RGM175 and RGM300
Contents
1. warranty redgumaudio com oe OOO Operating Instructions amp Specifications REDGUM Amplifier M odels RGM175 amp RGM300 Australia was By REDGUM Audio Pty Ltd Factory 3 25 Clarice Road Box Hill South 3128 Australia ABN 45 093 182 515 Initial Setup Unpack the three units amp check for damage The Left and Right power amplifiers are iden tical other than a fine coloured ring around the input plugs Red for Right Black for Left The front panels have been matched to be stacked so Right channel bottom left chan nel middle Preamp top Place the right chan nel in the position for the bottom of the stack Next place the left channel on top followed by the Pre amp Use the 3pin control leads packed with the pre amp to hook the Control supplies from the preamp to both power amps This supply is used for the cooling fans and to close the power up relays Locate the supplied RCA audio leads and connect from the Left Out of the preamp to the nput on the left channel power amp Likewise the Right Out on the preamp to the nput on the Right power amplifier Use 3 x IEC power leads 1 for the preamp and 1 for each power amp and connect to a power source or power Input Connections Make sure that your REDGUM Amplifier is disconnected from the mains power before making any input connections to your other equipment Failure to do so may result in an electric shock and or damage to2. Troubleshooting Lost keys can be replaced Information is kept on file at the factory about every REDGUM amplifier manufactured By quoting the Serial Number on the under side of your amplifier on the carton or on the Final Test Report another key can be provided Just Fax a request for a new key and your FINAL TEST REPORT noting any change of address to REDGUM Australia Fax 61 3 9897 1399 A replacement key will be sent by Air Mail the same day 2k 2k 2K OK K When turning the power on a slight pop may be heard from the speakers This is normal and will not damage your loudspeakers When turning the power off the amplifier will continue to operate until the reservoir capacitors are exhausted during this time odd sounds may be heard they also are normal and will not harm your speakers kkk OK k DO NOT REMOVE THE COVER on your REDGUM amplifier there is the RISK of a FATAL ELECTRIC SHOCK xk kK k k The only fuse used is the mains fuse located on the outside of the case in a small compartment of the IEC mains input connector This connector is found where the mains power cord plugs in at the rear of the amplifier To check for a blown fuse turn off the power at the wall socket and remove the plug Pull the power cord from the IEC socket and locate the small drawer under the socket Remove the drawer by pulling straight out Pull the fuse from the holder and check the fine internal wire If it is incomple
3. e C D input has the shortest path to the power amplifier followed by the VCR etc The label above the controls is made of removable material and it can be removed by genily lifting the edge and peeling back The REDGUM amplifier is fully Dual Mono in operation and has a separate level control for each channel These controls are normally moved together but can be moved separately to achieve balance These volume controls should approximate live concert hall levels at the 12 O clock position In this position clipping of the signal is rare and no damage to speakers or amplifier should result However pushing to the 2 O clock position and beyond can result in clipping distortion which is the major cause of speaker damage so use with care The REDGUM amplifier uses new generation Metal Oxide doped Silicon Field Effect Transistors MOSFETs which can operate into impedances below 1 ohm without damage as they are not prone to secondary breakdown like normal transistors But long term very high listening levels with speaker impedances below 4 ohms may cause the internal heatsinks to rise past 80 degrees Centigrade This will result in the protective thermal cut out operating and shutting off power to the amplifier The cooling fans continue to run The power will automatically be restored once the
4. te replace it with the spare fuse located in the body of the drawer The fuse is a SAFETY device DO NOT experiment with other sized fuses Severe damage and or a FATAL electric shock could result REDGUM fuse values are as follows 175watt amplifier used on 220 250v 2Amp 175watt amplifier used on 100 120v 4Amp 300Watt Amp used on 220 250V 4amp 300Watt Amp used on 100 120V 8amp If in any doubt whatsoever consult your dealer 2 2K KKK Before returning your amplifier for repair service you should try the following test Disconnect all connectors from inputs Tape Out and speaker terminals Connect a pair of speakers with attached leads from another system that you know is working Also connect a CD player using its leads that you know is working By doing this you can establish whether the fault lies with the amplifier or another part of your system Warranty Registration IIIT ISIIII III III IIIa III IIdI riete Complete for Warranty Registration Name Address City Zip code Country Date of purchase Place of purchase Model No Serial No if any Fax this page to the REDGUM Audio factory at 613 9897 1399 or Email details incl S N to lt warranty redgumaudio com gt 7272727727 272772727 27 27 ST r r C 27 2727 272727 r C a 27 27 a Ga Gr Cr a Er 272727275727 727 S727 S727 r 7ST r C 27 S727 272727577 7 Gor 7 a Ga Gr Cr a Er IIIT III III IIIa SISI JIJI REDGUM cee NY redgumaudio com
5. tening area by connecting the positive terminal of the right speaker to the positive red terminal on the Right channel of your REDGUM amplifier Connect the other terminal on your right speaker to the amplifier Black terminal Hook up your left speaker using a similar proceedure Before turning the power on check that wiring terminations look neat and that no loose strands of wire are touching another terminal Failure to make neat connections may result in poor sound and or amplifier damage NOTE The second set of speaker terminals on larger REDGUM amplifiers are for Bi Wiring Consult your dealer with information on your loudspeakers for details on whether Bi Wiring is possible with your system REDGUM Amplifiers The power switch is on the left of the front panel of the pre amplifier and is operated by the key provided The power is off when the key is vertical To turn on the power rotate the key clockwise 1 4 turn The key can be removed in the on position but for safety reasons it is suggested that the key be left in when the power is on If preferred the key switch can be left in the on position and the power controlled from the wall outlet The Input Selector is on the right hand side of the front panel and rotates from CD through to Tape 2 All of the inputs have the same sensitivity so any line level input can be connected to any position The layout shown on the diagram is preferable because th
6. the amplifier Connect your Compact Disc player to your REDGUM amplifier using high quality RCA interconnects between your player and the sockets labelled CD Left output on CD to Left input on Amplifier Connect a Video Cassette Recorder to the sockets labelled VCR Left output on VCR to Left input on Amplifier Connect AmFm tuner to sockets labelled AmFm Left output on tuner to Left input on Amplifier Connect a Cassette deck or DAT tape to sockets labelled Tape 1 Left output on CD to Left input on Amplifier Connect any audio product to any unused inputs NOTE Connect any Line Level inputs to your REDGUM input sockets as all inputs are direct connected to the power amplifier stages when selected on the front panel Any selected input is also direct connected to the Tape Out sockets for straight through or unprocessed recording Control QF 1 Speaker red black O E red black Speaker Connections Make sure that your REDGUM Amplifier is disconnected from the mains power before making any connection to speaker terminals Failure to do so may result in an electric shock and or damage to the amplifier On each power amplifier there are 2 Red and 2 Black terminals For normal operation you will use only 1 Red and 1 Black terminal the others are for Bi Wiring see below Using heavy speaker cable 2mm minimum hook up the speaker on the right side of your lis
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