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HeadRoom Product Archive


Welcome to our HeadRoom Amp & DAC Archive

All HeadRoom products have been discontinued.  If you need any information about these products, potential upgrades, spare parts, repair work, or alternative options please feel free to give us a call at 800-828-8184 or email sales@headphone.com.

Since we have been making great headphone amps and related products for nearly 20 years, there is a lot that has been discontinued to make way for newer and more advanced technologies.  We have customers who call us all the time to say their 10 year old (or older) amp is still going strong. So, if you happen to own one of these great products, then congrats, you've got some great HeadRoom gear that will perform wonderfully for years to come!

Here is a collection of products we've made in the past, along with owner's manuals available for download. Starting with most recent products first, welcome to HeadRoom's Manufactured Products Archive!

Feel free to email us if you have any questions regarding our archive or if you own something that we are missing and we'll add it!

Generation III: 2005-2013

The “Ultra Micro” Line

The Ultra Micro DAC & Ultra Micro Amp were both great little products whose size belied their true talents. We are sad to see them go, but found most folks benefited more from our Desktop Amp which provides similar sound quality but better connectivity & features.  If you're lucky enough to own one or both of these, you own some of the best sounding gear per square inch on the planet!

Ultra Micro DAC

Ultra  Micro DAC

The Ultra Micro DAC is able to buffer USB from your computer for low-jitter smoothness; able to strip S/PDIF digital data from optical or coax inputs in a single flick of a switch; as well as source a sweet analog signal for your favorite headphone or speaker based back-end.
Discontinued 2010.
Ultra Micro DAC Manual (pdf)

Ultra Micro Amp

Ultra Micro Amp

The Ultra Micro Amp uses TI 627 op-amps, outstanding quality metal film resistors and poly-film caps to completely fill the space right between your ears with glorious music while only taking up very little space on your desktop.
Discontinued 2009
Ultra Micro Amp Manual (pdf)

The “Desktop” Line- Discontinued Products

When we first released the Desktop Line of products, there were a total of 72 configurations available.  After a bit we realized this was too many flavors, and began to create some popular 'preconfigured' versions.  Then after a while still, we realized we still had too many products, so we sat down, made some hard decisions, and paired down yet again.  What remains in the Desktop Amp, the Ultra Desktop  Amp, and Balanced Ultra Desktop Amp.  Here are a few that were still great products, and we were sorry to see them go.

Balanced Desktop Amp

Balanced Desktop Amp

The Balanced Desktop Amp was an all-in-one balanced Amp/DAC combo.  The Balanced Desktop was discontinued in order to make way for the new Balanced Ultra Desktop Amp (BUDA) and Ultra Desktop DAC, released in 2009.
The Balanced Desktop Amp demolishes all previous sound, size, and price barriers, and it's immersive sonics and spacious soundstage are an audiophile breakthrough.
Discontinued 2008
Balanced Desktop Amp Manual (pdf)

Desktop Millet Hybrid Amp

Desktop  Millet Hybrid Amp

The Desktop Millet Hybrid was an interesting creature, part tube amp (for output stages), part solid-state. Hence, hybrid.  These products did not fly off the shelves, but those that loved them were true believers, and for them, it is missed!
This is a great amp for your old rock and jazz recording, as well as a lot of the more current dance and remix tracks that sometime tend toward being harsh.
Discontinued 2008
Desktop Millet Hybrid Amp Manual (pdf)

Desktop Amp (multiple configurations)

This amp will easily find a convenient spot on your desktop or nightstand, and the variety of options and upgrades allow you to configure it as the perfect interface between your world of media and the space between your ears.
Discontinued 2008
Desktop Amp Manual (pdf)

2005 Portable Desktop (v.1)

This is one product we were happy to see replaced with our Current Portable Desktop Amp. This first generation did not use rechargeable batteries, instead you had to lug around a 4 D-cell battery case!
This amp will easily find a convenient spot on your desktop or nightstand, and the variety of options and upgrades allow you to configure it as the perfect interface between your world of media and the space between your ears.
Discontinued 2008
Portable Desktop Manual (pdf)

The “Max” & “Home” Lines of Products

These flagship products were impressive to behold and to hear.  As cool as they were, we were happy to roll all this excellent sound & quality into our more affordable and more reasonably sized Desktop Line. Our Balanced Max Amp weighed in at a whopping 18 pounds!!

Max Balanced Amp

HeadRoom's flagship Max amplifier is nothing short of an all-out assault on the world of headphone audio amplification and serves as the gleaming culmination of HeadRoom's 13-year quest to create the finest headphone amp available.
Discontinued 2008
Max Balanced Amp Manual (pdf)

Max Amp (single-ended)

Max amplifier is nothing short of an all out assault on the world of headphone audio amplification. The Max amp is the gleaming culmination of HeadRoom’s 13-year quest to create the fi nest headphone amp available anywhere.
Discontinued 2008
Max Amp Manual (pdf)

Balanced Home Amp

The Balanced Amp takes the Home amp's performance up another notch by driving headphones via stereo XLR cabling and further improves the imaging, transparency and overall soundstage clarity.
Discontinued 2008
Balanced Home Amp Manual (pdf)

Home Amp (single-ended)

The Home Amp is a refined route to personal sonic bliss. A lively, open sound-stage, punchy response and expressive dynamics are the hallmarks of the HeadRoom Home Amp.
Discontinued 2008
Home Amp Manual (pdf)

Generation I – “Micro Line”

This was our first generation of Micro Amp & Micro DAC products.  They ran on battery power, which was great when on the road, but a hassle to lug around or try to find 9 volt batteries. And, this was not the greatest for office/home use, so we heard our customer requests and made battery/AC specific Micro products, and now offer the Portable Micro, (AC) Micro, and (AC) Micro DAC.

2005 Micro Amp (v.1) 9 volt version

This amp will easily find a convenient spot on your desktop or nightstand, and the variety of options and upgrades allow you to configure it as the perfect interface between your world of media and the space between your ears.
Discontinued 2008
Micro Amp Manual (pdf)

2005 Micro DAC (v.1) 9 volt version

The Micro DAC 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 the analog audio signal you hear.
Discontinued 2008
Micro DAC Manual (pdf)

Generation III – “Mobile Line”

At one point, we had 8 products in our Mobile Line, the AirHead, Total AirHead, BitHead, and Total BitHead, all available in black or clear.  We were able to improve sound quality and reduce price when we consolidated these units into our 2 version of today, the Total AirHead and Total BitHead. 

AirHead & Total AirHead

The 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 Total AirHead features all the same functionality as our AirHead, but with better internal parts you will experience upgraded sound quality.
Discontinued 2008
AirHead & Total AirHead Manual (pdf)

BitHead & Total BitHead

The BitHead is a portable headphone amplifier that can be used both with a portable music player with line input, and with a computer or laptop as a USB audio device. The Total BitHead features all the same functionality as our BitHead, but with better internal parts you will experience upgraded sound quality.
Discontinued 2008
BitHead & Total BitHead Manual (pdf)

Limited Edition, spring 2005

These cute little amps were pre-cursor to our first generation of Micro Line products.  We only made 200 of each, these could be considered collector items!

Coda Amp (limited edition)

The Coda Amp is the finishing touch to our entire product line of aluminum enclosure amps. The Micro Amp is the current successor to the Coda Amp.
Discontinued 2005

Coda Amp & Overture DAC (pdf)

Overture DAC (limited edition)

The Overture DAC was the first time we paired up digital to analog conversion with headphone amplifications; and certainly not the last.
Discontinued 2005
Coda Amp & Overture DAC (pdf)

Generation II: 2001-2005 Line

And now, we're stepping into the way-back machine to a previous life — the world before digital. Okay, not really, but certainly before the iPod or before 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 products really do stand the test of time!

Little Amp

The Little is our introductory home amp. It is a non-portable amp that is conveniently small, and matches up well with any headphone from the Grado SR60s to the Sennheiser 600s. 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 equipment.
Discontinued 2005
Little Amp Manual (pdf)

Little More Power Source

The More Power is the power-supply upgrade for the Little HeadRoom. The Little More Power combo approaches the type of sound quality achieved with the Home unit. It offers tight bass, sweet mids, and good detail–we were shocked at the improvement.
Discontinued 2005
Little More Power Manual (pdf)

Base Station One Power Source

The Base Station One is perfect for use with your Supreme/Cosmic in a home environment. It is a very good power supply that will work wonders for your electronics. It is designed to supply +/- 15 volts regulated power to our Supreme and Cosmic amps.
Discontinued 2005

Supreme Amp

The Supreme is supreme at creating pleasant sound for the traveler. If your primary need is an amp for traveling, the Supreme is all the amp you'll need–plus it still fits in nice at home with a high-end system. The Supreme offers detailed, audiophile quality sound, plus it is forgiving of inadequacies, making it suitable for a wide range of portable players from mediocre to the best. This amp was powered with an external 'brick' power supply, which housed four D-cell batteries.
Discontinued 2005
Supreme Manual (pdf)

Cosmic Amp

In the same family as the Max and Maxed Out Home, the Cosmic is our best amp for portable use. The Cosmic takes full advantage of the premium module and highlights advances in other components, allowing it to be a fast, highly detailed, and articulate portable amp.
Discontinued 2005
Cosmic Manual (pdf)

Home Amp

The Home puts its money in 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–to achieve the same sound level when using two headphones, the headphones must be matched.
Discontinued 2005
Home Manual (pdf)

Maxed Out Home Amp

The Maxed Out Home looks like a Home and sounds comparable to the Max.  The Maxed Out Home is a touch warmer sounding than the Max, and of course it is lacking in the cosmetic department, but overall it presents a sonic representation that is convincingly similar to the Max.
Discontinued 2005
Maxed Out Home Manual (pdf)

The Max Amp

The Max is our Home amp on 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.
Discontinued 2005
The Max Manual (pdf)

BlockHead Amp

The BlockHead is the world's first fully balanced, double dual-mono, mono-block headphone amplifier.
Discontinued 2005
BlockHead Manual (pdf)

Switch Amp

The Switch was just that – a switch that allowed you to connect up to three sourced via RCA inputs, and switch easily between them using the knob on the front panel.
Discontinued 2005

Generation II – “Mobile Line”

This was the second iteration of our plastic enclosure portable amps.

AirHead and Total AirHead

The 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 Total AirHead had all the same functionality as it's little brother, but better internal components provide enhanced sound quality.
Discontinued 2005
AirHead and Total AirHead Manual (pdf)

Generation I: The 90′s

This is where our records get a little fuzzy. We will continue to add some of these archived products as we're able. If you own something from this era, please email and we'll add it to our archive!

AirHead

The 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)

AirHead (Initial Run)

Our first prototype AirHead was released with 9 volt batteries and was in production for a very short period of time.

Wheatfield HA-1 Amp

Okay, these really aren't HeadRoom Amps.  But we were the exclusive of these fine amps for a short period of time, so we thought we'd include them in our archive.A really nice little tube amp. Strikes an excellent balance between the characteristic tube sound and being dynamic and punchy. Better than it's big brother, the HA-2, for rock and contemporary studio recorded music.
Wheatfield HA-1 Manual (pdf)

Wheatfield HA-2 Amp

One of the things we really like to do is hook up this amp when we're listening to raspy old records and CD's badly recorded because this amp will sweeten just about anything. A true lush tube sound this amp is an old time audiophiles delight.

The Home Amp

The Home has an audiophile quality linear power supply that really lets the electronic module show its stuff.
Discontinued 1999

The Supreme (2nd Revision)

We think the Supreme will be around for a long, long time. Oh sure, it may go through a few changes; you'll be able to get it in different colors someday. The perfect partner at the office, assistant in the kitchen, or workmate in the shop.
Discontinued 1999

The Little

Think of the Little just like our Supreme amp, with all of the extra money taken out of it. 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.
Discontinued 1999

The Static

The Static provided HeadRoom Crossfeed for listeners who owned electrostatic headphones, such as Stax.
Discontinued 1999

Our Very First Products -  The Standard, Supreme, Premium & Jelly Bean Amp

The Standard Amp

The Standard is the best unit for general use. It is best for people who want quality sound and have good headphone, but don't want to be tied to wall socket for power.

The Premium Amp

The Premium is for people who appreciate the qualities found in Audiophile category equipment. If you will be using HeadRoom mostly home or in the office, and have very good headphones, this is the unit for you.

The Supreme Amp

The Supreme is for true Audiophiles. It uses the same electronics as the Premium but includes a switchable near-ear emphasis filter. It also uses very high quality capacitors and resistors on the main circuit board.

The Jelly Bean

The JellyBean includes a CD transport, de-jitter electronics, D-A, 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.

About HeadRoom Crossfeed

HeadRoom Crossfeed

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.