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1. Line Output 

 

The line out is the best sounding stereo-mini plug out there. 

This is the signal source you plug into the input of your headphone amp.  You 
will need a mini-mini cable to plug from the Micro DAC into the Micro Amp or 
other amplifier with a line input.  HeadRoom sells various mini-mini cables; 
we highly recommend one of varying lengths offered by Cardas.  You can also 
use this output to connect your Micro DAC to another amplifier, home stereo 
receiver, or home theater system.

 

 

2. Optical Input 

 

The optical input is the first of the digital inputs we’ll 

discuss on the Micro DAC, and uses your typical Toslink connector.  You get 
this input signal from the optical output of your player. Not so many portable 
audio players have optical outputs,  but many portable DVD players and some 
hard disk drive players do. Of course, you can get this signal from many pieces 
of home equipment.

3. E/- 15VDC Power Input  

Plug in your power supply here.  

The ‘brick’ power supply is included with the Micro DAC; upon purchase you 
will have chosen a voltage appropriate to your country’s voltage requirement, 
either 110v  (North America, Japan, Singapore and others) or 220v (Europe, 
Australia, China, etc).  We also recommend

 

the Astrodyne switching power 

supply  or the larger Desktop Power Supply (both accomodate any country’s 
voltage requirement) as available power upgrades, these upgrades are par-
ticularly useful with the  Micro DAC.  Visit our website for more information 
about these power supply upgrades.

4. Coaxial Input 

 

The coaxial input is your typical coaxial connector.  We rec-

ommend using a 75 ohm digital cable when using the coaxial input.  Please 
visit our website at headphone.com for various coaxial cables. If your Coaxial 
cable is a standard size, you will need a mini adaptor that adapts a full size 
coaxial connector to a mini size, they are available for purchase on HeadRoom 
website, and are called RCA-Mini Mono adaptor.

5. USB Input 

 

The USB input gets its signal from a computer: laptop, desk-

top, or Micro DAC-Mobile PC; PC, Mac, or Unix. Most computers will instantly 
recognize the Micro DAC upon plugging it in, but occasionally some users may 
need to go into the audio preferences and select the “USB Audio Codec” as 
their primary sound device. You also may need to restart your music playing 
program (iTunes, Windows Media Player, etc) once the Micro DAC is plugged 
in.

The Micro DAC Rear Panel Descriptions

Содержание Micro DAC

Страница 1: ...ngle flick of a switch able to source a sweet analog signal for your favorite headphone or speaker based back end it s Super Micro DAC Okay so we got a bit carried away but so will you when your digital music so wonderfully fills that space right between your ears Either way you go you re getting the best DAC in Cirrus Logic s lineup some of the finest metal film resistors and poly caps money can ...

Страница 2: ...put selector switch 2 Power Switch The front panel of the Micro DAC is short sweet and elegant one simple set of input switches and another power switch along with the HeadRoom logo LED are all the grace that front of this simple unit ...

Страница 3: ...rn the volume down before switching betweenvariousinputsuntilyou grow accustomed to anyvolume levelchanges that may occur with varying source impedances 2 Power Switch When the power is set to on the red LED will illuminate in the center of the HeadRoom logo in the upper left hand corner of the amp There is nothing wrong with leaving your amp on or off for lengthy periods of time however we recomm...

Страница 4: ...C Rear Panel 1 Line Output 2 Optical Input 3 External Power Input 4 Coaxial Input 5 USB Input On the back of the unit you will find a line output external power input and three digital inputs optical coaxial and USB ...

Страница 5: ...t either 110v North America Japan Singapore and others or 220v Europe Australia China etc We also recommend the Astrodyne switching power supply or the larger Desktop Power Supply both accomodate any country s voltage requirement as available power upgrades these upgrades are par ticularly useful with the Micro DAC Visit our website for more information about these power supply upgrades 4 Coaxial ...

Страница 6: ... low noise low drift 1 metal film types Local device decoupling with low ESR tight tolerance PPS film capacitors Power supply decoupling with ultra low ESR electrolytics Shortest signal path possible PCB routed with high speed signal integrity and low noise in mind Multi layer PCB with dedicated low impedance power and ground layers Micro DAC Features upsampling circuitry current regulator diodes ...

Страница 7: ...aring it This tends to create an audio image that is a blob on the left blob on the right and a blob in the middle HeadRoom amplifiers cure the problem by allowing you to cross feed a little of the left and right channels across to each other through a short time delay using the crossfeed switch The usefulness of the circuit varies depending on what type of recording you are listening to mono and ...

Страница 8: ... www headphone com toll free 800 828 8184 outside U S 1 406 587 9466 15 VDC power input Optical cable Optical Input To a portable DVD player with Optical Output You will need an appropriate optical cable visit headphone com to purchase a cable Plug one end into your source and connect the other end into the appropriate input on the back of the amp Some DVD players may require you to turn on or act...

Страница 9: ...ll follow these same instructions Micro DAC Micro Amp Connecting Micro DAC to Amp with RCA Inputs If you are using a different amp that has a line input simply follow the instructions above If you are using a headphone amp that provides RCA inputs then you will need a mini RCA cable Plug the mini end into the output of the Micro DAC and RCA inputs into the back of the amp as always red or R denote...

Страница 10: ... You can email Sales sales headphone com or call 800 828 8184 If we can fix it while you ve still got the product everyone s happy Micro DAC Warranty The HeadRoom Micro DAC and are warrantied for two years If anytime within the first two years of your purchase you have a problem with your Micro Prod ucts you can return it for repairs under the terms of our 30 Day Guaranty HeadRoom is the only auth...

Страница 11: ...ng with a return shipping label and a card to include with the defective item to return to HeadRoom Important Fill in your name and original invoice number of your order on the card and return the item to HeadRoom within 2 weeks If we have not received the product after 2 weeks allowing shipping time we will charge your credit card the amount of the defective item Please understand that we enforce...

Страница 12: ...ls anywhere in between can also be damaging the louder the sound the shorter the time required to cause permanent damage Just to drive this message home here s a bit of information about hearing damage The most common type of damage caused by prolonged or exces sively loud sound is called tinnitus It manifests itself as a sustained buzzing and or ringing in the ears and can become a permanent cond...

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