ekco EV55SE User Manual Download Page 5

Before connecting your amplifier all components in the system must be unplugged 
at the mains and the volume control of the amplifier set at zero.

Connecting Signal Inputs

Virtually any line level audio source component may be connected to the signal inputs. 
These include tuners, CD players etc. The inputs are all electrically identical and are named 
purely for ease of recognition.

Connect a pair of high quality screened cables terminated in RCA phono plugs from the 
LINE OUTPUT of the source component to the chosen input of the amplifier. 

When making stereo connections, RCA plugs and sockets coded white or black usually 
indicate  the  LEFT  channel  and  those  coded  red  the  RIGHT  channel.  In  a  stereo  pair  of 
sockets the upper socket is usually the Left Channel and the lower socket the Right. If you 
are in any doubt, consult a qualified dealer.

How to Connect a Loudspeaker Terminal

Strip any outer sleeve from the loudspeaker cable 
to a depth of around 40 mm (1.5”).Strip the top 
7mm of sleeving to expose the bare wire. If you are 
using stranded cable, lightly twist the strands to 
gather any loose ends.

Partially unscrew the terminal to expose the cross 
hole at the terminal base. Push the bare end of the 
cable  into  the  hole.  Ensure  that  the  polarity  is 
correct  and  there  are  no  loose  strands  which 
could touch adjacent terminals. Tighten secure

ly.

Fused IEC

Mains Input

Ground

Loudspeaker Connections

Right Speaker

Left Speaker

CONNECTIONS

5

Signal Inputs

Aux

Tape Tuner

Disc2

Disc1

Ch. A

Ch. B

Ch. B

Ch. A

ON/OFF

Switch

Summary of Contents for EV55SE

Page 1: ...C M Y CM MY CY CMY K EKCO Manual 1 pdf 2009 11 25 9 58 33 ...

Page 2: ...ipod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatuscombinationtoavoidinjuryfromtip over Unplug this apparatus during lightning storms or when unused for longperiodsoftime CAUTION This appliance operates on very high Refer all servicing to qualified service personnel Servicing is required voltages DO NOT remov...

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Page 4: ... be dry and free from litter Do not place magnetically or thermally sensitiveobjects i e creditcardsoropticaldiscs closetotheunit Valves are Microphonic Because valves are constructed from fine wires and tiny metal parts they can pick up external vibrations If you place the power amplifier too close to the speakers direct sound at high volumes may vibrate the valves 1 metre 3ft to the side of each...

Page 5: ... coded red the RIGHT channel In a stereo pair of sockets the upper socket is usually the Left Channel and the lower socket the Right If you areinanydoubt consultaqualifieddealer How to Connect a LoudspeakerTerminal Strip any outer sleeve from the loudspeaker cable to a depth of around 40 mm 1 5 Strip the top 7mmofsleevingtoexposethebarewire Ifyouare using stranded cable lightly twist the strands t...

Page 6: ...o the B terminals Bi Wiring Connecting the Mains SettheON OFFswitchontherearpaneltothe 0 OFFposition Ensure that the volume control on the front panel is at the minimum fully anticlockwise position PlugthesuppliedIECleadintothemainsinputsocket NowplugtheIECleadintothewallsocketandswitchonatthemainspoint Plug in the mains leads and switch on the power to your source units The system is now fullycon...

Page 7: ... or whenchangingdiscs andespeciallywhencleaningyourstylus Changing Loudspeakers Turn the volume control to minimum and then switch the Speaker Selector from A to B or vice versa to change loudspeakers Turning the volume down is very important if you are changingtheoutputfromalowsensitivityloudspeakertooneofhighsensitivity Changing the Mode and Negative Feedback NFB Settings Turn theVolume control ...

Page 8: ...acingdown Nowreplacethecover Point the handset away from the amplifier and press a button the indicator on the handset will flash if the batteries are correctly connected Adjusting theVolume withThe Handset Point the handset directly at the amplifier front panel Press the Volume buttons to increaseordecreasethevolume Muting theVolume Point the handset directly at the amplifier front panel Press th...

Page 9: ...e amplifier When replacing valves it is essential to use the highest quality available Poor quality valves will adversely affect the sound quality and may in extreme cases damage the amplifier When replacing the output valves use matched sets for best results Do not leave the amplifiers permanently switched on or you will seriously shorten the lifespan of your valves Output Transformer After insta...

Page 10: ...en grid to a special tapping on the output transformer a local feedback loop is incorporated around the output valves lowering their output impedance linearising the output and massively reducing distortion The result is an amplifier with most of the advantages of the triode combined with theefficiencyandpowerofamulti gridvalve Negative Feedback NFB Overall Negative Feedback NFB is a process where...

Page 11: ...and there is no suitable dealer in your area please contact the distributor forthecountryinwhichitwaspurchased It is user s responsibility to ensure that all equipment for service is returned carriage paid and in the original packaging Enclose a brief note with your name and address and the reasonforreturningtheequipment International Service Centres UK InternationalAudioGroupServiceCentre Unit4 S...

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