| 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.
| 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) |
| 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 |
|
Wired |
| Headphone design (operating principle) |
|
Closed |
| Headphone impedance |
|
80 ohms |
| Headphone frequency response
The frequency response specifies the highest and lowest frequencies reproduced by the acoustic transducer of the headphones. |
|
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. |
|
105 dB |
| Construction |
|
Circumaural (around the ear) |
| Cable & plug |
|
Straight connecting cable with mini-jack plug (3.5 mm) & ¼" adapter (6.35 mm) |
| Net weight without packaging |
|
300 g |
| Beyerdynamic DT 150
The DT 150 is a dynamic studio headphone for use in broadcasting, film and recording studios
and other audio monitoring applications where size, comfort and performance are primarily requirements.
Due to its closed design it features excellent ambient noise isolation for reference monitoring.
- Transducer type: Dynamic
- Operating principle: Closed
- Frequency response: 5 - 30,000 Hz
- Nominal impedance: 250 Ω
- Nominal SPL: 97 dB
- Power handling capacity: 100 mW
- Sound coupling to the ear: Circumaural
- Headband pressure: 4.5 N
- Ambient noise attenuation: approx. 20 dBA
- Weight (without cable): 250 g
|
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.) | 80 Ohm specs
- Type Over-ear (Closed)
- Channels Stereo
- Noise isolation 18 dB reduction
- Connections 3.5mm stereo, 6.25mm stereo
- Weight 9.52 oz
General
- Type Over-ear (Closed)
- Cable type Y-cable
- Channels Stereo
Other features
- Plug type Straight
- Gold-plated connector Yes
Audio quality
Noise reduction
- Noise isolation 18 dB reduction
Connections
- Connections 3.5mm stereo, 6.25mm stereo
|
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