Plinius Reference A-150 Instruction Manual Download Page 1

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REFERENCE A-150

Power Amplifier

Instruction Manual

Pure Powerful Sophisticated

pliniusaudio.com

Summary of Contents for Reference A-150

Page 1: ...REFERENCE A 150 Power Amplifier Instruction Manual Pure Powerful Sophisticated pliniusaudio com...

Page 2: ...ration 11 Product Features 15 Loudspeaker Selection 17 Troubleshooting 18 Specifications 19 Index 20 All operational technical and descriptive material in this publication is subject to change at any...

Page 3: ...esign and the variety of ways it may be used We have designed and manufactured this amplifier to reproduce your favourite music faithfully and accurately With a little care and a full understanding of...

Page 4: ...kept unimpeded Ensure heat vents slots in the base and lid are not covered or restricted in any way Equipment racks should be of an open type with no closed side panels and no closed front or rear pa...

Page 5: ...itch or a switch setting is not used it is a good idea to toggle small switches and turn rotary switches though the full range of the switch several times in succession to keep the contacts active Per...

Page 6: ...lst running as this could pose a serious fire risk DO NOT attempt to connect any input of this amplifier to its own outputs DO NOT earth any output terminal or connect any of these terminals together...

Page 7: ...input cables while the amplifier is switched on and connected to the loudspeakers so a Mute button is fitted to interrupt the input signal This allows you to connect and disconnect the input cables wi...

Page 8: ...amplifier will quickly increase and the amplifier will become quite hot Ensure that you have left adequate space around the amplifier for ventilation The power required from the mains supply in Class...

Page 9: ...e rear panel RCA INPUTS These standard RCA terminals are for use with unbalanced signals from most signal sources such as audio preamplifiers XLR BALANCED INPUTS XLR connectors fitted to this amplifie...

Page 10: ...tput signal from a balanced stereo input signal connected to both the left and right XLR inputs XLR BALANCED MONO In this mode both channels of your Reference A 150 combine to operate as a true balanc...

Page 11: ...amplifier You will notice that a fuse holder is mounted within this connection and it holds a mains fuse to provide surge and overload protection for your amplifier 6 REMOTE TRIGGER SOCKET In order to...

Page 12: ...ing suitable single ended RCA or Balanced XLR interconnect cables only If using single ended RCA inputs connect your preamplifier to the RCA inputs on the back of the Plinius Reference A 150 Make sure...

Page 13: ...ir and the lower red binding post for the second bi wire pair Details for MONO setup are later in this section NOTE be sure to disconnect the bridging plate from the speaker input Consult the instruct...

Page 14: ...d mono mode the only input made to your preamplifier is to the RIGHT channel XLR input The LEFT channel XLR input of the Reference A 150 is not used in XLR Balanced Mono mode In Mono mode the loudspea...

Page 15: ...u can now enjoy your new Plinius Reference A 150 power amplifier NOTE This unit must be connected to a mains socket outlet with a protective earthing connection The wall outlet socket or Reference A 1...

Page 16: ...T A FUSE WITH A HIGHER RATING NOTE Fuse failure may indicate a severe problem Check all speakers and speaker cables for damage etc Should the amplifier continue to exhibit rail fuse failure contact yo...

Page 17: ...damage to the thread could occur MAINS LINE FUSE A Mains Line fuse is fitted within the IEC Mains Line socket on the rear of the amplifier A small drawer at the bottom of this socket may be removed af...

Page 18: ...ue to any amplifier clipping your amplifier should have a higher power rating than your speakers You may find loudspeaker specifications confusing or misleading so you should discuss this with your au...

Page 19: ...the unit is in Mute mode The Mute LED should be OFF for operational mode SOUND IS QUIET OR DISTORTED Check the ACS is set correctly If the switch is set incorrectly the output may be quiet or inverted...

Page 20: ...nto 4 FREQUENCY RESPONSE 20Hz to 20kHz 0 5dB 3dB at 70kHz DISTORTION 0 03 THD at rated output power OUTPUT CURRENT 50A short duration peak per channel Fuse protected INPUT IMPEDANCE 47k HUM NOISE 100d...

Page 21: ...put Terminals 8 11 Loudspeaker Impedance 17 Loudspeaker Power 17 Mains Line Fuse 16 Mains Supply Connection 13 Mains Switch 10 Mono Operation 9 12 Mute Switch 6 Operating Temperature 3 5 Output Termin...

Page 22: ...s Our products deliver honest reproduction of the music the artists have recorded fine designs that are acknowledged as world leading and build quality that will stand the test of time We achieve this...