DIA-250S Integrated Amplifier/DAC User Manual
Contents
1. Cancel Apply Mac Installation and Set Up No driver installation is needed on the Mac The driver will be ano Audio Devices installed automatically when the DIA 250S is connected to your Mac for the first time D Built in Line Input Gato Audio USB 2 0 Audio Out T U Clock source Gato Audio Internal Clock j Built in Digital Input xi Input Output Built in Output To set up your Mac to stream audio to the DIA 250S s amp Built in Line Output Source Default n 1 c 1 Built in Digital Output Format 44100 0 Hz 2ch 24bt n T F Ch Volume Value dB Mute d ON TE Master 1 00 0 00 D l A 100 0 00 2 A 1 00 0 00 D Open Finder Choose Utilities gt Open Audio MIDI setup In Audio MIDI setup select the Gato Audio USB 2 0 device and then choose Use this device for sound output Set your prefered sample T ES configure Speakers rate and bit resolution at Format TT configure speakers F I E Use this device for sound output E j USB audio troubleshooting USB audio devices have stronger requirements for both USB hardware and software than other USB devices The following section describes the most common issues that may rise and their possible solutions Known hardware issues and possible solutions A faulty hardware component e g USB cable or USB port may not have an impact on standard USB devices such as a FLASH driv2. installed on the system Software components that make real time behavior of the operating system worse are not compatible with audio streaming applications in general Conflicting drivers Generally it can be stated that the set of device drivers that ships with Windows behaves well If problems occur then they are typically caused by third party drivers that are to be installed for hardware which Windows does not support by default So if a hardware component is supported by an in box driver then this driver is to be preferred and a third party driver should not be installed W LAN or Ethernet device drivers Quite often it can be observed that device drivers for W LAN adapters monopolize the computers CPU causing clicks and drop outs when streaming audio to USB A few Ethernet drivers also have such issues Try to find an updated W LAN driver or try an older version of the driver If no suited driver can be found disable W LAN or Ethernet while audio streaming is running Virus scanners or personal firewall software Normally this kind of software includes some components to perform filtering or scanning work in the computers CPU Often such components keep the CPU busy for long periods which can cause clicks and drop outs when streaming audio to USB Try to pause or disable the software while streaming audio to USB Try uninstall the software and use a different product with similar functionality Gato Audio DIA 250S Integrated Amplifi
3. We hereby cordially invite you to join the Gato Audio family by registering your product online You may also consider signing up for our newsletter to receive information about exciting new products events and technical updates All this and more on www gato audio com Our very best Gato Audio Package contents Please check that the following is included in the package e 1 Gato Audio DIA 250S integrated amplifier e 1Mains cable e 1 Gato Audio RC 3 remote control e 1CR20323V battery 1CD ROM with USB driver for Windows 1 Bluetooth antenna This manual which you should be reading now Gato Audio DIA 250S Integrated Amplifier DAC Safety first Mains plug and cable Insert the mains plug fully into the mains outlet socket Donotuse any mains cable other than the one provided with this amplifier Donot defeat the ground connection Do not move the amplifier around while it is connected to mains Donot place heavy objects on the mains cable or place the cable near high temperature objects Donotuse damaged mains plugs or socket outlets Liquids Electricity and liquids are not a safe combination therefore When cleaning the amplifier remove the mains plug Do not handle the mains plug with wet hands Donot spray any liquid directly onto the amplifier Do not place liquid containers above or near the amplifier Keep liquids away from the amplifier And e This is nota toy
4. sign will blink in the right display Turn off the amplifier mains switch and please check the following before turning the mains on again The speaker cable and cable connections Theconnected equipment That you are not playing above the clipping area of the amplifier If the amplifier keeps blinking after the powering up routine please turn off the amplifier and contact your dealer or the national distributor Gato Audio DIA 250S Integrated Amplifier DAC RC 3 remote control The RC 3 is an infrared remote control for the Gato Audio DIA 250S How to insert replace the battery The RC 3 runs on a standard CR2032 3 V button battery 1 Remove the small lid on the bottom side of the remote 2 Insert or replace the CR2032 3 V button battery 3 Reinstall the small lid on the bottom side of the remote Functions ES Display N Standby 05 Press the button to put the amplifier in standby D Press it again to turn it on 7 i Display Press the button to dim the display RCA Optical Press it again to restore the display to normal 3 gt D Mute h Press the button to mute the amplifier Input 1 Input 2 Balanced Press it again to return to the previous volume level i 5 USB Press the button to select the digital USB input channel j RCA Press the button to select the digital coaxial input channel Optical Press the button to select the digital optical input channel Input 1 Press the button to select the a
5. GATO D AUDIO DIA 250S Integrated Amplifier DAC User Manual Gato Audio DIA 250S Integrated Amplifier DAC Contents Contents Don t be a stranger line Package contents Safety T esitate DIO O I About the amplifier General design Class D Output Stage Sco rea Seriana Mesas iranica Analogue Input Stage A COT GIGI cut eren Socal cei pl ch een cas ian USB Versatility Connectivity LED Display Setting up your amplifier Basic connection Overview Connecting to a Bluetooth device Connecting a computer to USB iii Connecting an Apple iPad to USB n How does it work Power on sss Standby Adjusting the volume Mung Input selection Display dimming iii Sample rate read oUt ie Direct Protection Warnings rotos ED one ot B ost RC 3 remote control coo b ebd How to insert replace the battery FUNGHONS ss Installing USB Driver Requirements Windows PC Installation and Set Up iii Mac Installation and Set Up n USB audio troubleshooting Makeitlast If all else fails Technical specifications E uw n UU vu MEO iu vu NNNN OO n AO XO 00 00 00 00 Oo 00 00 Ad 10 EN NS ES 12 1B 14 14 219 GATO AUDIO Don t be a stranger Thank you for purchasing the Gato Audio DIA 250S We are absolutely confident that it will bring you many hours of listening pleasure
6. Harmonic Distortion Signal to noise ratio Line out maximum level Total Harmonic Distortion Input impedance Line output impedance Voltage gain Recommended speaker load Connectors Balanced analogue inputs Unbalanced analogue inputs Digital inputs Balanced analogue outputs Unbalanced analogue outputs Speaker output Trigger 12V Size amp Power Power Requirements Fuse Power consumption stdb idle max Dimensions WxHxD Weight GNO AUDIO 2x 250W 80 2x500W 40 20 Hz 20 kHz 0 5 dB and 2 Hz 70 kHz 3 dB lt 0 01 at rated power gt 110 dB 13V balanced 6 5 V unbalanced 0 001 96 pre out 20 kO RCA or 40 kO Balanced 750 26 dB 10 db headroom 40 160 1 pair gold plated XLR Neutrik 2 pairs of gold plated RCA stereo 1 USB type B 1 Toslink 1 RCA coaxial 1 Bluetooth 1 pair gold plated XLR Neutrik 1 pair of gold plated RCA Stereo 2 pairs of gold plated safety banana 1 mini jack 115 VAC or 230 VAC 50 Hz 60 Hz 1000W max 20 mm sand filled 6 3 AT 1W 23W 1000W 325 x 105 x 420 mm 12 8 x 4 1 x 16 5 10 kg 22 Ib GATO AUDI Gato Audio Marielundvej 28 DK 2730 Herlev Denmark Phone 45 4095 2205 www gato audio com hello gato audio com a Ei 2 a a S 2 gt m 3 Q Zz e 8
7. and should not be handled like one by children OR adults Donotremove the covers of the amplifier for service see page 14 Donotattempt to put foreign objects inside the amplifier for service see page 14 Donotcover the amplifier with cloth Do not place the amplifier on sloped or unstable surfaces When the amplifier will not be used for a long time remove the mains plug Never connect or disconnect cables when the amplifier is switched on Donotshort the amplifier outputs This unit is made for indoor temperature 15 25 C or 59 77 F If it has been exposed to cold temperature let it adjust itself to indoor temperature before use Make sure that your amplifier is able to breathe by securing a minimum safe distance around the heat sinks of 100 mm or 4 inches Theamplifier can get hot during use Normal operating temperature is from room temperature to 50 C or 1229 F 100 mm 4 I NC Standby GATO AUDIO About the amplifier General design The Gato Audio DIA 250S Class D integrated amplifier are designed and built to a vision of combining technology power sonic performance connectivity versatility stunning looks and compact design The amplifier features built in D A converters with electrical optical USB and aptX Bluetooth inputs High quality analogue input is via RCA connectors or via XLR connectors for true balanced signals Both balanced and unbalanced line outputs ar
8. be shown for 4 seconds and then return to display the sample rate To switch between the two read out modes press and hold the Dim button on the back of the x No sample rate available amplifier for 2 seconds Home Theater direct HOT warning OFF warning GATO AUDIO Direct The Direct function bypasses the volume control turning this amplifier into a fixed level power amplifier This can be very useful in surround setups To activate this mode select input IN1 and press and hold the Input button on the front panel of the amplifier for 4 seconds The left display will read HT To disable the function press and hold the Input button on the front panel of the amplifier for 4 seconds The amplifier remembers this setting in standby mode and when the DIA 250S is switched off Protection warnings The DIA 250S is equiped with a sophisticated protection circuit to protect the amplifier and or the connected equipment in case of failure The DIA 250S features two warning signals A HOT sign will blink in the right display due to temperature problems If this happens turn off the amplifier mains switch and wait about 10 minutes for the heat sinks cool down before turning on the mains again If a lot of heat is generated within a short period of time please check the following Theventilation around the amplifier The speaker cable and cable connections The specifications of the connected loudspeakers An OFF
9. e or a printer but can be catastrophic for a USB audio device USB cables Quite often the USB cable or its connectors is the cause for USB signal distortions Some cables available in the market are not suited for USB 2 0 high speed communication 480 Mbps Also the maximum allowed cable length of 5 meters should not be exceeded Try using a different cable Try a shorter cable less than 2 meters Stay away from special USB cable offerings optimized for audio or cables which include additional functionality such as status LEDs PCB mounted USB ports On some PC main boards or laptops signal quality of some USB ports is insufficient for USB audio streaming The cause could be that on the PCB USB signals are routed close to a switching voltage regulator for example Try using a different USB port to connect the audio device USB hubs and front panel mounted USB ports External USB hubs and ports mounted on a front panel or elsewhere in the PC case are a possible source of USB signal distortion Quality of cables or connectors used to connect the external USB port with the main board could be insufficient or internal cables are placed close to the power supply or other sources of electrical noise Try using a USB port that is mounted directly on the main board Known software issues and possible solutions Due to the real time nature of USB audio streams there are also requirements for the operating system and third party software components
10. e provided The DIA 250S offers 250 watts per channel into 8 ohm loads and doubles its power output into 4 ohm loads Modern Class D technology enables extremely high efficiency thereby providing both enormous power and huge voltage swing Besides the obvious benefit of having this much power the huge voltage swing from these powerhouses gives effortless dynamic headroom without clipping all in the service of bringing you stunning musical performance Class D Output Stage The DIA 250S amplifier offers state of the art Class D output stages with dedicated and optimized switch mode power supplies The multiple stage power amplifier is built around proven technology from International Rectifier optimized with a precision high frequency oscillator and PWM modulator A pair of precision switching MOS FET transistors with super low on resistance ensures the high frequency switching is done perfectly and with as little loss as possible The output filters are made from quality PP capacitors and low DCR coils converting the high power PWM signals back into detailed and smooth analogue music Analogue Input Stage The analogue input stage is where everything begins It not only connects external inputs and the built in D A converter with the output stage it adapts impedances adjusts levels and switches signals A super gentle embrace of the delicate analogue signals is important for the total performance of the amplifier At Gato Audio we have utilized our ma
11. er DAC Make it last Please apply simple common sense to maintain the sound quality and lifespan of your new Gato Audio amplifier Here are a few guidelines Regular care wipe the surfaces carefully by using a clean soft dry cloth Cleaning if necessary wipe the hard surfaces clean using a soft cloth dampened only with clean water Grease stains or finger marks can be removed carefully with a clean soft cloth lightly dampened in a mix of clean lukewarm water and a single drop of dish washing liquid Then wipe the surfaces dry using a soft dry cloth e Be careful never to use hot water or any type of concentrated detergent solvent thinner or any other volatile substance on the surfaces or you may cause permanent damage to the surface coating Keep the cabinet away from prolonged contact with rubber or PVC materials Donotexpose the amplifier to direct sunlight or other heat sources If all else fails don t panic Every Gato Audio product comes with a minimum 2 year warranty See our website for details This warranty does not cover damage or wear directly or indirectly caused by improper use violence tampering with or unauthorized access to or servicing of any part of the product If you are in need of service or repair please do not hesitate to contact us at hello gato audio com or visit our website www gato audio com for more information Technical specifications Output power Frequency response Total
12. faion Continuing your installation of this software may impair or destabilize the correct operation of your system either immediately or in the future Microsoft strongly recommends that you stop this installation now and contact the software vendor for software that has passed Windows Logo testing Continue Anyway STOP Installation Gato Audio DIA 250S Integrated Amplifier DAC After the installation follow these steps to setup Windows to stream to your Gato Audio device C kel Click Start gt open Control panel Select Hardware amp sound click on Sound Select Gato Audio DIA 250 as To adjust output format click Properties and playback device and click Set Default select the Advanced tab a Sound g Properties Speakers Playback Recording Sounds Communications General Levels Enhancements Advanced Select a playback device below to modify its settings Default Format Select the sample rate and bit depth to be used when running g Speakers in shared mode High Definition 24 bit 48000 Hz Studio Quality 16 bit 44100 Hz CD Quality Reakek Digit Outpt gt 16 bit 48000 Hz DVD Quality Realtek High Definition Audio E16 bit 96000 Hz Studio Quality Read 16 bit 192000 Hz Studio Quality sa g this device Speakers i 24 bit 48000 Hz Studio Quality G Aud DIA 0 2 24 bit 96000 Hz Studio Quality D 24 bit 192000 Hz Studio Quality Restore Defaults Configure Set Default Properties
13. h button on the remote control Press the mute button once more to return to the previous volume level Mute Input selection Use the Input button on the front panel to select between the different input channels Inputs can also be selected with the remote by pressing the direct input selection buttons or the W or A buttons The input will switch the channels in this order CINI gt IN2 gt BAL gt USB gt RCA gt OPT gt BT gt Display dimming The display can be dimmed by a pressing the Display button on the RC 3 remote control or the Dim button on the back of the amplifier The display is now turned off except for two LEDs indicating the dimmed display state Whenever a change is made to the settings of the amplifier such as adjusting volume or changing input the display will light up for 4 seconds showing the Display dim change that is being made Press either of the buttons again to exit display dimming mode Sample rate read out The DIA 250S can read and display the sample rate of the USB RCA OPT and BT digital input channels The DIA 250S can be set to display this in two different ways 1 The display on the right shows the selected input channel eg USB Press the USB button on Sample rate read out the RC 3 remote control and the sample rate will be shown in kHz instead of selected input channel name for 4 seconds 2 The display on the right only shows the sample rate When changing input channels the channel name will
14. nalogue Input 1 channel Input 2 Press the button to select the analogue Input 2 channel Balanced Press the button to select the analogue balanced input channel BT Press the button to select the digital Bluetooth input channel Volume up Press the button to increase the volume Volume down Press the button to decrease the volume Next input channel A Press the button to select next input channel GATO AUDIO Previous input channel W Press the button to select previous input channel Installing USB Driver Requirements Minimum computer configuration required for USB audio streaming Intel Core 2 1 6 GHz or AMD equivalent with 1 GB RAM USB 2 0 interface Oneofthe following operating systems e Windows XP with SP3 32 bit Windows Vista with SP2 32 bit amp 64 bit e Windows 7 8 and 10 32 bit amp 64 bit Apple OS X 10 6 4 Snow Leopard or higher Because there are so many PC configurations out there we cannot guarantee that you will be able to stream audio on USB even if your system meets the requirements above Windows PC Installation and Set Up Before you are able to stream audio from USB on your Windows PC the first time you will have to install the Gato Audio USB driver A CD ROM with a USB driver is supplied with the DIA 250S but we recommend to go online to www gato audio com and download the latest driver for your specific Windows version You will find it in the download section in the bot
15. nection Kit is required for this feature The kit is available from the Apple online store or other Apple accessory shops Plug the camera connector into the iPad dock connector and connect it to the DIA 250S with a USB cable Simply start your music app and enjoy the music Connecting an Apple iPhone to USB Like the Apple iPad it is possible to stream music from an iPhone to the USB port of the DIA 250S The procedure is exactly the same as for the iPad however it is only possible for iPhones with IOS 7 and later Gato Audio DIA 250S Integrated Amplifier DAC How does it work Power on Use the mains switch on the back of the amplifier to turn it on The amplifier is now in standby mode Only the microprocessor and the standby LED are powered during standby Therefore the DIA 250S has an ultra low standby power consumption of less than 1W Standby Activate the amplifier by pressing I on the remote control or the Standby button on the front panel When the amplifier enters standby mode again it will remember the selected input channel and volume level If the volume level is higher than 50 it will be reduced to 50 when the amplifier exits standby mode Standby Adjusting the volume Turning the volume control knob clockwise increases the volume Turn it counter clockwise to decrease the volume The volume can also be adjusted by pressing the or button on the remote control Muting For complete silence simply press the
16. ny years of experience in voicing analogue amplifiers to make this particular stage perform at its very best We tuned the input stage to perform with a natural and lifelike sound affecting the original signal as little as possible D A Converter The built in D A converter offers real high end performance enabled by the use of a dedicated power supply a balanced driven Burr Brown PCM1794 D A converter an optimized high bandwidth I V converter and an analogue stage with low Q low pass filters All digital inputs are upsampled to 24bit 192kHz This D A converter will upgrade any digital source such as wired or wireless streaming from your computer or CD drive to a high end level of detail and musical performance USB Versatility The true 24bit 192kHz digital input via the state of the art asynchronous USB circuit is especially worth highlighting It enables the possibility of a sonic performance vastly above that of any CD It is the key note of making these amplifiers a quality enhancing connection point for your Mac PC or even your iPhone and iPad Connectivity We had our eye on versatility and connectivity when designing the DIA 250S The amplifier offers not only a wide range of digital and analogue inputs but also line outputs a trigger signal for external power amplifiers and a configurable home theater input The HT input can turn the amplifier into a fixed level power amplifier for use in a surround setup without compromising the
17. sonic performance LED Display By choosing a large high contrast white LED dot matrix display we gave the DIA 250S a distinct appearance easy to understand easy to see and operate even at remote control distance In addition to displaying output level and selected input it also displays the sample rate of the digital input revealing the quality The LED display is fully dimmable by the remote control Gato Audio DIA 250S Integrated Amplifier DAC Setting up your amplifier Basic connection Follow these steps for setting up your system in this sequence 1 Place the DIA 250S as per the instructions on page 4 2 Connect inputs to the amplifier 3 Connect your loudspeakers to the amplifier 4 Connect mains power cable to the amplifier and turn it on 5 Select input and volume setting Enjoy Overview Mains Mains Fuse Right speaker Bluetooth Bluetooth Left speaker switch socket compartment terminals Connect button Antenna terminals Speaker R z Antdnna 4 E e a nm O Coax a ff L L L USB Go Go LJ Dim Toslink ce x A eerte ce ee ern muon ah Wet I 12V trigger USB Optical Coaxial Analogue Bluetooth Balanced Analogue Balanced Display setting input input inpu
18. t inputs input output output l Toggle On Off iPad Apple AirPort Express Sonos Phono Preamp Phone High End CD Player Power Amp External Equipment Mac AppleTV Squeezebox Surround Preamp Receiver Tablet Professional Audio Active Speaker Equipment PC Harddisk Player CD DVD BD Player TV Mac Subwoofer Laptop Streaming Player Docking Station CD DVD BD Player PC TV or Sat Cable Receiver Docking Station Laptop Volume read out Input Sample rate read out Standby button Volume control knob Input selection button GATO AUDIO Connecting to a Bluetooth device Before connecting the DIA 250S to a Bluetooth device you will need to mount the antenna to the back of the amplifier Then go to the settings of the Bluetooth device and connect to Gato Audio DIA 250S To switch a connected device to another either go to the Bluetooth settings of the connected device and disconnect the amplifier or press the BT Connect button on the back of the DIA 250S Then connect the new device The BT Connect buton on the back of the amplifier will blink when it is ready but not connected to a device The button will light up continuesly when the amplifier is connected to a device Connecting a computer to USB Before connecting the DIA 250S to your computer via USB please read installation instructions on page 11 Connecting an Apple iPad to USB It is possible to stream music from an iPad to the USB port of the DIA 250S An Apple Camera Con
19. tom of the DIA 250S product page Connect your DIA 250S to a free USB port on your computer and start setup exe either from the CD ROM or the downloaded driver Choose your prefered destination for the Click Next to start installation installation and click Install Setup Choose Install Location Welcome to the Gato Audio USB Choose the folder in which to install Gato Audio USB Audio Driver v3 20 0 p Audio Driver v3 20 0 Setup Wizard aad Setup will install Gato Audio USB Audio Driver v3 20 0 in the following folder To install in a This wizard will guide you through the installation of Gato different folder dick Browse and select another folder Click Install to start the installation Audio USB Audio Driver v3 20 0 Itis recommended that you dose all other applications before starting Setup This will make it possible to update relevant system files without having to reboot your computer Click Next to continue Destination Folder Space required 1 7MB Space available 127 268 P Em During the installation process on Windows XP you may see this message Please just click Click Finish to complete the installation Continue anyway Software Installation Completing the Gato Audio USB Audio Driver v3 20 0 Setup Wizard t The software you are installing has not passed Windows Logo L testing to verify its compatibility with Windows XP Tell me why this testing is important Click Fh to complete the mtal
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