HDC451-1

Active Noise Cancellation Headphone

HDC451-1:

Active Noise Cancellation Portable Headphone

Lightweight (3.9 oz)

Active noise cancellation -10dB

In-line battery pack

Built for the purpose of reducing potentially damaging low frequen- cies, the HDC 451 incorporates tiny microphones that monitor the acoustic environment detecting fre- quencies between 400 and 1000 Hz. A built-in processor generates reverse-phase signals in the same frequency range that collide with, and cancel, the incoming sound. The Open-aire®stereo head- phones with active noise compen- sation are lightweight at only 3.9 oz. and offer exceptional high wear- ing comfort supraaural coupling to the ear.

While wearing the Open-aire NoiseGardTM mobile, you are al- ways addressable since the vocal frequency range is hardly affected

by the noise compensation. Also warning or emergency signals re- main audible. The HDC 451 NoiseGard mobile, incorporates an in-line battery box that can easily be clipped to your clothing, proving ideal for portable applica- tions, especially during travel by train, bus, airplane or as a pas- senger in an automobile. Not only is NoiseGard advantageous for the traveler, it is also appropriate in the work place where air condi- tioning noise, computer hums or typical large area office noise is present. Sennheiser's NoiseGard mobile HDC 451 is an ideal solu- tion for today’s increasingly noisy world.

The HDC451-1 comes with a two year parts and labor warranty.

SPECIFICATIONS

Transducer Principle

Open-Air® , Dynamic

Frequency Response

20 Hz - 18,000 Hz

Impedance

270 Ohms

Distortion (THD)

1%

Nominal input voltage (AF)

94 dB

Attenuation

10 dB between 400 - 1000 Hz

Power Supply

2 x 1.5 V "AA" cells (Alkaline)

 

2 x 1.2 V "AA" cells (NiCd

Operating Time

600mA)

Approx. 80 hours with alkaline

 

cells

 

Approx. 20 hours with NiCd

Headphone Caliper

600 mA

 

Pressure

Approx. 1.6 N (5.6 oz.)

Weight Without Cable

Approx. 110 g (3.9 oz.)

Connector

1/8” mini stereo plug for

 

audio signal

SENNHEISERELECTRONICCORPORATION, ONEENTERPRISEDRIVE,P.O.BOX987,OLDLYME,CT 06371 TEL:860-434-9190 FAX:860-434-1759.CALIFORNIA:4116WESTMAGNOLIABLVD.,SUITE100,BURBANK,CA91505-TEL:818-845-7366.FAX:818-845-7140 MEXICO: XOLA 613PH6,COLDELVALLE,C.P.03100,MEXICO,D.F.MEXICO-TEL:(525)6390956 .FAX:(525)639 9482.

WorldWideWeb:http://www.sennheiserusa.com ManufacturingPlant:AmLabor1,30900Wedemark,Germany HDC451-17/97

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Sennheiser HDC 451-1, HDC 45-26 specifications HDC451-1, Specifications

HDC 451-1, HDC 45-26 specifications

The Sennheiser HDC 45-26 and HDC 451-1 are professional-grade headphones designed for audio monitoring and critical listening applications. These models are part of Sennheiser's renowned heritage in audio technology, offering features that cater to both audiophiles and professionals in the music and broadcasting industries.

The HDC 45-26 headphones are equipped with large dynamic drivers that deliver a wide frequency response, ensuring accurate sound reproduction across lows, mids, and highs. One of the standout features of this model is its closed-back design, which not only enhances sound isolation but also minimizes ambient noise interference. This makes the HDC 45-26 ideal for studio environments where focus and clarity are paramount.

Comfort is another key consideration in the design of the HDC 45-26. With plush cushioning on the ear pads and adjustable headbands, they provide a secure yet comfortable fit for extended listening sessions. The lightweight construction ensures that users can wear these headphones for hours without experiencing fatigue.

On the other hand, the HDC 451-1 model offers a step up in terms of technological advancements. It features advanced wireless capabilities, making it a versatile choice for professionals who require freedom of movement during performances or recordings. The HDC 451-1 utilizes low-latency Bluetooth technology, ensuring that audio remains in sync with video, making it perfect for both live and studio use.

Both models incorporate Sennheiser’s NoiseGard technology, which actively reduces unwanted noise from the environment, enhancing the listening experience even further. This is particularly beneficial in busy studio settings or during live events where background noise can be intrusive.

Sennheiser has also made sure that both the HDC 45-26 and HDC 451-1 come with durable, high-quality materials designed for longevity. Their robust construction means they can withstand the demands of regular use while maintaining the performance standards expected from Sennheiser products.

In summary, the Sennheiser HDC 45-26 and HDC 451-1 headphones are exemplary options for those seeking superior audio quality, comfort, and technological innovation. Whether you choose the wired reliability of the HDC 45-26 or the wireless flexibility of the HDC 451-1, you can trust in Sennheiser’s commitment to delivering exceptional sound experiences.