CEBEK E-8 User Manual

E L E C T R O N I C C I R C U I T S
100 W. HI-FI POWER STAGE
The E-8 module is a Hi-Fi power stage with direct connection, without output capacitor. It could offer 100 W. as
maximum power. Its mains characteristic its high quality as well as its reduced distortion. It includes protection against
output short-circuits and connection terminals.
Because all the following information is very important to obtain a correct module operating, we recommend you to
completely read the instruction manual.
TECHNICAL CHARACTERISTICS.
- Symmetrical Voltage ........................................................................................... +/- 42 V. D.C.
- Minimum Consumption ..................................................................................... 25 mA.
- Maximum Consumption .................................................................................... 2.2 A.
- Input Sensitivity .................................................................................................. 700 mV.
- Input Impedance ................................................................................................ 47 KOhms.
- Output Impedance ............................................................................................ 4 - 8 Ohms.
- Frequencies Margin ............................................................................................ 20 - 20 000 Hz.
- Distorsion At 1 W. ............................................................................................... 0,01 %
- Distorsion at Maximum Power ........................................................................... 1 %
- R.M.S. ................................................................................................................. 100 W.
- Musical Power .................................................................................................... 150 W.
- Sizes ................................................................................................................... 110 x 110 x 70 mm
OPERATING.
MODULE 'S SUPPLYING.
for this reason we suggest you to not use simple supply equipment neither rectifiers, which could negatively affect the
module's operating , but a power supply.
We recommended you the FS-8 power supply which has been developed to perfectly answer to the circuit needs.
Connect the positive, the negative and zero of the power supply to the corresponding terminals indicated in the
schedule. The distance between power supply and module have to be as short as possible (15 cm as maximum.) Verify
that the assembly has been correctly done.
To obtain a correct module's operating we suggest you to protect is against mains interference, to do that you have to
place between the mains and the transformer a filter (See the paragraph "Installation of the Filter").
OPERATING. See the paragraph "General wiring map". When the connections of the power supply are made, install a
loudspeaker to the indicated terminal. The loudspeaker must to be 100 W (as minimum). Nevertheless, we suggest you
to place a loudspeaker with 110 W. (as minimum power). If you use quality loudspeaker, you could highly appreciate the
assembly.
INPUT SIGNAL.
The input signal could be supplied by auxiliary devices as mixing desk, etc... but this input could not
exceed 700 mV. Connect input terminals indicated in the schedule, and the distance between module (power stage)
and its signal supply, has to be as short as possible. Use shielded cable for this assembly.
PROTECTION AGAINST SHORT-CIRCUITS.
enough to allow you to disconnect the power stage. If this time is higher, loudspeakers of the module could be
damaged.
INSTALLATION.
It is obligatory to install the power stage in vertical position, to avoid to damage the operating and/or
the module. To install the power stage, we suggest you to fit it into a metallic box. This last has to be enough stronger
to include module and its power supply as well as well ventilated. Indeed, during its operating the module will heat.
Connect the ground to the box chassis.
The E-8 module had to be supplied by symmetrical voltage +/- 42 VDC, correctly stabilised,
The protection against output short-circuits is only 30 sec. This time is
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E-8