BLUE MO-FI Headphones closed type with Frequency Response: 15Hz-20kHz

 Blue has a history of making groundbreaking, high-quality microphones that deliver uncompromising sound. Now, Blue has applied their expertise to create equally groundbreaking headphones. Taking the concept of purpose-built onboard amplification - as used in monitor speakers - Blue Mo-Fi does the same for headphones.

The Mo-Fi rocks a built-in audiophile amplifier and precision, high-powered drivers for amazing accuracy and a totally immersive, life-like listening experience. In the studio, at FOH, or at home, you'll appreciate how the Mo-Fi's generous headroom and outstanding sound isolation lets you hear your music with crystalline clarity.

Blue Microphones Mo-Fi Powered High-fidelity Headphones at a Glance:

• Onboard amplification, for impressive monitoring accuracy

• You control the bass

• Sound that's way beyond earbuds

• Ergonomic fit gives you cushy comfort during marathon sessions

• Smart power management means Mo-Fi's ready for action

Onboard amplification, for impressive monitoring accuracy

Remember when studio monitor speakers were passive? No great loss. Active speakers have done wonders for monitoring accuracy. And so it is with Blue Microphones Mo-Fi headphones. With an audiophile-quality onboard amplifier and perfectly-matched precision drivers, Mo-Fi has revolutionized monitor headphone design, delivering output that's stunningly true to the input, for studio-grade sound - even on your mobile devices. If you want to pump up the bottom, though, Mo-Fi gives you an enhanced bass mode (along with active and passive settings), so you can optimize any listening situation. Headphone design will never be the same.

You control the bass

Unlike other headphones that put more bass in your face whether you want it or not, Mo-Fi lets you choose the right sound for your music. No DSP tricks here - this is analog. No matter if you're listening to '70s-era rock, modern pop, orchestral, hip-hop or something else, you'll have total control over your listening experience.

Sound that's way beyond earbuds

If you're listening to music on your iPod, iPhone, or another personal music player, you're missing out on the full dynamic range and frequency response of the music. These underpowered devices simply can't drive a strong enough signal through earbuds. That's where the Mo-Fi's integrated amplifier comes in. It delivers an astonishing listening experience that you have to hear to believe.

Ergonomic fit gives you cushy comfort during marathon sessions

Mo-Fi is no ordinary headphone. From a technical standpoint, Mo-Fi's a game changer, but when you first try them on, you'll be thrilled that Blue Microphones paid just as much attention to their physical design. From their innovative multi-jointed design, to earcups shaped like - well, ears, Blue has thoroughly reimagined headphone form factor and functionality. Blue fitted Mo-Fi with a multi-jointed headband, earcups that ergonomically float into place, and an adjustable tension knob that lets you effortlessly dial in your ideal "Goldilocks" setting - not too loose, not too tight, but "just right." Mo-Fi gives you extreme comfort that other headphones simply can't.

Smart power management means Mo-Fi's always ready for action

Mo-Fi's intelligent design saves on battery life, ensuring that your 'phones are always ready for action. Mo-Fi knows when you've stopped listening and automatically powers down to save juice. The battery charges in 3-4 hours, and gives you around 12 hours of playtime. And even if the battery runs out, Mo-Fi will continue to operate in passive mode.

Features:

• Custom high-powered audiophile amplifier

• 50mm titanium-reinforced ultra-responsive dynamic drivers

• Sealed over-ear design for superior isolation and feedback prevention

• User-adjustable tension and suspension adapt to any head shape and size for a perfect fit

• Racecar-inspired multi-joint headband design keeps earcups parallel at all times for superior comfort and sound

• All-analog amplifier performance modes: active, enhanced bass, passive

• Powers on and off automatically when headphones are opened and closed

• Rechargeable battery provides up to 12 hours of playtime

• Mo-Fi continues to play music even when battery has no charge

Specifications:

• Open/Closed: Closed

• Fit Style: Circumaural (Around the Ear)

• Driver Size: 50mm

• Frequency Response: 15Hz-20kHz

• Cable Length: 1.2 meters

• Cable Type: Straight

• Replaceable Cable: Yes

• Plug Size: 1/8" (includes 1/4" adapter)

• Weight: 466 grams

Technical Data

• Professional hi-fi stereo studio headphones
• Semi-open, circumaural design
• Self-adjusting headband for optimum fit
• Patented Varimotion speakers
• Leatherette ear pads and velvet ear pads
• Single-sided, detachable 3 m cable and additional 5 m coiled cable

• 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).

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.)