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The BEYERDYNAMIC DT-297-PV/80 is a double-sided headset Microphone with Cable
All DT 297 versions are supplied with connecting cable.
Technical Specifications
Transducer type Condenser (back electret)
Operating principle Closed
Polar pattern Cardioid
Open circuit voltage at 1 kHz (0dB = 1V/Pa) 5 mV/Pa at f = 1 kHz
Nominal impedance approx. 300 Ω
Load impedance > 1000 Ω
Weight without cable 240 g
Frequency response 40 - 20,000 Hz
Current consumption approx. 3.5 mA
Ambient noise isolation approx. 16 dBA
T.H.D.
Max. SPL 132 dB
Phantom supply 12 - 48 V
S/N ratio 62 dB
Weight 30 g
Nominal SPL at 1 kHz 100 dB
Average pressure on ears 4.5 N
Gooseneck length 120 mm
Capsule diameter 19 mm |
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 |
The SRH440 Professional Studio Headphones from Shure provide exceptional sound reproduction and comfort.
Optimized for home and studio recording, SRH440 headphones reproduce accurate audio across an extended range.
Impedance, power handling and sensitivity are all calibrated for professional audio devices such as DJ mixers, mixing consoles, and headphone amplifier. Includes carrying bag and threaded 1/4" (6.3mm) gold plated adapter.
Enhanced frequency response delivers accurate audio across an extended range
Impedance and power handling optimized for perfomance with professional audio devices
Adjustable headband and collapsible construction provide comfort and portability
Bayonet clip securely locks detachable cable into ear cup
Sensitivity
105 dB
Maximum Input Power
500 mW
Frequency Response
10 Hz - 22 kHz
Weight
9.6 oz (272 g)
Cable Length
3 meters (9.84 ft)
Cable Style
Detachable coiled oxygen-free copper
Plug
Gold-plated 1/8" (3.5 mm) stereo mini jack
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- 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) |
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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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