We have been making great headphone amps, DACs and related products going on about three decades now, so there is a lot of HeadRoom Audio gear that has been discontinued over the years to make way for our newer, more advanced technologies.
We still have customers call us to say their 10 or 15-year old (or older) HeadRoom Audio unit is still going strong. If you happen to own one of these lovely old products, then a big congrats is in order - you've got some classic HeadRoom Audio gear built to perform for many, many years!
Below is a fairly complete listing of products we have made in the distant and recent past along with their respective owner's manuals available for download, starting with the most recently discontinued products first.
Let us know if you have any questions regarding our archived products or if you have an old product from HeadRoom Audio that we somehow missed in our archives - we'll add it right away!
The HeadRoom Ultra Micro DAC and Ultra Micro Amp were both excellent little products whose size belied their huge audio talents. We were sad to see them go, but most folks benefited more from our larger HeadRoom Audio 'Desktop Line' amp series (shown below) which provided equal sound quality but better connectivity and features. If you are lucky enough to own one or both of these small beauties, you have some of the best sounding gear per square inch on the planet!
The HeadRoom Ultra Micro DAC is able to buffer USB feeds from your computer for vastly improved low-jitter smoothness and re-define and musically improve S/PDIF digital data from optical or coax inputs via a single flick of a switch. It can also source a reference analog signal for your favorite headphone or powered speaker back-end.
Ultra Micro DAC Manual (pdf)
The HeadRoom Ultra Micro Amp uses superb TI 627 op-amps, outstanding quality metal film resistors and poly-film caps to completely fill the space right between your ears with magnificent music while taking up very little space on your desktop.
Ultra Micro Amp Manual (pdf)
When we first released the HeadRoom Audio 'Desktop Line' of products, there were a total of 72 configurations available.... Yep, we said 72. After a bit we realized this was just waaay too many flavors and began to create some popular pre-configured Desktop Amp versions. Then after another while, we found we still had too many confusing Desktop Line variations, so we made some hard decisions and pared down yet again. What remained was the Desktop Amp, the Ultra Desktop Amp and the Balanced Ultra Desktop Amp. No doubt, these were some truly superb-sounding HeadRoom Audio products!
The HeadRoom Balanced Desktop Amp was an all-in-one balanced Amp/DAC combo. The Balanced Desktop Amp unit was discontinued in order to make way for the HeadRoom Balanced Ultra Desktop Amp (BUDA) and Ultra Desktop DAC (UDAC) separates, both released in 2009. The Balanced Desktop Amp unit demolished all previous sound, size, and price barriers. It's immersive detail, presence, deeply warm sound and spacious soundstage were high-end audiophile headphone breakthroughs.
Balanced Desktop Amp Manual (pdf)
Developed with renown vacuum tube guru Mr Pete Millet, the HeadRoom Desktop Millet Hybrid Amp was an interesting creature - part tube amp (for the output stages), part solid-state design. Hence, a true hybrid topology. These products did not exactly fly off the shelves, but those few audiophiles that loved them became hardcore true believers, and for them it is indeed a very missed odd duck. This was a superior headphone amp for older rock and jazz recordings, as well as a lot of dance, EDM and remix tracks that sometimes tend towards being sharp or harsh.
Desktop Millet Hybrid Amp Manual (pdf)
This HeadRoom Audio 'Desktop' headphone amp with a built-in DAC option easily found a convenient spot on your desktop or nightstand and the huge variety of upgrade choices allow you to personally configure it as the perfect audio interface between your world of analog/digital media and the musical space between your ears.
Desktop Amp Manual (pdf)
This is one product we were happy to eventually replace with an improved version! The first generation of the HeadRoom Audio 'Portable Desktop Amp' did not use internal rechargeable batteries; you had to lug around a four D-cell battery brick which only lasted about 6-7 hours. Yikes. The Portable Desktop Amp/DAC fit nicely into a convenient spot on your home desktop, office desk or computer station. You could then unplug the sucker for listening on the move!
Portable Desktop Manual (pdf)
These HeadRoom Audio top flagship products were very impressive to behold as well to hear. They were incredibly cool, but ultimately we were happy to roll up all this excellent sound performance and ridiculous high-quality construction into our more affordable, much more reasonably sized HeadRoom 'Desktop Line' of products. The HeadRoom Max Balanced Amp pictured below could drive 4 standard single-ended headphones or two balanced-drive/XLR configured headphones and weighed in at a behemoth 19 pounds!
The HeadRoom Audio top-of-the-line flagship Max Balanced amplifier is nothing short of an all-out assault on the staid world of high end headphone amplification. It serves as the gleaming culmination of our long HeadRoom quest to create the very best headphone sound quality, bar none. By driving headphones via stereo left/right XLR cabling, we discovered balanced-drive improves imaging, transparency and overall soundstage clarity.
Max Balanced Amp Manual (pdf)
The HeadRoom Max Amp is nothing short of an all-out assault on the staid, boring world of audiophile headphone audio amplification. The Max Amp is the gleaming culmination of HeadRoom Audio's long quest to create the finest headphone amp sound quality available anywhere. The Max Amp makes your best headphones sing with unfettered joy. Your ears will love what they hear.
Max Amp Manual (pdf)
The Balanced Home Amp takes the regular HeadRoom Home Amp's acoustic performance up a big notch by driving headphones via stereo left/right XLR cabling. HeadRoom Audio discovered that balanced-drive improves the imaging, transparency and the overall soundstage clarity of top re-wired audiophile headphones.
Balanced Home Amp Manual (pdf)
The HeadRoom Home Amp is a highly refined route to personal audio bliss. A lively open soundstage, ultra punchy response and emotionally expressive dynamics are the musical hallmarks of the HeadRoom Home Amp.
Home Amp Manual (pdf)
This was our first generation of HeadRoom Audio's Micro Amp / Micro DAC products. They ran only on battery power which was great when on the road, but a hassle to lug around and constantly buy multiple sets of 9-volt batteries. Hence, it was not the greatest amp for office or home use, so we listened to our customer requests and eventually made both battery-powered and AC-specific Micro Line products.
We then offered the 2nd Gen rechargeable Portable Micro Amp (available with or without an internal DAC), as well as an AC-powered Micro Amp unit and an AC-powered Micro DAC unit, which could be used either as individual separate components or paired as a 'mini-stack' Micro amp/Micro DAC combo.
The HeadRoom Micro Amp found a convenient tiny spot on your desktop or nightstand and the variety of options and upgrades allowed you to configure it as the perfect interface between your world of media and the space between your ears.
Micro Amp Manual (pdf)
The HeadRoom Micro DAC unit is the perfect companion for your computer or other digital audio device. Using Cirrus Logic's flagship digital to analog converter (DAC) chip, it precisely reconstructs and improves the analog audio signal heard through your best headphones.
Micro DAC Manual (pdf)
At one point in the mid-2000s, we had 8 products in our HeadRoom Audio Mobile Line, the AirHead, Total AirHead, BitHead, and Total BitHead, all available in either black or clear cases. We were able to improve sound quality and reduce price when we consolidated these units into just 2 versions, the Total AirHead and Total BitHead.
The HeadRoom AirHead is the smallest and lightest portable headphone amplifier and processor in our line. You will hear a solid improvement in a high-quality headphone's ability to resolve musical detail, deliver tight bass and present a more natural audio image. The HeadRoom Total AirHead features all the same functionality as our standard HeadRoom AirHead, but with better internal components you will experience audibly upgraded sound quality.
AirHead & Total AirHead Manual (pdf)
The HeadRoom BitHead is a portable headphone amplifier that can be used both with a portable music player via analog line input or with a computer or laptop as a USB audio device. The HeadRoom Total BitHead features all the same functionality as our standard BitHead, but with better internal components you will experience upgraded sound quality.
BitHead & Total BitHead Manual (pdf)
These cute little amps can be considered the precursors to our first generation of HeadRoom Audio 'Micro Line' products. However, we only made 200 of each, so these are old-school collector items nowadays!
The HeadRoom Coda Amp is the classy finishing touch to our entire product line of aluminum enclosure amps. The HeadRoom Micro Amp is now the successor to the limited-edition HeadRoom Coda Amp.
The HeadRoom Overture DAC was the first time we paired up digital to analog conversion with headphone amplification. It was certainly not the last.
Coda Amp & Overture DAC (pdf)
Now we're stepping into the way-back machine to a previous life — the audio world before digital. OK not totally, but certainly before the iPod or computer listening really took off. We still talk to many customers who own amps from this line and use them on a daily basis — our HeadRoom Audio products really do stand the test of time!
The HeadRoom Little is our introductory home or office amp. It is a non-portable amp that is conveniently small and matches up well with any headphone from the Grado SR60 to the Sennheiser HD600 or HD650. The Little is perfect for someone who doesn't have a headphone jack, or someone who wants to improve the sound of the headphone jack on their home audio equipment.
Little Amp Manual (pdf)
The HeadRoom More Power is the power-supply upgrade for the Little HeadRoom Amp. The Little More Power combo approaches the type of sound quality achieved with the Home unit. It offers tight bass, sweeter mids, and very good detail – we actually were a bit shocked at the improvement.
Little More Power Manual (pdf)
The HeadRoom Base Station One is perfect for use with your HeadRoom Supreme or HeadRoom Cosmic Amp in a home or office environment. It is a very clean power supply that will work wonders for your electronics. It is designed to supply +/- 15 volts regulated power to our Supreme and Cosmic amps.
The HeadRoom Audio Supreme is indeed supreme at creating warm high-fidelity sound for the mobile traveler. If your primary need is an amp for traveling, the Supreme is all the amp you'll need, plus it still fits in nicely at home with a high-end system. The Supreme offers detailed, audiophile-quality sound and its supple tone is forgiving of mild audio inadequacies, making it suitable for a wide range of portable players from the mediocre to the very best. This amp was powered with an external 'brick' power supply, which housed four heavy D-cell batteries and ran for about 7-8 hours.
Supreme Manual (pdf)
Stunningly in the same audio performance class as the giant HeadRoom Audio 'Max' and 'Maxed Out Home' units, the HeadRoom Cosmic is our very best amp for portable use. The Cosmic takes full advantage of the superb premium internal module and highlights our other audio advances with high-end component design, allowing it to be a fast, highly detailed and wonderfully articulate portable headphone amp. There is nothing remotely like it anywhere. The sound is simply drop-dead gorgeous.
The HeadRoom Home Amp puts its money into audio components instead of cosmetics. It has an Avel-Lindberg toroidal transformer in the power-supply – very brawny. It has dual headphone jacks, but only one volume control. So to achieve the same sound level when using two headphones, the headphones must be matched in impedance and sensitivity.
Home Manual (pdf)
The HeadRoom Maxed Out Home looks like a Home Amp but sounds comparable to the Max Amp. The Maxed Out Home unit is a touch warmer-sounding than the Max. Of course its maybe lacking a bit in the cosmetic style department, but overall it presents a sonic representation that is very convincingly similar to the Max.
Maxed Out Home Manual (pdf)
The HeadRoom Max is our Home amp on audio growth hormones: Nobel pot, dual-mono power supply back to the shared Avel-Lindberg toroidal transformer, Burr-Brown 627 op-amps, dual- mono advanced HeadRoom modules, polyphenoline sulfide film capacitors, Neutrik headphone jacks, pseudo-Litz stranded circuit board traces. Man, that is a lot of good stuff in one HeadRoom Audio headphone amp!
The Max Manual (pdf)
The HeadRoom BlockHead is the world's first fully balanced, double dual-mono, mono-block headphone amplifier. Exclusively engineered and manufactured by HeadRoom Audio. This innovative design was the very first balanced-drive headphone amp available in the headphone industry!
BlockHead Manual (pdf)
The HeadRoom Audio Switch was exactly just that – a dead-quiet, silent switching box unit that simply allowed you to connect up to three audio sources via RCA inputs, and switch easily between them using the knob on the front panel.
This was the second iteration of our entry-level plastic enclosure portable amps.
The HeadRoom AirHead is the smallest and lightest portable headphone amplifier and processor in our line. You will hear a wonderful improvement in a high-quality headphone’s ability to resolve musical detail, deliver deep, tight bass and present a more natural audio image. The HeadRoom Total AirHead had all the same functionality as it's little brother, but better internal components to provide enhanced sound quality.
AirHead and Total AirHead Manual (pdf)
This is where our HeadRoom corporate records - and our memory - gets a little fuzzy. We will continue to add some of these historical products to the archive as we are able. If you own something from this era not pictured below, please email and we'll gladly add it.
The HeadRoom AirHead is the smallest and lightest portable headphone amplifier and processor in our line. You will hear a wonderful improvement in a high-quality headphone’s ability to resolve musical detail, deliver deep, tight bass and present a more natural audio image.
AirHead and Total AirHead Manual (pdf)
Our first prototype HeadRoom AirHead amp was initially released in limited quantities with 9-volt batteries and was in production for a very short period of time.
Okay, these really aren't HeadRoom Audio products But we were the exclusive dealer of these fine amps for a short period of time, so we thought we'd include them in our archive. The Wheatfield HA-1 was a really nice little tube amp striking an excellent balance between the characteristically warm tube sound and being dynamic and punchy. We thought it better than its big brother, the Wheatfield HA-2, for most rock and contemporary studio-recorded music.
Wheatfield HA-1 Manual (pdf)
One of the things we really like to do is hook up this Wheatfield amp when we're listening to raspy old LP records and poorly recorded CDs because this headphone amp will sweeten just about anything. Delivering a true lush deep tube sound, this amp is an old-timey audiophile delight.
One of the original flagship HeadRoom Audio headphone amplifiers. The HeadRoom Max is our Home amp on growth hormones: Nobel pot, dual-mono power supply back to the shared Avel-Lindberg toroidal transformer, Burr-Brown 627 op-amps, dual-mono premium HeadRoom audio modules, polyphenoline sulfide film capacitors, Neutrik headphone jacks, pseudo-Litz stranded circuit board traces. The Max is also equipped with a pair of line-level RCA output output jacks which allows it to be used as a class A/B pre-amp too.
The HeadRoom Home Amp has an audiophile-quality linear power supply that really lets the internal electronic module show its funky high-end stuff.
We think the HeadRoom Supreme will be around for a long, long time. Oh sure, it may go through a few changes; and maybe you'll be able to get it in different colors someday. The perfect partner at the office, assistant in the kitchen, or helpful workmate in the shop.
Think of the Little just like our Supreme amp, but with all of the extra money taken out of it and the performance left in. The Little one uses exactly the same electronics module as the Supreme, but lacks the DC-to-DC Converter, battery holders, and enclosure needed to make the Supreme portable.
The Static provided HeadRoom Crossfeed for listeners who owned electrostatic headphones, such as Stax.
The HeadRoom Standard Amp is the best unit for general portable audiophile use. It is best for people who want very high quality sound and own a really good headphone, but don't want to be tied to the wall socket for power.
The Premium is for people who appreciate the qualities found in top Audiophile category equipment. If you will be using HeadRoom mostly at home or in the office, and have very good headphones, this is the unit for you.
The HeadRoom Supreme Amp is built for true Audiophiles listening at home or office. It uses the same electronics as the HeadRoom Premium unit but includes a switchable near-ear emphasis filter. It also uses extremely high-quality capacitors and resistors on the main circuit board.
The JellyBean included a CD transport, de-jitter electronics, DAC, HeadRoom Home amp, and API AC filtering all in an Anvil air certified case. Each one is custom, so you can fit all kinds of stuff in it.
Headphones are actually capable of much more accurate sound than speakers on a performance-per-dollar basis. Why, then, don’t people use headphones more extensively for high-end listening? The answer, we believe, is that there are some fundamentally unnatural things about the way you perceive the location of the sounds you hear on headphones, and that artificiality gets in the way of having a gratifying listening experience.
In the 1990s and 2000s, commercial interest in solving the psycho-acoustic problems of headphones grew steadily and now a number of audio companies like HeadRoom develop crossfeed products and technologies intended to make sound more natural and truly 'life-like' on headphones.