Micro Amp | HeadRoom Headphone Amplifier & Digital-Analog Converter

The Micro Amp

Packing HeadRoom’s mobile electronics module, two nine-volt batteries, and all the knobs and switches you need into an all but bullet proof aluminum enclosure is pushing it a bit, but you won’t care because your head will be thanking you for the lovely tunes.

				5.
1.		3.		Volume
				Control
Line		Crossfeed
					6.
Input	2.	Switch
				4.	Power

Headphone				Gain	Source
	Out		Switch		Switch

External Power Input

	8.
2	Thumb Screws

The Micro Amp Panel Descriptions

Front Panel

1.Line Input The line input is where you plug in the source. Preferably the Micro DAC; but it could be the line out of your iRiver or the headphone out of an iPod. You will need a mini-to-mini cable to hook up your Micro Amp.

2.Headphone Out The headphone out is where you plug in your headphones. There isn’t room for a full sized jack, but this 1/8th inch mini-plug will take the small plug of all 1/8” headphone jacks. We also sell a short ﬂexible Grado 1/4”-1/8” adaptor for your big cans; and you can get a replacable Cardas headphone cable with a mini connector for many types of headphones, call us or consult our website for details.

3.Crossfeed Switch This switch engages the crossfeed circuit. The audio image on headphones is often not very good; typically the image is a blob on the left, a blob on the right, and a blob in the middle. The HeadRoom crossfeed provides the natural acoustic cross-feed normally heard at the left and right ear as heard from the left and right speaker. Adding back the normally occurring cross-feed signal gives your brain enough information to build the stable and natural audio image needed to have a quality listening experience. See pg.8 for more info on the HeadRoom crossfeed.

4.Gain Switch The 3-position Gain Switch accomodates various headphones’ power needs. For instance, the Low Gain setting would be used for in-ear monitors, allowing a larger range on the volume control pot. Experiementing with your headphones and the gain switch may help you to determine which setting you prefer. If have any questions regarding your headphones, feel free to call and ask us.

5.Volume Control You never know where the volume control should be set as different headphones often have widely different impedances and efﬁciencies, so use your ears to choose your listening level, not the level on the dial. (We recommend you choose a moderate level so as not to blow out your ears.) You also need to turn the amp OFF or ALL THE WAY DOWN before plugging in or unplugging your headphones to avoid short-circuiting the amp. As you turn the volume control knob clockwise, the volume increases.

6.Power Source Switch Immediately to the right of the volume control is the power source switch. It will run on either the two internal 9-Volt batteries or an external power supply. If the batteries are in and external supply is attached, the only way you can turn it off is by selecting ‘external’ and then unplugging the connector. We offer two power supplies: the less expensive, lovingly known as “brick”, power supply comes with the amp, the more expensive Desktop Power Supply will give you cleaner juice, and therefore cleaner, more dynamic sound.

Rear Panel

7.External Power Input Connect either your brick or Desktop Power Supply here.

8.Thumb Screws To change your batteries, unscrew the screws and remove the rear panel. Orientation of 2 nine-volt batteries is indicated by the illustrations on

the rear panel.	3

Headphone Amplifier & Digital-Analog Converter specifications

The HeadRoom Headphone Amplifier & Digital-Analog Converter (DAC) represents a pinnacle in audio technology, delivering exceptional sound quality and an immersive listening experience. This innovative device caters to audiophiles and casual listeners alike by providing an array of features that enhance sound reproduction, ensuring that every note is rendered with precision and clarity.

At the heart of the HeadRoom unit is its advanced digital-analog conversion technology. The high-resolution DAC converts digital audio signals into analog sound waves more accurately than traditional converters. This leads to reduced distortion, improved dynamic range, and a more faithful representation of the original recording. Users benefit from the ability to playback high-definition audio files, making the most of their music collection, whether it be lossless formats or high sample rates.

One of the standout features of the HeadRoom headphone amplifier is its robust amplification capabilities. Designed to drive a wide range of headphones, from standard models to high-impedance audiophile options, the amplifier provides ample power without introducing noise or distortion. This ensures that users experience rich bass, clear mids, and sparkling highs, making every genre of music come alive.

The device boasts multiple connectivity options, allowing it to seamlessly integrate with various audio sources. USB, optical, and coaxial inputs mean that it can easily connect to computers, digital music players, and even televisions. This versatility makes the HeadRoom an ideal choice for home studios, living rooms, or on-the-go listening.

Another remarkable characteristic of the HeadRoom headphone amplifier and DAC is its user-friendly interface. With intuitive controls, users can adjust volume levels and switch between inputs with ease. The compact and stylish design also ensures that it fits seamlessly into any audio setup, making it as aesthetically pleasing as it is functional.

In conclusion, the HeadRoom Headphone Amplifier & Digital-Analog Converter is a must-have for anyone seeking to elevate their listening experience. Featuring high-resolution DAC technology, robust amplification, versatile connectivity, and an elegant design, this device stands out as a premier choice for music lovers who demand the best in sound quality. By harnessing cutting-edge technology, the HeadRoom ensures that every listening session is not just heard, but profoundly felt.