One headroom airhead amp ,about 5 years old but hardy used at all,
there is a piece of Velcro attached to the back,also have a black headroom bag if interested for extra $10 The AirHead is simply the sweetest portable headphone amp a little money can buy. Put one between your portable player and quality headphones, and presto! The space between your ears becomes your own private listening room. The AirHead isolates your player from the complex load of the headphones while driving them with the authority and finesse of quality power amplification. The result? Exquisite audio right between your ears. How does the AirHead do it? First HeadRoom had listening tests to find the best in a bunch of specially designed op-amps that work well directly off batteries. Then HeadRoom mate its output to a wonderfully power hungry, discrete transistor output amplifier to drive the headphones. (Not to worry, it still gets 40 hours on a set of batteries with most headphones.) In the process, so to speak, HeadRoom also included a special circuit you can switch on that makes headphones more natural sounding. What you end up with is eye-blinkingly tight bass and drums; snappy cymbals, well located in space without harshness; and a liquid-smooth yet neutral midrange. Controlling your AirHead as it takes control of your headphones is a piece of cake. To the extreme left and right in the corners are the headphone jacks; they are in parallel so you can use either or both. The switch on the left is the on-off switch. Next to it is the power on LED. The lovely cozy nook in the middle surrounds the volume control. To the right of the volume control is the clip LED. When it starts to blink, you change the batteries. Next is the processor switch - that's the one that turns on the circuit to make headphone audio more natural. To the left rear of the AirHead is its power plug; it'll take anything from 5 to 12 VDC center pin positive, both regulated and unregulated supplies are optionally available. Plugging in the AirHead disconnects the internal batteries. At the right rear is its audio line input. It takes a standard 1/8th inch stereo mini-plug. HeadRoom included a nifty one foot long mini-to-mini cable so you can connect your portable player to the AirHead.
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