Content | K 240 Studio
The Studio version of these classic hi-fi stereo headphones uses XXL speakers
with Varimotion diaphragms for higher sensitivity, a wider dynamic range, and
higher sound levels. Other features include semi-open earphones, a solid bass
range, clear highs, and excellent comfort.Also connects to portable equipment
(CD players, DAT recorders, notebook computers, etc.)
SPECIFICATIONS:
General Specifications
Headphone type: semi-open
Max. Input Power: 200 mW
Sensitivity headphones: 104 dB SPL/V
Rated Impedance: 55 Ohms
Detachable cable: yes
Cable Length: 3 m
Earpads replaceable: yes
Audio Specifications
Maximum input power: 200 mW
Audio frequency bandwidth: 15 - 25000 Hz
Dimensions
Length: 110 mm
Width: 190 mm
Height: 200 mm
Net Weight: 240 g
Audio Interface
Type: Stereo plug – 3.5mm (1/8-inch) with 6.3 mm (1/4") screw-on adapter
Gender: Male
Contacts: 3-pin
Cable
Detachable: Yes
Wearing Style
Over-ear: Yes
Application
Studio Mixing: Yes
Hi-Fi Listening: Yes
Foldable
Not foldable: Yes
Cup Style
Semi-open: Yes |
- 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.
By the way, the K 271 MK II is also available as a headset with dynamic microphone (HSD 271) or condenser microphone (HSC 271).
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- 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) |
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HSD 171 without cable
Professional headset with hypercardioid, shock mounted, speech optimized, dynamic microphone. Main application: Live sound use. The microphone?s frequency range is 60-17,000 Hz with a sensitivity of 1 mV/Pa (-60 dBV). Impedance is 600 ohms. The headphone?s impedance is 55 ohms with an audio bandwidth of 18-26,000 Hz. Type: supra-aural, closed-back with self-adjusting headband. Microphone arm is swivelling through 270 degrees for left or right-hand use with integrated mute switch. Net/shipping weight: 255/725g (9/25.4 oz.) | 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 | DT770 Closed headphone for drummers and monitoring purposes (FOH), with extreme isolation against ambient noise.
The dynamic, closed DT 770 M has especially been designed for drummers and FOH monitoring. The strengthened headband and the softskin ear pads provide an excellent isolation against ambient noise. The single sided straight cable allows a volume control directly at the headphone.
▲ Closed headphone
▲ Excellent ambient noise attenuation (35 dBA)
▲ Superb sound quality with high sound pressure level (105 dB)
▲ Extended frequency range
▲ Single-sided cable with volume control
▲ Robust, easy serviceable construction as all parts are replaceable
▲ Excellent comfort for long-term wearing, softskin ear pads
▲ Secure and comfortable fit due to rugged, adjustable headband construction with soft padding
▲ Single-sided cable
▲ Supplied in a carrying case (nylon)
Transmission type |
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Wired |
Headphone design (operating principle) |
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Closed |
Headphone impedance |
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80 ohms |
Headphone frequency response
The frequency response specifies the highest and lowest frequencies reproduced by the acoustic transducer of the headphones. |
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5 - 30.000 Hz |
Nominal sound pressure level
The (nominal) sound pressure level is the pressure in pascals (Pa) with which the air and the eardrum are caused to vibrate, better known as the volume. The sound pressure level is therefore a measure of the volume of a set of headphones under standardized conditions. However, it says nothing about whether the distortion is low and the sound is good at such a high volume. |
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105 dB |
Construction |
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Circumaural (around the ear) |
Cable & plug |
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Straight connecting cable with mini-jack plug (3.5 mm) & ¼" adapter (6.35 mm) |
Net weight without packaging |
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300 g |
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