A115 Stereo MOSFET Power Amplifier
Contents
1. Linar Audio A115 Stereo MOSFET Power Amplifier User Manual Linar Audio A115 Stereo MOSFET Power Amplifier Important Safety Instructions DN O OA NS 10 11 12 13 14 15 Read carefully these instructions Keep these instructions in a safe place Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with a dry cloth Do not block ventilation openings Install in accordance with the manufacturer s instructions Do not install near any heat sources such as radiators heat registers stoves or another apparatus that produces heat Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other North American standard A grounding type plug has two blades and a third grounding prong The wide blade or the third prong is provided for safety If the provided plug does not fit into the outlet consult an electrician for replacement of the obsolete outlet Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Only use attachments and accessories specified by the manufacturer Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury Unplug this ap2. into two jacks the right jack and the left jack The supplied shorting plugs shall be inserted into the unused jacks The speaker is then connected between the two red output terminals Nothing must be connected to the black terminals If you wish to maintain correct absolute polarity the red speaker cable should be connected to the right red terminal Note that using two amplifiers in this way you can obtain about four times the normal power SPEAKER JO Bridged operation Pontage Refer to owner manual for instructions Se r f rer au manuel du propri taire pour instructions RISK OF ELECTRIC SHOCK DO NOT OPEN ATTENTION RISQUE D LECTROCUTION NE PAS OUVRIR AC in Entr e CA Richt input Left ir ut Entr e u site Entr2 gauche Fuse Figure 2 Connection for bridge mono operation Made in Canada by Fabriqu au Canada par LINAR Linar Audio A115 Stereo MOSFET Power Amplifier Front Panel gt I Figure 3 Linar 115 Amplifier Front Panel Front Panel 1 On Off Power and LED Indicator Always press the Power button to turn on or off the amplifier There is a soft start circuitry preventing large in rush current during power on You will hear a click from relays when you turn on the Linar A115 Amplifier A blue LED illuminates the transparent Lexan panel when the amplifier is powered Linar Audio A115 Stereo MOSFET Power Amplifier Specifications of Lin
3. IN AIR Connections 1 and 2 RCA Jacks The Linar A115 Amplifier has 2 sets of single ended inputs Each single ended input is composed of a pair of RCA jacks labelled and This arrangement allows bridging of the amplifier as discussed in a following section Single ended operation One RCA jack is used per side insert the interconnect cable to the RCA jacks Shorting plugs are supplied and must be placed in the unused RCA jacks Ensure you properly connect the left and right channel inputs to your pre amplifier output Linar Audio A115 Stereo MOSFET Power Amplifier 3 and 4 5 and 6 7 and 8 XLR Balance Input These are labelled BALANCED XLR AND INPUT Ensure you properly connect the left and right channel inputs to your Pre amplifier output Balanced operation Use the XLR inputs connectors before be sure to remove the shorting plugs on the RCA jack Pin No 1 Ground Pin No 2 input Non inversing input Pin No 3 input Inversing input Speaker Connections The Linar A115 Amplifier has two sets of binding post for speaker connections There are Left and Right Output Speaker connections Ensure you connect the correct speaker to the correct output for proper system performance Follow each speaker wire from the amplifier to the appropriate speaker to make certain you have connected them properly The outputs are coloured red and the outputs are coloured black Ensure all outpu
4. ar A115 Amplifier Output power at 8 ohms 150 watts ch Output power at 4 ohms 300 watts ch Output power at 2 ohms 600 watts ch Total Harmonic Distortion rated power 20 20kHz lt 0 4 0 05 1kHz Total Intermodulation Distortion Typically 0 05 Note 1 Signal to NOISE TAO iia 103 dB below max power Frequency Response ooooooonccoconocononononcarono nos 1Hz 250kHz 0 3dB Input Impedance ii iia 53 3 KQ Output impedance ic uken 0 016 Q Damping PACION ess Seen gt 500 Input sensitivity RCA inputs rrrrrrrrnrnrrrnrrrnernn 1 26 V rms for max power Balance input SensitiVity o oooocccccccccccccnconoso 0 63 V rms for max power Gasa AE 27 4 times the input signal or 28 8dB Channel separation usavasnsansnsmamaidistene gt 100dB Class of OperatiON oooooocoocccccococnccccncnnncnnos AB Power consumption at idle oo oooocococccccc 90W Power Supplysumuamusuigau fanget dane esta apa 1280VA Custom Toroidal Transformers A amet 28kg 65 lbs with packaging Dimensions VWXHXD J sssssssessssssersssessorsssre rer es rar ra 457mm x 200mm x 300mm 18 0 x7 87 x15 38 Note 1 According to IHF A202 standard for the purpose of this standard F1 shall equal 60Hz and F2 shall equal 7000Hz the low frequency sine wave having an amplitude 4 times greater than that of the high frequency sine wave The measurements of Linar Amplifiers are in respect o
5. f this standard but with any frequency combination in any ratio 10 Linar Audio A115 Stereo MOSFET Power Amplifier Service and Warranty Linar Audio A115 Amplifier is covered for a period of 5 years against manufacturing defects This warranty includes parts labour and return shipping to the original and subsequent owners In the unlikely event you experience technical problems with your Linar Amplifier please contact your dealer for troubleshooting tips If no solution can be found please contact Linar Audio using the contact information provided below If there is no authorized service technician in your area a Return Authorization may be given to you Only after obtaining a Return Authorization should you send your Amplifier to the manufacturer Linar Audio will either repair or replace your amplifier at their discretion This warranty will be considered void if any defect failure malfunction or other damage is deemed to have been caused by mistreatment of the amplifier Mistreatment includes but is not limited to abuse tampering servicing of the amplifier by unauthorized technicians and failure to conform to operating instructions listed in this manual There are no user serviceable parts in the Linar Audio A115 Amplifier Servicing should only be performed by factory authorized technicians or by Linar Audio Contact Information Linar Audio 2009 Inc 50 Willard Street Ottawa ON K1S 1T8 CANADA Tel 613 261 8466 E
6. mail service linaraudio com www linaraudio com LIN 030 001 03E 11
7. ng or disconnecting any cables ALWAYS use three connector AC main power cord including a protective grounding protection NEVER use ground lifting and ground plug must be left intact Failure to comply will void the warranty and could pose a serious risk to your health and safety ALWAYS provide a minimum a 10 cm 4inches of clearance above the amplifier to allow for heat dissipation NEVER use flammable or combustible chemicals for cleaning audio components NEVER wet the inside of this product with any liquid NEVER pour or spill liquids directly onto this unit NEVER block air flow through ventilation slots or heatsinks NEVER bypass any fuse NEVER replace any fuse with a value or type other than that specified NEVER attempt to repair this product If a problem occurs contact your Linar Audio dealer NEVER remove the top cover Internal components can store electricity and could result in serious electrical shock or injury There are no user serviceable parts NEVER expose this product to extremely high or low temperatures NEVER operate this product in an explosive atmosphere ALWAYS unplug sensitive electronic equipment during lightning storms Linar Audio A115 Stereo MOSFET Power Amplifier Contents Important Safety Instruclions santas Os 2 A E ESA RER ANS 5 UNDPACKING alan le ats lees RR RR CPAD PARAR RR RR e 5 Rear PANEL sau ile 6 Bridged Mono OPS dia 8 Front Pane PPP o kes 9 Specifications of Linar A115 Am
8. ompleted unpacking perform a thorough inspection of the amplifier and report any damage to your dealer immediately lt is recommended to allow the unit to acclimatize to the temperature and humidity conditions in your home prior to operation Please write below the serial number of your Linar Audio Model A115 Stereo Amplifier located on the rear panel for future reference Serial number Linar Audio A115 Stereo MOSFET Power Amplifier Rear Panel All connections are accessible from the rear panel of the amplifier Familiarize yourself with the layout of the rear panel prior to placing your amplifier on a shelf or in a cabinet Ideally you should have easy and open access to the rear panel to make connections easier and to reduce any crimping or pressure on your cables Connections should be made with all system components turned off The performance of the system can be significantly improved by using high quality interconnect and speaker cables Right output Bridged operation Pontage Refer to owner manual for instructions Se r f rer au manuel du propri taire pour instructions Sortie droite CS AUTION 1 GND RISK OF ELECTRIC SHOCK 2 lt gt DO NOT OPEN 3 lt gt Made in Canada by Balanced XLR Balanced XLR ATTENTION Fabriqu au Canada par RISQUE D LECTROCUTION NE PAS OUVRIR Right input Left input an N Entr e droite Entr e gauche Fuse Fusible Figure 1 Linar Audio A115 Amplifier Rear Panel L
9. paratus during lightning storms or when unused for long periods of time Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as when the power cord or plug has been damaged liquid has been spilled or objects have fallen into the apparatus or the apparatus has been exposed to rain or moisture does not operate normally or has been dropped No naked flame sources such as candles should be placed on the apparatus WARNING TO REDUCE THE RI SK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPLI ANCE TO RAIN OR MOI STURE Linar Audio A115 Stereo MOSFET Power Amplifier CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the product Please read completely and observe all instructions and precautions in this owner manual before operating your Linar A115 Amplifier Retain this owner s manual for future reference 1 2 13 14 15 ALWAYS disconnect the AC main power cord mains before connecti
10. plis a 10 Service and Warranty ES 11 Linar Audio A115 Stereo MOSFET Power Amplifier Introduction Thank you for choosing the Linar Audio A115 Stereo Amplifier Linar Audio products are the fruit of extensive research and development in the audio field Linar Audio Amplifiers are designed to provide the world class performance The Linar A115 Amplifier is designed with J FET transistors in the input stage and MOSFET transistors in the output stage without negative feedback making the amplifier extremely stable under capacitive load The circuitry is fully complementary from input to output Aesthetically stunning and sonically spectacular the Linar A115 is a perfect match for your high end 2 channel sources As with many high end audio products your Linar Amplifier will require a significant break in period This process can take up to 200 hours of use Familiarize yourself with the material contained within this manual prior to using in order to get the full benefit of your investment If you have any uncertainties contact your Linar Audio dealer Given proper use and care your Linar Audio Amplifier should provide you with many years of exceptional music reproduction and listening pleasure Unpacking Unpack your Linar A115 Amplifier carefully as it is quite heavy Keep all packaging to ensure safe transport in the future Accessories included with your amplifier are v AC Power Cord v This Owners Manual After you have c
11. ts from the amplifier match the inputs of your speakers so you will not encounter phase problems The speaker outputs will accept most common wire connectors including banana plugs spades and bare wire Under no circumstances should your speaker cables be allowed to short circuit the amplifier by contacting the and outputs simultaneously AC Line Cord Receptacle and Fuse Holder The Linar A115 Amplifier has an IEC type AC power connector Insert the supplied AC power cord into connector prior to plugging the cord into the AC wall receptacle The AC main fuse is accessible below the IEC receptacle If you suspect that the fuse has blown disconnects the AC Line Cord and pull out the fuse holder with a small flat screwdriver inserted in the slot accessible by the IEC receptacle Replace the fuse by the following type Main Voltage 120VAC Fuse type 5mm x 20mm slow blow Rating 8A 125VAC or 250VAC Main Voltage 230VAC Fuse type 5mm x 20mm slow blow Rating 4A 250VAC Linar Audio A115 Stereo MOSFET Power Amplifier Bridged Mono Operation In Bridged mode two channels are used to amplify a single channel therefore you require two amplifiers for stereo The Linar A115 Amplifiers may be configured for bridged operation without the use of external or internal switches or jumper Refer to figure 2 for set up To use this mode you will need a Y adapter so that you can feed the same signal one of the preamplifier s two channel
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