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

• 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

HSC 171

Professional headset with cardioid, shock mounted, speech optimized condenser
microphone. Main application: Live-commentaries and broadcast. The microphone?s
frequency range is 20-20,000 Hz with a sensitivity of 25 mV/Pa. The required feeding
voltage is 9 to 52 V phantom-power. Impedance is 200 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. 10 ft (3m) coiled cable, with 6-pin
female mini XLR connector, ?? jack plug (headphones) and 3-pin XLR connector with
integrated HSC-PA phantom power adapter (microphone).
Net/shipping weight: 250/720g (8.8/25.2 oz.)

Technical Data

• 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.