC 7N copper, textile braided, 3.5 mm jack plug with 6.35 mm jack adapter
|
Transmission Type: Wired
Headphone frequency response: 10 - 30.000 Hz
Nominal sound pressure level: 100 dB SPL
Sound coupling to the ear: Circumaural (around the ear)
Cable & Plug: Detachable cable – various connectors available
Polar Pattern For Microphone: Hypercardioid
Transducer type for microphone: Dynamic - Hypercardioid
|
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