ekco EV55SE User Manual Download Page 11

Care And Cleaning

The surface of the equipment may be cleaned with a damp cloth provided that the power
has been removed

Solvent based cleaning materials should never be used as they may

damage the paint

If dust accumulates in the slots in the covers, brush them out with a

soft brush before cleaning the unit.

Product Warranty

Your Ekco equipment is guaranteed against any defect in material and workmanship for a
period of one year from the date of purchase with the exception of the valves, which are

warranted for three months. Within the warranty period we will undertake replacement of
defective parts free of charge provided that the failure was not caused by misuse, accident

or negligence. Your statutory rights within the territory in which you purchased the

equipment are not ected by this warranty.

If your equipment requires servicing (including valve replacement) you should return it to
the dealer from whom the equipment was purchased.
If you are abroad and there is no suitable dealer in your area, please contact the distributor
for the country in which it was purchased.
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
reason for returning the equipment.

International Service Centres

UK:

International Audio Group Service Centre, Unit 4, St Margaret’s Way, Stukeley Meadows

Industrial Estate Huntingdon, Cambs, PE29 6EB
Tel:+44 (0)1480 447700 Fax: +44 (0)1480 431767

Asia:

IAG Sales and Service Centre, Jiuwei Village, Xixiang Town, Shenzhen, China 518102.

Tel: +86-755-27484491 Fax:+86-755-29651484

Specifications

Valves:

4 x KT88: 1 x 12AX7: 4 x 12AU7

Output Power:

THD :
Hum and Noise:

Dimensions:

(D) 410mm x (W) 350mm x (H) 190mm

GrossWeight:

28kg

IAG reserves the right to adjust the

and performance from time to time.

Service Information

Ultralinear Mode:

55w/8Ω

Triode Mode:

28w/8Ω

Input

Frequency response:

20Hz to 30KHz±1dB

Sensitivity:

Ultralinear Mode:

300mV RMS for 55w/8Ω (Max FB)

Triode Mode:

300mV RMS for 28w/8Ω (Max FB)

 1%  at  1kHz

Ultralinear  Mode / Triode Mode

Ultralinear Mode:

>90dB 55w/8Ω (Max FB)

Triode Mode:

>90dB 28w/8Ω (Max FB)

11

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...

Page 3: ......

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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