DPA-4004 4 Channel Power Amplifier User Manual
Contents
1. 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 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 Do not expose 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 8 Q Output power 4 Q Frequency response Total Harmonic Distortion Signal to noise ratio Input impedance Voltage gain Recommended speaker load Connectors Balanced analogue inputs Unbalanced analogue inputs S2. will go into standby when the connected equipment goes into standby Channel read out The central display of the amplifier will show the number of available channels according to the current configuration Please see page 8 for further information about the configuration Display dimming The display can be dimmed by pressing the Display on the back of the amplifier The display is now turned off except for one LED indicating the dimmed display state Press the button again to exit display dimming mode Protection warnings The DPA 4004 is equipped with a sophisticated protection circuit to protect the amplifier and or the connected equipment in case of failure The DPA 4004 features two warning signals An H for HOT sign will be shown in the display due to temperature problems One or two dots will flash indicating which output section is failing 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 The ventilation around the amplifier The speaker cable and cable connections for the displayed channels The specifications of the connected loudspeakers for the displayed channels An F for FAIL sign will be shown in the display One or two dots will flash indicating which output stage is failing Turn off the amplifier mains switch and please check the fo
3. GATO AUDIO DPA 4004 4 Channel Power Amplifier User Manual Gato Audio DPA 4004 4 Channel Power Amplifier Contents DONE HE a SANGEN u um u u da q ass Package contents u uuu usya ays a yaaa uy laya aint A AR AE yeu A aaah yanqa pushay aaa ahh ASME Safety deis Abouttheamplifier uu m Lu ym at a a akana eb apaspa SE Ret alte oa a ap ypas apay aka qhu at yu Setting UP your ampliar m ANA u amun m a e am mak MUN Saku usaha a Eak de ao Dee Rae BASIC connection rn uum u mm nd O at de a et a ce dE at a a E OVEIVICW 5 anye ten e gave trece de PI NEN L MAN AP NEN AN e tn AN P aneas aitor MA Al NO pet w AR Q A ak ad ot e R D ER ABIL AD pa HOW OCS TE Work cti POWER MR saa ana ON AAS US A Net Ds EA TE ke Ree ON AM e D SA e MAR SERA han P ta b ON MY be Stand DY Mon ca eats tat da Ne Me ARN ee Ain at ea VW L AE GATE No SO A NA e PWA A a say A GE asua ay N b E ON n he teu a a ay SANS SBR uum W Channeltreadi OUT aon 6tak tait kat tp ala en tr ak laa el n et al a ef at ae ed ca kk e a an et pap a ep be ei n bon Aa Didac ora A AAA A kashan A Aaa asa Configuration Single ended and bridge configuration GAIN SIN NA RN ta AR AR Aa apa e A A RU A ARR Atta dd T AA ME L O O O ankas shkana anun LEO OS AU OEA AAA A A A E tasas sata hasa sa TA ARIA IS ANA A tt khas STI Pe Mae Techni al specifcations u u wenn ii ancora teint net ae e kk n itunes n ods n Soh a te Ah suid Ron La An tan cents einen o o N
4. NNNNSN co 10 10 11 GATO AUDIO Don t be a stranger Thank you for purchasing the Gato Audio DPA 4004 We are absolutely confident that it will bring you many hours of listening pleasure 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 We are also present on several social media like Facebook Twitter Instagram Google and LinkedIn 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 1 Gato Audio DPA 4004 power amplifier e 1 Mains cable e 1 Mini jack link cable e This manual which you should be reading now Gato Audio DPA 4004 4 Channel Power Amplifier Safety first Mains plug and cable e Insert the mains plug fully into the mains outlet socket Do not use any mains cable other than the one provided with this amplifier Do not 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 Do not use 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 han
5. dle the mains plug with wet hands Do not 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 not a toy and should not be handled like one by children OR adults Do not remove the covers of the amplifier for service see page 10 Do not attempt to put foreign objects inside the amplifier for service see page 10 Do not cover 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 Do not short the amplifier outputs e 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 The amplifier can get hot during use Normal operating temperature is from room temperature to 50 C or 122 F 100 mm 4 J 100mm 4 DPA 4004 De ae ge E GATO AUDIO About the amplifier General design The Gato Audio DPA 4004 is a 4 channel flexible power amplifier that offers unparalleled power and performance in the smallest and most beautiful package Th
6. e DPA 4004 offers no less than 4x400W 80hm doubling in 4ohm Each pair of channels is bridgeable enabling this fully configurable powerhouse to be used for either multichannel setups active systems or for bi amping speakers This amplifier is the obvious choice for the Gato Audio PRD 3 preamplifier DAC but is also very suitable as a workhorse for the integrated amplifiers DIA 250 and DIA 400 offering even more channels and flexibility For multichannel systems it will serve as a slave for a surround processor perhaps in combination with a PRD 3 DIA 250 or DIA 400 enabling their Home Theater setting Class D Output Stage The DPA 4004 amplifier offers four state of the art Class D output stages with dedicated and optimized switch mode power supplies The multiple stage power amplifiers are 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 Gato Audio DPA 4004 4 Channel Power Amplifier Setting up your amplifier Basic connection Follow these steps for setting up your system in this sequence 1 Place the DPA 4004 as per the instruct
7. he unbalanced or the balanced connector NEED The amplifier should be turned off while sections and cables are configured The specific in and outputs for each section during bridge mode is shown in the below illustration Speaker terminals for Speaker terminals for the bridged channel 3 4 the bridged channel 1 2 GB GED qe J 1 gt Q F RCA or XLR for the RCA or XLR for the bridged channel 3 4 bridged channel 1 2 GATO AUDIO Gain setting The DPA 4004 has a default voltage gain setting of 26dB In some system setups it can be useful to change the voltage gain to adapt different connected equipment The gain setting switches are located inside the DPA 4004 and can be adjusted with the assistance of a technician For each channel there is a two way micro switch with these combinations Gain adjustment SW1 SW2 2 0 dB on on I 0 0 dB default on off 2 5 dB off on 6 0 dB off off 1 The default state matches the voltage gain for the Gato Audio DIA 250 and DIA 400 integrated amplifiers Please note that when a section is bridged both micro switches for each channel must be set to the same value Gain micro switch placement on the PCB Chi Ch2 Ch3 Ch4 Gato Audio DPA 4004 4 Channel Power Amplifier 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
8. ions on page 4 2 Connect all inputs to the amplifier 3 Connect your loudspeakers to the amplifier 4 Connect mains power cable to the amplifier and turn it on 5 Enjoy PLEASE NOTE It is only possible to use either XLR or RCA for each channel Connecting both XLR and RCA inputs at the same time in the same channel may damage the amplifier or the connected equipment Overview Mains Mains Fuse 4 pairs of speaker switch socket compartment terminals Yo p G g Chi cha am O a 3 AN aa AK YAN FN a A NS y y YA N ON f y A weed WSF SSI WF WF x WY NS Wa x Wa Ch 4 Bal Ch 2 Bal 60 A O Denmark o A Display Link oe YO W Y E A Ch ce x a G 12V trigger Analogue Balanced Bridge Display setting inputs inputs switch XLR female pin out Pin2 Pin1 Shield Channel read out DPA 4004 GATO AUDIO Standby 4 Channels Display dim Hot warning Ch1 2 Ch3 4 Failure warning Ch1 2 Ch3 4 How does it work Power on Use the mains switch on the back of the amplifier to turn it on The amplifier will start up immediately Standby To set the amplifier in standby mode connect it to a piece of equipment e g pre amplifier or integrated amplifier featuring a 12 V trigger with the mini jack cable The power amplifier
9. llowing before turning the mains on again The speaker cable and cable connections for the displayed channels The connected equipment for the displayed channels That you are not playing above the clipping area of the amplifier If the amplifier keeps failing after the powering up routine please turn off the amplifier and contact your dealer or national distributor Gato Audio DPA 4004 4 Channel Power Amplifier Configuration Single ended and bridge configuration The DPA 4004 can be configured to 2 3 or 4 channel operation accommodating your specific system requirements The DPA 4004 offers in total four discrete output stages organized in two sections each containing two channels All sections can be configured as single ended or as bridged outputs Each section is configured by its own little switch on the back of the amplifier Move the switch towards if you want to set the section in two channel mode single ended or towards if the section should be set to one channel mode bridge This individual control of each section makes it possible configure the DPA 4004 exactly to your needs or system requirements Please note that when a section is configured as bridge the connections on the back of the amplifier are changed the speaker will share connectors from both channels in this section Use the highlighted from one channel and from the other channel Use only one of highlighted inputs in this section either t
10. peaker output Trigger 12 V Size amp Power Power Requirements Fuse Power consumption stdb idle max Dimensions WxHxD Weight 4x 400W 2x 1400W 1x 1400W 2x 400W 4x 800W we do not reccommend 4 Q load in bridge mode 20 Hz 20 kHz 0 5 dB and 2 Hz 70 kHz 3 dB lt 0 01 at rated power gt 110 dB 20 kQ RCA or 40 kQ Balanced 26 dB Single Ended 4 16 O Bridged 8 16 Q 2 pairs gold plated XLR Neutrik 2 pairs of gold plated RCA stereo 4 pairs of gold plated safety banana 1 mini jack 115 VAC 230 VAC 50 Hz 60 Hz 2000W max 20 mm sand filled 8 AT lt 1W 50W 2000W 325 x 105 x 420 mm 12 8 x 4 1 x 16 5 11kg 243 lb GATO AUDI9 Gato Audio Marielundvej 28 DK 2730 Herlev Denmark Phone 45 4095 2205 www gato audio com hello gato audio com 2 El z a s 2 5 2 s a 8 8
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