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Tech Specs - PRS Guitars
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1. Loop Level Switch Select instrument for typical foot pedals stomp boxes 20db and Line for Odb studio gear Bias Jacks For reading and adjusting the bias of your power tubes 6V6 5881 EL34 Review the information on the back of this manual for guidance on replacing tubes Biasing and tube replacement should be performed only by a qualified technician Ext Jack Output for an auxiliary speaker cabinet Only use high quality speaker cables Never use a guitar cord to connect speakers See Impedance Selector instructions below Spkr Out Main output for primary speaker cabinet Make sure to use a high quality speaker cable Never use a guitar cord See Impedance Selector instructions below Impedance Selector Use this switch to match the amp to the impedance of your speaker cabinet s The total speaker impedance must be determined before connecting to the amp It is not recommended to exceed 2 total speaker cabinets Be sure to only use cabinets with the same impedance rating Failure to do so can damage the amp The combined value of 2 matching cabinet impedances is half of the value of one cabinet s impedance Examples Two 8 ohm cabinets combine to create a 4 ohm combined impedance If using two l6 ohm cabs set the Impedance Selector to 8 When using a single cab with an 8 ohm impedance set the Impedance Selector to 8 Note Confirm the total impedance of your choice of cabinets and adjust your Impedance S
2. and the amplifier can be used Jewel Power Indicator If the jewel is lit the amp is on NOTE An amplifier may be plugged in and on but a malfunctioning or burnt out indicator will not show the amp is on Check the power cord and Power Switch if the jewel light is not on If these are connected correctly then check the main fuse If the main fuse burns out check for proper speaker connections If the fuses continue to blow the amplifier may need servicing Rear Panel Controls Loop Loop LEVEL SEND RETURN amem EFFECTS LooP me Be E CH EJ oo oee O O80 sE20 ur W SPKR IMPEDANCE FOOTSWITCH OUT SELECTOR Fuses Blown fuses may indicate that the amplifier needs servicing Use only the type and rating specified on the back of the amplifier See the section on Service Notes for proper fuse servicing and replacement B Fuse High Voltage Fuse located on the underside of the chassis near the bias adjustment Fuse Main Fuses See Technical Specs for Proper Fuse Type and Rating Located in the power inlet module Effects Loop Description and Tips The 2 Channel features an Effects Loop that is integral to the overall sound of the amp This lets your amp s tone stay pure whether you choose to use and effects chain or plug straight in and rock There is no need for a bypass Loop Return Input for the end of your effect chain Loop Send Input for the front of your effects chain
3. the proper type and rating After all fuses have been replaced and the amp is tested as acceptable and safe reinstall the chassis by working in reverse Be sure to replace the reverb pan and hardware then plug the reverb cords back into place PRS SMITH GUITARS SE 2 Channel Guitar Amplifier User s Manual In the summer of 2010 we started talking about how to expand our ampli fier offerings to satisfy a new customer I knew that PRS had a great business model already with the SE guitar line and that the price quality ratio was in my opinion the highest in the industry So by applying well developed concepts from the SE line we set about the process of bringing a lower cost yet high quality amp line to market The features we wanted to offer were somewhat of a departure for us We wanted two channels with separate EQ an effects loop and reverb After sev eral weeks of tweaking we had a working prototype that was extensively field tested and we were very happy with our results This hand wired prototype with high end components and fairly labor intensive layout was used as a tonal quality and functional baseline for the actual SE amp models At this point things became interesting as the prototype was so impressive we decided to of fer it as a model We called it the 2 Channel C and offered it at the 2010 PRS Experience The C and the H subsequently became very
4. 9 x 13 762mm x 482mm x 330mm Weight 60 Lbs 27 3 kg Power Tubes should be purchased as matched sets Use only tubes in pairs that are factory matched Failure to use matched tubes can lead to tube failure and amplifier damage or abnormal operation Service Notes Tubes Tubes are consumables as they have a given usable lifespan They are part of the heart of the tone so keeping correctly operating tubes is essential Tubes can fail catastrophically or gradually and it s good to know what to Look for if they start to go bad Periodically inspect them and Look to see if anything inside the tube is glowing cherry red other than the normal orange glow of the filament This would indicate a situation where the tube is conducting more current than it is capable of handling and most likely about to fail Two other conditions to observe are filaments not glowing or 2 a miniature fireworks display inside the tube Any of the above conditions indicate serious problems with the tube and should be taken care of immediately Tubes quite often are the cause of spurious noise in the amp Microphonic tubes will squeal or rattle with the vibrations of the cabinet If suspected tap each tube Lightly with a pencil with the amp powered up the suspect tube will let you know Note that there is a normal metallic clinking when doing this but a microphonic tube will be quite loud Instructions for Qualified Service Technician To install the tube
5. Tech Specs SE 2 Channnel Amp Max Power Usage SE 50 Watt 250 Watts SE 30 Watt 250 Watts SE 20 Watt 250 Watts Pre Amp Tubes 3 each I2AX7 ECC83 3 each I2AX7 ECC83 3 each I2AX7 ECC83 3 each I2AT7 3 each I2AT7 3 each I2AT7 Power Tubes 2EA EL34 2EA 5881 2EA 6V6 Fuses I20V 60Hz T2A 250V T1 6A 250V T1 5A 250V Main Type IEC 5X20mm Type IEC 5X20mm Type IEC 5X20mm l00V 50 60Hz T2A 250V T1 6A 250V T1 5A 250V Main Type IEC 5X20mm Type IEC 5X20mm Type IEC 5X20mm 230V 60Hz T1A 250V T800mA 250V T630mA 250V Main Type IEC 5X20mm Type IEC 5X20mm Type IEC 5X20mm Filament Fuses 2EA IQA 250V 2EA IQA 250V 2EA 6A 250V Type IEC 5X20mm Type IEC 5X20mm Type IEC 5X20mm B Fuses T1A 250V T800mA 250V T630mA 250V 250V Weight 250V Type IEC 5X20mm 250V Type IEC 5X20mm Type IEC 5X20mm Head 34 2 lbs 15 5 kg 32 6 lbs 14 8 kg 29 6 lbs 13 5 kg IxI2 Combo 57 6 lbs 26 2 kg 56 lbs 25 5 kg 53 Lbs 24 1 kg Dimensions Head 21 5in X 10 5in X 9 5in 21 5 X 9 5 X 10 21 5 X 9 5 X 10 546mm X 24Imm X 254mm 546mm X 24Imm X 254mm 546mm X 24Imm X 254mm IxI2 Combo 24 X 23 X II 24 X 23 X I 24 X 23 X II Combo Speaker 6l0mm X 584mm X 279mm 6l0mm X 584mm X 279mm 6l0mm X 584mm X 279mm Combo 12 Inch 16 Ohm 100W 12 Inch 16 Ohm 100W 12 Inch 16 Ohm 100W Speaker Cabinet 2 X I2 Cabinet 100 Watts 8 Ohm Input Each Speaker 12 Inch I6 Ohm 50W CA Dimentions 30 x 1
6. be incorrectly biased and could damage the tubes and or the amp Fuses There are 4 fuses installed in the amplifier One of these fuses is accessible on the back panel the main fuse The B fuse is Located on the bottom side of the chassis There are two fuses internally for added safety The B fuse is a high voltage fuse and two internal fuses are for the Lower filament voltages In all cases labels indicate the type and rating of the fuse Replacement fuses MUST BE THE SAME TYPE AND RATING If they are not you can permanently damage your amplifier Please contact your Local PRS dealer or the PRS accessories web site for information on ordering replacement fuses Instructions for Qualified Service Technician Replacement of internal fuses requires removal of the back panel and removal of the chassis First ensure the power cord is not plugged in then remove the back panel with a screwdriver Loosen the 4 bolts holding the chassis to the top of the cabinet Check that all components are cool so that burns do not occur Then by holding onto the transformers carefully pull the chassis out NOTE Capacitors may retain an electric charge and can be dangerous even when the unit is off unplugged and has not been played for an extended period of time USE CAUTION Locate the fuse holders remove fuses and check for continuity Blown fuses can indicate a failure condition and should be treated as though a problem exists Check the Label for
7. d to the correct grounded outlet 3 Make sure there is at least 6 inches of clearance behind the amplifier to allow for proper cooling Never place the amplifier against a wall or other equipment and keep it clear of other heat sources Make sure there are no flammable items such as curtains behind the amp Do not drape items over the amps that can prevent proper cooling Do not set drinks or other liquids on top of the amp that can spill 4 To increase the life of the tubes set the On Standby Off switch to the STANDBY position before powering on Let the amp warm up for 2 minutes before setting the switch to ON If this is the first time you are turning on the amp check to see if all of the tubes are glowing 5 Plug in the guitar cable turn the volume knob down and turn the On Standby Off switch to ON Wait a few seconds for the bias to settle Bring the volume up and play some tunes Over view of Amplifiers The SE 20 is a little amp with a chip on its shoulder It is perfect for home recording and small venues due to its ability to achieve powerful rich tones at lower volumes The SE 20 uses 6V6 tubes and 20 watts of power for the ideal mix of Lullaby cleans and rude crunchy grit The SE 30 offers the time tested perfect power and volume for live club performances and pro recording The 588 tubes and 30 watts give you a thick British crunch and sparkly American clean The SE 50 is the screamer of the bunch Pro traveling musicia
8. e PRS headstock shape the PRS body shape the PRS scoop design Singlecut Mira and the SE are all registered trademarks of Paul Reed Smith Guitars Custom 24 Modern Eagle SE Custom SC 245 SC 250 Starla Tonare Sewell Blue Sierra and Angelus are all trademarks of Paul Reed Smith Guitars The Birds New Birds are copyrighted by PRS Guitars PANEL 4
9. ean Channel Volume The volume control allows a ton of headroom for sparkly chimey cleans tones If you prefer your cleans dirty push the control past o clock or so This will let you experiment with some great overdrive Bright Switch The Clean channel s bright switch is most responsive at Lower volumes It lets extra highs to stay in the mix as you go down the sweep of the volume Treble Back off for warm smooth tones Dial up for more spank and cut Middle On the clean channel dial down the mids for classic blues scoop Dial up to find unique placement in a mix Bass The Clean channel s bass control crucial to finding just the right fatness in your clean tones The sweep is very sensitive and the sweet spot seems to be around o clock PANEL 2 Global Reverb Adds universal depth to both channels at your discretion Adjust to taste Lead Master Increases the overall volume and output of your lead channel Find just the right setting before the neighbors call the cops Clean Master Gives you incredible control to find the perfect balance of volume compared to your Lead channel On Standby Off When this switch is in STANDBY the amplifier tubes are effectively turned off but are still being warmed by the filaments Keep this switch set to STANDBY when powering on the amplifier for at least 2 minutes to allow the tubes to warm up This also helps extend the life of the tubes When set to ON the tubes are turned on
10. elector accordingly Failure to do so can cause arcs on the tube sockets failure of power tubes or even failure of the amp Footswitch Jack Connect the included footswitch to control channel switching and global reverb This bypasses your Lead Clean Selector on the front of your amp The footswitch cables is a TRS Stereo 4 inch M M cable PANEL 3 Footswitch Operation The footswitch is used to control 2 things The left switch controls which channel is active The right switch is used to control the reverb as either on or off When the LED above the Left switch is on the Gain Channel is selected Then the LED above the left switch is off the Clean Channel is selected When the LED above the right switch is on the reverb is turned on When the LED above the right switch is off the reverb is bypassed Speaker Cabinet Speakers 2 each I2 inch 16 ohm 50 Watt Speaker cabinet is a 100 Watt Cabinet at 8 Ohms Tube Chart 2 Channel C and H Reverb Transformer 12AT7 12AT7 TSR12AX7 ECC83S ECC83S of Oo OO O Oo Power aoe aaa a 12DW7 O i j Output i i Transformer Transformer Bottom View Back of Amplifier This Side Power Tubes 2 Channel H 6L6 2 Channel C EL34 20II PRS Guitars All rights reserved Paul Reed Smith PRS the PRS Logo the PRS Paul Reed Smith logo the Paul Reed Smith signature the bird inlays the headstock bird th
11. ns will Love the extra clarity and punch that the EL34 tubes and 50 watts of power provide The SE 50 can handle just about any live performance you can imagine in a simple package Before using your amplifier refer to the IMPORTANT SAFETY INSTRUCTIONS insert supplied with the product SE 2 Channel Amplifier Front Panel Controls FIGHT an CLEAN CHANNEL DOO VOLUME TREBLE MIDDLE BASS oe LEAD CHANNEL VOLUME TREBLE MIDDLE BASS Aunt LEAD CLEAN on QAU 0040 oF REVERB MASTER MASTER SE 20 Input 4 standard guitar cord Lead Clean Selector Select your channels when not using your footswitch Up for leads down for cleans This switch is bypassed when using the footswitch Lead Channel Volume This is a vital control on the lead channel It will add gain to allow you to go from subtle crunch to full on in your face distortion Each guitar will react differently and exploring this control should be a source of great enjoyment Bright Switch Adds extra shimmering highs to cut through a mix Turn off for a round warm crunch Treble The treble control is very sensitive Let your ears guide you to the appropriate amount of highs to suit your style and performance Middle Valuable control to go between scooped 80 s metal or vocal solo sounds Bass Use this control sparingly Back off to 9 o clock when experimenting with overdrive Consider the maximum setting around 3 o clock Cl
12. popular models Working with consultants and experts completely versed in cost effective tube amplifier design we designed a manufacturing friendly clone of the prototype After many weeks of tweaking and developing their own tonal signatures the final family of PRS SE amps was approved for manufacture There is a great boutique attitude pervasive with the design and construction of these amps that make me very proud to be part of the project Some of the features include custom wound transformers 090 aluminum chassis high end on on on switches the best sounding NNS tubes at any price custom voiced speakers custom knobs etc I cannot effectively describe the sense of teamwork passion and hard work as sociated with this endeavor but I feel it will be very evident in the final product I would like to commend everyone that worked on it each person did a fan tastic job The process has been delightful from start to finish and I personally cannot wait until I can purchase my own or more realistically one of each Thanks for your support Tove Ewer at ee PANEL Using your PRS Amplifier IMPORTANT Before using your amplifier refer to the IMPORTANT SAFETY INSTRUCTIONS insert supplied with the product Powering Up Make sure your speaker cabinet is connected to the correct speaker output impedance jack with a high quality speaker cable Do not use guitar cords 2 Make sure the power cord is connecte
13. s check that the power cord is not plugged in then remove the metal back panel with a screwdriver and notice the tube sockets Looking from the back install the Power tubes EL34 5881 etc in the sockets In each case align the center pin guide correctly with the socket making sure that the pin guide key fits with the corresponding slot in the socket The preamp tubes can then be placed in the smaller 9 pin sockets Please refer to the tube chart in this manual inside panel 4 for proper tube locations Be aware of the pin alignment with these as there is only one way they can fit We utilize tube sockets that allow relative ease of tube installation but never force tubes into the sockets if there becomes a problem Also never torque the tubes only gently rock them from side to side during insertion or removal After preamp tube installation place the cylindrical spring tension preamp tube covers over the tubes Replacing preamp tubes will not require any adjustment but the power tubes will need rebiasing to assure proper operation After power tube replacement initially inspect the tubes often to assure there are no cherry red components within the tube Tubes today can have a wide variety of tolerances and a re bias is highly recommended with new ones Suggested Tube Biasing SE 20 6V6 2ImV SE 30 5881 35mV SE 50 EL34 37mV Note to set your meter to millivolts for your reading Failing to do so could cause the amp to
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