GERMAN MAESTRO GMP 250 Closed type Studio Headphones

GMP 250     
Headphone HANDCRAFTED IN GERMANY
This closed headphone with superb acoustical features is ideally suited for all those who attach importance to dynamic response. The extremely clear bass and the fine reproduction of the mid- and high frequency ranges enables the GMP 250 to set benchmarks in its class. The cardamatic suspension with its highly flexible head-bow and adjustable headband ensure excellent long-term comfort and fit.

Technical Data
Frequency Response: 13 - 20.400 Hz
Nominal Impedance: 100 O
Acoustical Principle: Closed
Ear Pads: Synthetic leather, circumaural
Average pressure on the ear: ~3 N
Weight w/o cable: 220 g
Connector: Stereo-Multi-Jack 3,5 / 6,3 mm
Spiral cable 1,5 / 3 m 

Technical Data

• Advanced build quality and engineering
• 40 mm drivers with rare earth magnets and copper-clad aluminum wire voice coils
• Tuned for enhanced detail, with excellent mid-range definition
• Circumaural design contours around the ears for excellent sound isolation in loud environments

• Type: Closed-back dynamic
• Driver Diameter: 40 mm
• Magnet: Neodymium
• Voice Coil: CCAW (Copper-clad aluminum wire)
• Frequency Response: 15 - 22,000 Hz
• Max Input Power: 1,300 mW @ 1KHz
• Sensitivity: 96 dB
• Impedance: 47 ohms
• Folding/collapsible: Yes
• Weight: (Without cable) 7.8 oz (220 g)
• Cable - Detachable: No
• Cable: 3 m (9.84') Straight cable, left-side exit
• Connector: Gold-plated stereo 1/8" (3.5 mm) connector with strain relief
• Accessories included: Screw-on 1/4" adapter, pouch

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.)

•     Semi - Open
•     Innovative bass refelx system
•     Rugged headband cosntruction
•     Single-sided coiled cable
•     Soft headband pad
•     Gold plated stereo mini jack (3.5mm) and 1/4" adapter
•     Transducer type: Dynamic
•     Frequency response: 5 - 35,000 Hz
•     Nominal impedance: 250 ohm
•     Nominal SPL : 96 dB
•     T.H.D: < 0.2%
•     Power handling capacity: 100 mW
•     Sound coupling to ear: Circumaural
•     Weight (without cable) 295 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.

By the way, the K 271 MK II is also available as a headset with dynamic microphone (HSD 271) or condenser microphone (HSC 271).