The device has a unique audio amplifier that powers the 3.5mm audio jack and speaker to provide improved sound for music, video and even gaming.

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In addition to continuing to provide the audio codec chip for the iPhone, he thinks the company also scored wins with a low power codes DSP chips for noise suppression, noise cancellation and echo cancellation, as well as an audio amplifier.

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The Windows Phone 8X by HTC featuring Beats Audio also offers a unique audio amplifier powering the 3.5mm audio jack and the speaker, boosting the audio signal for even better sound no matter if you're listening to music, playing a game or watching a video.

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In order to fully exploit the sound potential of the HDVD 800 with any audio source, a rotary gain switch at the rear of the unit provides simple adaptation of the amplifier output to the audio input voltage.

ENGADGET: Sennheiser unveils HDVA 600 analog headphone amp, asks for $1,600

After recently having presented its first digital headphone amplifier, the audio specialist Sennheiser announces at IFA 2012 that it will also launch an analogue version of the device, available in the U.S. later this fall.

ENGADGET: Sennheiser unveils HDVA 600 analog headphone amp, asks for $1,600

Also visible through the glass panel are the cooling element, the audio relay and countless MELF resistors for the amplifier.

ENGADGET: Sennheiser unveils HDVA 600 analog headphone amp, asks for $1,600

On the audio-only front, the 077 Reference preamplifier and 082 Classic integrated amplifier make their appearance on the cutsheet, but it's the 087 Classic surround processor that grabs our HD attention.

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Studio-grade components, which include external digital-to-analog converters (DACs) that deliver 127dB signal-to-noise ratio (SNR), sockets for swappable Op-Amps, a high-end 80mW into 600 ohm headphone amplifier, and 192kHz pass through, are used to deliver phenomenal audio quality.

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These electrostatic headphones with a vacuum tube amplifier, which came onto the market around 20 years ago, have become an icon in the audio world.

ENGADGET: Sennheiser unveils HDVA 600 analog headphone amp, asks for $1,600